1 files changed, 116 insertions, 0 deletions
diff --git a/tests/test_execfile.py b/tests/test_execfile.py
new file mode 100644
index 00000000..e7d7041f
--- /dev/null
+++ b/tests/test_execfile.py
@@ -0,0 +1,116 @@
+"""Tests for coverage.execfile"""
+
+import os, sys
+
+from coverage.execfile import run_python_file, run_python_module
+from coverage.misc import NoSource
+
+from test.coveragetest import CoverageTest
+
+here = os.path.dirname(__file__)
+
+class RunFileTest(CoverageTest):
+    """Test cases for `run_python_file`."""
+
+    def test_run_python_file(self):
+        tryfile = os.path.join(here, "try_execfile.py")
+        run_python_file(tryfile, [tryfile, "arg1", "arg2"])
+        mod_globs = eval(self.stdout())
+
+        # The file should think it is __main__
+        self.assertEqual(mod_globs['__name__'], "__main__")
+
+        # It should seem to come from a file named try_execfile.py
+        dunder_file = os.path.basename(mod_globs['__file__'])
+        self.assertEqual(dunder_file, "try_execfile.py")
+
+        # It should have its correct module data.
+        self.assertEqual(mod_globs['__doc__'],
+                            "Test file for run_python_file.")
+        self.assertEqual(mod_globs['DATA'], "xyzzy")
+        self.assertEqual(mod_globs['FN_VAL'], "my_fn('fooey')")
+
+        # It must be self-importable as __main__.
+        self.assertEqual(mod_globs['__main__.DATA'], "xyzzy")
+
+        # Argv should have the proper values.
+        self.assertEqual(mod_globs['argv'], [tryfile, "arg1", "arg2"])
+
+        # __builtins__ should have the right values, like open().
+        self.assertEqual(mod_globs['__builtins__.has_open'], True)
+
+    def test_no_extra_file(self):
+        # Make sure that running a file doesn't create an extra compiled file.
+        self.make_file("xxx", """\
+            desc = "a non-.py file!"
+            """)
+
+        self.assertEqual(os.listdir("."), ["xxx"])
+        run_python_file("xxx", ["xxx"])
+        self.assertEqual(os.listdir("."), ["xxx"])
+
+    def test_universal_newlines(self):
+        # Make sure we can read any sort of line ending.
+        pylines = """# try newlines|print('Hello, world!')|""".split('|')
+        for nl in ('\n', '\r\n', '\r'):
+            fpy = open('nl.py', 'wb')
+            try:
+                fpy.write(nl.join(pylines).encode('utf-8'))
+            finally:
+                fpy.close()
+            run_python_file('nl.py', ['nl.py'])
+        self.assertEqual(self.stdout(), "Hello, world!\n"*3)
+
+    def test_missing_final_newline(self):
+        # Make sure we can deal with a Python file with no final newline.
+        self.make_file("abrupt.py", """\
+            if 1:
+                a = 1
+                print("a is %r" % a)
+                #""")
+        abrupt = open("abrupt.py").read()
+        self.assertEqual(abrupt[-1], '#')
+        run_python_file("abrupt.py", ["abrupt.py"])
+        self.assertEqual(self.stdout(), "a is 1\n")
+
+    def test_no_such_file(self):
+        self.assertRaises(NoSource, run_python_file, "xyzzy.py", [])
+
+
+class RunModuleTest(CoverageTest):
+    """Test run_python_module."""
+
+    run_in_temp_dir = False
+
+    def setUp(self):
+        super(RunModuleTest, self).setUp()
+        # Parent class saves and restores sys.path, we can just modify it.
+        sys.path.append(self.nice_file(os.path.dirname(__file__), 'modules'))
+
+    def test_runmod1(self):
+        run_python_module("runmod1", ["runmod1", "hello"])
+        self.assertEqual(self.stdout(), "runmod1: passed hello\n")
+
+    def test_runmod2(self):
+        run_python_module("pkg1.runmod2", ["runmod2", "hello"])
+        self.assertEqual(self.stdout(), "runmod2: passed hello\n")
+
+    def test_runmod3(self):
+        run_python_module("pkg1.sub.runmod3", ["runmod3", "hello"])
+        self.assertEqual(self.stdout(), "runmod3: passed hello\n")
+
+    def test_pkg1_main(self):
+        run_python_module("pkg1", ["pkg1", "hello"])
+        self.assertEqual(self.stdout(), "pkg1.__main__: passed hello\n")
+
+    def test_pkg1_sub_main(self):
+        run_python_module("pkg1.sub", ["pkg1.sub", "hello"])
+        self.assertEqual(self.stdout(), "pkg1.sub.__main__: passed hello\n")
+
+    def test_no_such_module(self):
+        self.assertRaises(NoSource, run_python_module, "i_dont_exist", [])
+        self.assertRaises(NoSource, run_python_module, "i.dont_exist", [])
+        self.assertRaises(NoSource, run_python_module, "i.dont.exist", [])
+
+    def test_no_main(self):
+        self.assertRaises(NoSource, run_python_module, "pkg2", ["pkg2", "hi"])