test(dry-run): cover run step error samples

Author: JerryNee

src/lib/dry-run/samples.test.ts

@@ -405,6 +405,22 @@ describe('findSample', () => {
     expect(body.stepSummary.failedCount).toBe(0);
   });
 
+  it('GET /runs/{runId} sample includes a failed run step with backend error text', () => {
+    const e = findSample(
+      'GET',
+      'https://api.testsprite.com/api/cli/v1/runs/run_xyz?includeSteps=true',
+    );
+    expect(e?.operationId).toBe('getRun');
+    const body = e?.body() as {
+      steps: Array<{ type: string; status: string; error: string | null }>;
+    };
+    const failedStep = body.steps.find(step => step.status === 'failed');
+    expect(failedStep).toMatchObject({
+      type: 'assertion',
+      error: expect.stringContaining('AssertionError'),
+    });
+  });
+
   it('getTest sample carries priority field (G1a)', () => {
     const e = findSample('GET', 'https://api.testsprite.com/api/cli/v1/tests/test_abc');
     expect(e?.operationId).toBe('getTest');

src/lib/dry-run/samples.ts

@@ -713,6 +713,17 @@ const ENTRIES: DryRunSampleEntry[] = [
         htmlSnapshotUrl: null,
         createdAt: '2026-05-15T19:32:20.000Z',
       },
+      {
+        stepIndex: '0003',
+        type: 'assertion',
+        action: 'assert_visible',
+        status: 'failed',
+        description: 'Confirmation toast is visible',
+        error: 'AssertionError: confirmation toast did not appear before timeout',
+        screenshotUrl: 'https://s3-presigned.example.com/snap/run-step-0003.png?X-Amz-dryrun',
+        htmlSnapshotUrl: 'https://s3-presigned.example.com/snap/run-step-0003.html?X-Amz-dryrun',
+        createdAt: '2026-05-15T19:32:30.000Z',
+      },
     ],
   } satisfies RunResponse),
 ];