intermediate changes

ref:17a230a3419e9a5f0286356df636f0071dc757b6

1 files changed, 154 insertions, 0 deletions

diff --git a/contrib/python/PyHamcrest/hamcrest/library/object/hasproperty.py b/contrib/python/PyHamcrest/hamcrest/library/object/hasproperty.py
new file mode 100644
index 0000000000..d2536d69f4
--- /dev/null
+++ b/contrib/python/PyHamcrest/hamcrest/library/object/hasproperty.py
@@ -0,0 +1,154 @@
+from hamcrest.core.base_matcher import BaseMatcher
+from hamcrest.core import anything
+from hamcrest.core.core.allof import all_of
+from hamcrest.core.string_description import StringDescription
+from hamcrest.core.helpers.hasmethod import hasmethod
+from hamcrest.core.helpers.wrap_matcher import wrap_matcher as wrap_shortcut
+
+__author__ = "Chris Rose"
+__copyright__ = "Copyright 2011 hamcrest.org"
+__license__ = "BSD, see License.txt"
+
+
+class IsObjectWithProperty(BaseMatcher):
+
+    def __init__(self, property_name, value_matcher):
+        self.property_name = property_name
+        self.value_matcher = value_matcher
+
+    def _matches(self, o):
+        if o is None:
+            return False
+
+        if not hasattr(o, self.property_name):
+            return False
+
+        value = getattr(o, self.property_name)
+        return self.value_matcher.matches(value)
+
+    def describe_to(self, description):
+        description.append_text("an object with a property '") \
+                                        .append_text(self.property_name) \
+                                        .append_text("' matching ") \
+                                        .append_description_of(self.value_matcher)
+
+    def describe_mismatch(self, item, mismatch_description):
+        if item is None:
+            mismatch_description.append_text('was None')
+            return
+
+        if not hasattr(item, self.property_name):
+            mismatch_description.append_value(item) \
+                                                    .append_text(' did not have the ') \
+                                                    .append_value(self.property_name) \
+                                                    .append_text(' property')
+            return
+
+        mismatch_description.append_text('property ').append_value(self.property_name).append_text(' ')
+        value = getattr(item, self.property_name)
+        self.value_matcher.describe_mismatch(value, mismatch_description)
+
+    def __str__(self):
+        d = StringDescription()
+        self.describe_to(d)
+        return str(d)
+
+
+def has_property(name, match=None):
+    """Matches if object has a property with a given name whose value satisfies
+    a given matcher.
+
+    :param name: The name of the property.
+    :param match: Optional matcher to satisfy.
+
+    This matcher determines if the evaluated object has a property with a given
+    name. If no such property is found, ``has_property`` is not satisfied.
+
+    If the property is found, its value is passed to a given matcher for
+    evaluation. If the ``match`` argument is not a matcher, it is implicitly
+    wrapped in an :py:func:`~hamcrest.core.core.isequal.equal_to` matcher to
+    check for equality.
+
+    If the ``match`` argument is not provided, the
+    :py:func:`~hamcrest.core.core.isanything.anything` matcher is used so that
+    ``has_property`` is satisfied if a matching property is found.
+
+    Examples::
+
+        has_property('name', starts_with('J'))
+        has_property('name', 'Jon')
+        has_property('name')
+
+    """
+
+    if match is None:
+        match = anything()
+
+    return IsObjectWithProperty(name, wrap_shortcut(match))
+
+
+def has_properties(*keys_valuematchers, **kv_args):
+    """Matches if an object has properties satisfying all of a dictionary
+    of string property names and corresponding value matchers.
+
+    :param matcher_dict: A dictionary mapping keys to associated value matchers,
+        or to expected values for
+        :py:func:`~hamcrest.core.core.isequal.equal_to` matching.
+
+    Note that the keys must be actual keys, not matchers. Any value argument
+    that is not a matcher is implicitly wrapped in an
+    :py:func:`~hamcrest.core.core.isequal.equal_to` matcher to check for
+    equality.
+
+    Examples::
+
+        has_properties({'foo':equal_to(1), 'bar':equal_to(2)})
+        has_properties({'foo':1, 'bar':2})
+
+    ``has_properties`` also accepts a list of keyword arguments:
+
+    .. function:: has_properties(keyword1=value_matcher1[, keyword2=value_matcher2[, ...]])
+
+    :param keyword1: A keyword to look up.
+    :param valueMatcher1: The matcher to satisfy for the value, or an expected
+        value for :py:func:`~hamcrest.core.core.isequal.equal_to` matching.
+
+    Examples::
+
+        has_properties(foo=equal_to(1), bar=equal_to(2))
+        has_properties(foo=1, bar=2)
+
+    Finally, ``has_properties`` also accepts a list of alternating keys and their
+    value matchers:
+
+    .. function:: has_properties(key1, value_matcher1[, ...])
+
+    :param key1: A key (not a matcher) to look up.
+    :param valueMatcher1: The matcher to satisfy for the value, or an expected
+        value for :py:func:`~hamcrest.core.core.isequal.equal_to` matching.
+
+    Examples::
+
+        has_properties('foo', equal_to(1), 'bar', equal_to(2))
+        has_properties('foo', 1, 'bar', 2)
+
+    """
+    if len(keys_valuematchers) == 1:
+        try:
+            base_dict = keys_valuematchers[0].copy()
+            for key in base_dict:
+                base_dict[key] = wrap_shortcut(base_dict[key])
+        except AttributeError:
+            raise ValueError('single-argument calls to has_properties must pass a dict as the argument')
+    else:
+        if len(keys_valuematchers) % 2:
+            raise ValueError('has_properties requires key-value pairs')
+        base_dict = {}
+        for index in range(int(len(keys_valuematchers) / 2)):
+            base_dict[keys_valuematchers[2 * index]] = wrap_shortcut(keys_valuematchers[2 * index + 1])
+
+    for key, value in kv_args.items():
+        base_dict[key] = wrap_shortcut(value)
+
+    return all_of(*[has_property(property_name, property_value_matcher) for \
+                   property_name, property_value_matcher in base_dict.items()])