How to use the fileseq.FileSequence function in Fileseq

def testSerialization(self):
        fs = FileSequence("/path/to/file.1-100x2#.exr")
        s = pickle.dumps(fs, pickle.HIGHEST_PROTOCOL)
        fs2 = pickle.loads(s)
        self.assertEquals(str(fs), str(fs2))
        self.assertEquals(len(fs), len(fs2))

        fs = FileSequence("/path/to/file.1-100x2%04d.exr")
        s = pickle.dumps(fs, pickle.HIGHEST_PROTOCOL)
        fs2 = pickle.loads(s)
        self.assertEquals(str(fs), str(fs2))
        self.assertEquals(len(fs), len(fs2))

def testSeqGettersPrintf(self):
        seq = FileSequence("/foo/boo.1-5%04d.exr")
        self.assertEquals(5, len(seq))
        self.assertEquals("/foo/", seq.dirname())
        self.assertEquals("boo.", seq.basename())
        self.assertEquals("%04d", seq.padding())
        self.assertEquals(".exr", seq.extension())

        self.assertEquals("/foo/boo.9999.exr", seq.frame(9999))
        self.assertEquals("/foo/boo.0001.exr", seq[0])
        self.assertEquals("/foo/boo.0001.exr", seq.index(0))

def testSplitXY(self):
        seqs = FileSequence("/cheech/0-9x1/chong.1-10#.exr")
        self.assertEquals("/cheech/0-9x1/chong.0001.exr", seqs.index(0))

def testSeqGettersHoudini(self):
        seq = FileSequence("/foo/boo.1-5$F.exr")
        self.assertEquals(5, len(seq))
        self.assertEquals("/foo/", seq.dirname())
        self.assertEquals("boo.", seq.basename())
        self.assertEquals("$F", seq.padding())
        self.assertEquals(".exr", seq.extension())

        self.assertEquals("/foo/boo.9999.exr", seq.frame(9999))
        self.assertEquals("/foo/boo.1.exr", seq[0])
        self.assertEquals("/foo/boo.1.exr", seq.index(0))

def testFrame(self):
        seq = FileSequence("/foo/bar/bing.#.exr")
        self.assertEquals("/foo/bar/bing.0001.exr", seq.frame(1))
        self.assertNativeStr(seq.frame(1))
        self.assertEquals("/foo/bar/bing.#.exr", seq.frame("#"))
        self.assertNativeStr(seq.frame("#"))

        seq = FileSequence("/foo/bar/bing.%04d.exr")
        self.assertEquals("/foo/bar/bing.0001.exr", seq.frame(1))
        self.assertEquals("/foo/bar/bing.%04d.exr", seq.frame("%04d"))

def testSetFrameSet(self):
        seq = FileSequence("/cheech/chong.1-5#.exr")
        seq.setFrameSet(FrameSet("10-20"))
        self.assertEquals("/cheech/chong.10-20#.exr", str(seq))

def testNativeStr(self):
        seq = FileSequence("/foo/boo.1-5#.exr")
        self.assertNativeStr(seq.dirname())
        self.assertNativeStr(seq.basename())
        self.assertNativeStr(seq.padding())
        self.assertNativeStr(seq.extension())
        self.assertNativeStr(seq.extension())
        self.assertNativeStr(seq.format('{basename}'))
        self.assertNativeStr(seq.frame(1))
        self.assertNativeStr(seq.frameRange())
        self.assertNativeStr(seq.index(1))
        self.assertNativeStr(seq.invertedFrameRange())

        self.assertNativeStr(FileSequence.conformPadding('#'))
        self.assertNativeStr(FileSequence.getPaddingChars(4))

def testEmptyBasename(self):
        seq = FileSequence("/path/to/1-5#.exr")
        self.assertEquals(seq.basename(), "")
        self.assertEquals(len(seq), 5)
        self.assertEquals(seq.padding(), '#')

        seq = FileSequence("/path/to/1-5%04d.exr")
        self.assertEquals(seq.basename(), "")
        self.assertEquals(len(seq), 5)
        self.assertEquals(seq.padding(), '%04d')

        seq = FileSequence("/path/to/1-5$F4.exr")
        self.assertEquals(seq.basename(), "")
        self.assertEquals(len(seq), 5)
        self.assertEquals(seq.padding(), "$F4")

def testSetBasename(self):
        seq = FileSequence("/foo/bong.1-5@.exr")
        seq.setBasename("bar.")
        self.assertEquals("/foo/bar.1.exr", seq[0])