def testFourDimensions(self):
"""Test TruthTable behavior for four boolean inputs."""
false1 = (True, True, True, False)
false2 = (True, False, True, False)
true1 = (False, True, False, True)
true2 = (True, True, False, False)
tt = cros_test_lib.TruthTable(inputs=(false1, false2), input_result=False)
self.assertEquals(len(tt), pow(2, 4))
# Check truth table output.
self.assertFalse(tt.GetOutput(false1))
self.assertFalse(tt.GetOutput(false2))
self.assertTrue(tt.GetOutput(true1))
self.assertTrue(tt.GetOutput(true2))
# Check assertions on bad input to GetOutput.
self.assertRaises(TypeError, tt.GetOutput, True)
self.assertRaises(ValueError, tt.GetOutput, (True, True, True))
# Check iteration over input lines.
lines = list(tt)
self.assertEquals((False, False, False, False), lines[0])
self.assertEquals((False, False, False, True), lines[1])
self.assertEquals((False, True, True, True), lines[7])
self.assertEquals((True, True, True, True), lines[15])
self._TestTableSanity(tt, lines)
def testDualEnableSetting(self):
settings = {
'prebuilts': 'ShouldUploadPrebuilts',
'postsync_patch': 'ShouldPatchAfterSync',
}
# Both option and config enabled should result in True.
# Create truth table with three variables in this order:
# <key> option value, <key> config value (e.g. <key> == 'prebuilts').
truth_table = cros_test_lib.TruthTable(inputs=[(True, True)])
for inputs in truth_table:
option_val, config_val = inputs
for key, accessor in settings.iteritems():
self.assertEquals(
self._RunAccessor(accessor, {key: option_val},
{key: config_val}),
truth_table.GetOutput(inputs))
def testShouldReexecAfterSync(self):
# If option and config have postsync_reexec enabled, and this file is not
# in the build root, then we expect ShouldReexecAfterSync to return True.
# Construct a truth table across three variables in this order:
# postsync_reexec option value, postsync_reexec config value, same_root.
truth_table = cros_test_lib.TruthTable(inputs=[(True, True, False)])
for inputs in truth_table:
option_val, config_val, same_root = inputs
if same_root:
build_root = os.path.dirname(os.path.dirname(__file__))
else:
build_root = DEFAULT_BUILDROOT
result = self._RunAccessor('ShouldReexecAfterSync', {
'postsync_reexec': option_val,
'buildroot': build_root
}, {'postsync_reexec': config_val})
self.assertEquals(result, truth_table.GetOutput(inputs))
def testTwoDimensions(self):
"""Test TruthTable behavior for two boolean inputs."""
tt = cros_test_lib.TruthTable(inputs=[(True, True), (True, False)])
self.assertEquals(len(tt), pow(2, 2))
# Check truth table output.
self.assertFalse(tt.GetOutput((False, False)))
self.assertFalse(tt.GetOutput((False, True)))
self.assertTrue(tt.GetOutput((True, False)))
self.assertTrue(tt.GetOutput((True, True)))
# Check assertions on bad input to GetOutput.
self.assertRaises(TypeError, tt.GetOutput, True)
self.assertRaises(ValueError, tt.GetOutput, (True, True, True))
# Check iteration over input lines.
lines = list(tt)
self.assertEquals((False, False), lines[0])
self.assertEquals((False, True), lines[1])
self.assertEquals((True, False), lines[2])
self.assertEquals((True, True), lines[3])
self._TestTableSanity(tt, lines)