Rename "tests/lexers" to "tests/snippets" and update the contribution

docs to point to both snippets and examplefiles.

76 files changed, 1450 insertions, 0 deletions

diff --git a/tests/snippets/python/test_fstring_01a.txt b/tests/snippets/python/test_fstring_01a.txt
new file mode 100644
index 00000000..406e2cc8
--- /dev/null
+++ b/tests/snippets/python/test_fstring_01a.txt
@@ -0,0 +1,25 @@
+---input---
+f'My name is {name}, my age next year is {age+1}, my anniversary is {anniversary:%A, %B %d, %Y}.'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'My name is ' Literal.String.Single
+'{'           Literal.String.Interpol
+'name'        Name
+'}'           Literal.String.Interpol
+', my age next year is ' Literal.String.Single
+'{'           Literal.String.Interpol
+'age'         Name
+'+'           Operator
+'1'           Literal.Number.Integer
+'}'           Literal.String.Interpol
+', my anniversary is ' Literal.String.Single
+'{'           Literal.String.Interpol
+'anniversary' Name
+':'           Literal.String.Interpol
+'%A, %B %d, %Y' Literal.String.Single
+'}'           Literal.String.Interpol
+'.'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_01b.txt b/tests/snippets/python/test_fstring_01b.txt
new file mode 100644
index 00000000..278258e2
--- /dev/null
+++ b/tests/snippets/python/test_fstring_01b.txt
@@ -0,0 +1,25 @@
+---input---
+f"My name is {name}, my age next year is {age+1}, my anniversary is {anniversary:%A, %B %d, %Y}."
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'My name is ' Literal.String.Double
+'{'           Literal.String.Interpol
+'name'        Name
+'}'           Literal.String.Interpol
+', my age next year is ' Literal.String.Double
+'{'           Literal.String.Interpol
+'age'         Name
+'+'           Operator
+'1'           Literal.Number.Integer
+'}'           Literal.String.Interpol
+', my anniversary is ' Literal.String.Double
+'{'           Literal.String.Interpol
+'anniversary' Name
+':'           Literal.String.Interpol
+'%A, %B %d, %Y' Literal.String.Double
+'}'           Literal.String.Interpol
+'.'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_02a.txt b/tests/snippets/python/test_fstring_02a.txt
new file mode 100644
index 00000000..359c13be
--- /dev/null
+++ b/tests/snippets/python/test_fstring_02a.txt
@@ -0,0 +1,13 @@
+---input---
+f'He said his name is {name!r}.'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'He said his name is ' Literal.String.Single
+'{'           Literal.String.Interpol
+'name'        Name
+'!r}'         Literal.String.Interpol
+'.'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_02b.txt b/tests/snippets/python/test_fstring_02b.txt
new file mode 100644
index 00000000..abef1600
--- /dev/null
+++ b/tests/snippets/python/test_fstring_02b.txt
@@ -0,0 +1,13 @@
+---input---
+f"He said his name is {name!r}."
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'He said his name is ' Literal.String.Double
+'{'           Literal.String.Interpol
+'name'        Name
+'!r}'         Literal.String.Interpol
+'.'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_03a.txt b/tests/snippets/python/test_fstring_03a.txt
new file mode 100644
index 00000000..3edee4cf
--- /dev/null
+++ b/tests/snippets/python/test_fstring_03a.txt
@@ -0,0 +1,14 @@
+---input---
+f'input={value:#06x}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'input='      Literal.String.Single
+'{'           Literal.String.Interpol
+'value'       Name
+':'           Literal.String.Interpol
+'#06x'        Literal.String.Single
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_03b.txt b/tests/snippets/python/test_fstring_03b.txt
new file mode 100644
index 00000000..f7723898
--- /dev/null
+++ b/tests/snippets/python/test_fstring_03b.txt
@@ -0,0 +1,14 @@
+---input---
+f"input={value:#06x}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'input='      Literal.String.Double
+'{'           Literal.String.Interpol
+'value'       Name
+':'           Literal.String.Interpol
+'#06x'        Literal.String.Double
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_04a.txt b/tests/snippets/python/test_fstring_04a.txt
new file mode 100644
index 00000000..85619ab8
--- /dev/null
+++ b/tests/snippets/python/test_fstring_04a.txt
@@ -0,0 +1,13 @@
+---input---
+f'{"quoted string"}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'"'           Literal.String.Double
+'quoted string' Literal.String.Double
+'"'           Literal.String.Double
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_04b.txt b/tests/snippets/python/test_fstring_04b.txt
new file mode 100644
index 00000000..bd6308c2
--- /dev/null
+++ b/tests/snippets/python/test_fstring_04b.txt
@@ -0,0 +1,13 @@
+---input---
+f"{'quoted string'}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+"'"           Literal.String.Single
+'quoted string' Literal.String.Single
+"'"           Literal.String.Single
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_05a.txt b/tests/snippets/python/test_fstring_05a.txt
new file mode 100644
index 00000000..18074571
--- /dev/null
+++ b/tests/snippets/python/test_fstring_05a.txt
@@ -0,0 +1,16 @@
+---input---
+f'{f"{inner}"}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'inner'       Name
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_05b.txt b/tests/snippets/python/test_fstring_05b.txt
new file mode 100644
index 00000000..b0f3ebd8
--- /dev/null
+++ b/tests/snippets/python/test_fstring_05b.txt
@@ -0,0 +1,16 @@
+---input---
+f"{f'{inner}'}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'inner'       Name
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_06a.txt b/tests/snippets/python/test_fstring_06a.txt
new file mode 100644
index 00000000..0ba0809a
--- /dev/null
+++ b/tests/snippets/python/test_fstring_06a.txt
@@ -0,0 +1,16 @@
+# SyntaxError: f-string expression part cannot include a backslash
+
+---input---
+f'{\'quoted string\'}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'\\'          Error
