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var Uglify = require('../../');
var assert = require("assert");
var readFileSync = require("fs").readFileSync;
function read(path) {
return readFileSync(path, "utf8");
}
describe("minify", function() {
it("Should test basic sanity of minify with default options", function() {
var js = 'function foo(bar) { if (bar) return 3; else return 7; var u = not_called(); }';
var result = Uglify.minify(js);
assert.strictEqual(result.code, 'function foo(n){return n?3:7}');
});
describe("keep_quoted_props", function() {
it("Should preserve quotes in object literals", function() {
var js = 'var foo = {"x": 1, y: 2, \'z\': 3};';
var result = Uglify.minify(js, {
output: {
keep_quoted_props: true
}});
assert.strictEqual(result.code, 'var foo={"x":1,y:2,"z":3};');
});
it("Should preserve quote styles when quote_style is 3", function() {
var js = 'var foo = {"x": 1, y: 2, \'z\': 3};';
var result = Uglify.minify(js, {
output: {
keep_quoted_props: true,
quote_style: 3
}});
assert.strictEqual(result.code, 'var foo={"x":1,y:2,\'z\':3};');
});
it("Should not preserve quotes in object literals when disabled", function() {
var js = 'var foo = {"x": 1, y: 2, \'z\': 3};';
var result = Uglify.minify(js, {
output: {
keep_quoted_props: false,
quote_style: 3
}});
assert.strictEqual(result.code, 'var foo={x:1,y:2,z:3};');
});
});
describe("mangleProperties", function() {
it("Shouldn't mangle quoted properties", function() {
var js = 'a["foo"] = "bar"; a.color = "red"; x = {"bar": 10};';
var result = Uglify.minify(js, {
compress: {
properties: false
},
mangle: {
properties: {
keep_quoted: true
}
},
output: {
keep_quoted_props: true,
quote_style: 3
}
});
assert.strictEqual(result.code,
'a["foo"]="bar",a.a="red",x={"bar":10};');
});
});
describe("inSourceMap", function() {
it("Should read the given string filename correctly when sourceMapIncludeSources is enabled (#1236)", function() {
var result = Uglify.minify(read("./test/input/issue-1236/simple.js"), {
sourceMap: {
content: read("./test/input/issue-1236/simple.js.map"),
filename: "simple.min.js",
includeSources: true
}
});
var map = JSON.parse(result.map);
assert.equal(map.file, 'simple.min.js');
assert.equal(map.sourcesContent.length, 1);
assert.equal(map.sourcesContent[0],
'let foo = x => "foo " + x;\nconsole.log(foo("bar"));');
});
it("Should process inline source map", function() {
var code = Uglify.minify(read("./test/input/issue-520/input.js"), {
compress: { toplevel: true },
sourceMap: {
content: "inline",
url: "inline"
}
}).code + "\n";
assert.strictEqual(code, readFileSync("test/input/issue-520/output.js", "utf8"));
});
it("Should warn for missing inline source map", function() {
var warn_function = Uglify.AST_Node.warn_function;
var warnings = [];
Uglify.AST_Node.warn_function = function(txt) {
warnings.push(txt);
};
try {
var result = Uglify.minify(read("./test/input/issue-1323/sample.js"), {
mangle: false,
sourceMap: {
content: "inline"
}
});
assert.strictEqual(result.code, "var bar=function(){function foo(bar){return bar}return foo}();");
assert.strictEqual(warnings.length, 1);
assert.strictEqual(warnings[0], "inline source map not found");
} finally {
Uglify.AST_Node.warn_function = warn_function;
}
});
it("Should fail with multiple input and inline source map", function() {
var result = Uglify.minify([
read("./test/input/issue-520/input.js"),
read("./test/input/issue-520/output.js")
], {
sourceMap: {
content: "inline",
url: "inline"
}
});
var err = result.error;
assert.ok(err instanceof Error);
assert.strictEqual(err.stack.split(/\n/)[0], "Error: inline source map only works with singular input");
});
});
describe("sourceMapInline", function() {
it("should append source map to output js when sourceMapInline is enabled", function() {
var result = Uglify.minify('var a = function(foo) { return foo; };', {
sourceMap: {
url: "inline"
}
});
var code = result.code;
assert.strictEqual(code, "var a=function(n){return n};\n" +
"//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIjAiXSwibmFtZXMiOlsiYSIsImZvbyJdLCJtYXBwaW5ncyI6IkFBQUEsR0FBSUEsR0FBSSxTQUFTQyxHQUFPLE1BQU9BIn0=");
});
it("should not append source map to output js when sourceMapInline is not enabled", function() {
var result = Uglify.minify('var a = function(foo) { return foo; };');
var code = result.code;
assert.strictEqual(code, "var a=function(n){return n};");
});
});
describe("#__PURE__", function() {
it("should drop #__PURE__ hint after use", function() {
var result = Uglify.minify('//@__PURE__ comment1 #__PURE__ comment2\n foo(), bar();', {
output: {
comments: "all",
beautify: false,
}
});
var code = result.code;
assert.strictEqual(code, "// comment1 comment2\nbar();");
});
it("should not drop #__PURE__ hint if function is retained", function() {
var result = Uglify.minify("var a = /*#__PURE__*/(function(){ foo(); })();", {
output: {
comments: "all",
beautify: false,
}
});
var code = result.code;
assert.strictEqual(code, "var a=/*#__PURE__*/function(){foo()}();");
})
});
describe("JS_Parse_Error", function() {
it("should return syntax error", function() {
var result = Uglify.minify("function f(a{}");
var err = result.error;
assert.ok(err instanceof Error);
assert.strictEqual(err.stack.split(/\n/)[0], "SyntaxError: Unexpected token punc «{», expected punc «,»");
assert.strictEqual(err.filename, "0");
assert.strictEqual(err.line, 1);
assert.strictEqual(err.col, 12);
});
});
describe("global_defs", function() {
it("should throw for non-trivial expressions", function() {
var result = Uglify.minify("alert(42);", {
compress: {
global_defs: {
"@alert": "debugger"
}
}
});
var err = result.error;
assert.ok(err instanceof Error);
assert.strictEqual(err.stack.split(/\n/)[0], "Error: Can't handle expression: debugger");
});
});
});
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