test_closeable.py

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#   you may not use this file except in compliance with the License.
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#       http://www.apache.org/licenses/LICENSE-2.0
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import jpype
import common


class CloseableTestCase(common.JPypeTestCase):

    def setUp(self):
        common.JPypeTestCase.setUp(self)

    def testCloseable(self):
        CloseableTest = jpype.JClass("jpype.closeable.CloseableTest")
        CloseableTest.reset()
        self.assertFalse(CloseableTest.closed)
        with CloseableTest() as myFile:
            myFile.print_("hello 1")
        self.assertEqual(CloseableTest.printed, "hello 1")
        self.assertTrue(CloseableTest.closed)

    def testCloseableFail(self):
        CloseableTest = jpype.JClass("jpype.closeable.CloseableTest")
        CloseableTest.reset()
        CloseableTest.willfail = True
        self.assertFalse(CloseableTest.closed)
        ex1 = None
        try:
            with CloseableTest() as myFile:
                myFile.print_("hello 1")
                try:
                    raise Exception('foo')
                except Exception as ex:
                    pass
        except Exception as ex:
            ex1 = ex
        self.assertTrue(ex1)
        self.assertEqual(CloseableTest.printed, "hello 1")
        self.assertTrue(CloseableTest.closed)

    def testCloseablePyExcept(self):
        CloseableTest = jpype.JClass("jpype.closeable.CloseableTest")
        CloseableTest.reset()
        self.assertFalse(CloseableTest.closed)
        try:
            with CloseableTest() as myFile:
                myFile.print_("hello 2")
                raise TypeError("Python exception")
                myFile.print_("there")
        except Exception as ex:
            self.assertIsInstance(ex, TypeError)
        self.assertEqual(CloseableTest.printed, "hello 2")
        self.assertTrue(CloseableTest.closed)

    def testCloseablePyExceptFail(self):
        CloseableTest = jpype.JClass("jpype.closeable.CloseableTest")
        CloseableTest.reset()
        CloseableTest.willfail = True
        self.assertFalse(CloseableTest.closed)
        try:
            with CloseableTest() as myFile:
                myFile.print_("hello 3")
                raise TypeError("Python exception")
                myFile.print_("there")
        except TypeError as ex:
            self.assertIsInstance(ex, TypeError)
        self.assertEqual(CloseableTest.printed, "hello 3")
        self.assertTrue(CloseableTest.closed)
        self.assertTrue(CloseableTest.failed)

    def testCloseableJExcept(self):
        CloseableTest = jpype.JClass("jpype.closeable.CloseableTest")
        CloseableTest.reset()
        self.assertFalse(CloseableTest.closed)
        try:
            with CloseableTest() as myFile:
                myFile.print_("hello 4")
                myFile.throwException()
                myFile.print_("there")
        except Exception as ex:
            self.assertIsInstance(ex, jpype.JException,
                                  'type is %s' % type(ex))
            self.assertEqual(ex.getMessage(), 'oh no!')
        self.assertEqual(CloseableTest.printed, "hello 4")
        self.assertTrue(CloseableTest.closed)

    def testCloseableJExceptFail(self):
        CloseableTest = jpype.JClass("jpype.closeable.CloseableTest")
        CloseableTest.reset()
        CloseableTest.willfail = True
        self.assertFalse(CloseableTest.closed)
        try:
            with CloseableTest() as myFile:
                myFile.print_("hello 5")
                myFile.throwException()
                myFile.print_("there")
        except Exception as ex:
            self.assertIsInstance(ex, jpype.JException,
                                  'type is %s' % type(ex))
            self.assertEqual(ex.getMessage(), 'oh no!')  # fail if get "oh my?"
        self.assertEqual(CloseableTest.printed, "hello 5")
        self.assertTrue(CloseableTest.closed)
        self.assertTrue(CloseableTest.failed)

    def testCloseableAttr(self):
        cls = jpype.JClass("java.io.Closeable")
        self.assertTrue(hasattr(cls, '__enter__'))
        self.assertTrue(hasattr(cls, '__exit__'))

    def testAutoCloseableAttr(self):
        cls = jpype.JClass("java.lang.AutoCloseable")
        self.assertTrue(hasattr(cls, '__enter__'))
        self.assertTrue(hasattr(cls, '__exit__'))