2 files changed, 413 insertions, 0 deletions
diff --git a/accessible/tests/browser/telemetry/browser.toml b/accessible/tests/browser/telemetry/browser.toml
new file mode 100644
index 0000000000..3606d1c099
--- /dev/null
+++ b/accessible/tests/browser/telemetry/browser.toml
@@ -0,0 +1,6 @@
+[DEFAULT]
+subsuite = "a11y"
+prefs = ["javascript.options.asyncstack_capture_debuggee_only=false"]
+
+["browser_HCM_telemetry.js"]
+support-files = ["!/browser/components/preferences/tests/head.js"]
diff --git a/accessible/tests/browser/telemetry/browser_HCM_telemetry.js b/accessible/tests/browser/telemetry/browser_HCM_telemetry.js
new file mode 100644
index 0000000000..60ac3be82f
--- /dev/null
+++ b/accessible/tests/browser/telemetry/browser_HCM_telemetry.js
@@ -0,0 +1,407 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+Services.scriptloader.loadSubScript(
+  "chrome://mochitests/content/browser/browser/components/preferences/tests/head.js",
+  this
+);
+
+const { TelemetryTestUtils } = ChromeUtils.importESModule(
+  "resource://testing-common/TelemetryTestUtils.sys.mjs"
+);
+
+registerCleanupFunction(() => {
+  reset();
+});
+
+function reset() {
+  // This (manually) runs after every task in this test suite.
+  // We have to add this in because the initial state of
+  // `document_color_use` affects the initial state of
+  // `foreground_color`/`background_color` which can change our
+  // starting telem samples. This ensures each tasks makes no lasting
+  // state changes.
+  Services.prefs.clearUserPref("browser.display.document_color_use");
+  Services.prefs.clearUserPref("browser.display.permit_backplate");
+  Services.prefs.clearUserPref("browser.display.use_system_colors");
+  Services.prefs.clearUserPref("layout.css.always_underline_links");
+  Services.telemetry.clearEvents();
+  TelemetryTestUtils.assertNumberOfEvents(0);
+  Services.prefs.clearUserPref("browser.display.foreground_color");
+  Services.prefs.clearUserPref("browser.display.background_color");
+}
+
+async function openColorsDialog() {
+  await openPreferencesViaOpenPreferencesAPI("general", { leaveOpen: true });
+  const colorsButton =
+    gBrowser.selectedBrowser.contentDocument.getElementById("colors");
+
+  const dialogOpened = promiseLoadSubDialog(
+    "chrome://browser/content/preferences/dialogs/colors.xhtml"
+  );
+  colorsButton.doCommand();
+
+  return dialogOpened;
+}
+
+async function closeColorsDialog(dialogWin) {
+  const dialogClosed = BrowserTestUtils.waitForEvent(dialogWin, "unload");
+  const button = dialogWin.document
+    .getElementById("ColorsDialog")
+    .getButton("accept");
+  button.focus();
+  button.doCommand();
+  return dialogClosed;
+}
+
+function verifyBackplate(expectedValue) {
+  TelemetryTestUtils.assertScalar(
+    TelemetryTestUtils.getProcessScalars("parent", false, true),
+    "a11y.backplate",
+    expectedValue,
+    "Backplate scalar is logged as " + expectedValue
+  );
+}
+
+function verifyUseSystemColors(expectedValue) {
+  const snapshot = TelemetryTestUtils.getProcessScalars("parent", false, false);
+  ok("a11y.use_system_colors" in snapshot, "System color usage was logged.");
+  TelemetryTestUtils.assertScalar(
+    snapshot,
+    "a11y.use_system_colors",
+    expectedValue,
+    "System colors scalar is logged as " + expectedValue
+  );
+}
+
+async function verifyAlwaysUnderlineLinks(expectedValue) {
+  let snapshot = TelemetryTestUtils.getProcessScalars("parent", false, false);
+  ok(
+    "a11y.always_underline_links" in snapshot,
+    "Always underline links was logged."
+  );
+  await TestUtils.waitForCondition(() => {
+    snapshot = TelemetryTestUtils.getProcessScalars("parent", false, false);
+    return snapshot["a11y.always_underline_links"] == expectedValue;
+  }, "Always underline links has expected value " + expectedValue);
+}
+
+// The magic numbers below are the uint32_t values representing RGB white
+// and RGB black respectively. They're directly captured as nsColors and
+// follow the same bit-shift pattern.
+function testIsWhite(pref, snapshot) {
+  ok(pref in snapshot, "Scalar must be present.");
+  is(snapshot[pref], 4294967295, "Scalar is logged as white");
+}
+
+function testIsBlack(pref, snapshot) {
+  ok(pref in snapshot, "Scalar must be present.");
+  is(snapshot[pref], 4278190080, "Scalar is logged as black");
+}
+
+async function setForegroundColor(color) {
+  // Note: we set the foreground and background colors by modifying this pref
+  // instead of setting the value attribute on the color input direclty.
