1 files changed, 164 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/config/entry/trigger_spec.rb b/spec/lib/gitlab/ci/config/entry/trigger_spec.rb
new file mode 100644
index 00000000000..752c3f59a95
--- /dev/null
+++ b/spec/lib/gitlab/ci/config/entry/trigger_spec.rb
@@ -0,0 +1,164 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::Ci::Config::Entry::Trigger do
+  subject { described_class.new(config) }
+
+  context 'when trigger config is a non-empty string' do
+    let(:config) { 'some/project' }
+
+    describe '#valid?' do
+      it { is_expected.to be_valid }
+    end
+
+    describe '#value' do
+      it 'returns a trigger configuration hash' do
+        expect(subject.value).to eq(project: 'some/project')
+      end
+    end
+  end
+
+  context 'when trigger config an empty string' do
+    let(:config) { '' }
+
+    describe '#valid?' do
+      it { is_expected.not_to be_valid }
+    end
+
+    describe '#errors' do
+      it 'returns an error about an empty config' do
+        expect(subject.errors.first)
+          .to match /config can't be blank/
+      end
+    end
+  end
+
+  context 'when trigger is a hash' do
+    context 'when branch is provided' do
+      let(:config) { { project: 'some/project', branch: 'feature' } }
+
+      describe '#valid?' do
+        it { is_expected.to be_valid }
+      end
+
+      describe '#value' do
+        it 'returns a trigger configuration hash' do
+          expect(subject.value)
+            .to eq(project: 'some/project', branch: 'feature')
+        end
+      end
+    end
+
+    context 'when strategy is provided' do
+      context 'when strategy is depend' do
+        let(:config) { { project: 'some/project', strategy: 'depend' } }
+
+        describe '#valid?' do
+          it { is_expected.to be_valid }
+        end
+
+        describe '#value' do
+          it 'returns a trigger configuration hash' do
+            expect(subject.value)
+              .to eq(project: 'some/project', strategy: 'depend')
+          end
+        end
+      end
+
+      context 'when strategy is invalid' do
+        let(:config) { { project: 'some/project', strategy: 'notdepend' } }
+
+        describe '#valid?' do
+          it { is_expected.not_to be_valid }
+        end
+
+        describe '#errors' do
+          it 'returns an error about unknown config key' do
+            expect(subject.errors.first)
+              .to match /trigger strategy should be depend/
+          end
+        end
+      end
+    end
+
+    describe '#include' do
+      context 'with simple include' do
+        let(:config) { { include: 'path/to/config.yml' } }
+
+        it { is_expected.to be_valid }
+
+        it 'returns a trigger configuration hash' do
+          expect(subject.value).to eq(include: 'path/to/config.yml' )
+        end
+      end
+
+      context 'with project' do
+        let(:config) { { project: 'some/project', include: 'path/to/config.yml' } }
+
+        it { is_expected.not_to be_valid }
+
+        it 'returns an error' do
+          expect(subject.errors.first)
+            .to match /config contains unknown keys: project/
+        end
+      end
+
+      context 'with branch' do
+        let(:config) { { branch: 'feature', include: 'path/to/config.yml' } }
+
+        it { is_expected.not_to be_valid }
+
+        it 'returns an error' do
+          expect(subject.errors.first)
+            .to match /config contains unknown keys: branch/
+        end
+      end
+
+      context 'when feature flag is off' do
+        before do
+          stub_feature_flags(ci_parent_child_pipeline: false)
+        end
+
+        let(:config) { { include: 'path/to/config.yml' } }
+
+        it 'is returns an error if include is used' do
+          expect(subject.errors.first)
+            .to match /config must specify project/
+        end
+      end
+    end
+
+    context 'when config contains unknown keys' do
+      let(:config) { { project: 'some/project', unknown: 123 } }
+
+      describe '#valid?' do
+        it { is_expected.not_to be_valid }
+      end
+
+      describe '#errors' do
+        it 'returns an error about unknown config key' do
+          expect(subject.errors.first)
+            .to match /config contains unknown keys: unknown/
+        end
+      end
+    end
+  end
+
+  context 'when trigger configuration is not valid' do
+    context 'when branch is not provided' do
+      let(:config) { 123 }
+
+      describe '#valid?' do
+        it { is_expected.not_to be_valid }
+      end
+
+      describe '#errors' do
+        it 'returns an error message' do
+          expect(subject.errors.first)
+            .to match /has to be either a string or a hash/
+        end
+      end
+    end
+  end
+end