Add datetime and integer array validator matchers

spec/support/matchers/date_time_validator_matchers.rb

@@ -0,0 +1,30 @@
+# RSpec matcher for DateTimeValidator
+#
+# Usage:
+#
+#     describe Post do
+#       it { should validate_date_time_format_of(:start_at) }
+#     end
+RSpec::Matchers.define :validate_date_time_format_of do |attribute|
+  match do |instance|
+    @instance, @attribute = instance, attribute
+
+    invalid_format_message = I18n.t("validators.date_time_string_validator.invalid_format_error")
+
+    allow(instance).to receive(attribute) { "Invalid Format" }
+    instance.valid?
+    (instance.errors[attribute] || []).include?(invalid_format_message)
+  end
+
+  description do
+    "validates :#{@attribute} has datetime format"
+  end
+
+  failure_message do
+    "expected #{@instance} to validate format of :#{@attribute} is datetime"
+  end
+
+  failure_message_when_negated do
+    "expected #{@instance} not to validate format of :#{@attribute} is datetime"
+  end
+end

spec/support/matchers/integer_array_validator_matchers.rb

@@ -0,0 +1,30 @@
+# RSpec matcher for IntegerArrayValidator
+#
+# Usage:
+#
+#     describe Post do
+#       it { should validate_integer_array(:related_post_ids) }
+#     end
+RSpec::Matchers.define :validate_integer_array do |attribute|
+  match do |instance|
+    @instance, @attribute = instance, attribute
+
+    invalid_format_message = I18n.t("validators.integer_array_validator.invalid_element_error")
+
+    allow(instance).to receive(attribute) { [1, "2", "Not Integer", 3] }
+    instance.valid?
+    (instance.errors[attribute] || []).include?(invalid_format_message)
+  end
+
+  description do
+    "validates :#{@attribute} is integer array"
+  end
+
+  failure_message do
+    "expected #{@instance} to validate :#{@attribute} is integer array"
+  end
+
+  failure_message_when_negated do
+    "expected #{@instance} not to validate :#{@attribute} is integer array"
+  end
+end