| 4710c53d |
1 | """ Test suite for the code in fixer_util """\r |
| 2 | \r |
| 3 | # Testing imports\r |
| 4 | from . import support\r |
| 5 | \r |
| 6 | # Python imports\r |
| 7 | import os.path\r |
| 8 | \r |
| 9 | # Local imports\r |
| 10 | from lib2to3.pytree import Node, Leaf\r |
| 11 | from lib2to3 import fixer_util\r |
| 12 | from lib2to3.fixer_util import Attr, Name, Call, Comma\r |
| 13 | from lib2to3.pgen2 import token\r |
| 14 | \r |
| 15 | def parse(code, strip_levels=0):\r |
| 16 | # The topmost node is file_input, which we don't care about.\r |
| 17 | # The next-topmost node is a *_stmt node, which we also don't care about\r |
| 18 | tree = support.parse_string(code)\r |
| 19 | for i in range(strip_levels):\r |
| 20 | tree = tree.children[0]\r |
| 21 | tree.parent = None\r |
| 22 | return tree\r |
| 23 | \r |
| 24 | class MacroTestCase(support.TestCase):\r |
| 25 | def assertStr(self, node, string):\r |
| 26 | if isinstance(node, (tuple, list)):\r |
| 27 | node = Node(fixer_util.syms.simple_stmt, node)\r |
| 28 | self.assertEqual(str(node), string)\r |
| 29 | \r |
| 30 | \r |
| 31 | class Test_is_tuple(support.TestCase):\r |
| 32 | def is_tuple(self, string):\r |
| 33 | return fixer_util.is_tuple(parse(string, strip_levels=2))\r |
| 34 | \r |
| 35 | def test_valid(self):\r |
| 36 | self.assertTrue(self.is_tuple("(a, b)"))\r |
| 37 | self.assertTrue(self.is_tuple("(a, (b, c))"))\r |
| 38 | self.assertTrue(self.is_tuple("((a, (b, c)),)"))\r |
| 39 | self.assertTrue(self.is_tuple("(a,)"))\r |
| 40 | self.assertTrue(self.is_tuple("()"))\r |
| 41 | \r |
| 42 | def test_invalid(self):\r |
| 43 | self.assertFalse(self.is_tuple("(a)"))\r |
| 44 | self.assertFalse(self.is_tuple("('foo') % (b, c)"))\r |
| 45 | \r |
| 46 | \r |
| 47 | class Test_is_list(support.TestCase):\r |
| 48 | def is_list(self, string):\r |
| 49 | return fixer_util.is_list(parse(string, strip_levels=2))\r |
| 50 | \r |
| 51 | def test_valid(self):\r |
| 52 | self.assertTrue(self.is_list("[]"))\r |
| 53 | self.assertTrue(self.is_list("[a]"))\r |
| 54 | self.assertTrue(self.is_list("[a, b]"))\r |
| 55 | self.assertTrue(self.is_list("[a, [b, c]]"))\r |
| 56 | self.assertTrue(self.is_list("[[a, [b, c]],]"))\r |
| 57 | \r |
| 58 | def test_invalid(self):\r |
| 59 | self.assertFalse(self.is_list("[]+[]"))\r |
| 60 | \r |
| 61 | \r |
| 62 | class Test_Attr(MacroTestCase):\r |
| 63 | def test(self):\r |
| 64 | call = parse("foo()", strip_levels=2)\r |
| 65 | \r |
| 66 | self.assertStr(Attr(Name("a"), Name("b")), "a.b")\r |
| 67 | self.assertStr(Attr(call, Name("b")), "foo().b")\r |
| 68 | \r |
| 69 | def test_returns(self):\r |
| 70 | attr = Attr(Name("a"), Name("b"))\r |
| 71 | self.assertEqual(type(attr), list)\r |
| 72 | \r |
| 73 | \r |
| 74 | class Test_Name(MacroTestCase):\r |
| 75 | def test(self):\r |
| 76 | self.assertStr(Name("a"), "a")\r |
