Bug 1878716: Add a test that confirms the expected default behavior in PBM r=timhuang

Differential Revision: https://phabricator.services.mozilla.com/D206128

browser/components/resistfingerprinting/test/browser/browser_canvas_iframes.js

@@ -135,6 +135,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomized);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvas_popups.js

@@ -132,6 +132,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomized);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvascompare_iframes.js

@@ -161,6 +161,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomized);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvascompare_iframes_aboutblank.js

@@ -164,6 +164,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomizedSameDomain);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvascompare_iframes_blob.js

@@ -164,6 +164,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomizedSameDomain);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvascompare_popups.js

@@ -166,6 +166,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomizedSameDomain);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvascompare_popups_aboutblank.js

@@ -167,6 +167,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomizedSameDomain);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvascompare_popups_blob.js

@@ -158,6 +158,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomizedSameDomain);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/browser_canvascompare_popups_data.js

@@ -158,6 +158,11 @@ add_task(
   defaultsTest.bind(null, uri, testCanvasRandomization, expectedResults)
 );
 
+expectedResults = structuredClone(fppRandomizedSameDomain);
+add_task(
+  defaultsPBMTest.bind(null, uri, testCanvasRandomization, expectedResults)
+);
+
 expectedResults = structuredClone(rfpFullyRandomized);
 add_task(
   simpleRFPTest.bind(null, uri, testCanvasRandomization, expectedResults)

browser/components/resistfingerprinting/test/browser/head.js

@@ -753,6 +753,30 @@ async function defaultsTest(
   }
 }
 
+async function defaultsPBMTest(
+  uri,
+  testFunction,
+  expectedResults,
+  extraData,
+  extraPrefs
+) {
+  if (extraData == undefined) {
+    extraData = {};
+  }
+  extraData.private_window = true;
+  extraData.testDesc = extraData.testDesc || "default PBM window";
+  expectedResults.shouldRFPApply = false;
+  if (extraPrefs != undefined) {
+    await SpecialPowers.pushPrefEnv({
+      set: extraPrefs,
+    });
+  }
+  await runActualTest(uri, testFunction, expectedResults, extraData);
+  if (extraPrefs != undefined) {
+    await SpecialPowers.popPrefEnv();
+  }
+}
+
 async function simpleRFPTest(
   uri,
   testFunction,