119 lines
3.9 KiB
JavaScript
119 lines
3.9 KiB
JavaScript
var assert = require("assert");
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var UglifyJS = require("../node");
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describe("String literals", function() {
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it("Should throw syntax error if a string literal contains a newline", function() {
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var inputs = [
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"'\n'",
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"'\r'",
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'"\r\n"',
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"'\u2028'",
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'"\u2029"'
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];
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var test = function(input) {
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return function() {
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var ast = UglifyJS.parse(input);
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};
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};
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var error = function(e) {
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return e instanceof UglifyJS.JS_Parse_Error
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&& e.message === "Unterminated string constant";
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};
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for (var input in inputs) {
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assert.throws(test(inputs[input]), error);
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}
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});
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it("Should not throw syntax error if a string has a line continuation", function() {
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var output = UglifyJS.parse('var a = "a\\\nb";').print_to_string();
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assert.equal(output, 'var a="ab";');
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});
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it("Should throw error in strict mode if string contains escaped octalIntegerLiteral", function() {
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var inputs = [
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'"use strict";\n"\\76";',
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'"use strict";\nvar foo = "\\76";',
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'"use strict";\n"\\1";',
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'"use strict";\n"\\07";',
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'"use strict";\n"\\011"'
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];
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var test = function(input) {
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return function() {
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var output = UglifyJS.parse(input);
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}
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};
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var error = function(e) {
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return e instanceof UglifyJS.JS_Parse_Error
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&& e.message === "Legacy octal escape sequences are not allowed in strict mode";
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}
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for (var input in inputs) {
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assert.throws(test(inputs[input]), error);
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}
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});
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it("Should not throw error outside strict mode if string contains escaped octalIntegerLiteral", function() {
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var tests = [
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[ ';"\\76";', ';">";' ],
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[ ';"\\0";', ';"\\0";' ],
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[ ';"\\08"', ';"\\x008";' ],
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[ ';"\\008"', ';"\\x008";' ],
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[ ';"\\0008"', ';"\\x008";' ],
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[ ';"use\\\n strict";\n"\\07";', ';"use strict";"\07";' ],
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[ '"use strict" === "use strict";\n"\\76";', '"use strict"==="use strict";">";' ],
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];
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for (var test in tests) {
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var output = UglifyJS.parse(tests[test][0]).print_to_string();
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assert.equal(output, tests[test][1]);
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}
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});
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it("Should not throw error when digit is 8 or 9", function() {
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assert.equal(UglifyJS.parse('"use strict";;"\\08"').print_to_string(), '"use strict";;"\\x008";');
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assert.equal(UglifyJS.parse('"use strict";;"\\09"').print_to_string(), '"use strict";;"\\x009";');
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});
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it("Should not unescape unpaired surrogates", function() {
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var code = [];
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for (var i = 0; i <= 0xF; i++) {
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code.push("\\u000" + i.toString(16));
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}
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for (;i <= 0xFF; i++) {
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code.push("\\u00" + i.toString(16));
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}
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for (;i <= 0xFFF; i++) {
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code.push("\\u0" + i.toString(16));
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}
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for (; i <= 0xFFFF; i++) {
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code.push("\\u" + i.toString(16));
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}
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code = ';"' + code.join() + '"';
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var normal = UglifyJS.minify(code, {
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compress: false,
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mangle: false,
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output: {
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ascii_only: false
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}
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});
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if (normal.error) throw normal.error;
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assert.ok(code.length > normal.code.length);
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assert.strictEqual(eval(code), eval(normal.code));
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var ascii = UglifyJS.minify(code, {
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compress: false,
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mangle: false,
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output: {
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ascii_only: false
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}
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});
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if (ascii.error) throw ascii.error;
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assert.ok(code.length > ascii.code.length);
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assert.strictEqual(eval(code), eval(ascii.code));
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});
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});
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