+  // This is because setting the value of the input with setAttribute
+  // doesn't generate the correct event to save the new value to the prefs
+  // store, so we have to do it ourselves.
+  Services.prefs.setStringPref("browser.display.foreground_color", color);
+}
+
+async function setBackgroundColor(color) {
+  Services.prefs.setStringPref("browser.display.background_color", color);
+}
+
+add_task(async function testInit() {
+  const dialogWin = await openColorsDialog();
+  const menulistHCM = dialogWin.document.getElementById("useDocumentColors");
+  if (AppConstants.platform == "win") {
+    is(
+      Services.prefs.getBoolPref("browser.display.use_system_colors"),
+      true,
+      "Use system colours pref is init'd correctly"
+    );
+    verifyUseSystemColors(true);
+
+    is(
+      menulistHCM.value,
+      "0",
+      "HCM menulist should be set to only with HCM theme on startup for windows"
+    );
+
+    // Verify correct default value
+    TelemetryTestUtils.assertKeyedScalar(
+      TelemetryTestUtils.getProcessScalars("parent", true, true),
+      "a11y.theme",
+      "default",
+      false
+    );
+  } else {
+    is(
+      Services.prefs.getBoolPref("browser.display.use_system_colors"),
+      false,
+      "Use system colours pref is init'd correctly"
+    );
+    verifyUseSystemColors(false);
+
+    is(
+      menulistHCM.value,
+      "1",
+      "HCM menulist should be set to never on startup for non-windows platforms"
+    );
+
+    // Verify correct default value
+    TelemetryTestUtils.assertKeyedScalar(
+      TelemetryTestUtils.getProcessScalars("parent", true, true),
+      "a11y.theme",
+      "always",
+      false
+    );
+
+    await closeColorsDialog(dialogWin);
+
+    // We should not have logged any colors
+    let snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+    ok(
+      !("a11y.HCM_foreground" in snapshot),
+      "Foreground color shouldn't be present."
+    );
+    ok(
+      !("a11y.HCM_background" in snapshot),
+      "Background color shouldn't be present."
+    );
+
+    // If we change the colors, our probes should not be updated
+    await setForegroundColor("#ffffff"); // white
+    await setBackgroundColor("#000000"); // black
+
+    snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+    ok(
+      !("a11y.HCM_foreground" in snapshot),
+      "Foreground color shouldn't be present."
+    );
+    ok(
+      !("a11y.HCM_background" in snapshot),
+      "Background color shouldn't be present."
+    );
+  }
+
+  reset();
+  gBrowser.removeCurrentTab();
+});
+
+add_task(async function testSetAlways() {
+  const dialogWin = await openColorsDialog();
+  const menulistHCM = dialogWin.document.getElementById("useDocumentColors");
+
+  menulistHCM.doCommand();
+  const newOption = dialogWin.document.getElementById("documentColorAlways");
+  newOption.click();
+
+  is(menulistHCM.value, "2", "HCM menulist should be set to always");
+
+  await closeColorsDialog(dialogWin);
+
+  // Verify correct initial value
+  let snapshot = TelemetryTestUtils.getProcessScalars("parent", true, true);
+  TelemetryTestUtils.assertKeyedScalar(snapshot, "a11y.theme", "never", false);
+
+  snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+  // We should have logged the default foreground and background colors
+  testIsWhite("a11y.HCM_background", snapshot);
+  testIsBlack("a11y.HCM_foreground", snapshot);
+
+  // If we change the colors, our probes update on non-windows platforms.
+  // On windows, useSystemColors is on by default, and so the values we set here
+  // will not be written to our telemetry probes, because they capture
+  // used colors, not the values of browser.foreground/background_color directly.
+
+  setBackgroundColor("#000000");
+  snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+  if (AppConstants.platform == "win") {
+    testIsWhite("a11y.HCM_background", snapshot);
+  } else {
+    testIsBlack("a11y.HCM_background", snapshot);
+  }
+
+  setForegroundColor("#ffffff");
+  snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+  if (AppConstants.platform == "win") {
+    testIsBlack("a11y.HCM_foreground", snapshot);
+  } else {
+    testIsWhite("a11y.HCM_foreground", snapshot);
+  }
+
+  reset();
+  gBrowser.removeCurrentTab();
+});
+
+add_task(async function testSetDefault() {
+  const dialogWin = await openColorsDialog();
+  const menulistHCM = dialogWin.document.getElementById("useDocumentColors");
+
+  menulistHCM.doCommand();
+  const newOption = dialogWin.document.getElementById("documentColorAutomatic");
+  newOption.click();
+
+  is(menulistHCM.value, "0", "HCM menulist should be set to default");
+
+  await closeColorsDialog(dialogWin);
+
+  // Verify correct initial value
+  TelemetryTestUtils.assertKeyedScalar(
+    TelemetryTestUtils.getProcessScalars("parent", true, true),
+    "a11y.theme",
+    "default",
+    false
+  );
+
+  // We should not have logged any colors
+  let snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+  ok(
+    !("a11y.HCM_foreground" in snapshot),
+    "Foreground color shouldn't be present."
