1 files changed, 110 insertions, 0 deletions
diff --git a/toolkit/components/antitracking/test/browser/browser_partitionedDOMCache.js b/toolkit/components/antitracking/test/browser/browser_partitionedDOMCache.js
new file mode 100644
index 0000000000..93fc71b11e
--- /dev/null
+++ b/toolkit/components/antitracking/test/browser/browser_partitionedDOMCache.js
@@ -0,0 +1,110 @@
+const APS_PREF =
+  "privacy.partition.always_partition_third_party_non_cookie_storage";
+
+PartitionedStorageHelper.runTest(
+  "DOMCache",
+  async (win3rdParty, win1stParty, allowed) => {
+    await win3rdParty.caches.open("wow").then(
+      _ => {
+        ok(allowed, "DOM Cache cannot be used!");
+      },
+      _ => {
+        ok(!allowed, "DOM Cache cannot be used!");
+      }
+    );
+
+    await win1stParty.caches.open("wow").then(
+      _ => {
+        ok(true, "DOM Cache should be available");
+      },
+      _ => {
+        ok(false, "DOM Cache should be available");
+      }
+    );
+  },
+
+  async _ => {
+    await new Promise(resolve => {
+      Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value =>
+        resolve()
+      );
+    });
+  },
+
+  [[APS_PREF, false]],
+
+  { runInSecureContext: true }
+);
+
+PartitionedStorageHelper.runTest(
+  "DOMCache",
+  async (win3rdParty, win1stParty, allowed) => {
+    await win1stParty.caches.open("wow").then(
+      async cache => {
+        ok(true, "DOM Cache should be available");
+        await cache.add("/");
+      },
+      _ => {
+        ok(false, "DOM Cache should be available");
+      }
+    );
+
+    await win3rdParty.caches.open("wow").then(
+      async cache => {
+        ok(true, "DOM Cache can be used!");
+        is(undefined, await cache.match("/"), "DOM Cache is partitioned");
+      },
+      _ => {
+        ok(false, "DOM Cache cannot be used!");
+      }
+    );
+  },
+
+  async _ => {
+    await new Promise(resolve => {
+      Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value =>
+        resolve()
+      );
+    });
+  },
+
+  [[APS_PREF, true]],
+
+  { runInSecureContext: true }
+);
+
+// Test that DOM cache is not available in PBM.
+PartitionedStorageHelper.runTest(
+  "DOMCache",
+  async (win3rdParty, win1stParty, allowed) => {
+    await win1stParty.caches.open("wow").then(
+      async cache => {
+        ok(false, "DOM Cache should not be available in PBM");
+      },
+      _ => {
+        ok(true, "DOM Cache should not be available in PBM");
+      }
+    );
+
+    await win3rdParty.caches.open("wow").then(
+      async cache => {
+        ok(false, "DOM Cache should not be available in PBM");
+      },
+      _ => {
+        ok(true, "DOM Cache should not be available in PBM");
+      }
+    );
+  },
+
+  async _ => {
+    await new Promise(resolve => {
+      Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value =>
+        resolve()
+      );
+    });
+  },
+
+  [],
+
+  { runInSecureContext: true, runInPrivateWindow: true }
+);