64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
import unittest
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import sys
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import os.path
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sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
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from Expression import Expression, Context
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class TestContext(unittest.TestCase):
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"""
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Unit tests for the Context class
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"""
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def setUp(self):
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self.c = Context()
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self.c['FAIL'] = 'PASS'
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def test_string_literal(self):
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"""test string literal, fall-through for undefined var in a Context"""
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self.assertEqual(self.c['PASS'], 'PASS')
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def test_variable(self):
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"""test value for defined var in the Context class"""
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self.assertEqual(self.c['FAIL'], 'PASS')
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def test_in(self):
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"""test 'var in context' to not fall for fallback"""
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self.assert_('FAIL' in self.c)
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self.assert_('PASS' not in self.c)
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class TestExpression(unittest.TestCase):
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"""
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Unit tests for the Expression class
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evaluate() is called with a context {FAIL: 'PASS'}
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"""
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def setUp(self):
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self.c = Context()
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self.c['FAIL'] = 'PASS'
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def test_string_literal(self):
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"""Test for a string literal in an Expression"""
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self.assertEqual(Expression('PASS').evaluate(self.c), 'PASS')
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def test_variable(self):
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"""Test for variable value in an Expression"""
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self.assertEqual(Expression('FAIL').evaluate(self.c), 'PASS')
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def test_not(self):
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"""Test for the ! operator"""
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self.assert_(Expression('!0').evaluate(self.c))
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self.assert_(not Expression('!1').evaluate(self.c))
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def test_equals(self):
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""" Test for the == operator"""
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self.assert_(Expression('FAIL == PASS').evaluate(self.c))
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def test_notequals(self):
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""" Test for the != operator"""
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self.assert_(Expression('FAIL != 1').evaluate(self.c))
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if __name__ == '__main__':
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unittest.main()
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