make compile_templates deterministic

Python3 doesn't keep insertion order for set(), so this sorts some
places for deterministic output for compiled template.

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/test_compile.py b/tests/test_compile.py
new file mode 100644
index 0000000..42a773f
--- /dev/null
+++ b/tests/test_compile.py
@@ -0,0 +1,28 @@
+import os
+import re
+
+from jinja2.environment import Environment
+from jinja2.loaders import DictLoader
+
+
+def test_filters_deterministic(tmp_path):
+    src = "".join(f"{{{{ {i}|filter{i} }}}}" for i in range(10))
+    env = Environment(loader=DictLoader({"foo": src}))
+    env.filters.update(dict.fromkeys((f"filter{i}" for i in range(10)), lambda: None))
+    env.compile_templates(tmp_path, zip=None)
+    name = os.listdir(tmp_path)[0]
+    content = (tmp_path / name).read_text("utf8")
+    expect = [f"filters['filter{i}']" for i in range(10)]
+    found = re.findall(r"filters\['filter\d']", content)
+    assert found == expect
+
+
+def test_import_as_with_context_deterministic(tmp_path):
+    src = "\n".join(f'{{% import "bar" as bar{i} with context %}}' for i in range(10))
+    env = Environment(loader=DictLoader({"foo": src}))
+    env.compile_templates(tmp_path, zip=None)
+    name = os.listdir(tmp_path)[0]
+    content = (tmp_path / name).read_text("utf8")
+    expect = [f"'bar{i}': " for i in range(10)]
+    found = re.findall(r"'bar\d': ", content)[:10]
+    assert found == expect