+"'"           Literal.String.Single
+'quoted string' Literal.String.Single
+"\\'"         Literal.String.Escape
+'}'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_06b.txt b/tests/snippets/python/test_fstring_06b.txt
new file mode 100644
index 00000000..f98b3dc2
--- /dev/null
+++ b/tests/snippets/python/test_fstring_06b.txt
@@ -0,0 +1,16 @@
+# SyntaxError: f-string expression part cannot include a backslash
+
+---input---
+f"{\"quoted string\"}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'\\'          Error
+'"'           Literal.String.Double
+'quoted string' Literal.String.Double
+'\\"'         Literal.String.Escape
+'}'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_07a.txt b/tests/snippets/python/test_fstring_07a.txt
new file mode 100644
index 00000000..63942200
--- /dev/null
+++ b/tests/snippets/python/test_fstring_07a.txt
@@ -0,0 +1,17 @@
+---input---
+f'{{ {4*10} }}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{{'          Literal.String.Escape
+' '           Literal.String.Single
+'{'           Literal.String.Interpol
+'4'           Literal.Number.Integer
+'*'           Operator
+'10'          Literal.Number.Integer
+'}'           Literal.String.Interpol
+' '           Literal.String.Single
+'}}'          Literal.String.Escape
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_07b.txt b/tests/snippets/python/test_fstring_07b.txt
new file mode 100644
index 00000000..c7e87bc7
--- /dev/null
+++ b/tests/snippets/python/test_fstring_07b.txt
@@ -0,0 +1,17 @@
+---input---
+f"{{ {4*10} }}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{{'          Literal.String.Escape
+' '           Literal.String.Double
+'{'           Literal.String.Interpol
+'4'           Literal.Number.Integer
+'*'           Operator
+'10'          Literal.Number.Integer
+'}'           Literal.String.Interpol
+' '           Literal.String.Double
+'}}'          Literal.String.Escape
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_08a.txt b/tests/snippets/python/test_fstring_08a.txt
new file mode 100644
index 00000000..61b6cc8f
--- /dev/null
+++ b/tests/snippets/python/test_fstring_08a.txt
@@ -0,0 +1,15 @@
+---input---
+f'{{{4*10}}}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{{'          Literal.String.Escape
+'{'           Literal.String.Interpol
+'4'           Literal.Number.Integer
+'*'           Operator
+'10'          Literal.Number.Integer
+'}'           Literal.String.Interpol
+'}}'          Literal.String.Escape
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_08b.txt b/tests/snippets/python/test_fstring_08b.txt
new file mode 100644
index 00000000..41eb13a4
--- /dev/null
+++ b/tests/snippets/python/test_fstring_08b.txt
@@ -0,0 +1,15 @@
+---input---
+f"{{{4*10}}}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{{'          Literal.String.Escape
+'{'           Literal.String.Interpol
+'4'           Literal.Number.Integer
+'*'           Operator
+'10'          Literal.Number.Integer
+'}'           Literal.String.Interpol
+'}}'          Literal.String.Escape
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_09a.txt b/tests/snippets/python/test_fstring_09a.txt
new file mode 100644
index 00000000..3dcec51e
--- /dev/null
+++ b/tests/snippets/python/test_fstring_09a.txt
@@ -0,0 +1,14 @@
+---input---
+fr'x={4*10}'
+
+---tokens---
+'fr'          Literal.String.Affix
+"'"           Literal.String.Single
+'x='          Literal.String.Single
+'{'           Literal.String.Interpol
+'4'           Literal.Number.Integer
+'*'           Operator
+'10'          Literal.Number.Integer
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_09b.txt b/tests/snippets/python/test_fstring_09b.txt
new file mode 100644
index 00000000..72932b29
--- /dev/null
+++ b/tests/snippets/python/test_fstring_09b.txt
@@ -0,0 +1,14 @@
+---input---
+fr"x={4*10}"
+
+---tokens---
+'fr'          Literal.String.Affix
+'"'           Literal.String.Double
+'x='          Literal.String.Double
+'{'           Literal.String.Interpol
+'4'           Literal.Number.Integer
+'*'           Operator
+'10'          Literal.Number.Integer
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_10a.txt b/tests/snippets/python/test_fstring_10a.txt
new file mode 100644
index 00000000..02fba2b4
--- /dev/null
+++ b/tests/snippets/python/test_fstring_10a.txt
@@ -0,0 +1,18 @@
+---input---
+f'abc {a["x"]} def'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'abc '        Literal.String.Single
+'{'           Literal.String.Interpol
+'a'           Name
+'['           Punctuation
+'"'           Literal.String.Double
+'x'           Literal.String.Double
+'"'           Literal.String.Double
+']'           Punctuation
+'}'           Literal.String.Interpol
+' def'        Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_10b.txt b/tests/snippets/python/test_fstring_10b.txt
new file mode 100644
index 00000000..46150935
--- /dev/null
+++ b/tests/snippets/python/test_fstring_10b.txt
@@ -0,0 +1,18 @@
+---input---
+f"abc {a['x']} def"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'abc '        Literal.String.Double
+'{'           Literal.String.Interpol
+'a'           Name
+'['           Punctuation
+"'"           Literal.String.Single
+'x'           Literal.String.Single
+"'"           Literal.String.Single
+']'           Punctuation
+'}'           Literal.String.Interpol
+' def'        Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_11a.txt b/tests/snippets/python/test_fstring_11a.txt
new file mode 100644
index 00000000..6116c960
--- /dev/null
+++ b/tests/snippets/python/test_fstring_11a.txt
@@ -0,0 +1,18 @@
+---input---
+f'''abc {a['x']} def'''
+
+---tokens---
+'f'           Literal.String.Affix
+"'''"         Literal.String.Single
+'abc '        Literal.String.Single
+'{'           Literal.String.Interpol
+'a'           Name
+'['           Punctuation
+"'"           Literal.String.Single
+'x'           Literal.String.Single
