| from pychecker2.TestSupport import WarningTester |
| from pychecker2 import VariableChecks |
| |
| class UnusedTestCase(WarningTester): |
| def testUnusedBasic(self): |
| self.warning('def f(i, j): return i * 2\n', |
| 1, VariableChecks.UnusedCheck.unused, 'j') |
| self.warning('def _unused(): pass\n', |
| 1, VariableChecks.UnusedCheck.unused, '_unused') |
| self.silent('def f(x):\n' |
| ' def g():\n' |
| ' x.y.z, = 1\n' |
| ' g()\n') |
| |
| def testUnusedAbstract(self): |
| self.silent('def f(i): assert 0\n') |
| self.silent('def f(i): assert None\n') |
| self.silent('def f(i): return\n') |
| self.silent('def f(i): return 7\n') |
| self.silent('def f(i): pass\n') |
| self.silent('def f(i): raise NotImplementedError\n') |
| |
| def testUnusedScopeNotSelf(self): |
| self.silent('class A:\n' |
| ' def f(self, j): return j * 2\n') |
| self.argv = ['--reportUnusedSelf'] |
| self.warning('class A:\n' |
| ' def f(self, j): return j * 2\n', |
| 2, VariableChecks.UnusedCheck.unused, 'self') |
| |
| def testUnusedScope(self): |
| self.warning('class A:\n' |
| ' def f(self, j): return self\n', 2, |
| VariableChecks.UnusedCheck.unused, 'j') |
| self.silent('def f(a, b):\n' |
| ' def g(x):\n' |
| ' return x * a\n' |
| ' return g(b)\n') |
| |
| def testUnusedIgnore(self): |
| self.warning('def f(a, xyzzySilly): return a\n', |
| 1, VariableChecks.UnusedCheck.unused, 'xyzzySilly') |
| self.argv = ['--unusedPrefixes=["xyzzy"]'] |
| self.silent('def f(a, xyzzySilly): return a\n') |
| |
| |
| def testGlobal(self): |
| self.silent('x = 1\ndef f(x=x): return 7\n') |
| self.silent('def f(x):\n' |
| ' global _y\n' |
| ' _y = x\n' |
| 'def g(x): return x + _y\n') |
| |
| def testUnpack(self): |
| w = VariableChecks.UnusedCheck.unused |
| self.silent('_x, _y = 1, 2\n') |
| self.silent('def f(a, (b, c)): print a, b\n') |
| self.silent('def f(a, (b, (c, d))): print a, b\n') |
| |
| self.argv = ['--no-unpackedUsed'] |
| self.warning('_x, _y = 1, 2\n' |
| 'print _x\n', 1, w, '_y') |
| self.warning('def f(a, (b, c)): print a, b\n', 1, w, 'c') |
| self.silent('def f(a):\n' |
| ' "this is an empty function"\n') |
| |
| def testUsedBeforeSet(self): |
| w = VariableChecks.UsedBeforeSetCheck.usedBeforeDefined |
| self.warning('G1 = 1\n' |
| 'def f(L1, (L2, L3)):\n' |
| ' x = 1\n' |
| ' if G1:\n' |
| ' y = 2\n' |
| ' if G1:\n' |
| ' z = 1\n' |
| ' y = 2\n' |
| ' else:\n' |
| ' z = 2\n' |
| ' return L1, L2, L3, x, y, z\n', |
| 11, w, 'y') |
| self.silent('def f():\n' |
| ' import sys\n' |
| ' return sys.argv\n') |
| self.silent('def f():\n' |
| ' from sys import argv\n' |
| ' return argv\n') |
| self.silent('def f():\n' |
| ' from sys import *\n' |
| ' return argv\n') |
| self.silent('def f():\n' |
| ' return [(a, b) for a, b in [(1,2)]]\n') |
| self.silent('def f():\n' |
| ' r = [(a, b) for a, b in [(1,2)]]\n' |
| ' return r, a, b\n') |
| self.silent('import pychecker2.utest\n' |
| 'print pychecker2.utest.data.exceptions.Warning()') |
