1 files changed, 51 insertions, 0 deletions
diff --git a/toolkit/components/places/tests/unit/test_utils_timeConversion.js b/toolkit/components/places/tests/unit/test_utils_timeConversion.js
new file mode 100644
index 0000000000..c71effe709
--- /dev/null
+++ b/toolkit/components/places/tests/unit/test_utils_timeConversion.js
@@ -0,0 +1,51 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Check time conversion utils.
+ */
+
+add_task(async function toDate() {
+  Assert.throws(() => PlacesUtils.toDate(), /Invalid value/, "Should throw");
+  Assert.throws(() => PlacesUtils.toDate(NaN), /Invalid value/, "Should throw");
+  Assert.throws(
+    () => PlacesUtils.toDate(null),
+    /Invalid value/,
+    "Should throw"
+  );
+  Assert.throws(() => PlacesUtils.toDate("1"), /Invalid value/, "Should throw");
+
+  const now = Date.now();
+  const usecs = now * 1000;
+  Assert.deepEqual(PlacesUtils.toDate(usecs), new Date(now));
+});
+
+add_task(async function toPRTime() {
+  Assert.throws(() => PlacesUtils.toPRTime(), /TypeError/, "Should throw");
+  Assert.throws(() => PlacesUtils.toPRTime(null), /TypeError/, "Should throw");
+  Assert.throws(
+    () => PlacesUtils.toPRTime({}),
+    /Invalid value/,
+    "Should throw"
+  );
+  Assert.throws(
+    () => PlacesUtils.toPRTime(NaN),
+    /Invalid value/,
+    "Should throw"
+  );
+  Assert.throws(
+    () => PlacesUtils.toPRTime(new Date(NaN)),
+    /Invalid value/,
+    "Should throw"
+  );
+  Assert.throws(
+    () => PlacesUtils.toPRTime(new URL("https://test.moz")),
+    /Invalid value/,
+    "Should throw"
+  );
+
+  const now = Date.now();
+  const usecs = now * 1000;
+  Assert.strictEqual(PlacesUtils.toPRTime(now), usecs);
+  Assert.strictEqual(PlacesUtils.toPRTime(new Date(now)), usecs);
+});