+"'"           Literal.String.Single
+']'           Punctuation
+'}'           Literal.String.Interpol
+' def'        Literal.String.Single
+"'''"         Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_11b.txt b/tests/snippets/python/test_fstring_11b.txt
new file mode 100644
index 00000000..77c3d6f8
--- /dev/null
+++ b/tests/snippets/python/test_fstring_11b.txt
@@ -0,0 +1,18 @@
+---input---
+f"""abc {a["x"]} def"""
+
+---tokens---
+'f'           Literal.String.Affix
+'"""'         Literal.String.Double
+'abc '        Literal.String.Double
+'{'           Literal.String.Interpol
+'a'           Name
+'['           Punctuation
+'"'           Literal.String.Double
+'x'           Literal.String.Double
+'"'           Literal.String.Double
+']'           Punctuation
+'}'           Literal.String.Interpol
+' def'        Literal.String.Double
+'"""'         Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_12a.txt b/tests/snippets/python/test_fstring_12a.txt
new file mode 100644
index 00000000..cc8eeab4
--- /dev/null
+++ b/tests/snippets/python/test_fstring_12a.txt
@@ -0,0 +1,16 @@
+---input---
+f'''{x
++1}'''
+
+---tokens---
+'f'           Literal.String.Affix
+"'''"         Literal.String.Single
+'{'           Literal.String.Interpol
+'x'           Name
+'\n'          Text
+
+'+'           Operator
+'1'           Literal.Number.Integer
+'}'           Literal.String.Interpol
+"'''"         Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_12b.txt b/tests/snippets/python/test_fstring_12b.txt
new file mode 100644
index 00000000..160b2d91
--- /dev/null
+++ b/tests/snippets/python/test_fstring_12b.txt
@@ -0,0 +1,16 @@
+---input---
+f"""{x
++1}"""
+
+---tokens---
+'f'           Literal.String.Affix
+'"""'         Literal.String.Double
+'{'           Literal.String.Interpol
+'x'           Name
+'\n'          Text
+
+'+'           Operator
+'1'           Literal.Number.Integer
+'}'           Literal.String.Interpol
+'"""'         Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_13a.txt b/tests/snippets/python/test_fstring_13a.txt
new file mode 100644
index 00000000..b556a5b6
--- /dev/null
+++ b/tests/snippets/python/test_fstring_13a.txt
@@ -0,0 +1,17 @@
+---input---
+f'''{d[0
+]}'''
+
+---tokens---
+'f'           Literal.String.Affix
+"'''"         Literal.String.Single
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+'0'           Literal.Number.Integer
+'\n'          Text
+
+']'           Punctuation
+'}'           Literal.String.Interpol
+"'''"         Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_13b.txt b/tests/snippets/python/test_fstring_13b.txt
new file mode 100644
index 00000000..1e9fd60d
--- /dev/null
+++ b/tests/snippets/python/test_fstring_13b.txt
@@ -0,0 +1,17 @@
+---input---
+f"""{d[0
+]}"""
+
+---tokens---
+'f'           Literal.String.Affix
+'"""'         Literal.String.Double
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+'0'           Literal.Number.Integer
+'\n'          Text
+
+']'           Punctuation
+'}'           Literal.String.Interpol
+'"""'         Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_14a.txt b/tests/snippets/python/test_fstring_14a.txt
new file mode 100644
index 00000000..de202a21
--- /dev/null
+++ b/tests/snippets/python/test_fstring_14a.txt
@@ -0,0 +1,20 @@
+---input---
+f'result: {value:{width}.{precision}}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'result: '    Literal.String.Single
+'{'           Literal.String.Interpol
+'value'       Name
+':'           Literal.String.Interpol
+'{'           Literal.String.Interpol
+'width'       Name
+'}'           Literal.String.Interpol
+'.'           Literal.String.Single
+'{'           Literal.String.Interpol
+'precision'   Name
+'}'           Literal.String.Interpol
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_14b.txt b/tests/snippets/python/test_fstring_14b.txt
new file mode 100644
index 00000000..83aaad5e
--- /dev/null
+++ b/tests/snippets/python/test_fstring_14b.txt
@@ -0,0 +1,20 @@
+---input---
+f"result: {value:{width}.{precision}}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'result: '    Literal.String.Double
+'{'           Literal.String.Interpol
+'value'       Name
+':'           Literal.String.Interpol
+'{'           Literal.String.Interpol
+'width'       Name
+'}'           Literal.String.Interpol
+'.'           Literal.String.Double
+'{'           Literal.String.Interpol
+'precision'   Name
+'}'           Literal.String.Interpol
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_15a.txt b/tests/snippets/python/test_fstring_15a.txt
new file mode 100644
index 00000000..635e8791
--- /dev/null
+++ b/tests/snippets/python/test_fstring_15a.txt
@@ -0,0 +1,42 @@
+---input---
+'a' 'b' f'{x}' '{c}' f'str<{y:^4}>' 'd' 'e'
+
+---tokens---
+"'"           Literal.String.Single
+'a'           Literal.String.Single
+"'"           Literal.String.Single
+' '           Text
+"'"           Literal.String.Single
+'b'           Literal.String.Single
+"'"           Literal.String.Single
+' '           Text
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'x'           Name
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+' '           Text
+"'"           Literal.String.Single
+'{c}'         Literal.String.Interpol
+"'"           Literal.String.Single
+' '           Text
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'str<'        Literal.String.Single
+'{'           Literal.String.Interpol
+'y'           Name
+':'           Literal.String.Interpol
+'^4'          Literal.String.Single
+'}'           Literal.String.Interpol
+'>'           Literal.String.Single
+"'"           Literal.String.Single
+' '           Text
+"'"           Literal.String.Single
+'d'           Literal.String.Single
+"'"           Literal.String.Single
+' '           Text
+"'"           Literal.String.Single
+'e'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_15b.txt b/tests/snippets/python/test_fstring_15b.txt
new file mode 100644
