1 files changed, 76 insertions, 0 deletions
diff --git a/browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups.js b/browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups.js
new file mode 100644
index 0000000000..13e7147236
--- /dev/null
+++ b/browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups.js
@@ -0,0 +1,76 @@
+/**
+ * This test tests values in a popup, it does not test them on the page that made the popup
+ *
+ * Covers the following cases:
+ *  - RFP is disabled entirely
+ *  - RFP is enabled entirely
+ *  - FPP is enabled entirely
+
+ *
+ *  - (A) RFP is exempted on the maker and popup
+ *  - (C) RFP is exempted on the maker but not the popup
+ *  - (E) RFP is not exempted on the maker nor the popup
+ *  - (G) RFP is not exempted on the maker but is on the popup
+ *
+ */
+
+"use strict";
+
+const SPOOFED_HW_CONCURRENCY = 2;
+
+const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
+
+// =============================================================================================
+// =============================================================================================
+
+async function testHWConcurrency(result, expectedResults, extraData) {
+  let testDesc = extraData.testDesc;
+
+  is(
+    result.hardwareConcurrency,
+    expectedResults.hardwareConcurrency,
+    `Checking ${testDesc} navigator.hardwareConcurrency.`
+  );
+}
+
+// The following are convenience objects that allow you to quickly see what is
+//   and is not modified from a logical set of values.
+// Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a
+//   deep copy and avoiding corrupting the original 'const' object
+const allNotSpoofed = {
+  hardwareConcurrency: DEFAULT_HARDWARE_CONCURRENCY,
+};
+const allSpoofed = {
+  hardwareConcurrency: SPOOFED_HW_CONCURRENCY,
+};
+
+const uri = `https://${FRAMER_DOMAIN}/browser/browser/components/resistfingerprinting/test/browser/file_hwconcurrency_iframer.html?mode=popup`;
+
+requestLongerTimeout(2);
+
+let expectedResults = {};
+
+expectedResults = structuredClone(allNotSpoofed);
+add_task(defaultsTest.bind(null, uri, testHWConcurrency, expectedResults));
+
+expectedResults = structuredClone(allSpoofed);
+add_task(simpleRFPTest.bind(null, uri, testHWConcurrency, expectedResults));
+
+expectedResults = structuredClone(allSpoofed);
+add_task(simpleFPPTest.bind(null, uri, testHWConcurrency, expectedResults));
+
+// (A) RFP is exempted on the maker and popup
+expectedResults = structuredClone(allNotSpoofed);
+add_task(testA.bind(null, uri, testHWConcurrency, expectedResults));
+
+// (C) RFP is exempted on the maker but not the popup
+expectedResults = structuredClone(allSpoofed);
+add_task(testC.bind(null, uri, testHWConcurrency, expectedResults));
+
+// (E) RFP is not exempted on the maker nor the popup
+expectedResults = structuredClone(allSpoofed);
+add_task(testE.bind(null, uri, testHWConcurrency, expectedResults));
+
+// (G) RFP is not exempted on the maker but is on the popup
+expectedResults = structuredClone(allSpoofed);
+add_task(testG.bind(null, uri, testHWConcurrency, expectedResults));