| 77 | self.assertStr(Name("foo.foo().bar"), "foo.foo().bar")\r |
| 78 | self.assertStr(Name("a", prefix="b"), "ba")\r |
| 79 | \r |
| 80 | \r |
| 81 | class Test_Call(MacroTestCase):\r |
| 82 | def _Call(self, name, args=None, prefix=None):\r |
| 83 | """Help the next test"""\r |
| 84 | children = []\r |
| 85 | if isinstance(args, list):\r |
| 86 | for arg in args:\r |
| 87 | children.append(arg)\r |
| 88 | children.append(Comma())\r |
| 89 | children.pop()\r |
| 90 | return Call(Name(name), children, prefix)\r |
| 91 | \r |
| 92 | def test(self):\r |
| 93 | kids = [None,\r |
| 94 | [Leaf(token.NUMBER, 1), Leaf(token.NUMBER, 2),\r |
| 95 | Leaf(token.NUMBER, 3)],\r |
| 96 | [Leaf(token.NUMBER, 1), Leaf(token.NUMBER, 3),\r |
| 97 | Leaf(token.NUMBER, 2), Leaf(token.NUMBER, 4)],\r |
| 98 | [Leaf(token.STRING, "b"), Leaf(token.STRING, "j", prefix=" ")]\r |
| 99 | ]\r |
| 100 | self.assertStr(self._Call("A"), "A()")\r |
| 101 | self.assertStr(self._Call("b", kids[1]), "b(1,2,3)")\r |
| 102 | self.assertStr(self._Call("a.b().c", kids[2]), "a.b().c(1,3,2,4)")\r |
| 103 | self.assertStr(self._Call("d", kids[3], prefix=" "), " d(b, j)")\r |
| 104 | \r |
| 105 | \r |
| 106 | class Test_does_tree_import(support.TestCase):\r |
| 107 | def _find_bind_rec(self, name, node):\r |
| 108 | # Search a tree for a binding -- used to find the starting\r |
| 109 | # point for these tests.\r |
| 110 | c = fixer_util.find_binding(name, node)\r |
| 111 | if c: return c\r |
| 112 | for child in node.children:\r |
| 113 | c = self._find_bind_rec(name, child)\r |
| 114 | if c: return c\r |
| 115 | \r |
| 116 | def does_tree_import(self, package, name, string):\r |
| 117 | node = parse(string)\r |
| 118 | # Find the binding of start -- that's what we'll go from\r |
| 119 | node = self._find_bind_rec('start', node)\r |
| 120 | return fixer_util.does_tree_import(package, name, node)\r |
| 121 | \r |
| 122 | def try_with(self, string):\r |
| 123 | failing_tests = (("a", "a", "from a import b"),\r |
| 124 | ("a.d", "a", "from a.d import b"),\r |
| 125 | ("d.a", "a", "from d.a import b"),\r |
| 126 | (None, "a", "import b"),\r |
| 127 | (None, "a", "import b, c, d"))\r |
| 128 | for package, name, import_ in failing_tests:\r |
| 129 | n = self.does_tree_import(package, name, import_ + "\n" + string)\r |
| 130 | self.assertFalse(n)\r |
| 131 | n = self.does_tree_import(package, name, string + "\n" + import_)\r |
| 132 | self.assertFalse(n)\r |
| 133 | \r |
| 134 | passing_tests = (("a", "a", "from a import a"),\r |
| 135 | ("x", "a", "from x import a"),\r |
| 136 | ("x", "a", "from x import b, c, a, d"),\r |
| 137 | ("x.b", "a", "from x.b import a"),\r |
| 138 | ("x.b", "a", "from x.b import b, c, a, d"),\r |
| 139 | (None, "a", "import a"),\r |
| 140 | (None, "a", "import b, c, a, d"))\r |
| 141 | for package, name, import_ in passing_tests:\r |
| 142 | n = self.does_tree_import(package, name, import_ + "\n" + string)\r |