index 00000000..1a1ab251
--- /dev/null
+++ b/tests/snippets/python/test_fstring_15b.txt
@@ -0,0 +1,42 @@
+---input---
+"a" "b" f"{x}" "{c}" f"str<{y:^4}>" "d" "e"
+
+---tokens---
+'"'           Literal.String.Double
+'a'           Literal.String.Double
+'"'           Literal.String.Double
+' '           Text
+'"'           Literal.String.Double
+'b'           Literal.String.Double
+'"'           Literal.String.Double
+' '           Text
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'x'           Name
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+' '           Text
+'"'           Literal.String.Double
+'{c}'         Literal.String.Interpol
+'"'           Literal.String.Double
+' '           Text
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'str<'        Literal.String.Double
+'{'           Literal.String.Interpol
+'y'           Name
+':'           Literal.String.Interpol
+'^4'          Literal.String.Double
+'}'           Literal.String.Interpol
+'>'           Literal.String.Double
+'"'           Literal.String.Double
+' '           Text
+'"'           Literal.String.Double
+'d'           Literal.String.Double
+'"'           Literal.String.Double
+' '           Text
+'"'           Literal.String.Double
+'e'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_16a.txt b/tests/snippets/python/test_fstring_16a.txt
new file mode 100644
index 00000000..cbd4d14b
--- /dev/null
+++ b/tests/snippets/python/test_fstring_16a.txt
@@ -0,0 +1,18 @@
+---input---
+f'{i}:{d[i]}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'i'           Name
+'}'           Literal.String.Interpol
+':'           Literal.String.Single
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+'i'           Name
+']'           Punctuation
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_16b.txt b/tests/snippets/python/test_fstring_16b.txt
new file mode 100644
index 00000000..8ce173f0
--- /dev/null
+++ b/tests/snippets/python/test_fstring_16b.txt
@@ -0,0 +1,18 @@
+---input---
+f"{i}:{d[i]}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'i'           Name
+'}'           Literal.String.Interpol
+':'           Literal.String.Double
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+'i'           Name
+']'           Punctuation
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_17a.txt b/tests/snippets/python/test_fstring_17a.txt
new file mode 100644
index 00000000..a1b5b3a5
--- /dev/null
+++ b/tests/snippets/python/test_fstring_17a.txt
@@ -0,0 +1,14 @@
+---input---
+f'x = {x:+3}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'x = '        Literal.String.Single
+'{'           Literal.String.Interpol
+'x'           Name
+':'           Literal.String.Interpol
+'+3'          Literal.String.Single
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_17b.txt b/tests/snippets/python/test_fstring_17b.txt
new file mode 100644
index 00000000..5f34b174
--- /dev/null
+++ b/tests/snippets/python/test_fstring_17b.txt
@@ -0,0 +1,14 @@
+---input---
+f"x = {x:+3}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'x = '        Literal.String.Double
+'{'           Literal.String.Interpol
+'x'           Name
+':'           Literal.String.Interpol
+'+3'          Literal.String.Double
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_18a.txt b/tests/snippets/python/test_fstring_18a.txt
new file mode 100644
index 00000000..60d05123
--- /dev/null
+++ b/tests/snippets/python/test_fstring_18a.txt
@@ -0,0 +1,25 @@
+---input---
+f'{fn(lst,2)} {fn(lst,3)}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'fn'          Name
+'('           Punctuation
+'lst'         Name
+','           Punctuation
+'2'           Literal.Number.Integer
+')'           Punctuation
+'}'           Literal.String.Interpol
+' '           Literal.String.Single
+'{'           Literal.String.Interpol
+'fn'          Name
+'('           Punctuation
+'lst'         Name
+','           Punctuation
+'3'           Literal.Number.Integer
+')'           Punctuation
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_18b.txt b/tests/snippets/python/test_fstring_18b.txt
new file mode 100644
index 00000000..a189d00a
--- /dev/null
+++ b/tests/snippets/python/test_fstring_18b.txt
@@ -0,0 +1,25 @@
+---input---
+f"{fn(lst,2)} {fn(lst,3)}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'fn'          Name
+'('           Punctuation
+'lst'         Name
+','           Punctuation
+'2'           Literal.Number.Integer
+')'           Punctuation
+'}'           Literal.String.Interpol
+' '           Literal.String.Double
+'{'           Literal.String.Interpol
+'fn'          Name
+'('           Punctuation
+'lst'         Name
+','           Punctuation
+'3'           Literal.Number.Integer
+')'           Punctuation
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_19a.txt b/tests/snippets/python/test_fstring_19a.txt
new file mode 100644
index 00000000..6e412a38
--- /dev/null
+++ b/tests/snippets/python/test_fstring_19a.txt
@@ -0,0 +1,46 @@
+---input---
+f'mapping is { {a:b for (a, b) in ((1, 2), (3, 4))} }'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'mapping is ' Literal.String.Single
+'{'           Literal.String.Interpol
+' '           Text
+'{'           Punctuation
+'a'           Name
+':'           Punctuation
+'b'           Name
+' '           Text
+'for'         Keyword
+' '           Text
+'('           Punctuation
+'a'           Name
+','           Punctuation
+' '           Text
+'b'           Name
+')'           Punctuation
+' '           Text
+'in'          Operator.Word
+' '           Text
+'('           Punctuation
+'('           Punctuation
+'1'           Literal.Number.Integer
+','           Punctuation
+' '           Text
+'2'           Literal.Number.Integer
+')'           Punctuation
+','           Punctuation
+' '           Text
+'('           Punctuation
+'3'           Literal.Number.Integer
+','           Punctuation
+' '           Text
+'4'           Literal.Number.Integer
