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var assert = require("assert");
var UglifyJS = require("../node");
describe("Number literals", function() {
it("Should allow legacy octal literals in non-strict mode", function() {
[
"'use strict'\n.slice()\n00",
'"use strict"\n.slice()\nvar foo = 00',
].forEach(function(input) {
UglifyJS.parse(input);
});
});
it("Should not allow legacy octal literals in strict mode", function() {
var inputs = [
'"use strict";00;',
'"use strict"; var foo = 00;',
];
var test = function(input) {
return function() {
UglifyJS.parse(input);
}
};
var error = function(e) {
return e instanceof UglifyJS.JS_Parse_Error
&& e.message === "Legacy octal literals are not allowed in strict mode";
};
for (var i = 0; i < inputs.length; i++) {
assert.throws(test(inputs[i]), error, inputs[i]);
}
});
it("Should parse binary, hexadecimal, octal and underscore correctly", function() {
[
"42",
"4_2",
"052",
"0o52",
"0O52",
"0o5_2",
"0x2a",
"0X2A",
"0x2_a",
"0b101010",
"0B101010",
"0b101_010",
"0.0000000042e+10",
"0.0000000042E+10",
"0.0_000000042e+10",
"0.0000000042e+1_0",
"0.000_000_004_2e+1_0",
"0.000_000_004_2e+1_0-0B101_010+0x2_A-0o5_2+4_2",
].forEach(function(code) {
var result = UglifyJS.minify(code, {
compress: {
expression: true,
},
});
if (result.error) throw result.error;
assert.strictEqual(result.code, "42;");
});
});
it("Should reject invalid use of underscore", function() {
[
"_42",
"_+42",
"+_42",
].forEach(function(code) {
var node = UglifyJS.parse(code, {
expression: true,
});
assert.ok(!node.is_constant(), code);
assert.ok(!(node instanceof UglifyJS.AST_Statement), code);
});
[
"42_",
"4__2",
"0_52",
"05_2",
"0_o52",
"0o_52",
"0.0000000042_e10",
"0.0000000042e_10",
"0.0000000042e_+10",
"0.0000000042e+_10",
].forEach(function(code) {
assert.throws(function() {
UglifyJS.parse(code);
}, function(e) {
return e instanceof UglifyJS.JS_Parse_Error;
}, code);
});
});
it("Should reject invalid syntax under expression=true", function() {
assert.throws(function() {
UglifyJS.parse("42.g", {
expression: true,
});
}, function(e) {
return e instanceof UglifyJS.JS_Parse_Error;
});
});
});
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