diff options
Diffstat (limited to 'lib/python2.7/lib2to3/tests/test_util.py')
| -rw-r--r-- | lib/python2.7/lib2to3/tests/test_util.py | 594 |
1 files changed, 0 insertions, 594 deletions
diff --git a/lib/python2.7/lib2to3/tests/test_util.py b/lib/python2.7/lib2to3/tests/test_util.py deleted file mode 100644 index 2fab8b9..0000000 --- a/lib/python2.7/lib2to3/tests/test_util.py +++ /dev/null @@ -1,594 +0,0 @@ -""" Test suite for the code in fixer_util """ - -# Testing imports -from . import support - -# Python imports -import os.path - -# Local imports -from lib2to3.pytree import Node, Leaf -from lib2to3 import fixer_util -from lib2to3.fixer_util import Attr, Name, Call, Comma -from lib2to3.pgen2 import token - -def parse(code, strip_levels=0): - # The topmost node is file_input, which we don't care about. - # The next-topmost node is a *_stmt node, which we also don't care about - tree = support.parse_string(code) - for i in range(strip_levels): - tree = tree.children[0] - tree.parent = None - return tree - -class MacroTestCase(support.TestCase): - def assertStr(self, node, string): - if isinstance(node, (tuple, list)): - node = Node(fixer_util.syms.simple_stmt, node) - self.assertEqual(str(node), string) - - -class Test_is_tuple(support.TestCase): - def is_tuple(self, string): - return fixer_util.is_tuple(parse(string, strip_levels=2)) - - def test_valid(self): - self.assertTrue(self.is_tuple("(a, b)")) - self.assertTrue(self.is_tuple("(a, (b, c))")) - self.assertTrue(self.is_tuple("((a, (b, c)),)")) - self.assertTrue(self.is_tuple("(a,)")) - self.assertTrue(self.is_tuple("()")) - - def test_invalid(self): - self.assertFalse(self.is_tuple("(a)")) - self.assertFalse(self.is_tuple("('foo') % (b, c)")) - - -class Test_is_list(support.TestCase): - def is_list(self, string): - return fixer_util.is_list(parse(string, strip_levels=2)) - - def test_valid(self): - self.assertTrue(self.is_list("[]")) - self.assertTrue(self.is_list("[a]")) - self.assertTrue(self.is_list("[a, b]")) - self.assertTrue(self.is_list("[a, [b, c]]")) - self.assertTrue(self.is_list("[[a, [b, c]],]")) - - def test_invalid(self): - self.assertFalse(self.is_list("[]+[]")) - - -class Test_Attr(MacroTestCase): - def test(self): - call = parse("foo()", strip_levels=2) - - self.assertStr(Attr(Name("a"), Name("b")), "a.b") - self.assertStr(Attr(call, Name("b")), "foo().b") - - def test_returns(self): - attr = Attr(Name("a"), Name("b")) - self.assertEqual(type(attr), list) - - -class Test_Name(MacroTestCase): - def test(self): - self.assertStr(Name("a"), "a") - self.assertStr(Name("foo.foo().bar"), "foo.foo().bar") - self.assertStr(Name("a", prefix="b"), "ba") - - -class Test_Call(MacroTestCase): - def _Call(self, name, args=None, prefix=None): - """Help the next test""" - children = [] - if isinstance(args, list): - for arg in args: - children.append(arg) - children.append(Comma()) - children.pop() - return Call(Name(name), children, prefix) - - def test(self): - kids = [None, - [Leaf(token.NUMBER, 1), Leaf(token.NUMBER, 2), - Leaf(token.NUMBER, 3)], - [Leaf(token.NUMBER, 1), Leaf(token.NUMBER, 3), - Leaf(token.NUMBER, 2), Leaf(token.NUMBER, 4)], - [Leaf(token.STRING, "b"), Leaf(token.STRING, "j", prefix=" ")] - ] - self.assertStr(self._Call("A"), "A()") - self.assertStr(self._Call("b", kids[1]), "b(1,2,3)") - self.assertStr(self._Call("a.b().c", kids[2]), "a.b().c(1,3,2,4)") - self.assertStr(self._Call("d", kids[3], prefix=" "), " d(b, j)") - - -class Test_does_tree_import(support.TestCase): - def _find_bind_rec(self, name, node): - # Search a tree for a binding -- used to find the starting - # point for these tests. - c = fixer_util.find_binding(name, node) - if c: return c - for child in node.children: - c = self._find_bind_rec(name, child) - if c: return c - - def does_tree_import(self, package, name, string): - node = parse(string) - # Find the binding of start -- that's what we'll go from - node = self._find_bind_rec('start', node) - return fixer_util.does_tree_import(package, name, node) - - def try_with(self, string): - failing_tests = (("a", "a", "from a import b"), - ("a.d", "a", "from a.d import b"), - ("d.a", "a", "from d.a import b"), - (None, "a", "import b"), - (None, "a", "import b, c, d")) - for package, name, import_ in failing_tests: - n = self.does_tree_import(package, name, import_ + "\n" + string) - self.assertFalse(n) - n = self.does_tree_import(package, name, string + "\n" + import_) - self.assertFalse(n) - - passing_tests = (("a", "a", "from a import a"), - ("x", "a", "from x import a"), - ("x", "a", "from x import b, c, a, d"), - ("x.b", "a", "from x.b import a"), - ("x.b", "a", "from x.b import b, c, a, d"), - (None, "a", "import a"), - (None, "a", "import b, c, a, d")) - for package, name, import_ in passing_tests: - n = self.does_tree_import(package, name, import_ + "\n" + string) - self.assertTrue(n) - n = self.does_tree_import(package, name, string + "\n" + import_) - self.assertTrue(n) - - def test_in_function(self): - self.try_with("def foo():\n\tbar.baz()\n\tstart=3") - -class Test_find_binding(support.TestCase): - def find_binding(self, name, string, package=None): - return fixer_util.find_binding(name, parse(string), package) - - def test_simple_assignment(self): - self.assertTrue(self.find_binding("a", "a = b")) - self.assertTrue(self.find_binding("a", "a = [b, c, d]")) - self.assertTrue(self.find_binding("a", "a = foo()")) - self.assertTrue(self.find_binding("a", "a = foo().foo.foo[6][foo]")) - self.assertFalse(self.find_binding("a", "foo = a")) - self.assertFalse(self.find_binding("a", "foo = (a, b, c)")) - - def test_tuple_assignment(self): - self.assertTrue(self.find_binding("a", "(a,) = b")) - self.assertTrue(self.find_binding("a", "(a, b, c) = [b, c, d]")) - self.assertTrue(self.find_binding("a", "(c, (d, a), b) = foo()")) - self.assertTrue(self.find_binding("a", "(a, b) = foo().foo[6][foo]")) - self.assertFalse(self.find_binding("a", "(foo, b) = (b, a)")) - self.assertFalse(self.find_binding("a", "(foo, (b, c)) = (a, b, c)")) - - def test_list_assignment(self): - self.assertTrue(self.find_binding("a", "[a] = b")) - self.assertTrue(self.find_binding("a", "[a, b, c] = [b, c, d]")) - self.assertTrue(self.find_binding("a", "[c, [d, a], b] = foo()")) - self.assertTrue(self.find_binding("a", "[a, b] = foo().foo[a][foo]")) - self.assertFalse(self.find_binding("a", "[foo, b] = (b, a)")) - self.assertFalse(self.find_binding("a", "[foo, [b, c]] = (a, b, c)")) - - def test_invalid_assignments(self): - self.assertFalse(self.find_binding("a", "foo.a = 5")) - self.assertFalse(self.find_binding("a", "foo[a] = 5")) - self.assertFalse(self.find_binding("a", "foo(a) = 5")) - self.assertFalse(self.find_binding("a", "foo(a, b) = 5")) - - def test_simple_import(self): - self.assertTrue(self.find_binding("a", "import a")) - self.assertTrue(self.find_binding("a", "import b, c, a, d")) - self.assertFalse(self.find_binding("a", "import b")) - self.assertFalse(self.find_binding("a", "import b, c, d")) - - def test_from_import(self): - self.assertTrue(self.find_binding("a", "from x import a")) - self.assertTrue(self.find_binding("a", "from a import a")) - self.assertTrue(self.find_binding("a", "from x import b, c, a, d")) - self.assertTrue(self.find_binding("a", "from x.b import a")) - self.assertTrue(self.find_binding("a", "from x.b import b, c, a, d")) - self.assertFalse(self.find_binding("a", "from a import b")) - self.assertFalse(self.find_binding("a", "from a.d import b")) - self.assertFalse(self.find_binding("a", "from d.a import b")) - - def test_import_as(self): - self.assertTrue(self.find_binding("a", "import b as a")) - self.assertTrue(self.find_binding("a", "import b as a, c, a as f, d")) - self.assertFalse(self.find_binding("a", "import a as f")) - self.assertFalse(self.find_binding("a", "import b, c as f, d as e")) - - def test_from_import_as(self): - self.assertTrue(self.find_binding("a", "from x import b as a")) - self.assertTrue(self.find_binding("a", "from x import g as a, d as b")) - self.assertTrue(self.find_binding("a", "from x.b import t as a")) - self.assertTrue(self.find_binding("a", "from x.b import g as a, d")) - self.assertFalse(self.find_binding("a", "from a import b as t")) - self.assertFalse(self.find_binding("a", "from a.d import b as t")) - self.assertFalse(self.find_binding("a", "from d.a import b as t")) - - def test_simple_import_with_package(self): - self.assertTrue(self.find_binding("b", "import b")) - self.assertTrue(self.find_binding("b", "import b, c, d")) - self.assertFalse(self.find_binding("b", "import b", "b")) - self.assertFalse(self.find_binding("b", "import