+')'           Punctuation
+')'           Punctuation
+'}'           Punctuation
+' '           Text
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_19b.txt b/tests/snippets/python/test_fstring_19b.txt
new file mode 100644
index 00000000..5c9d6f73
--- /dev/null
+++ b/tests/snippets/python/test_fstring_19b.txt
@@ -0,0 +1,46 @@
+---input---
+f"mapping is { {a:b for (a, b) in ((1, 2), (3, 4))} }"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'mapping is ' Literal.String.Double
+'{'           Literal.String.Interpol
+' '           Text
+'{'           Punctuation
+'a'           Name
+':'           Punctuation
+'b'           Name
+' '           Text
+'for'         Keyword
+' '           Text
+'('           Punctuation
+'a'           Name
+','           Punctuation
+' '           Text
+'b'           Name
+')'           Punctuation
+' '           Text
+'in'          Operator.Word
+' '           Text
+'('           Punctuation
+'('           Punctuation
+'1'           Literal.Number.Integer
+','           Punctuation
+' '           Text
+'2'           Literal.Number.Integer
+')'           Punctuation
+','           Punctuation
+' '           Text
+'('           Punctuation
+'3'           Literal.Number.Integer
+','           Punctuation
+' '           Text
+'4'           Literal.Number.Integer
+')'           Punctuation
+')'           Punctuation
+'}'           Punctuation
+' '           Text
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_20a.txt b/tests/snippets/python/test_fstring_20a.txt
new file mode 100644
index 00000000..a72a7a44
--- /dev/null
+++ b/tests/snippets/python/test_fstring_20a.txt
@@ -0,0 +1,17 @@
+---input---
+f'a={d["a"]}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'a='          Literal.String.Single
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+'"'           Literal.String.Double
+'a'           Literal.String.Double
+'"'           Literal.String.Double
+']'           Punctuation
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_20b.txt b/tests/snippets/python/test_fstring_20b.txt
new file mode 100644
index 00000000..556f7de8
--- /dev/null
+++ b/tests/snippets/python/test_fstring_20b.txt
@@ -0,0 +1,17 @@
+---input---
+f"a={d['a']}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'a='          Literal.String.Double
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+"'"           Literal.String.Single
+'a'           Literal.String.Single
+"'"           Literal.String.Single
+']'           Punctuation
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_21a.txt b/tests/snippets/python/test_fstring_21a.txt
new file mode 100644
index 00000000..1a591003
--- /dev/null
+++ b/tests/snippets/python/test_fstring_21a.txt
@@ -0,0 +1,15 @@
+---input---
+f'a={d[a]}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'a='          Literal.String.Single
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+'a'           Name
+']'           Punctuation
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_21b.txt b/tests/snippets/python/test_fstring_21b.txt
new file mode 100644
index 00000000..7e3ed08a
--- /dev/null
+++ b/tests/snippets/python/test_fstring_21b.txt
@@ -0,0 +1,15 @@
+---input---
+f"a={d[a]}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'a='          Literal.String.Double
+'{'           Literal.String.Interpol
+'d'           Name
+'['           Punctuation
+'a'           Name
+']'           Punctuation
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_22a.txt b/tests/snippets/python/test_fstring_22a.txt
new file mode 100644
index 00000000..6a3b792f
--- /dev/null
+++ b/tests/snippets/python/test_fstring_22a.txt
@@ -0,0 +1,14 @@
+---input---
+fr'{header}:\s+'
+
+---tokens---
+'fr'          Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'header'      Name
+'}'           Literal.String.Interpol
+':'           Literal.String.Single
+'\\'          Literal.String.Single
+'s+'          Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_22b.txt b/tests/snippets/python/test_fstring_22b.txt
new file mode 100644
index 00000000..75a08aac
--- /dev/null
+++ b/tests/snippets/python/test_fstring_22b.txt
@@ -0,0 +1,14 @@
+---input---
+fr"{header}:\s+"
+
+---tokens---
+'fr'          Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'header'      Name
+'}'           Literal.String.Interpol
+':'           Literal.String.Double
+'\\'          Literal.String.Double
+'s+'          Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_23a.txt b/tests/snippets/python/test_fstring_23a.txt
new file mode 100644
index 00000000..ae944ed2
--- /dev/null
+++ b/tests/snippets/python/test_fstring_23a.txt
@@ -0,0 +1,11 @@
+---input---
+f'{a!r}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'a'           Name
+'!r}'         Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_23b.txt b/tests/snippets/python/test_fstring_23b.txt
new file mode 100644
index 00000000..8038c8b4
--- /dev/null
+++ b/tests/snippets/python/test_fstring_23b.txt
@@ -0,0 +1,11 @@
+---input---
+f"{a!r}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'a'           Name
+'!r}'         Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_24a.txt b/tests/snippets/python/test_fstring_24a.txt
new file mode 100644
index 00000000..9dd1e94e
--- /dev/null
+++ b/tests/snippets/python/test_fstring_24a.txt
@@ -0,0 +1,23 @@
+---input---
+f'{(lambda x: x*2)(3)}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'('           Punctuation
+'lambda'      Keyword
+' '           Text
+'x'           Name
+':'           Punctuation
+' '           Text
+'x'           Name
+'*'           Operator
+'2'           Literal.Number.Integer
+')'           Punctuation
+'('           Punctuation
+'3'           Literal.Number.Integer
+')'           Punctuation
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_24b.txt b/tests/snippets/python/test_fstring_24b.txt
new file mode 100644
index 00000000..0ef51a52
--- /dev/null
+++ b/tests/snippets/python/test_fstring_24b.txt
