#!/usr/bin/python

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"""Unit tests for array_stream.py."""

import pdb

import unittest

from webkitpy.common.array_stream import ArrayStream

class ArrayStreamTest(unittest.TestCase):

    def assertEmpty(self, a_stream):

        self.assertTrue(a_stream.empty())

    def assertNotEmpty(self, a_stream):

        self.assertFalse(a_stream.empty())

    def assertContentsMatch(self, a_stream, contents):

        self.assertEquals(a_stream.get(), contents)

    def test_basics(self):

        a = ArrayStream()

        self.assertEmpty(a)

        self.assertContentsMatch(a, [])

        a.flush()

        self.assertEmpty(a)

        self.assertContentsMatch(a, [])

        a.write("foo")

        a.write("bar")

        self.assertNotEmpty(a)

        self.assertContentsMatch(a, ["foo", "bar"])

        a.flush()

        self.assertNotEmpty(a)

        self.assertContentsMatch(a, ["foo", "bar"])

        a.reset()

        self.assertEmpty(a)

        self.assertContentsMatch(a, [])

        self.assertEquals(str(a), "<ArrayStream: []>")

        a.write("foo")

        self.assertNotEmpty(a)

        self.assertContentsMatch(a, ["foo"])

        self.assertEquals(str(a), "<ArrayStream: ['foo']>")

if __name__ == '__main__':

    unittest.main()