Function verify

tests/lib/languages/js/source-code/source-code.js:1706–1814

* Assert `sourceCode.getDeclaredVariables(node)` is valid. * @param {string} code A code to check. * @param {string} type A type string of ASTNode. This method checks variables on the node of the type. * @param {Array >} expectedNamesList An array of expected variable names. Th

(code, type, expectedNamesList)

		 * @returns {void}
		 */
		function verify(code, type, expectedNamesList) {
			linter.verify(code, {
				plugins: {
					test: {
						rules: {
							checker: {
								create(context) {
									const sourceCode = context.sourceCode;

									/**
									 * Assert `sourceCode.getDeclaredVariables(node)` is empty.
									 * @param {ASTNode} node A node to check.
									 * @returns {void}
									 */
									function checkEmpty(node) {
										assert.strictEqual(
											0,
											sourceCode.getDeclaredVariables(
												node,
											).length,
										);
									}
									const rule = {
										Program: checkEmpty,
										EmptyStatement: checkEmpty,
										BlockStatement: checkEmpty,
										ExpressionStatement: checkEmpty,
										LabeledStatement: checkEmpty,
										BreakStatement: checkEmpty,
										ContinueStatement: checkEmpty,
										WithStatement: checkEmpty,
										SwitchStatement: checkEmpty,
										ReturnStatement: checkEmpty,
										ThrowStatement: checkEmpty,
										TryStatement: checkEmpty,
										WhileStatement: checkEmpty,
										DoWhileStatement: checkEmpty,
										ForStatement: checkEmpty,
										ForInStatement: checkEmpty,
										DebuggerStatement: checkEmpty,
										ThisExpression: checkEmpty,
										ArrayExpression: checkEmpty,
										ObjectExpression: checkEmpty,
										Property: checkEmpty,
										SequenceExpression: checkEmpty,
										UnaryExpression: checkEmpty,
										BinaryExpression: checkEmpty,
										AssignmentExpression: checkEmpty,
										UpdateExpression: checkEmpty,
										LogicalExpression: checkEmpty,
										ConditionalExpression: checkEmpty,
										CallExpression: checkEmpty,
										NewExpression: checkEmpty,
										MemberExpression: checkEmpty,
										SwitchCase: checkEmpty,
										Identifier: checkEmpty,
										Literal: checkEmpty,
										ForOfStatement: checkEmpty,