1 files changed, 80 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/tests/use-static-import.js b/tools/lint/eslint/eslint-plugin-mozilla/tests/use-static-import.js
new file mode 100644
index 0000000000..656e83e0e9
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/tests/use-static-import.js
@@ -0,0 +1,80 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+var rule = require("../lib/rules/use-static-import");
+var RuleTester = require("eslint").RuleTester;
+
+const ruleTester = new RuleTester({
+  parserOptions: { ecmaVersion: "latest", sourceType: "module" },
+});
+
+// ------------------------------------------------------------------------------
+// Tests
+// ------------------------------------------------------------------------------
+
+function callError() {
+  return [{ messageId: "useStaticImport", type: "VariableDeclaration" }];
+}
+
+ruleTester.run("use-static-import", rule, {
+  valid: [
+    {
+      // Already converted, no issues.
+      code: 'import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";',
+      filename: "test.sys.mjs",
+    },
+    {
+      // Inside an if statement.
+      code: 'if (foo) { const { XPCOMUtils } = ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs") }',
+      filename: "test.sys.mjs",
+    },
+    {
+      // Inside a function.
+      code: 'function foo() { const { XPCOMUtils } = ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs") }',
+      filename: "test.sys.mjs",
+    },
+    {
+      // importESModule with two args cannot be converted.
+      code: 'const { f } = ChromeUtils.importESModule("some/module.sys.mjs", { loadInDevToolsLoader : true });',
+      filename: "test.sys.mjs",
+    },
+    {
+      // A non-system file attempting to import a system file should not be
+      // converted.
+      code: 'const { XPCOMUtils } = ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs")',
+      filename: "test.mjs",
+    },
+  ],
+  invalid: [
+    {
+      // Simple import in system module should be converted.
+      code: 'const { XPCOMUtils } = ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs")',
+      errors: callError(),
+      filename: "test.sys.mjs",
+      output:
+        'import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs"',
+    },
+    {
+      // Should handle rewritten variables as well.
+      code: 'const { XPCOMUtils: foo } = ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs")',
+      errors: callError(),
+      filename: "test.sys.mjs",
+      output:
+        'import { XPCOMUtils as foo } from "resource://gre/modules/XPCOMUtils.sys.mjs"',
+    },
+    {
+      // Should handle multiple variables.
+      code: 'const { foo, XPCOMUtils } = ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs")',
+      errors: callError(),
+      filename: "test.sys.mjs",
+      output:
+        'import { foo, XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs"',
+    },
+  ],
+});