Added test for getMeasurements() of compare.ts

Signed-off-by: Stefan Marr <[email protected]>

src/backend/compare/compare.ts

@@ -84,7 +84,10 @@ export async function getMeasurementsAsJson(
   completeRequestAndHandlePromise(start, db, 'get-measurements');
 }
 
-async function getMeasurements(
+/**
+ * Only exported for testing, meant to be private.
+ */
+export async function getMeasurements(
   projectSlug: string,
   runId: number,
   baseCommitId: string,

tests/backend/compare/db-measurements.test.ts

@@ -0,0 +1,44 @@
+import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
+
+import {
+  TestDatabase,
+  closeMainDb,
+  createAndInitializeDB
+} from '../db/db-testing.js';
+import { loadLargePayload } from '../../payload.js';
+import { getMeasurements } from '../../../src/backend/compare/compare.js';
+
+describe('compare view: getMeasurements()', () => {
+  let db: TestDatabase;
+
+  beforeAll(async () => {
+    db = await createAndInitializeDB('compare_view_get_m', 0, false);
+    const largeTestData = loadLargePayload();
+    await db.recordAllData(largeTestData);
+  });
+
+  afterAll(async () => {
+    if (db) return db.close();
+  });
+
+  it('should give expected results for runId 1', async () => {
+    const results = await getMeasurements(
+      'Large-Example-Project',
+      10,
+      '58666d1c84c652306f930daa72e7a47c58478e86',
+      '58666d1c84c652306f930daa72e7a47c58478e86',
+      db
+    );
+
+    expect(results).toHaveLength(1);
+    if (results === null) return;
+    expect(results[0].data).toHaveLength(1);
+    expect(results[0].data[0].criterion).toEqual('total');
+    expect(results[0].data[0].values).toHaveLength(1);
+    expect(results[0].data[0].values[0]).toHaveLength(1000);
+  });
+});
+
+afterAll(async () => {
+  return closeMainDb();
+});