| 143 | self.assertTrue(n)\r |
| 144 | n = self.does_tree_import(package, name, string + "\n" + import_)\r |
| 145 | self.assertTrue(n)\r |
| 146 | \r |
| 147 | def test_in_function(self):\r |
| 148 | self.try_with("def foo():\n\tbar.baz()\n\tstart=3")\r |
| 149 | \r |
| 150 | class Test_find_binding(support.TestCase):\r |
| 151 | def find_binding(self, name, string, package=None):\r |
| 152 | return fixer_util.find_binding(name, parse(string), package)\r |
| 153 | \r |
| 154 | def test_simple_assignment(self):\r |
| 155 | self.assertTrue(self.find_binding("a", "a = b"))\r |
| 156 | self.assertTrue(self.find_binding("a", "a = [b, c, d]"))\r |
| 157 | self.assertTrue(self.find_binding("a", "a = foo()"))\r |
| 158 | self.assertTrue(self.find_binding("a", "a = foo().foo.foo[6][foo]"))\r |
| 159 | self.assertFalse(self.find_binding("a", "foo = a"))\r |
| 160 | self.assertFalse(self.find_binding("a", "foo = (a, b, c)"))\r |
| 161 | \r |
| 162 | def test_tuple_assignment(self):\r |
| 163 | self.assertTrue(self.find_binding("a", "(a,) = b"))\r |
| 164 | self.assertTrue(self.find_binding("a", "(a, b, c) = [b, c, d]"))\r |
| 165 | self.assertTrue(self.find_binding("a", "(c, (d, a), b) = foo()"))\r |
| 166 | self.assertTrue(self.find_binding("a", "(a, b) = foo().foo[6][foo]"))\r |
| 167 | self.assertFalse(self.find_binding("a", "(foo, b) = (b, a)"))\r |
| 168 | self.assertFalse(self.find_binding("a", "(foo, (b, c)) = (a, b, c)"))\r |
| 169 | \r |
| 170 | def test_list_assignment(self):\r |
| 171 | self.assertTrue(self.find_binding("a", "[a] = b"))\r |
| 172 | self.assertTrue(self.find_binding("a", "[a, b, c] = [b, c, d]"))\r |
| 173 | self.assertTrue(self.find_binding("a", "[c, [d, a], b] = foo()"))\r |
| 174 | self.assertTrue(self.find_binding("a", "[a, b] = foo().foo[a][foo]"))\r |
| 175 | self.assertFalse(self.find_binding("a", "[foo, b] = (b, a)"))\r |
| 176 | self.assertFalse(self.find_binding("a", "[foo, [b, c]] = (a, b, c)"))\r |
| 177 | \r |
| 178 | def test_invalid_assignments(self):\r |
| 179 | self.assertFalse(self.find_binding("a", "foo.a = 5"))\r |
| 180 | self.assertFalse(self.find_binding("a", "foo[a] = 5"))\r |
| 181 | self.assertFalse(self.find_binding("a", "foo(a) = 5"))\r |
| 182 | self.assertFalse(self.find_binding("a", "foo(a, b) = 5"))\r |
| 183 | \r |
| 184 | def test_simple_import(self):\r |
| 185 | self.assertTrue(self.find_binding("a", "import a"))\r |
| 186 | self.assertTrue(self.find_binding("a", "import b, c, a, d"))\r |
| 187 | self.assertFalse(self.find_binding("a", "import b"))\r |
| 188 | self.assertFalse(self.find_binding("a", "import b, c, d"))\r |
| 189 | \r |
| 190 | def test_from_import(self):\r |
| 191 | self.assertTrue(self.find_binding("a", "from x import a"))\r |
| 192 | self.assertTrue(self.find_binding("a", "from a import a"))\r |
| 193 | self.assertTrue(self.find_binding("a", "from x import b, c, a, d"))\r |
