1 files changed, 123 insertions, 0 deletions
diff --git a/spec/support/shared_examples/controllers/variables_shared_examples.rb b/spec/support/shared_examples/controllers/variables_shared_examples.rb
new file mode 100644
index 00000000000..d7acf8c0032
--- /dev/null
+++ b/spec/support/shared_examples/controllers/variables_shared_examples.rb
@@ -0,0 +1,123 @@
+shared_examples 'GET #show lists all variables' do
+  it 'renders the variables as json' do
+    subject
+
+    expect(response).to match_response_schema('variables')
+  end
+
+  it 'has only one variable' do
+    subject
+
+    expect(json_response['variables'].count).to eq(1)
+  end
+end
+
+shared_examples 'PATCH #update updates variables' do
+  let(:variable_attributes) do
+    { id: variable.id,
+      key: variable.key,
+      value: variable.value,
+      protected: variable.protected?.to_s }
+  end
+  let(:new_variable_attributes) do
+    { key: 'new_key',
+      value: 'dummy_value',
+      protected: 'false' }
+  end
+
+  context 'with invalid new variable parameters' do
+    let(:variables_attributes) do
+      [
+        variable_attributes.merge(value: 'other_value'),
+        new_variable_attributes.merge(key: '...?')
+      ]
+    end
+
+    it 'does not update the existing variable' do
+      expect { subject }.not_to change { variable.reload.value }
+    end
+
+    it 'does not create the new variable' do
+      expect { subject }.not_to change { owner.variables.count }
+    end
+
+    it 'returns a bad request response' do
+      subject
+
+      expect(response).to have_gitlab_http_status(:bad_request)
+    end
+  end
+
+  context 'with duplicate new variable parameters' do
+    let(:variables_attributes) do
+      [
+        new_variable_attributes,
+        new_variable_attributes.merge(value: 'other_value')
+      ]
+    end
+
+    it 'does not update the existing variable' do
+      expect { subject }.not_to change { variable.reload.value }
+    end
+
+    it 'does not create the new variable' do
+      expect { subject }.not_to change { owner.variables.count }
+    end
+
+    it 'returns a bad request response' do
+      subject
+
+      expect(response).to have_gitlab_http_status(:bad_request)
+    end
+  end
+
+  context 'with valid new variable parameters' do
+    let(:variables_attributes) do
+      [
+        variable_attributes.merge(value: 'other_value'),
+        new_variable_attributes
+      ]
+    end
+
+    it 'updates the existing variable' do
+      expect { subject }.to change { variable.reload.value }.to('other_value')
+    end
+
+    it 'creates the new variable' do
+      expect { subject }.to change { owner.variables.count }.by(1)
+    end
+
+    it 'returns a successful response' do
+      subject
+
+      expect(response).to have_gitlab_http_status(:ok)
+    end
+
+    it 'has all variables in response' do
+      subject
+
+      expect(response).to match_response_schema('variables')
+    end
+  end
+
+  context 'with a deleted variable' do
+    let(:variables_attributes) { [variable_attributes.merge(_destroy: 'true')] }
+
+    it 'destroys the variable' do
+      expect { subject }.to change { owner.variables.count }.by(-1)
+      expect { variable.reload }.to raise_error ActiveRecord::RecordNotFound
+    end
+
+    it 'returns a successful response' do
+      subject
+
+      expect(response).to have_gitlab_http_status(:ok)
+    end
+
+    it 'has all variables in response' do
+      subject
+
+      expect(response).to match_response_schema('variables')
+    end
+  end
+end