1 files changed, 151 insertions, 0 deletions
diff --git a/spec/frontend/pipelines/unwrapping_utils_spec.js b/spec/frontend/pipelines/unwrapping_utils_spec.js
new file mode 100644
index 00000000000..3533599611f
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+++ b/spec/frontend/pipelines/unwrapping_utils_spec.js
@@ -0,0 +1,151 @@
+import {
+  unwrapArrayOfJobs,
+  unwrapGroups,
+  unwrapNodesWithName,
+  unwrapStagesWithNeeds,
+} from '~/pipelines/components/unwrapping_utils';
+
+const groupsArray = [
+  {
+    name: 'build_a',
+    size: 1,
+    status: {
+      label: 'passed',
+      group: 'success',
+      icon: 'status_success',
+    },
+  },
+  {
+    name: 'bob_the_build',
+    size: 1,
+    status: {
+      label: 'passed',
+      group: 'success',
+      icon: 'status_success',
+    },
+  },
+];
+
+const basicStageInfo = {
+  name: 'center_stage',
+  status: {
+    action: null,
+  },
+};
+
+const stagesAndGroups = [
+  {
+    ...basicStageInfo,
+    groups: {
+      nodes: groupsArray,
+    },
+  },
+];
+
+const needArray = [
+  {
+    name: 'build_b',
+  },
+];
+
+const elephantArray = [
+  {
+    name: 'build_b',
+    elephant: 'gray',
+  },
+];
+
+const baseJobs = {
+  name: 'test_d',
+  status: {
+    icon: 'status_success',
+    tooltip: null,
+    hasDetails: true,
+    detailsPath: '/root/abcd-dag/-/pipelines/162',
+    group: 'success',
+    action: null,
+  },
+};
+
+const jobArrayWithNeeds = [
+  {
+    ...baseJobs,
+    needs: {
+      nodes: needArray,
+    },
+  },
+];
+
+const jobArrayWithElephant = [
+  {
+    ...baseJobs,
+    needs: {
+      nodes: elephantArray,
+    },
+  },
+];
+
+const completeMock = [
+  {
+    ...basicStageInfo,
+    groups: {
+      nodes: groupsArray.map(group => ({ ...group, jobs: { nodes: jobArrayWithNeeds } })),
+    },
+  },
+];
+
+describe('Shared pipeline unwrapping utils', () => {
+  describe('unwrapArrayOfJobs', () => {
+    it('returns an empty array if the input is an empty undefined', () => {
+      expect(unwrapArrayOfJobs(undefined)).toEqual([]);
+    });
+
+    it('returns an empty array if the input is an empty array', () => {
+      expect(unwrapArrayOfJobs([])).toEqual([]);
+    });
+
+    it('returns a flatten array of each job with their data and stage name', () => {
+      expect(
+        unwrapArrayOfJobs([
+          { name: 'build', groups: [{ name: 'job_a_1' }, { name: 'job_a_2' }] },
+          { name: 'test', groups: [{ name: 'job_b' }] },
+        ]),
+      ).toMatchObject([
+        { category: 'build', name: 'job_a_1' },
+        { category: 'build', name: 'job_a_2' },
+        { category: 'test', name: 'job_b' },
+      ]);
+    });
+  });
+
+  describe('unwrapGroups', () => {
+    it('takes stages without nodes and returns the unwrapped groups', () => {
+      expect(unwrapGroups(stagesAndGroups)[0].groups).toEqual(groupsArray);
+    });
+
+    it('keeps other stage properties intact', () => {
+      expect(unwrapGroups(stagesAndGroups)[0]).toMatchObject(basicStageInfo);
+    });
+  });
+
+  describe('unwrapNodesWithName', () => {
+    it('works with no field argument', () => {
+      expect(unwrapNodesWithName(jobArrayWithNeeds, 'needs')[0].needs).toEqual([needArray[0].name]);
+    });
+
+    it('works with custom field argument', () => {
+      expect(unwrapNodesWithName(jobArrayWithElephant, 'needs', 'elephant')[0].needs).toEqual([
+        elephantArray[0].elephant,
+      ]);
+    });
+  });
+
+  describe('unwrapStagesWithNeeds', () => {
+    it('removes nodes from groups, jobs, and needs', () => {
+      const firstProcessedGroup = unwrapStagesWithNeeds(completeMock)[0].groups[0];
+      expect(firstProcessedGroup).toMatchObject(groupsArray[0]);
+      expect(firstProcessedGroup.jobs[0]).toMatchObject(baseJobs);
+      expect(firstProcessedGroup.jobs[0].needs[0]).toBe(needArray[0].name);
+    });
+  });
+});