1 files changed, 146 insertions, 0 deletions
diff --git a/services/common/tests/unit/test_utils_convert_string.js b/services/common/tests/unit/test_utils_convert_string.js
new file mode 100644
index 0000000000..fcfd874994
--- /dev/null
+++ b/services/common/tests/unit/test_utils_convert_string.js
@@ -0,0 +1,146 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// A wise line of Greek verse, and the utf-8 byte encoding.
+// N.b., Greek begins at utf-8 ce 91
+const TEST_STR = "πόλλ' οἶδ' ἀλώπηξ, ἀλλ' ἐχῖνος ἓν μέγα";
+const TEST_HEX = h(
+  "cf 80 cf 8c ce bb ce bb   27 20 ce bf e1 bc b6 ce" +
+    "b4 27 20 e1 bc 80 ce bb   cf 8e cf 80 ce b7 ce be" +
+    "2c 20 e1 bc 80 ce bb ce   bb 27 20 e1 bc 90 cf 87" +
+    "e1 bf 96 ce bd ce bf cf   82 20 e1 bc 93 ce bd 20" +
+    "ce bc ce ad ce b3 ce b1"
+);
+// Integer byte values for the above
+const TEST_BYTES = [
+  207, 128, 207, 140, 206, 187, 206, 187, 39, 32, 206, 191, 225, 188, 182, 206,
+  180, 39, 32, 225, 188, 128, 206, 187, 207, 142, 207, 128, 206, 183, 206, 190,
+  44, 32, 225, 188, 128, 206, 187, 206, 187, 39, 32, 225, 188, 144, 207, 135,
+  225, 191, 150, 206, 189, 206, 191, 207, 130, 32, 225, 188, 147, 206, 189, 32,
+  206, 188, 206, 173, 206, 179, 206, 177,
+];
+
+add_test(function test_compress_string() {
+  const INPUT = "hello";
+
+  let result = CommonUtils.convertString(INPUT, "uncompressed", "deflate");
+  Assert.equal(result.length, 13);
+
+  let result2 = CommonUtils.convertString(INPUT, "uncompressed", "deflate");
+  Assert.equal(result, result2);
+
+  let result3 = CommonUtils.convertString(result, "deflate", "uncompressed");
+  Assert.equal(result3, INPUT);
+
+  run_next_test();
+});
+
+add_test(function test_compress_utf8() {
+  const INPUT =
+    "Árvíztűrő tükörfúrógép いろはにほへとちりぬるを Pijamalı hasta, yağız şoföre çabucak güvendi.";
+  let inputUTF8 = CommonUtils.encodeUTF8(INPUT);
+
+  let compressed = CommonUtils.convertString(
+    inputUTF8,
+    "uncompressed",
+    "deflate"
+  );
+  let uncompressed = CommonUtils.convertString(
+    compressed,
+    "deflate",
+    "uncompressed"
+  );
+
+  Assert.equal(uncompressed, inputUTF8);
+
+  let outputUTF8 = CommonUtils.decodeUTF8(uncompressed);
+  Assert.equal(outputUTF8, INPUT);
+
+  run_next_test();
+});
+
+add_test(function test_bad_argument() {
+  let failed = false;
+  try {
+    CommonUtils.convertString(null, "uncompressed", "deflate");
+  } catch (ex) {
+    failed = true;
+    Assert.ok(ex.message.startsWith("Input string must be defined"));
+  } finally {
+    Assert.ok(failed);
+  }
+
+  run_next_test();
+});
+
+add_task(function test_stringAsHex() {
+  Assert.equal(TEST_HEX, CommonUtils.stringAsHex(TEST_STR));
+});
+
+add_task(function test_hexAsString() {
+  Assert.equal(TEST_STR, CommonUtils.hexAsString(TEST_HEX));
+});
+
+add_task(function test_hexToBytes() {
+  let bytes = CommonUtils.hexToBytes(TEST_HEX);
+  Assert.equal(TEST_BYTES.length, bytes.length);
+  // Ensure that the decimal values of each byte are correct
+  Assert.ok(arraysEqual(TEST_BYTES, CommonUtils.stringToByteArray(bytes)));
+});
+
+add_task(function test_bytesToHex() {
+  // Create a list of our character bytes from the reference int values
+  let bytes = CommonUtils.byteArrayToString(TEST_BYTES);
+  Assert.equal(TEST_HEX, CommonUtils.bytesAsHex(bytes));
+});
+
+add_task(function test_stringToBytes() {
+  Assert.ok(
+    arraysEqual(
+      TEST_BYTES,
+      CommonUtils.stringToByteArray(CommonUtils.stringToBytes(TEST_STR))
+    )
+  );
+});
+
+add_task(function test_stringRoundTrip() {
+  Assert.equal(
+    TEST_STR,
+    CommonUtils.hexAsString(CommonUtils.stringAsHex(TEST_STR))
+  );
+});
+
+add_task(function test_hexRoundTrip() {
+  Assert.equal(
+    TEST_HEX,
+    CommonUtils.stringAsHex(CommonUtils.hexAsString(TEST_HEX))
+  );
+});
+
+add_task(function test_byteArrayRoundTrip() {
+  Assert.ok(
+    arraysEqual(
+      TEST_BYTES,
+      CommonUtils.stringToByteArray(CommonUtils.byteArrayToString(TEST_BYTES))
+    )
+  );
+});
+
+// turn formatted test vectors into normal hex strings
+function h(hexStr) {
+  return hexStr.replace(/\s+/g, "");
+}
+
+function arraysEqual(a1, a2) {
+  if (a1.length !== a2.length) {
+    return false;
+  }
+  for (let i = 0; i < a1.length; i++) {
+    if (a1[i] !== a2[i]) {
+      return false;
+    }
+  }
+  return true;
+}