Merge pull request #285 from GoogleChrome/missing-prerender-tests

Add missing prerender tests

Author: philipwalton

test/e2e/onCLS-test.js

@@ -632,6 +632,28 @@ describe('onCLS()', async function() {
     assert.strictEqual(cls.navigationType, 'back-forward-cache');
   });
 
+  it('reports prerender as nav type for prerender', async function() {
+    if (!browserSupportsCLS) this.skip();
+
+    await browser.url('/test/cls?prerender=1');
+
+    // Wait until all images are loaded and rendered, then change to hidden.
+    await imagesPainted();
+    await stubVisibilityChange('hidden');
+
+
+    await beaconCountIs(1);
+    const [cls] = await getBeacons();
+
+    assert(cls.value >= 0);
+    assert(cls.id.match(/^v3-\d+-\d+$/));
+    assert.strictEqual(cls.name, 'CLS');
+    assert.strictEqual(cls.value, cls.delta);
+    assert.strictEqual(cls.rating, 'good');
+    assert.strictEqual(cls.entries.length, 2);
+    assert.strictEqual(cls.navigationType, 'prerender');
+  });
+
   it('reports restore as nav type for wasDiscarded', async function() {
     if (!browserSupportsCLS) this.skip();
 

test/e2e/onFID-test.js

@@ -194,6 +194,27 @@ describe('onFID()', async function() {
     assert.match(fid2.entries[0].name, /(mouse|pointer)down/);
   });
 
+  it('reports prerender as nav type for prerender', async function() {
+    if (!browserSupportsFID) this.skip();
+
+    await browser.url('/test/fid?prerender=1');
+
+    // Click on the <h1>.
+    const h1 = await $('h1');
+    await h1.click();
+
+    await beaconCountIs(1);
+
+    const [fid] = await getBeacons();
+    assert(fid.value >= 0);
+    assert(fid.id.match(/^v3-\d+-\d+$/));
+    assert.strictEqual(fid.name, 'FID');
+    assert.strictEqual(fid.value, fid.delta);
+    assert.strictEqual(fid.rating, 'good');
+    assert.strictEqual(fid.navigationType, 'prerender');
+    assert.match(fid.entries[0].name, /(mouse|pointer)down/);
+  });
+
   it('reports restore as nav type for wasDiscarded', async function() {
     if (!browserSupportsFID) this.skip();
 

test/e2e/onINP-test.js

@@ -316,6 +316,31 @@ describe('onINP()', async function() {
     assert.strictEqual(beacons.length, 0);
   });
 
+  it('reports prerender as nav type for prerender', async function() {
+    if (!browserSupportsINP) this.skip();
+
+    await browser.url('/test/inp?click=100&prerender=1');
+
+
+    const h1 = await $('h1');
+    await h1.click();
+
+    await stubVisibilityChange('hidden');
+
+    await beaconCountIs(1);
+
+    const [inp] = await getBeacons();
+    assert(inp.value >= 0);
+    assert(inp.id.match(/^v3-\d+-\d+$/));
+    assert.strictEqual(inp.name, 'INP');
+    assert.strictEqual(inp.value, inp.delta);
+    assert.strictEqual(inp.rating, 'good');
+    assert(containsEntry(inp.entries, 'click', 'h1'));
+    assert(interactionIDsMatch(inp.entries));
+    assert(inp.entries[0].interactionId > 0);
+    assert.strictEqual(inp.navigationType, 'prerender');
+  });
+
   it('reports restore as nav type for wasDiscarded', async function() {
     if (!browserSupportsINP) this.skip();