1 files changed, 32 insertions, 0 deletions
diff --git a/modules/libjar/test/unit/test_bug278262.js b/modules/libjar/test/unit/test_bug278262.js
new file mode 100644
index 0000000000..3a5e7e951c
--- /dev/null
+++ b/modules/libjar/test/unit/test_bug278262.js
@@ -0,0 +1,32 @@
+// Regression test for bug 278262 - JAR URIs should resolve relative URIs in the base section.
+
+const path = "data/test_bug333423.zip";
+
+function test_relative_sub() {
+  var ios = Services.io;
+  var spec = "jar:" + ios.newFileURI(do_get_file(path)).spec + "!/";
+  var base = ios.newURI(spec);
+  var uri = ios.newURI("../modules/libjar", null, base);
+
+  // This is the URI we expect to see.
+  var expected =
+    "jar:" + ios.newFileURI(do_get_file(path)).spec + "!/modules/libjar";
+
+  Assert.equal(uri.spec, expected);
+}
+
+function test_relative_base() {
+  var ios = Services.io;
+  var base = ios.newFileURI(do_get_file("data/empty"));
+  var uri = ios.newURI("jar:../" + path + "!/", null, base);
+
+  // This is the URI we expect to see.
+  var expected = "jar:" + ios.newFileURI(do_get_file(path)).spec + "!/";
+
+  Assert.equal(uri.spec, expected);
+}
+
+function run_test() {
+  test_relative_sub();
+  test_relative_base();
+}