1 files changed, 63 insertions, 0 deletions
diff --git a/tests/debug_statement_hook_test.py b/tests/debug_statement_hook_test.py
new file mode 100644
index 0000000..5a8e0bb
--- /dev/null
+++ b/tests/debug_statement_hook_test.py
@@ -0,0 +1,63 @@
+from __future__ import annotations
+
+import ast
+
+from pre_commit_hooks.debug_statement_hook import Debug
+from pre_commit_hooks.debug_statement_hook import DebugStatementParser
+from pre_commit_hooks.debug_statement_hook import main
+from testing.util import get_resource_path
+
+
+def test_no_breakpoints():
+    visitor = DebugStatementParser()
+    visitor.visit(ast.parse('import os\nfrom foo import bar\n'))
+    assert visitor.breakpoints == []
+
+
+def test_finds_debug_import_attribute_access():
+    visitor = DebugStatementParser()
+    visitor.visit(ast.parse('import ipdb; ipdb.set_trace()'))
+    assert visitor.breakpoints == [Debug(1, 0, 'ipdb', 'imported')]
+
+
+def test_finds_debug_import_from_import():
+    visitor = DebugStatementParser()
+    visitor.visit(ast.parse('from pudb import set_trace; set_trace()'))
+    assert visitor.breakpoints == [Debug(1, 0, 'pudb', 'imported')]
+
+
+def test_finds_breakpoint():
+    visitor = DebugStatementParser()
+    visitor.visit(ast.parse('breakpoint()'))
+    assert visitor.breakpoints == [Debug(1, 0, 'breakpoint', 'called')]
+
+
+def test_returns_one_for_failing_file(tmpdir):
+    f_py = tmpdir.join('f.py')
+    f_py.write('def f():\n    import pdb; pdb.set_trace()')
+    ret = main([str(f_py)])
+    assert ret == 1
+
+
+def test_returns_zero_for_passing_file():
+    ret = main([__file__])
+    assert ret == 0
+
+
+def test_syntaxerror_file():
+    ret = main([get_resource_path('cannot_parse_ast.notpy')])
+    assert ret == 1
+
+
+def test_non_utf8_file(tmpdir):
+    f_py = tmpdir.join('f.py')
+    f_py.write_binary('# -*- coding: cp1252 -*-\nx = "€"\n'.encode('cp1252'))
+    assert main((str(f_py),)) == 0
+
+
+def test_py37_breakpoint(tmpdir, capsys):
+    f_py = tmpdir.join('f.py')
+    f_py.write('def f():\n    breakpoint()\n')
+    assert main((str(f_py),)) == 1
+    out, _ = capsys.readouterr()
+    assert out == f'{f_py}:2:4: breakpoint called\n'