+  );
+  ok(
+    !("a11y.HCM_background" in snapshot),
+    "Background color shouldn't be present."
+  );
+
+  // If we change the colors, our probes should not be updated anywhere
+  await setForegroundColor("#ffffff"); // white
+  await setBackgroundColor("#000000"); // black
+
+  snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+  ok(
+    !("a11y.HCM_foreground" in snapshot),
+    "Foreground color shouldn't be present."
+  );
+  ok(
+    !("a11y.HCM_background" in snapshot),
+    "Background color shouldn't be present."
+  );
+
+  reset();
+  gBrowser.removeCurrentTab();
+});
+
+add_task(async function testSetNever() {
+  const dialogWin = await openColorsDialog();
+  const menulistHCM = dialogWin.document.getElementById("useDocumentColors");
+
+  menulistHCM.doCommand();
+  const newOption = dialogWin.document.getElementById("documentColorNever");
+  newOption.click();
+
+  is(menulistHCM.value, "1", "HCM menulist should be set to never");
+
+  await closeColorsDialog(dialogWin);
+
+  // Verify correct initial value
+  TelemetryTestUtils.assertKeyedScalar(
+    TelemetryTestUtils.getProcessScalars("parent", true, true),
+    "a11y.theme",
+    "always",
+    false
+  );
+
+  // We should not have logged any colors
+  let snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+  ok(
+    !("a11y.HCM_foreground" in snapshot),
+    "Foreground color shouldn't be present."
+  );
+  ok(
+    !("a11y.HCM_background" in snapshot),
+    "Background color shouldn't be present."
+  );
+
+  // If we change the colors, our probes should not be updated anywhere
+  await setForegroundColor("#ffffff"); // white
+  await setBackgroundColor("#000000"); // black
+
+  snapshot = TelemetryTestUtils.getProcessScalars("parent", false, true);
+  ok(
+    !("a11y.HCM_foreground" in snapshot),
+    "Foreground color shouldn't be present."
+  );
+  ok(
+    !("a11y.HCM_background" in snapshot),
+    "Background color shouldn't be present."
+  );
+
+  reset();
+  gBrowser.removeCurrentTab();
+});
+
+add_task(async function testBackplate() {
+  is(
+    Services.prefs.getBoolPref("browser.display.permit_backplate"),
+    true,
+    "Backplate is init'd to true"
+  );
+
+  Services.prefs.setBoolPref("browser.display.permit_backplate", false);
+  // Verify correct recorded value
+  verifyBackplate(false);
+
+  Services.prefs.setBoolPref("browser.display.permit_backplate", true);
+  // Verify correct recorded value
+  verifyBackplate(true);
+});
+
+add_task(async function testSystemColors() {
+  let expectedInitVal = false;
+  if (AppConstants.platform == "win") {
+    expectedInitVal = true;
+  }
+
+  const dialogWin = await openColorsDialog();
+  const checkbox = dialogWin.document.getElementById("browserUseSystemColors");
+  checkbox.click();
+
+  is(
+    checkbox.checked,
+    !expectedInitVal,
+    "System colors checkbox should be modified"
+  );
+
+  await closeColorsDialog(dialogWin);
+
+  verifyUseSystemColors(!expectedInitVal);
+
+  reset();
+  gBrowser.removeCurrentTab();
+});
+
+add_task(async function testAlwaysUnderlineLinks() {
+  const expectedInitVal = false;
+  await verifyAlwaysUnderlineLinks(expectedInitVal);
+  await openPreferencesViaOpenPreferencesAPI("general", { leaveOpen: true });
+  const checkbox = gBrowser.selectedBrowser.contentDocument.getElementById(
+    "alwaysUnderlineLinks"
+  );
+  is(
+    checkbox.checked,
+    expectedInitVal,
+    "Always underline links checkbox has correct initial state"
+  );
+  checkbox.click();
+
+  is(
+    checkbox.checked,
+    !expectedInitVal,
+    "Always underline links checkbox should be modified"
+  );
+  is(
+    Services.prefs.getBoolPref("layout.css.always_underline_links"),
+    !expectedInitVal,
+    "Always underline links pref reflects new value."
+  );
+  await verifyAlwaysUnderlineLinks(!expectedInitVal);
+  reset();
+  gBrowser.removeCurrentTab();
+});