tor-browser

commit 092c54471a99f4494ab705618bbe7091469ed562
parent a42f6c233c879dee36aae58067d0bda7e08eb9d5
Author: Tom Ritter <tom@mozilla.com>
Date:   Mon, 29 Dec 2025 20:29:01 +0000

Bug 2005866: Add a test for the new math metrics r=timhuang

Differential Revision: https://phabricator.services.mozilla.com/D276930

Diffstat:
M
toolkit/components/resistfingerprinting/tests/browser/browser.toml
 | 
2
++
A
toolkit/components/resistfingerprinting/tests/browser/browser_usercharacteristics_math.js
 | 
76
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 78 insertions(+), 0 deletions(-)
diff --git a/toolkit/components/resistfingerprinting/tests/browser/browser.toml b/toolkit/components/resistfingerprinting/tests/browser/browser.toml
@@ -85,6 +85,8 @@ support-files = ["file_pdf.pdf"]
 ["browser_usercharacteristics_linux_distro.js"]
 skip-if = ["os != 'linux'"]
 
+["browser_usercharacteristics_math.js"]
+
 ["browser_usercharacteristics_timezone.js"]
 
 ["browser_worker_granular_overrides.js"]
diff --git a/toolkit/components/resistfingerprinting/tests/browser/browser_usercharacteristics_math.js b/toolkit/components/resistfingerprinting/tests/browser/browser_usercharacteristics_math.js
@@ -0,0 +1,76 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const emptyPage =
+  getRootDirectory(gTestPath).replace(
+    "chrome://mochitests/content",
+    "https://example.com"
+  ) + "empty.html";
+
+add_task(async function test_math_and_binary_arch() {
+  info("Testing firefox_binary_arch and math_ops_fdlibm_2 metrics");
+
+  await BrowserTestUtils.withNewTab({ gBrowser, url: emptyPage }, () =>
+    GleanPings.userCharacteristics.testSubmission(
+      () => {
+        // Test firefox_binary_arch metric
+        const firefoxBinaryArch =
+          Glean.characteristics.firefoxBinaryArch.testGetValue();
+        Assert.ok(firefoxBinaryArch, "firefox_binary_arch should have a value");
+        Assert.notEqual(
+          firefoxBinaryArch,
+          "",
+          "firefox_binary_arch should not be empty"
+        );
+        info(`firefox_binary_arch: ${firefoxBinaryArch}`);
+
+        // Test math_ops_fdlibm_2 metric
+        const mathOpsFdlibm2 =
+          Glean.characteristics.mathOpsFdlibm2.testGetValue();
+        Assert.ok(mathOpsFdlibm2, "math_ops_fdlibm_2 should have a value");
+        Assert.notEqual(
+          mathOpsFdlibm2,
+          "",
+          "math_ops_fdlibm_2 should not be empty"
+        );
+
+        // Parse the JSON array and check the count
+        let mathValues;
+        try {
+          mathValues = JSON.parse(mathOpsFdlibm2);
+        } catch (e) {
+          Assert.ok(false, `math_ops_fdlibm_2 should be valid JSON: ${e}`);
+          return;
+        }
+
+        Assert.ok(
+          Array.isArray(mathValues),
+          "math_ops_fdlibm_2 should be an array"
+        );
+
+        // The function collects 36 values
+        const expectedCount = 36;
+        Assert.equal(
+          mathValues.length,
+          expectedCount,
+          `math_ops_fdlibm_2 should have ${expectedCount} values`
+        );
+
+        info(`math_ops_fdlibm_2 has ${mathValues.length} values as expected`);
+      },
+      async () => {
+        const populated = TestUtils.topicObserved(
+          "user-characteristics-populating-data-done",
+          () => true
+        );
+        Services.obs.notifyObservers(
+          null,
+          "user-characteristics-testing-please-populate-data"
+        );
+        await populated;
+        GleanPings.userCharacteristics.submit();
+      }
+    )
+  );
+});