1 files changed, 73 insertions, 0 deletions
diff --git a/toolkit/modules/subprocess/test/xpcshell/test_subprocess_pathSearch.js b/toolkit/modules/subprocess/test/xpcshell/test_subprocess_pathSearch.js
new file mode 100644
index 000000000..5eb4cd412
--- /dev/null
+++ b/toolkit/modules/subprocess/test/xpcshell/test_subprocess_pathSearch.js
@@ -0,0 +1,73 @@
+"use strict";
+
+let envService = Cc["@mozilla.org/process/environment;1"].getService(Ci.nsIEnvironment);
+
+const PYTHON = envService.get("PYTHON");
+
+const PYTHON_BIN = OS.Path.basename(PYTHON);
+const PYTHON_DIR = OS.Path.dirname(PYTHON);
+
+const DOES_NOT_EXIST = OS.Path.join(OS.Constants.Path.tmpDir,
+                                    "ThisPathDoesNotExist");
+
+const PATH_SEP = AppConstants.platform == "win" ? ";" : ":";
+
+
+add_task(function* test_pathSearchAbsolute() {
+  let env = {};
+
+  let path = yield Subprocess.pathSearch(PYTHON, env);
+  equal(path, PYTHON, "Full path resolves even with no PATH.");
+
+  env.PATH = "";
+  path = yield Subprocess.pathSearch(PYTHON, env);
+  equal(path, PYTHON, "Full path resolves even with empty PATH.");
+
+  yield Assert.rejects(
+    Subprocess.pathSearch(DOES_NOT_EXIST, env),
+    function(e) {
+      equal(e.errorCode, Subprocess.ERROR_BAD_EXECUTABLE,
+            "Got the expected error code");
+      return /File at path .* does not exist, or is not (executable|a normal file)/.test(e.message);
+    },
+    "Absolute path should throw for a nonexistent execuable");
+});
+
+
+add_task(function* test_pathSearchRelative() {
+  let env = {};
+
+  yield Assert.rejects(
+    Subprocess.pathSearch(PYTHON_BIN, env),
+    function(e) {
+      equal(e.errorCode, Subprocess.ERROR_BAD_EXECUTABLE,
+            "Got the expected error code");
+      return /Executable not found:/.test(e.message);
+    },
+    "Relative path should not be found when PATH is missing");
+
+  env.PATH = [DOES_NOT_EXIST, PYTHON_DIR].join(PATH_SEP);
+
+  let path = yield Subprocess.pathSearch(PYTHON_BIN, env);
+  equal(path, PYTHON, "Correct executable should be found in the path");
+});
+
+
+add_task({
+  skip_if: () => AppConstants.platform != "win",
+}, function* test_pathSearch_PATHEXT() {
+  ok(PYTHON_BIN.endsWith(".exe"), "Python executable must end with .exe");
+
+  const python_bin = PYTHON_BIN.slice(0, -4);
+
+  let env = {
+    PATH: PYTHON_DIR,
+    PATHEXT: [".com", ".exe", ".foobar"].join(";"),
+  };
+
+  let path = yield Subprocess.pathSearch(python_bin, env);
+  equal(path, PYTHON, "Correct executable should be found in the path, with guessed extension");
+});
+// IMPORTANT: Do not add any tests beyond this point without removing
+// the `skip_if` condition from the previous task, or it will prevent
+// all succeeding tasks from running when it does not match.