1 files changed, 62 insertions, 0 deletions
diff --git a/toolkit/profile/xpcshell/test_previous_dedicated.js b/toolkit/profile/xpcshell/test_previous_dedicated.js
new file mode 100644
index 0000000000..6dd80b4028
--- /dev/null
+++ b/toolkit/profile/xpcshell/test_previous_dedicated.js
@@ -0,0 +1,62 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * If install.ini lists a default profile for this build but that profile no
+ * longer exists don't try to steal the old-style default even if it was used
+ * by this build. It means this install has previously used dedicated profiles.
+ */
+
+add_task(async () => {
+  let hash = xreDirProvider.getInstallHash();
+  let defaultProfile = makeRandomProfileDir("default");
+
+  writeCompatibilityIni(defaultProfile);
+
+  writeProfilesIni({
+    profiles: [
+      {
+        name: "default",
+        path: defaultProfile.leafName,
+        default: true,
+      },
+    ],
+    installs: {
+      [hash]: {
+        default: "foobar",
+      },
+    },
+  });
+
+  testStartsProfileManager();
+
+  let profileData = readProfilesIni();
+
+  Assert.ok(
+    profileData.options.startWithLastProfile,
+    "Should be set to start with the last profile."
+  );
+  Assert.equal(
+    profileData.profiles.length,
+    1,
+    "Should have the right number of profiles."
+  );
+
+  let profile = profileData.profiles[0];
+  Assert.equal(profile.name, "default", "Should have the right name.");
+  Assert.equal(
+    profile.path,
+    defaultProfile.leafName,
+    "Should be the original default profile."
+  );
+  Assert.ok(profile.default, "Should be marked as the old-style default.");
+
+  // We keep the data here so we don't steal on the next reboot...
+  Assert.equal(
+    Object.keys(profileData.installs).length,
+    1,
+    "Still list the broken reference."
+  );
+
+  checkProfileService(profileData);
+});