refactor: no need for specialized assert_starts_with method

4 files changed, 2 insertions, 18 deletions

diff --git a/tests/coveragetest.py b/tests/coveragetest.py
index 906886f2..0bfc7123 100644
--- a/tests/coveragetest.py
+++ b/tests/coveragetest.py
@@ -302,11 +302,6 @@ class CoverageTest(
         msg = msg.format(count, pattern, files)
         assert len(files) == count, msg
 
-    def assert_starts_with(self, s, prefix, msg=None):
-        """Assert that `s` starts with `prefix`."""
-        if not s.startswith(prefix):
-            self.fail(msg or ("%r doesn't start with %r" % (s, prefix)))
-
     def assert_recent_datetime(self, dt, seconds=10, msg=None):
         """Assert that `dt` marks a time at most `seconds` seconds ago."""
         age = datetime.datetime.now() - dt
diff --git a/tests/test_process.py b/tests/test_process.py
index 9f07b9cc..548f3dd7 100644
--- a/tests/test_process.py
+++ b/tests/test_process.py
@@ -1208,7 +1208,7 @@ class PydocTest(CoverageTest):
         # Run pydoc.
         out = self.run_command("python -m pydoc " + name)
         # It should say "Help on..", and not have a traceback
-        self.assert_starts_with(out, "Help on ")
+        assert out.startswith("Help on ")
         assert "Traceback" not in out
 
         # All of the lines in the docstring should be there somewhere.
diff --git a/tests/test_setup.py b/tests/test_setup.py
index febc383e..30456191 100644
--- a/tests/test_setup.py
+++ b/tests/test_setup.py
@@ -39,7 +39,7 @@ class SetupPyTest(CoverageTest):
 
         classifiers = setup_args['classifiers']
         assert len(classifiers) > 7
-        self.assert_starts_with(classifiers[-1], "Development Status ::")
+        assert classifiers[-1].startswith("Development Status ::")
         assert "Programming Language :: Python :: %d" % sys.version_info[:1] in classifiers
         assert "Programming Language :: Python :: %d.%d" % sys.version_info[:2] in classifiers
 
diff --git a/tests/test_testing.py b/tests/test_testing.py
index f5d9f942..1e30fa2f 100644
--- a/tests/test_testing.py
+++ b/tests/test_testing.py
@@ -86,17 +86,6 @@ class CoverageTestTest(CoverageTest):
         with pytest.raises(AssertionError, match=msg):
             self.assert_file_count("*.q", 10)
 
-    def test_assert_startwith(self):
-        self.assert_starts_with("xyzzy", "xy")
-        self.assert_starts_with("xyz\nabc", "xy")
-        self.assert_starts_with("xyzzy", ("x", "z"))
-        msg = re.escape("'xyz' doesn't start with 'a'")
-        with pytest.raises(AssertionError, match=msg):
-            self.assert_starts_with("xyz", "a")
-        msg = re.escape("'xyz\\nabc' doesn't start with 'a'")
-        with pytest.raises(AssertionError, match=msg):
-            self.assert_starts_with("xyz\nabc", "a")
-
     def test_assert_recent_datetime(self):
         def now_delta(seconds):
             """Make a datetime `seconds` seconds from now."""