1. Konrad Delong
  2. pypy

Commits

Armin Rigo  committed 90e8b07

Fix for the precise expected repr() of built-in methods.

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File lib-python/modified-2.7.0/test/test_repr.py

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+"""
+  Test cases for the repr module
+  Nick Mathewson
+"""
+
+import sys
+import os
+import shutil
+import unittest
+
+from test.test_support import run_unittest, check_py3k_warnings
+from test.test_support import check_impl_detail
+from repr import repr as r # Don't shadow builtin repr
+from repr import Repr
+
+
+def nestedTuple(nesting):
+    t = ()
+    for i in range(nesting):
+        t = (t,)
+    return t
+
+class ReprTests(unittest.TestCase):
+
+    def test_string(self):
+        eq = self.assertEquals
+        eq(r("abc"), "'abc'")
+        eq(r("abcdefghijklmnop"),"'abcdefghijklmnop'")
+
+        s = "a"*30+"b"*30
+        expected = repr(s)[:13] + "..." + repr(s)[-14:]
+        eq(r(s), expected)
+
+        eq(r("\"'"), repr("\"'"))
+        s = "\""*30+"'"*100
+        expected = repr(s)[:13] + "..." + repr(s)[-14:]
+        eq(r(s), expected)
+
+    def test_tuple(self):
+        eq = self.assertEquals
+        eq(r((1,)), "(1,)")
+
+        t3 = (1, 2, 3)
+        eq(r(t3), "(1, 2, 3)")
+
+        r2 = Repr()
+        r2.maxtuple = 2
+        expected = repr(t3)[:-2] + "...)"
+        eq(r2.repr(t3), expected)
+
+    def test_container(self):
+        from array import array
+        from collections import deque
+
+        eq = self.assertEquals
+        # Tuples give up after 6 elements
+        eq(r(()), "()")
+        eq(r((1,)), "(1,)")
+        eq(r((1, 2, 3)), "(1, 2, 3)")
+        eq(r((1, 2, 3, 4, 5, 6)), "(1, 2, 3, 4, 5, 6)")
+        eq(r((1, 2, 3, 4, 5, 6, 7)), "(1, 2, 3, 4, 5, 6, ...)")
+
+        # Lists give up after 6 as well
+        eq(r([]), "[]")
+        eq(r([1]), "[1]")
+        eq(r([1, 2, 3]), "[1, 2, 3]")
+        eq(r([1, 2, 3, 4, 5, 6]), "[1, 2, 3, 4, 5, 6]")
+        eq(r([1, 2, 3, 4, 5, 6, 7]), "[1, 2, 3, 4, 5, 6, ...]")
+
+        # Sets give up after 6 as well
+        eq(r(set([])), "set([])")
+        eq(r(set([1])), "set([1])")
+        eq(r(set([1, 2, 3])), "set([1, 2, 3])")
+        eq(r(set([1, 2, 3, 4, 5, 6])), "set([1, 2, 3, 4, 5, 6])")
+        eq(r(set([1, 2, 3, 4, 5, 6, 7])), "set([1, 2, 3, 4, 5, 6, ...])")
+
+        # Frozensets give up after 6 as well
+        eq(r(frozenset([])), "frozenset([])")
+        eq(r(frozenset([1])), "frozenset([1])")
+        eq(r(frozenset([1, 2, 3])), "frozenset([1, 2, 3])")
+        eq(r(frozenset([1, 2, 3, 4, 5, 6])), "frozenset([1, 2, 3, 4, 5, 6])")
+        eq(r(frozenset([1, 2, 3, 4, 5, 6, 7])), "frozenset([1, 2, 3, 4, 5, 6, ...])")
+
+        # collections.deque after 6
+        eq(r(deque([1, 2, 3, 4, 5, 6, 7])), "deque([1, 2, 3, 4, 5, 6, ...])")
+
+        # Dictionaries give up after 4.
+        eq(r({}), "{}")
+        d = {'alice': 1, 'bob': 2, 'charles': 3, 'dave': 4}
+        eq(r(d), "{'alice': 1, 'bob': 2, 'charles': 3, 'dave': 4}")
+        d['arthur'] = 1
+        eq(r(d), "{'alice': 1, 'arthur': 1, 'bob': 2, 'charles': 3, ...}")
+
+        # array.array after 5.
+        eq(r(array('i')), "array('i', [])")
+        eq(r(array('i', [1])), "array('i', [1])")
+        eq(r(array('i', [1, 2])), "array('i', [1, 2])")
+        eq(r(array('i', [1, 2, 3])), "array('i', [1, 2, 3])")
+        eq(r(array('i', [1, 2, 3, 4])), "array('i', [1, 2, 3, 4])")
+        eq(r(array('i', [1, 2, 3, 4, 5])), "array('i', [1, 2, 3, 4, 5])")
+        eq(r(array('i', [1, 2, 3, 4, 5, 6])),
+                   "array('i', [1, 2, 3, 4, 5, ...])")
+
+    def test_numbers(self):
+        eq = self.assertEquals
+        eq(r(123), repr(123))
+        eq(r(123L), repr(123L))
+        eq(r(1.0/3), repr(1.0/3))
+
+        n = 10L**100
+        expected = repr(n)[:18] + "..." + repr(n)[-19:]
+        eq(r(n), expected)
+
+    def test_instance(self):
+        eq = self.assertEquals
+        i1 = ClassWithRepr("a")
