1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
var assert = require("assert");
var exec = require("child_process").exec;
var fs = require("fs");
var reduce_test = require("../reduce");
var semver = require("semver");
function read(path) {
return fs.readFileSync(path, "utf8");
}
describe("test/reduce.js", function() {
this.timeout(60000);
it("Should reduce test case", function() {
var result = reduce_test(read("test/input/reduce/unsafe_math.js"), {
compress: {
unsafe_math: true,
},
mangle: false,
}, {
verbose: false,
});
if (result.error) throw result.error;
assert.strictEqual(result.code, read("test/input/reduce/unsafe_math.reduced.js"));
});
it("Should eliminate unreferenced labels", function() {
var result = reduce_test(read("test/input/reduce/label.js"), {
mangle: false,
}, {
verbose: false,
});
if (result.error) throw result.error;
assert.strictEqual(result.code, read("test/input/reduce/label.reduced.js"));
});
it("Should handle test cases with --toplevel", function() {
var result = reduce_test([
"var Infinity = 42;",
"console.log(Infinity);",
].join("\n"), {
toplevel: true,
});
if (result.error) throw result.error;
assert.strictEqual(result.code, [
"// Can't reproduce test failure with minify options provided:",
"// {",
'// "toplevel": true',
"// }",
].join("\n"));
});
it("Should handle test result of NaN", function() {
var result = reduce_test("throw 0 / 0;");
if (result.error) throw result.error;
assert.strictEqual(result.code, [
"// Can't reproduce test failure with minify options provided:",
"// {",
'// "compress": {},',
'// "mangle": false',
"// }",
].join("\n"));
});
it("Should print correct output for irreducible test case", function() {
var result = reduce_test([
"console.log(function f(a) {",
" return f.length;",
"}());",
].join("\n"), {
compress: {
keep_fargs: false,
},
mangle: false,
});
if (result.error) throw result.error;
assert.strictEqual(result.code, [
"console.log(function f(a) {",
" return f.length;",
"}());",
"// output: 1",
"// ",
"// minify: 0",
"// ",
"// options: {",
'// "compress": {',
'// "keep_fargs": false',
"// },",
'// "mangle": false',
"// }",
].join("\n"));
});
it("Should fail when invalid option is supplied", function() {
var result = reduce_test("", {
compress: {
unsafe_regex: true,
},
});
var err = result.error;
assert.ok(err instanceof Error);
assert.strictEqual(err.stack.split(/\n/)[0], "DefaultsError: `unsafe_regex` is not a supported option");
});
it("Should report on test case with invalid syntax", function() {
var result = reduce_test("var 0 = 1;");
var err = result.error;
assert.ok(err instanceof Error);
assert.strictEqual(err.stack.split(/\n/)[0], "SyntaxError: Name expected");
});
it("Should format multi-line output correctly", function() {
var code = [
"var a = 0;",
"",
"for (var b in [ 1, 2, 3 ]) {",
" a = +a + 1 - .2;",
" console.log(a);",
"}",
].join("\n");
var result = reduce_test(code, {
compress: {
unsafe_math: true,
},
mangle: false,
});
if (result.error) throw result.error;
assert.strictEqual(result.code, [
code,
"// output: 0.8",
"// 1.6",
"// 2.4",
"// ",
"// minify: 0.8",
"// 1.6",
"// 2.4000000000000004",
"// ",
"// options: {",
'// "compress": {',
'// "unsafe_math": true',
"// },",
'// "mangle": false',
"// }",
].join("\n"));
});
it("Should reduce infinite loops with reasonable performance", function() {
if (semver.satisfies(process.version, "0.10")) return;
this.timeout(120000);
var code = [
"var a = 9007199254740992, b = 1;",
"",
"while (a++ + (1 - b) < a) {",
" 0;",
"}",
].join("\n");
var result = reduce_test(code, {
compress: {
unsafe_math: true,
},
mangle: false,
});
if (result.error) throw result.error;
assert.strictEqual(result.code.replace(/ timed out after [0-9]+ms/, " timed out."), [
code,
"// output: ",
"// minify: Error: Script execution timed out.",
"// options: {",
'// "compress": {',
'// "unsafe_math": true',
"// },",
'// "mangle": false',
"// }",
].join("\n"));
});
});
|
