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-rw-r--r--tools/lint/eslint/eslint-plugin-mozilla/tests/use-default-preference-values.js41
1 files changed, 41 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/tests/use-default-preference-values.js b/tools/lint/eslint/eslint-plugin-mozilla/tests/use-default-preference-values.js
new file mode 100644
index 0000000000..9aa37b1578
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/tests/use-default-preference-values.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+var rule = require("../lib/rules/use-default-preference-values");
+var RuleTester = require("eslint").RuleTester;
+
+const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: "latest" } });
+
+// ------------------------------------------------------------------------------
+// Tests
+// ------------------------------------------------------------------------------
+
+function invalidCode(code) {
+ let message = "provide a default value instead of using a try/catch block";
+ return { code, errors: [{ message, type: "TryStatement" }] };
+}
+
+let types = ["Bool", "Char", "Float", "Int"];
+let methods = types.map(type => "get" + type + "Pref");
+
+ruleTester.run("use-default-preference-values", rule, {
+ valid: [].concat(
+ methods.map(m => "blah = branch." + m + "('blah', true);"),
+ methods.map(m => "blah = branch." + m + "('blah');"),
+ methods.map(
+ m => "try { canThrow(); blah = branch." + m + "('blah'); } catch(e) {}"
+ )
+ ),
+
+ invalid: [].concat(
+ methods.map(m =>
+ invalidCode("try { blah = branch." + m + "('blah'); } catch(e) {}")
+ )
+ ),
+});