1 files changed, 30 insertions, 0 deletions
diff --git a/devtools/shared/transport/tests/xpcshell/test_delimited_read.js b/devtools/shared/transport/tests/xpcshell/test_delimited_read.js
new file mode 100644
index 0000000000..fe94f81bbf
--- /dev/null
+++ b/devtools/shared/transport/tests/xpcshell/test_delimited_read.js
@@ -0,0 +1,30 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+const StreamUtils = require("resource://devtools/shared/transport/stream-utils.js");
+
+const StringInputStream = Components.Constructor(
+  "@mozilla.org/io/string-input-stream;1",
+  "nsIStringInputStream",
+  "setData"
+);
+
+function run_test() {
+  add_task(async function () {
+    await test_delimited_read("0123:", "0123:");
+    await test_delimited_read("0123:4567:", "0123:");
+    await test_delimited_read("012345678901:", "0123456789");
+    await test_delimited_read("0123/0123", "0123/0123");
+  });
+
+  run_next_test();
+}
+
+/** * Tests ***/
+
+function test_delimited_read(input, expected) {
+  input = new StringInputStream(input, input.length);
+  const result = StreamUtils.delimitedRead(input, ":", 10);
+  Assert.equal(result, expected);
+}