| 194 | self.assertTrue(self.find_binding("a", "from x.b import a"))\r |
| 195 | self.assertTrue(self.find_binding("a", "from x.b import b, c, a, d"))\r |
| 196 | self.assertFalse(self.find_binding("a", "from a import b"))\r |
| 197 | self.assertFalse(self.find_binding("a", "from a.d import b"))\r |
| 198 | self.assertFalse(self.find_binding("a", "from d.a import b"))\r |
| 199 | \r |
| 200 | def test_import_as(self):\r |
| 201 | self.assertTrue(self.find_binding("a", "import b as a"))\r |
| 202 | self.assertTrue(self.find_binding("a", "import b as a, c, a as f, d"))\r |
| 203 | self.assertFalse(self.find_binding("a", "import a as f"))\r |
| 204 | self.assertFalse(self.find_binding("a", "import b, c as f, d as e"))\r |
| 205 | \r |
| 206 | def test_from_import_as(self):\r |
| 207 | self.assertTrue(self.find_binding("a", "from x import b as a"))\r |
| 208 | self.assertTrue(self.find_binding("a", "from x import g as a, d as b"))\r |
| 209 | self.assertTrue(self.find_binding("a", "from x.b import t as a"))\r |
| 210 | self.assertTrue(self.find_binding("a", "from x.b import g as a, d"))\r |
| 211 | self.assertFalse(self.find_binding("a", "from a import b as t"))\r |
| 212 | self.assertFalse(self.find_binding("a", "from a.d import b as t"))\r |
| 213 | self.assertFalse(self.find_binding("a", "from d.a import b as t"))\r |
| 214 | \r |
| 215 | def test_simple_import_with_package(self):\r |
| 216 | self.assertTrue(self.find_binding("b", "import b"))\r |
| 217 | self.assertTrue(self.find_binding("b", "import b, c, d"))\r |
| 218 | self.assertFalse(self.find_binding("b", "import b", "b"))\r |
| 219 | self.assertFalse(self.find_binding("b", "import b, c, d", "c"))\r |
| 220 | \r |
| 221 | def test_from_import_with_package(self):\r |
| 222 | self.assertTrue(self.find_binding("a", "from x import a", "x"))\r |
| 223 | self.assertTrue(self.find_binding("a", "from a import a", "a"))\r |
| 224 | self.assertTrue(self.find_binding("a", "from x import *", "x"))\r |
| 225 | self.assertTrue(self.find_binding("a", "from x import b, c, a, d", "x"))\r |
| 226 | self.assertTrue(self.find_binding("a", "from x.b import a", "x.b"))\r |
| 227 | self.assertTrue(self.find_binding("a", "from x.b import *", "x.b"))\r |
| 228 | self.assertTrue(self.find_binding("a", "from x.b import b, c, a, d", "x.b"))\r |
| 229 | self.assertFalse(self.find_binding("a", "from a import b", "a"))\r |
| 230 | self.assertFalse(self.find_binding("a", "from a.d import b", "a.d"))\r |
| 231 | self.assertFalse(self.find_binding("a", "from d.a import b", "a.d"))\r |
| 232 | self.assertFalse(self.find_binding("a", "from x.y import *", "a.b"))\r |
| 233 | \r |
| 234 | def test_import_as_with_package(self):\r |
| 235 | self.assertFalse(self.find_binding("a", "import b.c as a", "b.c"))\r |
| 236 | self.assertFalse(self.find_binding("a", "import a as f", "f"))\r |