b, c, d", "c")) - - def test_from_import_with_package(self): - self.assertTrue(self.find_binding("a", "from x import a", "x")) - self.assertTrue(self.find_binding("a", "from a import a", "a")) - self.assertTrue(self.find_binding("a", "from x import *", "x")) - self.assertTrue(self.find_binding("a", "from x import b, c, a, d", "x")) - self.assertTrue(self.find_binding("a", "from x.b import a", "x.b")) - self.assertTrue(self.find_binding("a", "from x.b import *", "x.b")) - self.assertTrue(self.find_binding("a", "from x.b import b, c, a, d", "x.b")) - self.assertFalse(self.find_binding("a", "from a import b", "a")) - self.assertFalse(self.find_binding("a", "from a.d import b", "a.d")) - self.assertFalse(self.find_binding("a", "from d.a import b", "a.d")) - self.assertFalse(self.find_binding("a", "from x.y import *", "a.b")) - - def test_import_as_with_package(self): - self.assertFalse(self.find_binding("a", "import b.c as a", "b.c")) - self.assertFalse(self.find_binding("a", "import a as f", "f")) - self.assertFalse(self.find_binding("a", "import a as f", "a")) - - def test_from_import_as_with_package(self): - # Because it would take a lot of special-case code in the fixers - # to deal with from foo import bar as baz, we'll simply always - # fail if there is an "from ... import ... as ..." - self.assertFalse(self.find_binding("a", "from x import b as a", "x")) - self.assertFalse(self.find_binding("a", "from x import g as a, d as b", "x")) - self.assertFalse(self.find_binding("a", "from x.b import t as a", "x.b")) - self.assertFalse(self.find_binding("a", "from x.b import g as a, d", "x.b")) - self.assertFalse(self.find_binding("a", "from a import b as t", "a")) - self.assertFalse(self.find_binding("a", "from a import b as t", "b")) - self.assertFalse(self.find_binding("a", "from a import b as t", "t")) - - def test_function_def(self): - self.assertTrue(self.find_binding("a", "def a(): pass")) - self.assertTrue(self.find_binding("a", "def a(b, c, d): pass")) - self.assertTrue(self.find_binding("a", "def a(): b = 7")) - self.assertFalse(self.find_binding("a", "def d(b, (c, a), e): pass")) - self.assertFalse(self.find_binding("a", "def d(a=7): pass")) - self.assertFalse(self.find_binding("a", "def d(a): pass")) - self.assertFalse(self.find_binding("a", "def d(): a = 7")) - - s = """ - def d(): - def a(): - pass""" - self.assertFalse(self.find_binding("a", s)) - - def test_class_def(self): - self.assertTrue(self.find_binding("a", "class a: pass")) - self.assertTrue(self.find_binding("a", "class a(): pass")) - self.assertTrue(self.find_binding("a", "class a(b): pass")) - self.assertTrue(self.find_binding("a", "class a(b, c=8): pass")) - self.assertFalse(self.find_binding("a", "class d: pass")) - self.assertFalse(self.find_binding("a", "class d(a): pass")) - self.assertFalse(self.find_binding("a", "class d(b, a=7): pass")) - self.assertFalse(self.find_binding("a", "class d(b, *a): pass")) - self.assertFalse(self.find_binding("a", "class d(b, **a): pass")) - self.assertFalse(self.find_binding("a", "class d: a = 7")) - - s = """ - class d(): - class a(): - pass""" - self.assertFalse(self.find_binding("a", s)) - - def test_for(self): - self.assertTrue(self.find_binding("a", "for a in r: pass")) - self.assertTrue(self.find_binding("a", "for a, b in r: pass")) - self.assertTrue(self.find_binding("a", "for (a, b) in r: pass")) - self.assertTrue(self.find_binding("a", "for c, (a,) in r: pass")) - self.assertTrue(self.find_binding("a", "for c, (a, b) in r: pass")) - self.assertTrue(self.find_binding("a", "for c in r: a = c")) - self.assertFalse(self.find_binding("a", "for c in a: pass")) - - def test_for_nested(self): - s = """ - for b in r: - for a in b: - pass""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - for b in r: - for a, c in b: - pass""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - for b in r: - for (a, c) in b: - pass""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - for b in r: - for (a,) in b: - pass""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - for b in r: - for c, (a, d) in b: - pass""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - for b in r: - for c in b: - a = 7""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - for b in r: - for c in b: - d = a""" - self.assertFalse(self.find_binding("a", s)) - - s = """ - for b in r: - for c in a: - d = 7""" - self.assertFalse(self.find_binding("a", s)) - - def test_if(self): - self.assertTrue(self.find_binding("a", "if b in r: a = c")) - self.assertFalse(self.find_binding("a", "if a in r: d = e")) - - def test_if_nested(self): - s = """ - if b in r: - if c in d: - a = c""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - if b in r: - if c in d: - c = a""" - self.assertFalse(self.find_binding("a", s)) - - def test_while(self): - self.assertTrue(self.find_binding("a", "while b in r: a = c")) - self.assertFalse(self.find_binding("a", "while a in r: d = e")) - - def test_while_nested(self): - s = """ - while b in r: - while c in d: - a = c""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - while b in r: - while c in d: - c = a""" - self.assertFalse(self.find_binding("a", s)) - - def test_try_except(self): - s = """ - try: - a = 6 - except: - b = 8""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - except: - a = 6""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - except KeyError: - pass - except: - a = 6""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - except: - b = 6""" - self.assertFalse(self.find_binding("a", s)) - - def test_try_except_nested(self): - s = """ - try: - try: - a = 6 - except: - pass - except: - b = 8""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - except: - try: - a = 6 - except: - pass""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - except: - try: - pass - except: - a = 6""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - try: - b = 8 - except KeyError: - pass - except: - a = 6 - except: - pass""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - pass - except: - try: - b = 8 - except KeyError: - pass - except: - a = 6""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - except: - b = 6""" - self.assertFalse(self.find_binding("a", s)) - - s = """ - try: - try: - b = 8 - except: - c = d - except: - try: - b = 6 - except: - t = 8 - except: - o = y""" - self.assertFalse(self.find_binding("a", s)) - - def test_try_except_finally(self): - s = """ - try: - c = 6 - except: - b = 8 - finally: - a = 9""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - finally: - a = 6""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - finally: - b = 6""" - self.assertFalse(self.find_binding("a", s)) - - s = """ - try: - b = 8 - except: - b = 9 - finally: - b = 6""" - self.assertFalse(self.find_binding("a", s)) - - def test_try_except_finally_nested(self): - s = """ - try: - c = 6 - except: - b = 8 - finally: - try: - a = 9 - except: - b = 9 - finally: - c = 9""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - finally: - try: - pass - finally: - a = 6""" - self.assertTrue(self.find_binding("a", s)) - - s = """ - try: - b = 8 - finally: - try: - b = 6 - finally: - b = 7""" - self.assertFalse(self.find_binding("a", s)) - -class Test_touch_import(support.TestCase): - - def test_after_docstring(self): - node = parse('"""foo"""\nbar()') - fixer_util.touch_import(None, "foo", node) - self.assertEqual(str(node), '"""foo"""\nimport foo\nbar()\n\n') - - def test_after_imports(self): - node = parse('"""foo"""\nimport bar\nbar()') - fixer_util.touch_import(None, "foo", node) - self.assertEqual(str(node), '"""foo"""\nimport bar\nimport foo\nbar()\n\n') - - def test_beginning(self): - node = parse('bar()') - fixer_util.touch_import(None, "foo", node) - self.assertEqual(str(node), 'import foo\nbar()\n\n') - - def test_from_import(self): - node = parse('bar()') - fixer_util.touch_import("html", "escape", node) - self.assertEqual(str(node), 'from html import escape\nbar()\n\n') - - def test_name_import(self): - node = parse('bar()') - fixer_util.touch_import(None, "cgi", node) - self.assertEqual(str(node), 'import cgi\nbar()\n\n') - -class Test_find_indentation(support.TestCase): - - def test_nothing(self): - fi = fixer_util.find_indentation - node = parse("node()") - self.assertEqual(fi(node), u"") - node = parse("") - self.assertEqual(fi(node), u"") - - def test_simple(self): - fi = fixer_util.find_indentation - node = parse("def f():\n x()") - self.assertEqual(fi(node), u"") - self.assertEqual(fi(node.children[0].children[4].children[2]), u" ") - node = parse("def f():\n x()\n y()") - self.assertEqual(fi(node.children[0].children[4].children[4]), u" ") |