def testReadInt64(self):
"""Asserts that longs are read correctly.
"""
number = 68719476836
self.stream = MockStream.concat_int64(self.stream, number)
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertEqual(number, p.ReadInt64())
self.stream = MockStream(format='>')
self.stream = MockStream.concat_int64(self.stream, number)
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertEqual(number, p.ReadInt64())
def testLittleEndiannessInitialization(self):
"""Tests parser init with little-endian byte order.
Verifies that the byte-order is correctly detected.
"""
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertEqual(p.format, '<')
def testBigEndiannessInitialization(self):
"""Tests parser init with big-endian byte order.
Verifies that the byte-order is correctly detected.
"""
self.stream = MockStream(format='>')
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertEqual(p.format, '>')
def testReadStringNormal(self):
"""Asserts that strings are correctly read from the stream.
Tests the normal case--when the string is correctly formatted.
"""
test_string = "This is a test."
self.stream = MockStream.concat_string(self.stream, test_string)
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertEqual(p.ReadString(), test_string)
def testReadIntNormal(self):
"""Asserts that integers are correctly read from the stream.
Tests the normal case--when the value is actually an integer.
"""
integer = 2016
self.stream = MockStream.concat_int(self.stream, integer)
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertEqual(p.ReadInt(), integer)
def testReadStringError(self):
"""Asserts that invalid string format raises error.
Tests when the string length is too short and EOF is reached.
"""
test_string = "This is a test."
byte_count = len(test_string)
word_count = int(round(byte_count / 4.0))
padding = '\x00' * (4 * word_count - byte_count)
test_string_padded = test_string + padding
content = struct.pack('<I', word_count + 1) # will cause EOF error
content += bytes(test_string_padded)
self.stream.content += content
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertRaises(parser.FileFormatError, p.ReadString)
def testReadIntEof(self):
"""Asserts that an error is thrown when the EOF is reached.
"""
p = parser.GcovStreamParserUtil(self.stream, MAGIC)
self.assertRaises(parser.FileFormatError, p.ReadInt)