| 237 | self.assertFalse(self.find_binding("a", "import a as f", "a"))\r |
| 238 | \r |
| 239 | def test_from_import_as_with_package(self):\r |
| 240 | # Because it would take a lot of special-case code in the fixers\r |
| 241 | # to deal with from foo import bar as baz, we'll simply always\r |
| 242 | # fail if there is an "from ... import ... as ..."\r |
| 243 | self.assertFalse(self.find_binding("a", "from x import b as a", "x"))\r |
| 244 | self.assertFalse(self.find_binding("a", "from x import g as a, d as b", "x"))\r |
| 245 | self.assertFalse(self.find_binding("a", "from x.b import t as a", "x.b"))\r |
| 246 | self.assertFalse(self.find_binding("a", "from x.b import g as a, d", "x.b"))\r |
| 247 | self.assertFalse(self.find_binding("a", "from a import b as t", "a"))\r |
| 248 | self.assertFalse(self.find_binding("a", "from a import b as t", "b"))\r |
| 249 | self.assertFalse(self.find_binding("a", "from a import b as t", "t"))\r |
| 250 | \r |
| 251 | def test_function_def(self):\r |
| 252 | self.assertTrue(self.find_binding("a", "def a(): pass"))\r |
| 253 | self.assertTrue(self.find_binding("a", "def a(b, c, d): pass"))\r |
| 254 | self.assertTrue(self.find_binding("a", "def a(): b = 7"))\r |
| 255 | self.assertFalse(self.find_binding("a", "def d(b, (c, a), e): pass"))\r |
| 256 | self.assertFalse(self.find_binding("a", "def d(a=7): pass"))\r |
| 257 | self.assertFalse(self.find_binding("a", "def d(a): pass"))\r |
| 258 | self.assertFalse(self.find_binding("a", "def d(): a = 7"))\r |
| 259 | \r |
| 260 | s = """\r |
| 261 | def d():\r |
| 262 | def a():\r |
| 263 | pass"""\r |
| 264 | self.assertFalse(self.find_binding("a", s))\r |
| 265 | \r |
| 266 | def test_class_def(self):\r |
| 267 | self.assertTrue(self.find_binding("a", "class a: pass"))\r |
| 268 | self.assertTrue(self.find_binding("a", "class a(): pass"))\r |
| 269 | self.assertTrue(self.find_binding("a", "class a(b): pass"))\r |
| 270 | self.assertTrue(self.find_binding("a", "class a(b, c=8): pass"))\r |
| 271 | self.assertFalse(self.find_binding("a", "class d: pass"))\r |
| 272 | self.assertFalse(self.find_binding("a", "class d(a): pass"))\r |
| 273 | self.assertFalse(self.find_binding("a", "class d(b, a=7): pass"))\r |
| 274 | self.assertFalse(self.find_binding("a", "class d(b, *a): pass"))\r |
| 275 | self.assertFalse(self.find_binding("a", "class d(b, **a): pass"))\r |
| 276 | self.assertFalse(self.find_binding("a", "class d: a = 7"))\r |
| 277 | \r |
| 278 | s = """\r |
| 279 | class d():\r |
| 280 | class a():\r |
| 281 | pass"""\r |
| 282 | self.assertFalse(self.find_binding("a", s))\r |
| 283 | \r |
| 284 | def test_for(self):\r |
| 285 | self.assertTrue(self.find_binding("a", "for a in r: pass"))\r |
| 286 | self.assertTrue(self.find_binding("a", "for a, b in r: pass"))\r |
| 287 | self.assertTrue(self.find_binding("a", "for (a, b) in r: pass"))\r |
