File: test_execjs.rb

package info (click to toggle)
ruby-execjs 2.2.1-1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 212 kB
  • ctags: 165
  • sloc: ruby: 805; makefile: 2
file content (173 lines) | stat: -rw-r--r-- 5,386 bytes parent folder | download | duplicates (2)
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
168
169
170
171
172
173
# -*- coding: utf-8 -*-
require "minitest/autorun"
require "execjs/module"

begin
  require "execjs"
rescue ExecJS::RuntimeUnavailable => e
  warn e
  exit 2
end

if defined? Minitest::Test
  Test = Minitest::Test
elsif defined? MiniTest::Unit::TestCase
  Test = MiniTest::Unit::TestCase
end

class TestExecJS < Test
  def test_runtime_available
    runtime = ExecJS::ExternalRuntime.new(command: "nonexistent")
    assert !runtime.available?

    runtime = ExecJS::ExternalRuntime.new(command: "ruby")
    assert runtime.available?
  end

  def test_runtime_assignment
    original_runtime = ExecJS.runtime
    runtime = ExecJS::ExternalRuntime.new(command: "nonexistent")
    assert_raises(ExecJS::RuntimeUnavailable) { ExecJS.runtime = runtime }
    assert_equal original_runtime, ExecJS.runtime

    runtime = ExecJS::ExternalRuntime.new(command: "ruby")
    ExecJS.runtime = runtime
    assert_equal runtime, ExecJS.runtime
  ensure
    ExecJS.runtime = original_runtime
  end

  def test_context_call
    context = ExecJS.compile("id = function(v) { return v; }")
    assert_equal "bar", context.call("id", "bar")
  end

  def test_nested_context_call
    context = ExecJS.compile("a = {}; a.b = {}; a.b.id = function(v) { return v; }")
    assert_equal "bar", context.call("a.b.id", "bar")
  end

  def test_context_call_missing_function
    context = ExecJS.compile("")
    assert_raises ExecJS::ProgramError do
      context.call("missing")
    end
  end

  def test_exec
    assert_nil ExecJS.exec("1")
    assert_nil ExecJS.exec("return")
    assert_nil ExecJS.exec("return null")
    assert_nil ExecJS.exec("return function() {}")
    assert_equal 0, ExecJS.exec("return 0")
    assert_equal true, ExecJS.exec("return true")
    assert_equal [1, 2], ExecJS.exec("return [1, 2]")
    assert_equal "hello", ExecJS.exec("return 'hello'")
    assert_equal({"a"=>1,"b"=>2}, ExecJS.exec("return {a:1,b:2}"))
    assert_equal "café", ExecJS.exec("return 'café'")
    assert_equal "☃", ExecJS.exec('return "☃"')
    assert_equal "☃", ExecJS.exec('return "\u2603"')
    assert_equal "\\", ExecJS.exec('return "\\\\"')
  end

  def test_eval
    assert_nil ExecJS.eval("")
    assert_nil ExecJS.eval(" ")
    assert_nil ExecJS.eval("null")
    assert_nil ExecJS.eval("function() {}")
    assert_equal 0, ExecJS.eval("0")
    assert_equal true, ExecJS.eval("true")
    assert_equal [1, 2], ExecJS.eval("[1, 2]")
    assert_equal [1, nil], ExecJS.eval("[1, function() {}]")
    assert_equal "hello", ExecJS.eval("'hello'")
    assert_equal ["red", "yellow", "blue"], ExecJS.eval("'red yellow blue'.split(' ')")
    assert_equal({"a"=>1,"b"=>2}, ExecJS.eval("{a:1,b:2}"))
    assert_equal({"a"=>true}, ExecJS.eval("{a:true,b:function (){}}"))
    assert_equal "café", ExecJS.eval("'café'")
    assert_equal "☃", ExecJS.eval('"☃"')
    assert_equal "☃", ExecJS.eval('"\u2603"')
    assert_equal "\\", ExecJS.eval('"\\\\"')
  end

  def test_encoding
    utf8 = Encoding.find('UTF-8')

    assert_equal utf8, ExecJS.exec("return 'hello'").encoding
    assert_equal utf8, ExecJS.eval("'☃'").encoding

    ascii = "'hello'".encode('US-ASCII')
    result = ExecJS.eval(ascii)
    assert_equal "hello", result
    assert_equal utf8, result.encoding

    assert_raises Encoding::UndefinedConversionError do
      binary = "\xde\xad\xbe\xef".force_encoding("BINARY")
      ExecJS.eval(binary)
    end
  end

  def test_encoding_compile
    utf8 = Encoding.find('UTF-8')

    context = ExecJS.compile("foo = function(v) { return '¶' + v; }".encode("ISO8859-15"))

    assert_equal utf8, context.exec("return foo('hello')").encoding
    assert_equal utf8, context.eval("foo('☃')").encoding

    ascii = "foo('hello')".encode('US-ASCII')
    result = context.eval(ascii)
    assert_equal "¶hello", result
    assert_equal utf8, result.encoding

    assert_raises Encoding::UndefinedConversionError do
      binary = "\xde\xad\xbe\xef".force_encoding("BINARY")
      context.eval(binary)
    end
  end

  def test_compile
    context = ExecJS.compile("foo = function() { return \"bar\"; }")
    assert_equal "bar", context.exec("return foo()")
    assert_equal "bar", context.eval("foo()")
    assert_equal "bar", context.call("foo")
  end

  def test_this_is_global_scope
    assert_equal true, ExecJS.eval("this === (function() {return this})()")
    assert_equal true, ExecJS.exec("return this === (function() {return this})()")
  end

  def test_commonjs_vars_are_undefined
    assert ExecJS.eval("typeof module == 'undefined'")
    assert ExecJS.eval("typeof exports == 'undefined'")
    assert ExecJS.eval("typeof require == 'undefined'")
  end

  def test_console_is_undefined
    assert ExecJS.eval("typeof console == 'undefined'")
  end

  def test_compile_large_scripts
    body = "var foo = 'bar';\n" * 100_000
    assert ExecJS.exec("function foo() {\n#{body}\n};\nreturn true")
  end

  def test_syntax_error
    assert_raises ExecJS::RuntimeError do
      ExecJS.exec(")")
    end
  end

  def test_thrown_exception
    assert_raises ExecJS::ProgramError do
      ExecJS.exec("throw 'hello'")
    end
  end

  def test_coffeescript
    require "open-uri"
    assert source = open("/usr/share/javascript/coffeescript/coffee-script.js").read
    context = ExecJS.compile(source)
    assert_equal 64, context.call("CoffeeScript.eval", "((x) -> x * x)(8)")
  end
end