@@ -0,0 +1,23 @@
+---input---
+f"{(lambda x: x*2)(3)}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'('           Punctuation
+'lambda'      Keyword
+' '           Text
+'x'           Name
+':'           Punctuation
+' '           Text
+'x'           Name
+'*'           Operator
+'2'           Literal.Number.Integer
+')'           Punctuation
+'('           Punctuation
+'3'           Literal.Number.Integer
+')'           Punctuation
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_25a.txt b/tests/snippets/python/test_fstring_25a.txt
new file mode 100644
index 00000000..e42453e5
--- /dev/null
+++ b/tests/snippets/python/test_fstring_25a.txt
@@ -0,0 +1,24 @@
+---input---
+extra = f'{extra},waiters:{len(self._waiters)}'
+
+---tokens---
+'extra'       Name
+' '           Text
+'='           Operator
+' '           Text
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'extra'       Name
+'}'           Literal.String.Interpol
+',waiters:'   Literal.String.Single
+'{'           Literal.String.Interpol
+'len'         Name.Builtin
+'('           Punctuation
+'self'        Name.Builtin.Pseudo
+'.'           Operator
+'_waiters'    Name
+')'           Punctuation
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_25b.txt b/tests/snippets/python/test_fstring_25b.txt
new file mode 100644
index 00000000..2ba4b721
--- /dev/null
+++ b/tests/snippets/python/test_fstring_25b.txt
@@ -0,0 +1,24 @@
+---input---
+extra = f"{extra},waiters:{len(self._waiters)}"
+
+---tokens---
+'extra'       Name
+' '           Text
+'='           Operator
+' '           Text
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'extra'       Name
+'}'           Literal.String.Interpol
+',waiters:'   Literal.String.Double
+'{'           Literal.String.Interpol
+'len'         Name.Builtin
+'('           Punctuation
+'self'        Name.Builtin.Pseudo
+'.'           Operator
+'_waiters'    Name
+')'           Punctuation
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_26a.txt b/tests/snippets/python/test_fstring_26a.txt
new file mode 100644
index 00000000..c644d447
--- /dev/null
+++ b/tests/snippets/python/test_fstring_26a.txt
@@ -0,0 +1,20 @@
+---input---
+message.append(f" [line {lineno:2d}]")
+
+---tokens---
+'message'     Name
+'.'           Operator
+'append'      Name
+'('           Punctuation
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+' [line '     Literal.String.Double
+'{'           Literal.String.Interpol
+'lineno'      Name
+':'           Literal.String.Interpol
+'2d'          Literal.String.Double
+'}'           Literal.String.Interpol
+']'           Literal.String.Double
+'"'           Literal.String.Double
+')'           Punctuation
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_26b.txt b/tests/snippets/python/test_fstring_26b.txt
new file mode 100644
index 00000000..73964104
--- /dev/null
+++ b/tests/snippets/python/test_fstring_26b.txt
@@ -0,0 +1,20 @@
+---input---
+message.append(f' [line {lineno:2d}]')
+
+---tokens---
+'message'     Name
+'.'           Operator
+'append'      Name
+'('           Punctuation
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+' [line '     Literal.String.Single
+'{'           Literal.String.Interpol
+'lineno'      Name
+':'           Literal.String.Interpol
+'2d'          Literal.String.Single
+'}'           Literal.String.Interpol
+']'           Literal.String.Single
+"'"           Literal.String.Single
+')'           Punctuation
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_27a.txt b/tests/snippets/python/test_fstring_27a.txt
new file mode 100644
index 00000000..cd8bdbe2
--- /dev/null
+++ b/tests/snippets/python/test_fstring_27a.txt
@@ -0,0 +1,11 @@
+---input---
+f"{foo=}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'foo'         Name
+'=}'          Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_27b.txt b/tests/snippets/python/test_fstring_27b.txt
new file mode 100644
index 00000000..7773ab30
--- /dev/null
+++ b/tests/snippets/python/test_fstring_27b.txt
@@ -0,0 +1,11 @@
+---input---
+f'{foo=}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'foo'         Name
+'=}'          Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_28a.txt b/tests/snippets/python/test_fstring_28a.txt
new file mode 100644
index 00000000..6aca3216
--- /dev/null
+++ b/tests/snippets/python/test_fstring_28a.txt
@@ -0,0 +1,11 @@
+---input---
+f'{foo=!s}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'foo'         Name
+'=!s}'        Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_28b.txt b/tests/snippets/python/test_fstring_28b.txt
new file mode 100644
index 00000000..14183eba
--- /dev/null
+++ b/tests/snippets/python/test_fstring_28b.txt
@@ -0,0 +1,11 @@
+---input---
+f"{foo=!s}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'foo'         Name
+'=!s}'        Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_29a.txt b/tests/snippets/python/test_fstring_29a.txt
new file mode 100644
index 00000000..81715064
--- /dev/null
+++ b/tests/snippets/python/test_fstring_29a.txt
@@ -0,0 +1,15 @@
+---input---
+f"{math.pi=!f:.2f}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'math'        Name
+'.'           Operator
+'pi'          Name
+'=!f:'        Literal.String.Interpol
+'.2f'         Literal.String.Double
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_29b.txt b/tests/snippets/python/test_fstring_29b.txt
new file mode 100644
index 00000000..de5b5083
--- /dev/null
+++ b/tests/snippets/python/test_fstring_29b.txt
@@ -0,0 +1,15 @@
+---input---
+f'{math.pi=!f:.2f}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'math'        Name
+'.'           Operator
+'pi'          Name
+'=!f:'        Literal.String.Interpol
+'.2f'         Literal.String.Single
+'}'           Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_30a.txt b/tests/snippets/python/test_fstring_30a.txt
new file mode 100644
index 00000000..f295cfe4
--- /dev/null
+++ b/tests/snippets/python/test_fstring_30a.txt
