OILS
/
osh
/
builtin_lib_test.py
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#!/usr/bin/env python2
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"""
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builtin_lib_test.py: Tests for builtin_lib.py
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"""
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from __future__ import print_function
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import cStringIO
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import unittest
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# We use native/line_input.c, a fork of readline.c, but this is good enough for
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# unit testing
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import readline
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from core import test_lib
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from core import state
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from core import alloc
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from core import ui
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from frontend import flag_def # side effect: flags are defined!
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_ = flag_def
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from osh import builtin_lib # module under test
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class BuiltinTest(unittest.TestCase):
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def testHistoryBuiltin(self):
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test_path = '_tmp/builtin_test_history.txt'
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with open(test_path, 'w') as f:
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f.write("""\
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echo hello
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ls one/
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ls two/
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echo bye
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""")
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readline.read_history_file(test_path)
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# Show all
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f = cStringIO.StringIO()
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out = _TestHistory(['history'])
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self.assertEqual(
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out, """\
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1 echo hello
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2 ls one/
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3 ls two/
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4 echo bye
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""")
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# Show two history items
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out = _TestHistory(['history', '2'])
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# Note: whitespace here is exact
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self.assertEqual(out, """\
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3 ls two/
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4 echo bye
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""")
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# Delete single history item.
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# This functionality is *silent*
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# so call history again after
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# this to feed the test assertion
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_TestHistory(['history', '-d', '4'])
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# Call history
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out = _TestHistory(['history'])
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# Note: whitespace here is exact
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self.assertEqual(
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out, """\
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1 echo hello
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2 ls one/
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3 ls two/
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""")
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# Clear history
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# This functionality is *silent*
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# so call history again after
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# this to feed the test assertion
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_TestHistory(['history', '-c'])
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# Call history
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out = _TestHistory(['history'])
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self.assertEqual(out, """\
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""")
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def _TestHistory(argv):
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f = cStringIO.StringIO()
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arena = alloc.Arena()
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mem = state.Mem('', [], arena, [])
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errfmt = ui.ErrorFormatter()
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b = builtin_lib.History(readline, mem, errfmt, f)
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cmd_val = test_lib.MakeBuiltinArgv(argv)
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b.Run(cmd_val)
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return f.getvalue()
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if __name__ == '__main__':
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unittest.main()
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