1 files changed, 56 insertions, 0 deletions
diff --git a/spec/graphql/resolvers/ci/config_resolver_spec.rb b/spec/graphql/resolvers/ci/config_resolver_spec.rb
new file mode 100644
index 00000000000..6911acdb4ec
--- /dev/null
+++ b/spec/graphql/resolvers/ci/config_resolver_spec.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Resolvers::Ci::ConfigResolver do
+  include GraphqlHelpers
+
+  describe '#resolve' do
+    before do
+      yaml_processor_double = instance_double(::Gitlab::Ci::YamlProcessor)
+      allow(yaml_processor_double).to receive(:execute).and_return(fake_result)
+
+      allow(::Gitlab::Ci::YamlProcessor).to receive(:new).and_return(yaml_processor_double)
+    end
+
+    context 'with a valid .gitlab-ci.yml' do
+      let(:fake_result) do
+        ::Gitlab::Ci::YamlProcessor::Result.new(
+          ci_config: ::Gitlab::Ci::Config.new(content),
+          errors: [],
+          warnings: []
+        )
+      end
+
+      let_it_be(:content) do
+        File.read(Rails.root.join('spec/support/gitlab_stubs/gitlab_ci_includes.yml'))
+      end
+
+      it 'lints the ci config file' do
+        response = resolve(described_class, args: { content: content }, ctx: {})
+
+        expect(response[:status]).to eq(:valid)
+        expect(response[:errors]).to be_empty
+      end
+    end
+
+    context 'with an invalid .gitlab-ci.yml' do
+      let(:content) { 'invalid' }
+
+      let(:fake_result) do
+        Gitlab::Ci::YamlProcessor::Result.new(
+          ci_config: nil,
+          errors: ['Invalid configuration format'],
+          warnings: []
+        )
+      end
+
+      it 'responds with errors about invalid syntax' do
+        response = resolve(described_class, args: { content: content }, ctx: {})
+
+        expect(response[:status]).to eq(:invalid)
+        expect(response[:errors]).to eq(['Invalid configuration format'])
+      end
+    end
+  end
+end