def test_GIVEN_a_block_with_an_arbitrary_object_as_its_value_THEN_when_formatted_to_prec_3_it_is_returned_unchanged(
self):
value = object()
expected_formatted_value = str(value)
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_a_block_with_a_number_that_does_not_fit_in_a_float_WHEN_formatted_to_prec_3_THEN_it_is_formatted_as_infinity(
self):
value = "5" * 10000
expected_formatted_value = "INF"
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_a_block_with_a_large_negative_value_WHEN_formatted_to_prec_3_THEN_it_is_returned_in_exponential_notation_to_3_sf(
self):
value = "-12340000000000000"
expected_formatted_value = "-1.23E+16"
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_a_block_with_a_negative_INF_value_WHEN_formatted_to_prec_3_THEN_it_is_returned_unchanged(
self):
value = "-INF"
expected_formatted_value = value
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_a_block_with_a_medium_size_negative_value_WHEN_formatted_to_prec_3_THEN_it_is_returned_to_3_dp(
self):
value = "-327"
expected_formatted_value = "-327.000"
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_a_block_with_a_small_negative_value_WHEN_formatted_to_prec_3_THEN_it_is_returned_in_exponential_notation_to_3_sf(
self):
value = "-0.0000000567"
expected_formatted_value = "-5.67E-08"
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_a_block_with_a_medium_size_value_THEN_when_formatted_to_prec_0_THEN_it_is_returned_unchanged(
self):
value = "327"
expected_formatted_value = value
self.assertEqual(format_block_value(value, 0),
expected_formatted_value)
def test_GIVEN_a_block_with_a_zero_value_WHEN_formatted_with_prec_3_THEN_it_is_returned_to_3_dp(
self):
value = "0.0"
expected_formatted_value = "0.000"
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_a_block_with_a_non_numeric_value_WHEN_formatted_with_no_prec_THEN_it_is_returned_unchanged(
self):
value = "this is a string"
expected_formatted_value = value
self.assertEqual(format_block_value(value, None),
expected_formatted_value)
def get_description(self):
""" Returns the full description of this BoolStr object. """
if self.should_format_value():
value = format_block_value(self.value, self.precision)
else:
value = self.value
if self.units == u"":
formatted_value = u"{}".format(value)
else:
formatted_value = u"{value} {units}".format(value=value, units=self.units)
ans = {
"status": self.status,
"value": formatted_value,
"alarm": self.alarm,
"visibility": self.visibility
}
if RETURN_RC_VALUES:
# add rc values if they're set
if self.low is not None:
ans["rc_low"] = self.low
if self.high is not None:
ans["rc_high"] = self.high
if self.inrange is not None:
ans["rc_inrange"] = self.inrange
ans["rc_enabled"] = self.enabled
return ans
def test_GIVEN_a_block_with_a_negative_zero_value_WHEN_formatted_to_prec_3_THEN_it_is_returned_to_3_dp(
self):
# Python does have a concept of "-0" so this is a test worth doing.
value = "-0.0"
expected_formatted_value = "-0.000"
self.assertEqual(format_block_value(value, 3),
expected_formatted_value)
def test_GIVEN_nonsense_precision_containing_unicode_WHEN_formatting_THEN_original_value_returned_unchanged(
self):
precision = u"ƀ Ɓ Ƃ ƃ Ƅ ƅ Ɔ Ƈ ƈ Ɖ Ɗ Ƌ ƌ ƍ Ǝ Ə Ɛ Ƒ ƒ Ɠ Ɣ ƕ Ɩ Ɨ Ƙ ƙ ƚ ƛ Ɯ Ɲ ƞ Ɵ Ơ ơ Ƣ ƣ Ƥ ƥ Ʀ Ƨ ƨ Ʃ ƪ ƫ Ƭ ƭ Ʈ"
value = "12.345"
self.assertEqual(format_block_value(value, precision), value)
def test_GIVEN_nonsense_precision_WHEN_formatting_THEN_original_value_returned_unchanged(
self):
precision = "this is clearly not a valid precision"
value = "12.345"
self.assertEqual(format_block_value(value, precision), value)
def test_GIVEN_negative_precision_WHEN_formatting_THEN_original_value_returned_unchanged(
self):
precision = -57
value = "12.345"
self.assertEqual(format_block_value(value, precision), value)
def test_GIVEN_arbitrary_object_as_precision_WHEN_formatting_THEN_original_value_returned_unchanged(
self):
precision = object()
value = "12.345"
self.assertEqual(format_block_value(value, precision), value)
