Bug 1940280 - Part 4: Add xpcshell test to run the test installer r=nalexander,nrishel,browser-installer-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D233406

browser/installer/windows/moz.build

@@ -17,3 +17,7 @@ if CONFIG["MOZ_DEFAULT_BROWSER_AGENT"]:
     DEFINES["MOZ_DEFAULT_BROWSER_AGENT"] = CONFIG["MOZ_DEFAULT_BROWSER_AGENT"]
 
 SPHINX_TREES["installer"] = "docs"
+
+DIRS += [
+    "nsis",
+]

browser/installer/windows/nsis/moz.build

@@ -0,0 +1,3 @@
+XPCSHELL_TESTS_MANIFESTS += [
+    "test/xpcshell/xpcshell.toml",
+]

browser/installer/windows/nsis/test/xpcshell/test_stub_installer.js

@@ -0,0 +1,53 @@
+/* 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/. */
+
+"use strict";
+
+const { Subprocess } = ChromeUtils.importESModule(
+  "resource://gre/modules/Subprocess.sys.mjs"
+);
+
+function _getBinaryUtil(binaryUtilName) {
+  let utilBin = Services.dirsvc.get("GreD", Ci.nsIFile);
+  // On macOS, GreD is .../Contents/Resources, and most binary utilities
+  // are located there, but certutil is in GreBinD (or .../Contents/MacOS),
+  // so we have to change the path accordingly.
+  if (binaryUtilName === "certutil") {
+    utilBin = Services.dirsvc.get("GreBinD", Ci.nsIFile);
+  }
+  utilBin.append(binaryUtilName + mozinfo.bin_suffix);
+  // If we're testing locally, the above works. If not, the server executable
+  // is in another location.
+  if (!utilBin.exists()) {
+    utilBin = Services.dirsvc.get("CurWorkD", Ci.nsIFile);
+    while (utilBin.path.includes("xpcshell")) {
+      utilBin = utilBin.parent;
+    }
+    utilBin.append("bin");
+    utilBin.append(binaryUtilName + mozinfo.bin_suffix);
+  }
+  // But maybe we're on Android, where binaries are in /data/local/xpcb.
+  if (!utilBin.exists()) {
+    utilBin.initWithPath("/data/local/xpcb/");
+    utilBin.append(binaryUtilName);
+  }
+  Assert.ok(utilBin.exists(), `Binary util ${binaryUtilName} should exist`);
+  return utilBin;
+}
+
+add_task(async function test_openFile() {
+  // "GreD" is the "Gecko runtime environment directory", which the build system knows as $(topobjdir)/dist/bin
+  const executableFile = _getBinaryUtil("test_stub_installer");
+  const command = executableFile.path;
+
+  const proc = await Subprocess.call({
+    command,
+  });
+
+  let { exitCode } = await proc.wait();
+  Assert.equal(0, exitCode);
+  let stdout = await proc.stdout.readString();
+  // Verify that the contents of the output file look OK.
+  Assert.equal("All stub installer tests passed", stdout);
+});

browser/installer/windows/nsis/test/xpcshell/xpcshell.toml

@@ -0,0 +1,4 @@
+[DEFAULT]
+
+["test_stub_installer.js"]
+run-if = ["!msix"]