@@ -0,0 +1,16 @@
+---input---
+f"{ chr(65) =}"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+' '           Text
+'chr'         Name.Builtin
+'('           Punctuation
+'65'          Literal.Number.Integer
+')'           Punctuation
+' '           Text
+'=}'          Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_30b.txt b/tests/snippets/python/test_fstring_30b.txt
new file mode 100644
index 00000000..10a2af8e
--- /dev/null
+++ b/tests/snippets/python/test_fstring_30b.txt
@@ -0,0 +1,16 @@
+---input---
+f'{ chr(65) =}'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+' '           Text
+'chr'         Name.Builtin
+'('           Punctuation
+'65'          Literal.Number.Integer
+')'           Punctuation
+' '           Text
+'=}'          Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_31a.txt b/tests/snippets/python/test_fstring_31a.txt
new file mode 100644
index 00000000..eac01679
--- /dev/null
+++ b/tests/snippets/python/test_fstring_31a.txt
@@ -0,0 +1,15 @@
+---input---
+f"{chr(65) = }"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'chr'         Name.Builtin
+'('           Punctuation
+'65'          Literal.Number.Integer
+')'           Punctuation
+' '           Text
+'= }'         Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_31b.txt b/tests/snippets/python/test_fstring_31b.txt
new file mode 100644
index 00000000..40702daa
--- /dev/null
+++ b/tests/snippets/python/test_fstring_31b.txt
@@ -0,0 +1,15 @@
+---input---
+f'{chr(65) = }'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'chr'         Name.Builtin
+'('           Punctuation
+'65'          Literal.Number.Integer
+')'           Punctuation
+' '           Text
+'= }'         Literal.String.Interpol
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_32a.txt b/tests/snippets/python/test_fstring_32a.txt
new file mode 100644
index 00000000..666134c6
--- /dev/null
+++ b/tests/snippets/python/test_fstring_32a.txt
@@ -0,0 +1,15 @@
+---input---
+f'*{n=:30}*'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'*'           Literal.String.Single
+'{'           Literal.String.Interpol
+'n'           Name
+'=:'          Literal.String.Interpol
+'30'          Literal.String.Single
+'}'           Literal.String.Interpol
+'*'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_32b.txt b/tests/snippets/python/test_fstring_32b.txt
new file mode 100644
index 00000000..9e087252
--- /dev/null
+++ b/tests/snippets/python/test_fstring_32b.txt
@@ -0,0 +1,15 @@
+---input---
+f"*{n=:30}*"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'*'           Literal.String.Double
+'{'           Literal.String.Interpol
+'n'           Name
+'=:'          Literal.String.Interpol
+'30'          Literal.String.Double
+'}'           Literal.String.Interpol
+'*'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_33a.txt b/tests/snippets/python/test_fstring_33a.txt
new file mode 100644
index 00000000..232491b2
--- /dev/null
+++ b/tests/snippets/python/test_fstring_33a.txt
@@ -0,0 +1,15 @@
+---input---
+f'*{n=!r:30}*'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'*'           Literal.String.Single
+'{'           Literal.String.Interpol
+'n'           Name
+'=!r:'        Literal.String.Interpol
+'30'          Literal.String.Single
+'}'           Literal.String.Interpol
+'*'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_33b.txt b/tests/snippets/python/test_fstring_33b.txt
new file mode 100644
index 00000000..1481e811
--- /dev/null
+++ b/tests/snippets/python/test_fstring_33b.txt
@@ -0,0 +1,15 @@
+---input---
+f"*{n=!r:30}*"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'*'           Literal.String.Double
+'{'           Literal.String.Interpol
+'n'           Name
+'=!r:'        Literal.String.Interpol
+'30'          Literal.String.Double
+'}'           Literal.String.Interpol
+'*'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_34a.txt b/tests/snippets/python/test_fstring_34a.txt
new file mode 100644
index 00000000..6bd510a9
--- /dev/null
+++ b/tests/snippets/python/test_fstring_34a.txt
@@ -0,0 +1,20 @@
+---input---
+f"*{f'{n=}':30}*"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'*'           Literal.String.Double
+'{'           Literal.String.Interpol
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'{'           Literal.String.Interpol
+'n'           Name
+'=}'          Literal.String.Interpol
+"'"           Literal.String.Single
+':'           Literal.String.Interpol
+'30'          Literal.String.Double
+'}'           Literal.String.Interpol
+'*'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_34b.txt b/tests/snippets/python/test_fstring_34b.txt
new file mode 100644
index 00000000..4cb7e631
--- /dev/null
+++ b/tests/snippets/python/test_fstring_34b.txt
@@ -0,0 +1,20 @@
+---input---
+f'*{f"{n=}":30}*'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'*'           Literal.String.Single
+'{'           Literal.String.Interpol
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'{'           Literal.String.Interpol
+'n'           Name
+'=}'          Literal.String.Interpol
+'"'           Literal.String.Double
+':'           Literal.String.Interpol
+'30'          Literal.String.Single
+'}'           Literal.String.Interpol
+'*'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_35a.txt b/tests/snippets/python/test_fstring_35a.txt
new file mode 100644
index 00000000..f09edc18
--- /dev/null
+++ b/tests/snippets/python/test_fstring_35a.txt
@@ -0,0 +1,15 @@
+---input---
+f'*{n=:+<30}*'
+
+---tokens---
+'f'           Literal.String.Affix
+"'"           Literal.String.Single
+'*'           Literal.String.Single
+'{'           Literal.String.Interpol
+'n'           Name
+'=:'          Literal.String.Interpol
+'+<30'        Literal.String.Single
+'}'           Literal.String.Interpol
+'*'           Literal.String.Single
+"'"           Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_35b.txt b/tests/snippets/python/test_fstring_35b.txt
