diff options
Diffstat (limited to 'tools/lint/eslint/eslint-plugin-mozilla/tests/balanced-listeners.js')
-rw-r--r-- | tools/lint/eslint/eslint-plugin-mozilla/tests/balanced-listeners.js | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/tests/balanced-listeners.js b/tools/lint/eslint/eslint-plugin-mozilla/tests/balanced-listeners.js new file mode 100644 index 0000000000..b7cd4e2c2f --- /dev/null +++ b/tools/lint/eslint/eslint-plugin-mozilla/tests/balanced-listeners.js @@ -0,0 +1,100 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/publicdomain/zero/1.0/ */ + +"use strict"; + +// ------------------------------------------------------------------------------ +// Requirements +// ------------------------------------------------------------------------------ + +var rule = require("../lib/rules/balanced-listeners"); +var RuleTester = require("eslint").RuleTester; + +const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: "latest" } }); + +// ------------------------------------------------------------------------------ +// Tests +// ------------------------------------------------------------------------------ + +function error(code, functionName, type) { + return { + code, + errors: [ + { + messageId: "noCorresponding", + type: "Identifier", + data: { functionName, type }, + }, + ], + }; +} + +ruleTester.run("balanced-listeners", rule, { + valid: [ + "elt.addEventListener('event', handler);" + + "elt.removeEventListener('event', handler);", + + "elt.addEventListener('event', handler, true);" + + "elt.removeEventListener('event', handler, true);", + + "elt.addEventListener('event', handler, false);" + + "elt.removeEventListener('event', handler, false);", + + "elt.addEventListener('event', handler);" + + "elt.removeEventListener('event', handler, false);", + + "elt.addEventListener('event', handler, false);" + + "elt.removeEventListener('event', handler);", + + "elt.addEventListener('event', handler, {capture: false});" + + "elt.removeEventListener('event', handler);", + + "elt.addEventListener('event', handler);" + + "elt.removeEventListener('event', handler, {capture: false});", + + "elt.addEventListener('event', handler, {capture: true});" + + "elt.removeEventListener('event', handler, true);", + + "elt.addEventListener('event', handler, true);" + + "elt.removeEventListener('event', handler, {capture: true});", + + "elt.addEventListener('event', handler, {once: true});", + + "elt.addEventListener('event', handler, {once: true, capture: true});", + ], + invalid: [ + error( + "elt.addEventListener('click', handler, false);", + "removeEventListener", + "click" + ), + + error( + "elt.addEventListener('click', handler, false);" + + "elt.removeEventListener('click', handler, true);", + "removeEventListener", + "click" + ), + + error( + "elt.addEventListener('click', handler, {capture: false});" + + "elt.removeEventListener('click', handler, true);", + "removeEventListener", + "click" + ), + + error( + "elt.addEventListener('click', handler, {capture: true});" + + "elt.removeEventListener('click', handler);", + "removeEventListener", + "click" + ), + + error( + "elt.addEventListener('click', handler, true);" + + "elt.removeEventListener('click', handler);", + "removeEventListener", + "click" + ), + ], +}); |