1 files changed, 55 insertions, 0 deletions
diff --git a/testing/mochitest/tests/browser/browser_getTestFile.js b/testing/mochitest/tests/browser/browser_getTestFile.js
new file mode 100644
index 0000000000..d1b0287dde
--- /dev/null
+++ b/testing/mochitest/tests/browser/browser_getTestFile.js
@@ -0,0 +1,55 @@
+function test() {
+  let { Promise } = ChromeUtils.import("resource://gre/modules/Promise.jsm");
+  const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
+  let decoder = new TextDecoder();
+
+  waitForExplicitFinish();
+
+  SimpleTest.doesThrow(function() {
+    getTestFilePath("/browser_getTestFile.js");
+  }, "getTestFilePath rejects absolute paths");
+
+  Promise.all([
+    OS.File.exists(getTestFilePath("browser_getTestFile.js")).then(function(
+      exists
+    ) {
+      ok(exists, "getTestFilePath consider the path as being relative");
+    }),
+
+    OS.File.exists(getTestFilePath("./browser_getTestFile.js")).then(function(
+      exists
+    ) {
+      ok(exists, "getTestFilePath also accepts explicit relative path");
+    }),
+
+    OS.File.exists(getTestFilePath("./browser_getTestFileTypo.xul")).then(
+      function(exists) {
+        ok(!exists, "getTestFilePath do not throw if the file doesn't exists");
+      }
+    ),
+
+    OS.File.read(getTestFilePath("test-dir/test-file")).then(function(array) {
+      is(
+        decoder.decode(array),
+        "foo\n",
+        "getTestFilePath can reach sub-folder files 1/2"
+      );
+    }),
+
+    OS.File.read(getTestFilePath("./test-dir/test-file")).then(function(array) {
+      is(
+        decoder.decode(array),
+        "foo\n",
+        "getTestFilePath can reach sub-folder files 2/2"
+      );
+    }),
+  ]).then(
+    function() {
+      finish();
+    },
+    function(error) {
+      ok(false, error);
+      finish();
+    }
+  );
+}