| 288 | self.assertTrue(self.find_binding("a", "for c, (a,) in r: pass"))\r |
| 289 | self.assertTrue(self.find_binding("a", "for c, (a, b) in r: pass"))\r |
| 290 | self.assertTrue(self.find_binding("a", "for c in r: a = c"))\r |
| 291 | self.assertFalse(self.find_binding("a", "for c in a: pass"))\r |
| 292 | \r |
| 293 | def test_for_nested(self):\r |
| 294 | s = """\r |
| 295 | for b in r:\r |
| 296 | for a in b:\r |
| 297 | pass"""\r |
| 298 | self.assertTrue(self.find_binding("a", s))\r |
| 299 | \r |
| 300 | s = """\r |
| 301 | for b in r:\r |
| 302 | for a, c in b:\r |
| 303 | pass"""\r |
| 304 | self.assertTrue(self.find_binding("a", s))\r |
| 305 | \r |
| 306 | s = """\r |
| 307 | for b in r:\r |
| 308 | for (a, c) in b:\r |
| 309 | pass"""\r |
| 310 | self.assertTrue(self.find_binding("a", s))\r |
| 311 | \r |
| 312 | s = """\r |
| 313 | for b in r:\r |
| 314 | for (a,) in b:\r |
| 315 | pass"""\r |
| 316 | self.assertTrue(self.find_binding("a", s))\r |
| 317 | \r |
| 318 | s = """\r |
| 319 | for b in r:\r |
| 320 | for c, (a, d) in b:\r |
| 321 | pass"""\r |
| 322 | self.assertTrue(self.find_binding("a", s))\r |
| 323 | \r |
| 324 | s = """\r |
| 325 | for b in r:\r |
| 326 | for c in b:\r |
| 327 | a = 7"""\r |
| 328 | self.assertTrue(self.find_binding("a", s))\r |
| 329 | \r |
| 330 | s = """\r |
| 331 | for b in r:\r |
| 332 | for c in b:\r |
| 333 | d = a"""\r |
| 334 | self.assertFalse(self.find_binding("a", s))\r |
| 335 | \r |
| 336 | s = """\r |
| 337 | for b in r:\r |
| 338 | for c in a:\r |
| 339 | d = 7"""\r |
| 340 | self.assertFalse(self.find_binding("a", s))\r |
| 341 | \r |
| 342 | def test_if(self):\r |
| 343 | self.assertTrue(self.find_binding("a", "if b in r: a = c"))\r |
| 344 | self.assertFalse(self.find_binding("a", "if a in r: d = e"))\r |
| 345 | \r |
| 346 | def test_if_nested(self):\r |
| 347 | s = """\r |
| 348 | if b in r:\r |
| 349 | if c in d:\r |
| 350 | a = c"""\r |
| 351 | self.assertTrue(self.find_binding("a", s))\r |
| 352 | \r |
| 353 | s = """\r |
| 354 | if b in r:\r |
| 355 | if c in d:\r |
| 356 | c = a"""\r |
| 357 | self.assertFalse(self.find_binding("a", s))\r |
| 358 | \r |
| 359 | def test_while(self):\r |
| 360 | self.assertTrue(self.find_binding("a", "while b in r: a = c"))\r |
| 361 | self.assertFalse(self.find_binding("a", "while a in r: d = e"))\r |
| 362 | \r |
| 363 | def test_while_nested(self):\r |
| 364 | s = """\r |
| 365 | while b in r:\r |
| 366 | while c in d:\r |
| 367 | a = c"""\r |
| 368 | self.assertTrue(self.find_binding("a", s))\r |
| 369 | \r |
| 370 | s = """\r |
| 371 | while b in r:\r |
| 372 | while c in d:\r |
| 373 | c = a"""\r |
| 374 | self.assertFalse(self.find_binding("a", s))\r |
| 375 | \r |
| 376 | def test_try_except(self):\r |
| 377 | s = """\r |
| 378 | try:\r |
| 379 | a = 6\r |
| 380 | except:\r |
| 381 | b = 8"""\r |
| 382 | self.assertTrue(self.find_binding("a", s))\r |
