1 files changed, 44 insertions, 1 deletions
diff --git a/spec/lib/gitlab/ci/config/yaml_spec.rb b/spec/lib/gitlab/ci/config/yaml_spec.rb
index 4b34553f55e..f4b70069bbe 100644
--- a/spec/lib/gitlab/ci/config/yaml_spec.rb
+++ b/spec/lib/gitlab/ci/config/yaml_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Gitlab::Ci::Config::Yaml, feature_category: :pipeline_authoring do
+RSpec.describe Gitlab::Ci::Config::Yaml, feature_category: :pipeline_composition do
   describe '.load!' do
     it 'loads a single-doc YAML file' do
       yaml = <<~YAML
@@ -50,6 +50,15 @@ RSpec.describe Gitlab::Ci::Config::Yaml, feature_category: :pipeline_authoring d
       })
     end
 
+    context 'when YAML is invalid' do
+      let(:yaml) { 'some: invalid: syntax' }
+
+      it 'raises an error' do
+        expect { described_class.load!(yaml) }
+          .to raise_error ::Gitlab::Config::Loader::FormatError, /mapping values are not allowed in this context/
+      end
+    end
+
     context 'when ci_multi_doc_yaml is disabled' do
       before do
         stub_feature_flags(ci_multi_doc_yaml: false)
@@ -102,4 +111,38 @@ RSpec.describe Gitlab::Ci::Config::Yaml, feature_category: :pipeline_authoring d
       end
     end
   end
+
+  describe '.load_result!' do
+    context 'when syntax is invalid' do
+      let(:yaml) { 'some: invalid: syntax' }
+
+      it 'returns an invalid result object' do
+        result = described_class.load_result!(yaml)
+
+        expect(result).not_to be_valid
+        expect(result.error).to be_a ::Gitlab::Config::Loader::FormatError
+      end
+    end
+
+    context 'when syntax is valid and contains a header document' do
+      let(:yaml) do
+        <<~YAML
+          a: 1
+          ---
+          b: 2
+        YAML
+      end
+
+      let(:project) { create(:project) }
+
+      it 'returns a result object' do
+        result = described_class.load_result!(yaml, project: project)
+
+        expect(result).to be_valid
+        expect(result.error).to be_nil
+        expect(result.header).to eq({ a: 1 })
+        expect(result.content).to eq({ b: 2 })
+      end
+    end
+  end
 end