1 files changed, 80 insertions, 0 deletions
diff --git a/browser/extensions/formautofill/test/unit/test_isCJKName.js b/browser/extensions/formautofill/test/unit/test_isCJKName.js
new file mode 100644
index 0000000000..f0e50b60f9
--- /dev/null
+++ b/browser/extensions/formautofill/test/unit/test_isCJKName.js
@@ -0,0 +1,80 @@
+/**
+ * Tests the "isCJKName" function of FormAutofillNameUtils object.
+ */
+
+"use strict";
+
+var FormAutofillNameUtils;
+add_setup(async () => {
+  ({ FormAutofillNameUtils } = ChromeUtils.importESModule(
+    "resource://gre/modules/shared/FormAutofillNameUtils.sys.mjs"
+  ));
+});
+
+// Test cases is initially copied from
+// https://cs.chromium.org/chromium/src/components/autofill/core/browser/autofill_data_util_unittest.cc
+const TESTCASES = [
+  {
+    // Non-CJK language with only ASCII characters.
+    fullName: "Homer Jay Simpson",
+    expectedResult: false,
+  },
+  {
+    // Non-CJK language with some ASCII characters.
+    fullName: "Éloïse Paré",
+    expectedResult: false,
+  },
+  {
+    // Non-CJK language with no ASCII characters.
+    fullName: "Σωκράτης",
+    expectedResult: false,
+  },
+  {
+    // (Simplified) Chinese name, Unihan.
+    fullName: "刘翔",
+    expectedResult: true,
+  },
+  {
+    // (Simplified) Chinese name, Unihan, with an ASCII space.
+    fullName: "成 龙",
+    expectedResult: true,
+  },
+  {
+    // Korean name, Hangul.
+    fullName: "송지효",
+    expectedResult: true,
+  },
+  {
+    // Korean name, Hangul, with an 'IDEOGRAPHIC SPACE' (U+3000).
+    fullName: "김　종국",
+    expectedResult: true,
+  },
+  {
+    // Japanese name, Unihan.
+    fullName: "山田貴洋",
+    expectedResult: true,
+  },
+  {
+    // Japanese name, Katakana, with a 'KATAKANA MIDDLE DOT' (U+30FB).
+    fullName: "ビル・ゲイツ",
+    expectedResult: true,
+  },
+  {
+    // Japanese name, Katakana, with a 'MIDDLE DOT' (U+00B7) (likely a typo).
+    fullName: "ビル·ゲイツ",
+    expectedResult: true,
+  },
+  {
+    // CJK names don't have a middle name, so a 3-part name is bogus to us.
+    fullName: "반 기 문",
+    expectedResult: false,
+  },
+];
+
+add_task(async function test_isCJKName() {
+  TESTCASES.forEach(testcase => {
+    info("Starting testcase: " + testcase.fullName);
+    let result = FormAutofillNameUtils._isCJKName(testcase.fullName);
+    Assert.equal(result, testcase.expectedResult);
+  });
+});