+        eq(r(i1), repr(i1))
+
+        i2 = ClassWithRepr("x"*1000)
+        expected = repr(i2)[:13] + "..." + repr(i2)[-14:]
+        eq(r(i2), expected)
+
+        i3 = ClassWithFailingRepr()
+        eq(r(i3), ("<ClassWithFailingRepr instance at %x>"%id(i3)))
+
+        s = r(ClassWithFailingRepr)
+        self.assertTrue(s.startswith("<class "))
+        self.assertTrue(s.endswith(">"))
+        self.assertTrue(s.find("...") == 8)
+
+    def test_file(self):
+        fp = open(unittest.__file__)
+        self.assertTrue(repr(fp).startswith(
+            "<open file '%s', mode 'r' at 0x" % unittest.__file__))
+        fp.close()
+        self.assertTrue(repr(fp).startswith(
+            "<closed file '%s', mode 'r' at 0x" % unittest.__file__))
+
+    def test_lambda(self):
+        self.assertTrue(repr(lambda x: x).startswith(
+            "<function <lambda"))
+        # XXX anonymous functions?  see func_repr
+
+    def test_builtin_function(self):
+        eq = self.assertEquals
+        # Functions
+        eq(repr(hash), '<built-in function hash>')
+        # Methods
+        if check_impl_detail(cpython=True):
+            self.assertTrue(repr(''.split).startswith(
+                '<built-in method split of str object at 0x'))
+        elif check_impl_detail(pypy=True):
+            eq(repr(''.split), "<bound method str.split of ''>")
+
+    def test_xrange(self):
+        eq = self.assertEquals
+        eq(repr(xrange(1)), 'xrange(1)')
+        eq(repr(xrange(1, 2)), 'xrange(1, 2)')
+        eq(repr(xrange(1, 2, 3)), 'xrange(1, 4, 3)')
+
+    def test_nesting(self):
+        eq = self.assertEquals
+        # everything is meant to give up after 6 levels.
+        eq(r([[[[[[[]]]]]]]), "[[[[[[[]]]]]]]")
+        eq(r([[[[[[[[]]]]]]]]), "[[[[[[[...]]]]]]]")
+
+        eq(r(nestedTuple(6)), "(((((((),),),),),),)")
+        eq(r(nestedTuple(7)), "(((((((...),),),),),),)")
+
+        eq(r({ nestedTuple(5) : nestedTuple(5) }),
+           "{((((((),),),),),): ((((((),),),),),)}")
+        eq(r({ nestedTuple(6) : nestedTuple(6) }),
+           "{((((((...),),),),),): ((((((...),),),),),)}")
+
+        eq(r([[[[[[{}]]]]]]), "[[[[[[{}]]]]]]")
+        eq(r([[[[[[[{}]]]]]]]), "[[[[[[[...]]]]]]]")
+
+    def test_buffer(self):
+        # XXX doesn't test buffers with no b_base or read-write buffers (see
+        # bufferobject.c).  The test is fairly incomplete too.  Sigh.
+        with check_py3k_warnings():
+            x = buffer('foo')
+        self.assertTrue(repr(x).startswith('<read-only buffer for 0x'))
+
+    def test_cell(self):
+        # XXX Hmm? How to get at a cell object?
+        pass
+
+    def test_descriptors(self):
+        eq = self.assertEquals
+        # method descriptors
+        if check_impl_detail(cpython=True):
+            eq(repr(dict.items), "<method 'items' of 'dict' objects>")
+        elif check_impl_detail(pypy=True):
+            eq(repr(dict.items), "<unbound method dict.items>")
+        # XXX member descriptors
+        # XXX attribute descriptors
+        # XXX slot descriptors
+        # static and class methods
+        class C:
+            def foo(cls): pass
+        x = staticmethod(C.foo)
+        self.assertTrue(repr(x).startswith('<staticmethod object at 0x'))
+        x = classmethod(C.foo)
+        self.assertTrue(repr(x).startswith('<classmethod object at 0x'))
+
+    def test_unsortable(self):
+        # Repr.repr() used to call sorted() on sets, frozensets and dicts
+        # without taking into account that not all objects are comparable
+        x = set([1j, 2j, 3j])
+        y = frozenset(x)
+        z = {1j: 1, 2j: 2}
+        r(x)
+        r(y)
+        r(z)
+
+def touch(path, text=''):
+    fp = open(path, 'w')
+    fp.write(text)
+    fp.close()
+
+class LongReprTest(unittest.TestCase):
+    def setUp(self):
+        longname = 'areallylongpackageandmodulenametotestreprtruncation'
+        self.pkgname = os.path.join(longname)
+        self.subpkgname = os.path.join(longname, longname)
+        # Make the package and subpackage
