From 37a4d0dbeb9a92b959edfb9b1aceba4eaacf9f78 Mon Sep 17 00:00:00 2001

From: Alex Panov <thealexpanov@gmail.com>

Date: Sun, 15 May 2016 23:36:18 -0400

Subject: [PATCH] Add boolean matchers

---

 README.rst                                         |  5 ++++

 src/hamcrest/library/__init__.py                   |  3 ++

 src/hamcrest/library/bool/__init__.py              |  1 +

 src/hamcrest/library/bool/bool_comparison.py       | 22 ++++++++++++++

 tests/hamcrest_unit_test/bool/__init__.py          |  0

 .../bool/bool_comparison_test.py                   | 34 ++++++++++++++++++++++

 6 files changed, 65 insertions(+)

 create mode 100644 src/hamcrest/library/bool/__init__.py

 create mode 100644 src/hamcrest/library/bool/bool_comparison.py

 create mode 100644 tests/hamcrest_unit_test/bool/__init__.py

 create mode 100644 tests/hamcrest_unit_test/bool/bool_comparison_test.py

diff --git a/README.rst b/README.rst

index 8ef46bb..d2200f8 100644

--- a/README.rst

+++ b/README.rst

@@ -148,6 +148,11 @@ PyHamcrest comes with a library of useful matchers:

   * ``greater_than``, ``greater_than_or_equal_to``, ``less_than``,

     ``less_than_or_equal_to`` - match numeric ordering

+* Boolean

+

+  * ``is_true`` - verify the value is True

+  * ``is_false`` - verify the value is False

+

 * Text

   * ``contains_string`` - match part of a string

diff --git a/src/hamcrest/library/__init__.py b/src/hamcrest/library/__init__.py

index a5a7963..55dfcda 100644

--- a/src/hamcrest/library/__init__.py

+++ b/src/hamcrest/library/__init__.py

@@ -7,6 +7,7 @@ from hamcrest.library.integration import *

 from hamcrest.library.number import *

 from hamcrest.library.object import *

 from hamcrest.library.text import *

+from hamcrest.library.bool import *

 __author__ = "Jon Reid"

 __copyright__ = "Copyright 2011 hamcrest.org"

@@ -41,4 +42,6 @@ __all__ = [

     'ends_with',

     'starts_with',

     'string_contains_in_order',

+    'is_true',

+    'is_false'

 ]

diff --git a/src/hamcrest/library/bool/__init__.py b/src/hamcrest/library/bool/__init__.py

new file mode 100644

index 0000000..7cf13a3

--- /dev/null

+++ b/src/hamcrest/library/bool/__init__.py

@@ -0,0 +1 @@

+from .bool_comparison import is_true, is_false

diff --git a/src/hamcrest/library/bool/bool_comparison.py b/src/hamcrest/library/bool/bool_comparison.py

new file mode 100644

index 0000000..af7e1b6

--- /dev/null

+++ b/src/hamcrest/library/bool/bool_comparison.py

@@ -0,0 +1,22 @@

+from hamcrest.core.base_matcher import BaseMatcher

+

+

+class IsABool(BaseMatcher):

+    def __init__(self, boolean_value):

+        self.boolean_value = boolean_value

+

+    def describe_to(self, description):

+        description.append_text(str(self.boolean_value))

+

+    def _matches(self, item):

+        if not isinstance(item, bool):

+            return False

+        return item == self.boolean_value

+

+

+def is_true():

+    return IsABool(True)

+

+

+def is_false():

+    return IsABool(False)

diff --git a/tests/hamcrest_unit_test/bool/__init__.py b/tests/hamcrest_unit_test/bool/__init__.py

new file mode 100644

index 0000000..e69de29

diff --git a/tests/hamcrest_unit_test/bool/bool_comparison_test.py b/tests/hamcrest_unit_test/bool/bool_comparison_test.py

new file mode 100644

index 0000000..e865365

--- /dev/null

+++ b/tests/hamcrest_unit_test/bool/bool_comparison_test.py

@@ -0,0 +1,34 @@

+from hamcrest import assert_that, equal_to

+from hamcrest.core.string_description import StringDescription

+from hamcrest.library.bool import is_false, is_true

+from hamcrest_unit_test.matcher_test import MatcherTest

+

+

+class BoolComparisonTest(MatcherTest):

+    def test_true_is_true(self):

+        self.assert_matches('Is True', is_true(), True)

+

+    def test_false_is_not_true(self):

+        self.assert_does_not_match('False', is_true(), False)

+

+    def test_false_is_false(self):

+        self.assert_matches('False', is_false(), False)

+

+    def test_true_is_not_false(self):

+        self.assert_does_not_match('True', is_false(), True)

+

+    def test_number_is_not_true(self):

+        self.assert_does_not_match('True', is_true(), 1)

+

+    def test_number_is_not_false(self):

+        self.assert_does_not_match('False', is_false(), 1)

+

+    def test_is_true_description(self):

+        description = StringDescription()

+        is_true().describe_to(description)

+        assert_that(str(description), equal_to('True'))

+

+    def test_is_false_description(self):

+        description = StringDescription()

+        is_false().describe_to(description)

+        assert_that(str(description), equal_to('False'))

-- 

2.9.3