new file mode 100644
index 00000000..794f7b69
--- /dev/null
+++ b/tests/snippets/python/test_fstring_35b.txt
@@ -0,0 +1,15 @@
+---input---
+f"*{n=:+<30}*"
+
+---tokens---
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'*'           Literal.String.Double
+'{'           Literal.String.Interpol
+'n'           Name
+'=:'          Literal.String.Interpol
+'+<30'        Literal.String.Double
+'}'           Literal.String.Interpol
+'*'           Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_36a.txt b/tests/snippets/python/test_fstring_36a.txt
new file mode 100644
index 00000000..4b6ab230
--- /dev/null
+++ b/tests/snippets/python/test_fstring_36a.txt
@@ -0,0 +1,16 @@
+---input---
+
+f'''{foo
+      = !s:20}'''
+
+---tokens---
+'f'           Literal.String.Affix
+"'''"         Literal.String.Single
+'{'           Literal.String.Interpol
+'foo'         Name
+'\n      '    Text
+'= !s:'       Literal.String.Interpol
+'20'          Literal.String.Single
+'}'           Literal.String.Interpol
+"'''"         Literal.String.Single
+'\n'          Text
diff --git a/tests/snippets/python/test_fstring_36b.txt b/tests/snippets/python/test_fstring_36b.txt
new file mode 100644
index 00000000..abc9cf3e
--- /dev/null
+++ b/tests/snippets/python/test_fstring_36b.txt
@@ -0,0 +1,16 @@
+---input---
+
+f"""{foo
+      = !s:20}"""
+
+---tokens---
+'f'           Literal.String.Affix
+'"""'         Literal.String.Double
+'{'           Literal.String.Interpol
+'foo'         Name
+'\n      '    Text
+'= !s:'       Literal.String.Interpol
+'20'          Literal.String.Double
+'}'           Literal.String.Interpol
+'"""'         Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_needs_name.txt b/tests/snippets/python/test_needs_name.txt
new file mode 100644
index 00000000..60c782c5
--- /dev/null
+++ b/tests/snippets/python/test_needs_name.txt
@@ -0,0 +1,55 @@
+# Tests that '@' is recognized as an Operator
+
+---input---
+S = (H @ beta - r).T @ inv(H @ V @ H.T) @ (H @ beta - r)
+
+---tokens---
+'S'           Name
+' '           Text
+'='           Operator
+' '           Text
+'('           Punctuation
+'H'           Name
+' '           Text
+'@'           Operator
+' '           Text
+'beta'        Name
+' '           Text
+'-'           Operator
+' '           Text
+'r'           Name
+')'           Punctuation
+'.'           Operator
+'T'           Name
+' '           Text
+'@'           Operator
+' '           Text
+'inv'         Name
+'('           Punctuation
+'H'           Name
+' '           Text
+'@'           Operator
+' '           Text
+'V'           Name
+' '           Text
+'@'           Operator
+' '           Text
+'H'           Name
+'.'           Operator
+'T'           Name
+')'           Punctuation
+' '           Text
+'@'           Operator
+' '           Text
+'('           Punctuation
+'H'           Name
+' '           Text
+'@'           Operator
+' '           Text
+'beta'        Name
+' '           Text
+'-'           Operator
+' '           Text
+'r'           Name
+')'           Punctuation
+'\n'          Text
diff --git a/tests/snippets/python/test_pep_515.txt b/tests/snippets/python/test_pep_515.txt
new file mode 100644
index 00000000..a5f2f358
--- /dev/null
+++ b/tests/snippets/python/test_pep_515.txt
@@ -0,0 +1,28 @@
+# Tests that the lexer can parse numeric literals with underscores
+
+---input---
+1_000_000
+1_000.000_001
+1_000e1_000j
+0xCAFE_F00D
+0b_0011_1111_0100_1110
+0o_777_123
+
+---tokens---
+'1_000_000'   Literal.Number.Integer
+'\n'          Text
+
+'1_000.000_001' Literal.Number.Float
+'\n'          Text
+
+'1_000e1_000j' Literal.Number.Float
+'\n'          Text
+
+'0xCAFE_F00D' Literal.Number.Hex
+'\n'          Text
+
+'0b_0011_1111_0100_1110' Literal.Number.Bin
+'\n'          Text
+
+'0o_777_123'  Literal.Number.Oct
+'\n'          Text
diff --git a/tests/snippets/python/test_raw_fstring.txt b/tests/snippets/python/test_raw_fstring.txt
new file mode 100644
index 00000000..0dd51c1e
--- /dev/null
+++ b/tests/snippets/python/test_raw_fstring.txt
@@ -0,0 +1,46 @@
+# Tests that the lexer can parse raw f-strings
+
+---input---
+rf"m_\nu = x"
+
+f"m_\nu = {x}"
+
+rf"m_{{\nu}} = {x}"
+
+---tokens---
+'rf'          Literal.String.Affix
+'"'           Literal.String.Double
+'m_'          Literal.String.Double
+'\\'          Literal.String.Double
+'nu = x'      Literal.String.Double
+'"'           Literal.String.Double
+'\n'          Text
+
+'\n'          Text
+
+'f'           Literal.String.Affix
+'"'           Literal.String.Double
+'m_'          Literal.String.Double
+'\\n'         Literal.String.Escape
+'u = '        Literal.String.Double
+'{'           Literal.String.Interpol
+'x'           Name
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
+
+'\n'          Text
+
+'rf'          Literal.String.Affix
+'"'           Literal.String.Double
+'m_'          Literal.String.Double
+'{{'          Literal.String.Escape
+'\\'          Literal.String.Double
+'nu'          Literal.String.Double
+'}}'          Literal.String.Escape
+' = '         Literal.String.Double
+'{'           Literal.String.Interpol
+'x'           Name
+'}'           Literal.String.Interpol
+'"'           Literal.String.Double
+'\n'          Text
diff --git a/tests/snippets/python/test_walrus_operator.txt b/tests/snippets/python/test_walrus_operator.txt
new file mode 100644
index 00000000..05935ec9
--- /dev/null
+++ b/tests/snippets/python/test_walrus_operator.txt
@@ -0,0 +1,21 @@
+# Tests that ':=' is recognized as an Operator
+
+---input---
+if (a := 2) > 4:
+
+---tokens---
+'if'          Keyword
+' '           Text
+'('           Punctuation
+'a'           Name
+' '           Text
+':='          Operator
+' '           Text
+'2'           Literal.Number.Integer
+')'           Punctuation
+' '           Text
+'>'           Operator
+' '           Text
+'4'           Literal.Number.Integer
+':'           Punctuation
+'\n'          Text