pytest_plugins = "pytest_pytester" class TestPyLookup: def test_basic(self, testdir): p = testdir.makepyfile(hello="def x(): pass") result = testdir.runpybin("py.lookup", "pass") result.stdout.fnmatch_lines( ['%s:*def x(): pass' %(p.basename)] ) def test_search_in_filename(self, testdir): p = testdir.makepyfile(hello="def x(): pass") result = testdir.runpybin("py.lookup", "hello") result.stdout.fnmatch_lines( ['*%s:*' %(p.basename)] ) def test_with_explicit_path(self, testdir): sub1 = testdir.mkdir("things") sub2 = testdir.mkdir("foo") sub1.join("pyfile.py").write("def stuff(): pass") searched = sub2.join("other.py") searched.write("stuff = x") result = testdir.runpybin("py.lookup", sub2.basename, "stuff") result.stdout.fnmatch_lines( ["%s:1: stuff = x" % (searched.basename,)] )