| 383 | \r |
| 384 | s = """\r |
| 385 | try:\r |
| 386 | b = 8\r |
| 387 | except:\r |
| 388 | a = 6"""\r |
| 389 | self.assertTrue(self.find_binding("a", s))\r |
| 390 | \r |
| 391 | s = """\r |
| 392 | try:\r |
| 393 | b = 8\r |
| 394 | except KeyError:\r |
| 395 | pass\r |
| 396 | except:\r |
| 397 | a = 6"""\r |
| 398 | self.assertTrue(self.find_binding("a", s))\r |
| 399 | \r |
| 400 | s = """\r |
| 401 | try:\r |
| 402 | b = 8\r |
| 403 | except:\r |
| 404 | b = 6"""\r |
| 405 | self.assertFalse(self.find_binding("a", s))\r |
| 406 | \r |
| 407 | def test_try_except_nested(self):\r |
| 408 | s = """\r |
| 409 | try:\r |
| 410 | try:\r |
| 411 | a = 6\r |
| 412 | except:\r |
| 413 | pass\r |
| 414 | except:\r |
| 415 | b = 8"""\r |
| 416 | self.assertTrue(self.find_binding("a", s))\r |
| 417 | \r |
| 418 | s = """\r |
| 419 | try:\r |
| 420 | b = 8\r |
| 421 | except:\r |
| 422 | try:\r |
| 423 | a = 6\r |
| 424 | except:\r |
| 425 | pass"""\r |
| 426 | self.assertTrue(self.find_binding("a", s))\r |
| 427 | \r |
| 428 | s = """\r |
| 429 | try:\r |
| 430 | b = 8\r |
| 431 | except:\r |
| 432 | try:\r |
| 433 | pass\r |
| 434 | except:\r |
| 435 | a = 6"""\r |
| 436 | self.assertTrue(self.find_binding("a", s))\r |
| 437 | \r |
| 438 | s = """\r |
| 439 | try:\r |
| 440 | try:\r |
| 441 | b = 8\r |
| 442 | except KeyError:\r |
| 443 | pass\r |
| 444 | except:\r |
| 445 | a = 6\r |
| 446 | except:\r |
| 447 | pass"""\r |
| 448 | self.assertTrue(self.find_binding("a", s))\r |
| 449 | \r |
| 450 | s = """\r |
| 451 | try:\r |
| 452 | pass\r |
| 453 | except:\r |
| 454 | try:\r |
| 455 | b = 8\r |
| 456 | except KeyError:\r |
| 457 | pass\r |
| 458 | except:\r |
| 459 | a = 6"""\r |
| 460 | self.assertTrue(self.find_binding("a", s))\r |
| 461 | \r |
| 462 | s = """\r |
| 463 | try:\r |
| 464 | b = 8\r |
| 465 | except:\r |
| 466 | b = 6"""\r |
| 467 | self.assertFalse(self.find_binding("a", s))\r |
| 468 | \r |
| 469 | s = """\r |
| 470 | try:\r |
| 471 | try:\r |
| 472 | b = 8\r |
| 473 | except:\r |
| 474 | c = d\r |
| 475 | except:\r |
| 476 | try:\r |
| 477 | b = 6\r |
| 478 | except:\r |
| 479 | t = 8\r |
| 480 | except:\r |
| 481 | o = y"""\r |
| 482 | self.assertFalse(self.find_binding("a", s))\r |
| 483 | \r |
| 484 | def test_try_except_finally(self):\r |
| 485 | s = """\r |
| 486 | try:\r |
| 487 | c = 6\r |
| 488 | except:\r |
| 489 | b = 8\r |
| 490 | finally:\r |
| 491 | a = 9"""\r |
| 492 | self.assertTrue(self.find_binding("a", s))\r |
| 493 | \r |
| 494 | s = """\r |
| 495 | try:\r |
| 496 | b = 8\r |
| 497 | finally:\r |
| 498 | a = 6"""\r |
| 499 | self.assertTrue(self.find_binding("a", s))\r |
| 500 | \r |
| 501 | s = """\r |
| 502 | try:\r |
| 503 | b = 8\r |
| 504 | finally:\r |
| 505 | b = 6"""\r |
| 506 | self.assertFalse(self.find_binding("a", s))\r |
| 507 | \r |
| 508 | s = """\r |
| 509 | try:\r |
| 510 | b = 8\r |
