1 files changed, 58 insertions, 0 deletions
diff --git a/intl/uconv/tests/unit/test_unEscapeNonAsciiURI.js b/intl/uconv/tests/unit/test_unEscapeNonAsciiURI.js
new file mode 100644
index 0000000000..f447959244
--- /dev/null
+++ b/intl/uconv/tests/unit/test_unEscapeNonAsciiURI.js
@@ -0,0 +1,58 @@
+// Tests for nsITextToSubURI.unEscapeNonAsciiURI
+function run_test() {
+  // Tests whether nsTextToSubURI does UTF-16 unescaping (it shouldn't)
+  const testURI = "data:text/html,%FE%FF";
+  Assert.equal(
+    Services.textToSubURI.unEscapeNonAsciiURI("UTF-16", testURI),
+    testURI
+  );
+
+  // Tests whether incomplete multibyte sequences throw.
+  const tests = [
+    {
+      input: "http://example.com/?p=%E9",
+      throws: Cr.NS_ERROR_ILLEGAL_INPUT,
+    },
+    {
+      input: "http://example.com/?p=%E9%80",
+      throws: Cr.NS_ERROR_ILLEGAL_INPUT,
+    },
+    {
+      input: "http://example.com/?p=%E9%80%80",
+      expected: "http://example.com/?p=\u9000",
+    },
+    {
+      input: "http://example.com/?p=%E9e",
+      throws: Cr.NS_ERROR_ILLEGAL_INPUT,
+    },
+    {
+      input: "http://example.com/?p=%E9%E9",
+      throws: Cr.NS_ERROR_ILLEGAL_INPUT,
+    },
+    {
+      input: "http://example.com/?name=M%FCller/",
+      throws: Cr.NS_ERROR_ILLEGAL_INPUT,
+    },
+    {
+      input: "http://example.com/?name=M%C3%BCller/",
+      expected: "http://example.com/?name=Müller/",
+    },
+  ];
+
+  for (const t of tests) {
+    if (t.throws !== undefined) {
+      let thrown = undefined;
+      try {
+        Services.textToSubURI.unEscapeNonAsciiURI("UTF-8", t.input);
+      } catch (e) {
+        thrown = e.result;
+      }
+      Assert.equal(thrown, t.throws);
+    } else {
+      Assert.equal(
+        Services.textToSubURI.unEscapeNonAsciiURI("UTF-8", t.input),
+        t.expected
+      );
+    }
+  }
+}