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var UglifyJS = require("../node");
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 === "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 === "Legacy octal escape sequences 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";');
});
});
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