1 files changed, 161 insertions, 0 deletions
diff --git a/qa/spec/resource/api_fabricator_spec.rb b/qa/spec/resource/api_fabricator_spec.rb
new file mode 100644
index 00000000000..a5ed4422f6e
--- /dev/null
+++ b/qa/spec/resource/api_fabricator_spec.rb
@@ -0,0 +1,161 @@
+# frozen_string_literal: true
+
+describe QA::Resource::ApiFabricator do
+  let(:resource_without_api_support) do
+    Class.new do
+      def self.name
+        'FooBarResource'
+      end
+    end
+  end
+
+  let(:resource_with_api_support) do
+    Class.new do
+      def self.name
+        'FooBarResource'
+      end
+
+      def api_get_path
+        '/foo'
+      end
+
+      def api_post_path
+        '/bar'
+      end
+
+      def api_post_body
+        { name: 'John Doe' }
+      end
+    end
+  end
+
+  before do
+    allow(subject).to receive(:current_url).and_return('')
+  end
+
+  subject { resource.tap { |f| f.include(described_class) }.new }
+
+  describe '#api_support?' do
+    let(:api_client) { spy('Runtime::API::Client') }
+    let(:api_client_instance) { double('API Client') }
+
+    context 'when resource does not support fabrication via the API' do
+      let(:resource) { resource_without_api_support }
+
+      it 'returns false' do
+        expect(subject).not_to be_api_support
+      end
+    end
+
+    context 'when resource supports fabrication via the API' do
+      let(:resource) { resource_with_api_support }
+
+      it 'returns false' do
+        expect(subject).to be_api_support
+      end
+    end
+  end
+
+  describe '#fabricate_via_api!' do
+    let(:api_client) { spy('Runtime::API::Client') }
+    let(:api_client_instance) { double('API Client') }
+
+    before do
+      stub_const('QA::Runtime::API::Client', api_client)
+
+      allow(api_client).to receive(:new).and_return(api_client_instance)
+      allow(api_client_instance).to receive(:personal_access_token).and_return('foo')
+    end
+
+    context 'when resource does not support fabrication via the API' do
+      let(:resource) { resource_without_api_support }
+
+      it 'raises a NotImplementedError exception' do
+        expect { subject.fabricate_via_api! }.to raise_error(NotImplementedError, "Resource FooBarResource does not support fabrication via the API!")
+      end
+    end
+
+    context 'when resource supports fabrication via the API' do
+      let(:resource) { resource_with_api_support }
+      let(:api_request) { spy('Runtime::API::Request') }
+      let(:resource_web_url) { 'http://example.org/api/v4/foo' }
+      let(:response) { { id: 1, name: 'John Doe', web_url: resource_web_url } }
+      let(:raw_post) { double('Raw POST response', code: 201, body: response.to_json) }
+
+      before do
+        stub_const('QA::Runtime::API::Request', api_request)
+
+        allow(api_request).to receive(:new).and_return(double(url: resource_web_url))
+      end
+
+      context 'when creating a resource' do
+        before do
+          allow(subject).to receive(:post).with(resource_web_url, subject.api_post_body).and_return(raw_post)
+        end
+
+        it 'returns the resource URL' do
+          expect(api_request).to receive(:new).with(api_client_instance, subject.api_post_path).and_return(double(url: resource_web_url))
+          expect(subject).to receive(:post).with(resource_web_url, subject.api_post_body).and_return(raw_post)
+
+          expect(subject.fabricate_via_api!).to eq(resource_web_url)
+        end
+
+        it 'populates api_resource with the resource' do
+          subject.fabricate_via_api!
+
+          expect(subject.api_resource).to eq(response)
+        end
+
+        context 'when the POST fails' do
+          let(:post_response) { { error: "Name already taken." } }
+          let(:raw_post) { double('Raw POST response', code: 400, body: post_response.to_json) }
+
+          it 'raises a ResourceFabricationFailedError exception' do
+            expect(api_request).to receive(:new).with(api_client_instance, subject.api_post_path).and_return(double(url: resource_web_url))
+            expect(subject).to receive(:post).with(resource_web_url, subject.api_post_body).and_return(raw_post)
+
+            expect { subject.fabricate_via_api! }.to raise_error(described_class::ResourceFabricationFailedError, "Fabrication of FooBarResource using the API failed (400) with `#{raw_post}`.")
+            expect(subject.api_resource).to be_nil
+          end
+        end
+      end
+
+      context '#transform_api_resource' do
+        let(:resource) do
+          Class.new do
+            def self.name
+              'FooBarResource'
+            end
+
+            def api_get_path
+              '/foo'
+            end
+
+            def api_post_path
+              '/bar'
+            end
+
+            def api_post_body
+              { name: 'John Doe' }
+            end
+
+            def transform_api_resource(resource)
+              resource[:new] = 'foobar'
+              resource
+            end
+          end
+        end
+
+        let(:response) { { existing: 'foo', web_url: resource_web_url } }
+        let(:transformed_resource) { { existing: 'foo', new: 'foobar', web_url: resource_web_url } }
+
+        it 'transforms the resource' do
+          expect(subject).to receive(:post).with(resource_web_url, subject.api_post_body).and_return(raw_post)
+          expect(subject).to receive(:transform_api_resource).with(response).and_return(transformed_resource)
+
+          subject.fabricate_via_api!
+        end
+      end
+    end
+  end
+end