+        shutil.rmtree(self.pkgname, ignore_errors=True)
+        os.mkdir(self.pkgname)
+        touch(os.path.join(self.pkgname, '__init__'+os.extsep+'py'))
+        shutil.rmtree(self.subpkgname, ignore_errors=True)
+        os.mkdir(self.subpkgname)
+        touch(os.path.join(self.subpkgname, '__init__'+os.extsep+'py'))
+        # Remember where we are
+        self.here = os.getcwd()
+        sys.path.insert(0, self.here)
+
+    def tearDown(self):
+        actions = []
+        for dirpath, dirnames, filenames in os.walk(self.pkgname):
+            for name in dirnames + filenames:
+                actions.append(os.path.join(dirpath, name))
+        actions.append(self.pkgname)
+        actions.sort()
+        actions.reverse()
+        for p in actions:
+            if os.path.isdir(p):
+                os.rmdir(p)
+            else:
+                os.remove(p)
+        del sys.path[0]
+
+    def test_module(self):
+        eq = self.assertEquals
+        touch(os.path.join(self.subpkgname, self.pkgname + os.extsep + 'py'))
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import areallylongpackageandmodulenametotestreprtruncation
+        eq(repr(areallylongpackageandmodulenametotestreprtruncation),
+           "<module '%s' from '%s'>" % (areallylongpackageandmodulenametotestreprtruncation.__name__, areallylongpackageandmodulenametotestreprtruncation.__file__))
+        eq(repr(sys), "<module 'sys' (built-in)>")
+
+    def test_type(self):
+        eq = self.assertEquals
+        touch(os.path.join(self.subpkgname, 'foo'+os.extsep+'py'), '''\
+class foo(object):
+    pass
+''')
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import foo
+        eq(repr(foo.foo),
+               "<class '%s.foo'>" % foo.__name__)
+
+    def test_object(self):
+        # XXX Test the repr of a type with a really long tp_name but with no
+        # tp_repr.  WIBNI we had ::Inline? :)
+        pass
+
+    def test_class(self):
+        touch(os.path.join(self.subpkgname, 'bar'+os.extsep+'py'), '''\
+class bar:
+    pass
+''')
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import bar
+        # Module name may be prefixed with "test.", depending on how run.
+        self.assertTrue(repr(bar.bar).startswith(
+            "<class %s.bar at 0x" % bar.__name__))
+
+    def test_instance(self):
+        touch(os.path.join(self.subpkgname, 'baz'+os.extsep+'py'), '''\
+class baz:
+    pass
+''')
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import baz
+        ibaz = baz.baz()
+        self.assertTrue(repr(ibaz).startswith(
+            "<%s.baz instance at 0x" % baz.__name__))
+
+    def test_method(self):
+        eq = self.assertEquals
+        touch(os.path.join(self.subpkgname, 'qux'+os.extsep+'py'), '''\
+class aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:
+    def amethod(self): pass
+''')
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import qux
+        # Unbound methods first
+        eq(repr(qux.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.amethod),
+        '<unbound method aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.amethod>')
+        # Bound method next
+        iqux = qux.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()
+        self.assertTrue(repr(iqux.amethod).startswith(
+            '<bound method aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.amethod of <%s.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa instance at 0x' \
+            % (qux.__name__,) ))
+
+    def test_builtin_function(self):
+        # XXX test built-in functions and methods with really long names
+        pass
+
+class ClassWithRepr:
+    def __init__(self, s):
+        self.s = s
+    def __repr__(self):
+        return "ClassWithLongRepr(%r)" % self.s
+
+
+class ClassWithFailingRepr:
+    def __repr__(self):
+        raise Exception("This should be caught by Repr.repr_instance")
+
+
+def test_main():
+    run_unittest(ReprTests)
+    run_unittest(LongReprTest)
+
+
+if __name__ == "__main__":
+    test_main()