1 files changed, 41 insertions, 0 deletions
diff --git a/comm/mailnews/base/test/unit/test_folderStringProperties.js b/comm/mailnews/base/test/unit/test_folderStringProperties.js
new file mode 100644
index 0000000000..8f508625b7
--- /dev/null
+++ b/comm/mailnews/base/test/unit/test_folderStringProperties.js
@@ -0,0 +1,41 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Test the nsIMsgFolder .(get|set)StringProperty methods.
+ */
+
+add_task(function test_string_properties() {
+  localAccountUtils.loadLocalMailAccount();
+  let root = localAccountUtils.incomingServer.rootMsgFolder;
+
+  // Ensure unset properties return an error.
+  Assert.throws(function () {
+    root.getStringProperty("this-property-doesnt-exist");
+  }, /NS_ERROR_.*/);
+
+  // Check basic set/get operation.
+  root.setStringProperty("test-property", "wibble");
+  Assert.equal(root.getStringProperty("test-property"), "wibble");
+
+  // Keys are case-sensitive.
+  Assert.throws(function () {
+    root.getStringProperty("TEST-PROPERTY");
+  }, /NS_ERROR_.*/);
+
+  // Values with non-latin chars?
+  root.setStringProperty("test-property", "日本語");
+  Assert.equal(root.getStringProperty("test-property"), "日本語");
+
+  // Check that things stay as strings, even if they are values that could
+  // be misinterpreted in JSON.
+  root.setStringProperty("test-property", "");
+  Assert.equal(root.getStringProperty("test-property"), "");
+
+  root.setStringProperty("test-property", "null");
+  Assert.equal(root.getStringProperty("test-property"), "null");
+
+  root.setStringProperty("test-property", "0");
+  Assert.equal(root.getStringProperty("test-property"), "0");
+});