Initial commit

spec/support/matchers/allow_content_type.rb

@@ -0,0 +1,54 @@
+require "rspec/expectations"
+RSpec::Matchers.define :allow_content_type do |*content_types|
+  match do |record| 
+    matcher.matches?(record, content_types)
+  end
+
+  chain :for do |attr_name|
+    matcher.for(attr_name)
+  end
+
+  chain :with_message do |message|
+    matcher.with_message(message)
+  end
+
+  private
+
+  def matcher
+    @matcher ||= AllowContentTypeMatcher.new
+  end
+
+  class AllowContentTypeMatcher
+    def for(attr_name)
+      @attr_name = attr_name
+    end
+
+    def with_message(message)
+      @message = message
+    end
+
+    def matches?(record, content_types)
+      Array.wrap(content_types).all? do |content_type|
+        record.send(attr_name).attach attachment_for(content_type)
+        record.valid?
+        !record.errors[attr_name].include? message
+      end
+    end
+
+    private
+
+    attr_reader :attr_name
+
+    def attachment_for(content_type)
+      suffix = content_type.to_s.split("/").last
+
+      { io: StringIO.new("Hello world!"), filename: "test.#{suffix}", content_type: content_type }
+    end
+
+    def message
+      @message || I18n.translate("activerecord.errors.messages.content_type")
+    end
+  end
+end
+
+RSpec::Matchers.alias_matcher :allow_content_types, :allow_content_type

spec/support/matchers/have_invalid_field.rb

@@ -0,0 +1,8 @@
+require "rspec/expectations"
+
+RSpec::Matchers.define :have_invalid_field do |field_name|
+  match do |page|
+    page.has_field?(name, class: "is-invalid") || 
+      page.find_field(field_name).native.attribute("validationMessage").present?
+  end
+end

spec/support/matchers/validate_attachment_of.rb

@@ -0,0 +1,45 @@
+require "rspec/expectations"
+
+RSpec::Matchers.define :validate_attachment_of do |attr_name|
+  match do |record| 
+    matcher.matches?(record, attr_name)
+  end
+
+  chain :on do |validation_context|
+    matcher.on(validation_context)
+  end
+
+  chain :with_message do |message|
+    matcher.with_message(message)
+  end
+
+  private
+
+  def matcher
+    @matcher ||= ValidateAttachmentOfMatcher.new
+  end
+
+  class ValidateAttachmentOfMatcher
+    def on(validation_context)
+      @validation_context = validation_context
+    end
+
+    def with_message(message)
+      @message = message
+    end
+
+    def matches?(record, attr_name)
+      record.send(attr_name).purge
+      record.valid?(validation_context)
+      record.errors[attr_name].include? message
+    end
+    
+    private
+
+    attr_reader :validation_context
+
+    def message
+      @message || I18n.translate("activerecord.errors.messages.attached")
+    end
+  end
+end