| 511 | except:\r |
| 512 | b = 9\r |
| 513 | finally:\r |
| 514 | b = 6"""\r |
| 515 | self.assertFalse(self.find_binding("a", s))\r |
| 516 | \r |
| 517 | def test_try_except_finally_nested(self):\r |
| 518 | s = """\r |
| 519 | try:\r |
| 520 | c = 6\r |
| 521 | except:\r |
| 522 | b = 8\r |
| 523 | finally:\r |
| 524 | try:\r |
| 525 | a = 9\r |
| 526 | except:\r |
| 527 | b = 9\r |
| 528 | finally:\r |
| 529 | c = 9"""\r |
| 530 | self.assertTrue(self.find_binding("a", s))\r |
| 531 | \r |
| 532 | s = """\r |
| 533 | try:\r |
| 534 | b = 8\r |
| 535 | finally:\r |
| 536 | try:\r |
| 537 | pass\r |
| 538 | finally:\r |
| 539 | a = 6"""\r |
| 540 | self.assertTrue(self.find_binding("a", s))\r |
| 541 | \r |
| 542 | s = """\r |
| 543 | try:\r |
| 544 | b = 8\r |
| 545 | finally:\r |
| 546 | try:\r |
| 547 | b = 6\r |
| 548 | finally:\r |
| 549 | b = 7"""\r |
| 550 | self.assertFalse(self.find_binding("a", s))\r |
| 551 | \r |
| 552 | class Test_touch_import(support.TestCase):\r |
| 553 | \r |
| 554 | def test_after_docstring(self):\r |
| 555 | node = parse('"""foo"""\nbar()')\r |
| 556 | fixer_util.touch_import(None, "foo", node)\r |
| 557 | self.assertEqual(str(node), '"""foo"""\nimport foo\nbar()\n\n')\r |
| 558 | \r |
| 559 | def test_after_imports(self):\r |
| 560 | node = parse('"""foo"""\nimport bar\nbar()')\r |
| 561 | fixer_util.touch_import(None, "foo", node)\r |
| 562 | self.assertEqual(str(node), '"""foo"""\nimport bar\nimport foo\nbar()\n\n')\r |
| 563 | \r |
| 564 | def test_beginning(self):\r |
| 565 | node = parse('bar()')\r |
| 566 | fixer_util.touch_import(None, "foo", node)\r |
| 567 | self.assertEqual(str(node), 'import foo\nbar()\n\n')\r |
| 568 | \r |
| 569 | def test_from_import(self):\r |
| 570 | node = parse('bar()')\r |
| 571 | fixer_util.touch_import("html", "escape", node)\r |
| 572 | self.assertEqual(str(node), 'from html import escape\nbar()\n\n')\r |
| 573 | \r |
| 574 | def test_name_import(self):\r |
| 575 | node = parse('bar()')\r |
| 576 | fixer_util.touch_import(None, "cgi", node)\r |
| 577 | self.assertEqual(str(node), 'import cgi\nbar()\n\n')\r |
| 578 | \r |
| 579 | class Test_find_indentation(support.TestCase):\r |
| 580 | \r |
| 581 | def test_nothing(self):\r |
| 582 | fi = fixer_util.find_indentation\r |
| 583 | node = parse("node()")\r |
| 584 | self.assertEqual(fi(node), u"")\r |
| 585 | node = parse("")\r |
| 586 | self.assertEqual(fi(node), u"")\r |
| 587 | \r |
| 588 | def test_simple(self):\r |
| 589 | fi = fixer_util.find_indentation\r |
| 590 | node = parse("def f():\n x()")\r |
| 591 | self.assertEqual(fi(node), u"")\r |
| 592 | self.assertEqual(fi(node.children[0].children[4].children[2]), u" ")\r |
| 593 | node = parse("def f():\n x()\n y()")\r |
| 594 | self.assertEqual(fi(node.children[0].children[4].children[4]), u" ")\r |
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