var UglifyJS = require('../../'); var assert = require("assert"); describe("String literals", function() { it("Should throw syntax error if a string literal contains a newline", function() { var inputs = [ "'\n'", "'\r'", '"\r\n"', "'\u2028'", '"\u2029"' ]; var test = function(input) { return function() { var ast = UglifyJS.parse(input); }; }; var error = function(e) { return e instanceof UglifyJS.JS_Parse_Error && e.message === "SyntaxError: Unterminated string constant"; }; for (var input in inputs) { assert.throws(test(inputs[input]), error); } }); it("Should not throw syntax error if a string has a line continuation", function() { var output = UglifyJS.parse('var a = "a\\\nb";').print_to_string(); assert.equal(output, 'var a="ab";'); }); it("Should throw error in strict mode if string contains escaped octalIntegerLiteral", function() { var inputs = [ '"use strict";\n"\\76";', '"use strict";\nvar foo = "\\76";', '"use strict";\n"\\1";', '"use strict";\n"\\07";', '"use strict";\n"\\011"' ]; var test = function(input) { return function() { var output = UglifyJS.parse(input); } }; var error = function(e) { return e instanceof UglifyJS.JS_Parse_Error && e.message === "SyntaxError: Octal literals are not allowed in strict mode"; } for (var input in inputs) { assert.throws(test(inputs[input]), error); } }); it("Should not throw error outside strict mode if string contains escaped octalIntegerLiteral", function() { var tests = [ ['"\\76";', ';">";'], ['"\\0"', '"\\0";'], ['"\\08"', '"\\08";'], ['"\\008"', '"\\08";'], ['"\\0008"', '"\\08";'], ['"use strict" === "use strict";\n"\\76";', '"use strict"==="use strict";">";'], ['"use\\\n strict";\n"\\07";', ';"use strict";"\07";'] ]; for (var test in tests) { var output = UglifyJS.parse(tests[test][0]).print_to_string(); assert.equal(output, tests[test][1]); } }); it("Should not throw error when digit is 8 or 9", function() { assert.equal(UglifyJS.parse('"use strict";"\\08"').print_to_string(), '"use strict";"\\08";'); assert.equal(UglifyJS.parse('"use strict";"\\09"').print_to_string(), '"use strict";"\\09";'); }); });