1require File.expand_path('../helper', __FILE__)
2require 'open3'
3
4class TestRakeBacktrace < Rake::TestCase
5
6  def setup
7    super
8
9    skip 'tmpdir is suppressed in backtrace' if
10      Dir.pwd =~ Rake::Backtrace::SUPPRESS_PATTERN
11  end
12
13  # TODO: factor out similar code in test_rake_functional.rb
14  def rake(*args)
15    Open3.popen3(RUBY, "-I", @rake_lib, @rake_exec, *args) { |_, _, err, _|
16      err.read
17    }
18  end
19
20  def invoke(task_name)
21    rake task_name.to_s
22  end
23
24  def test_single_collapse
25    rakefile %q{
26      task :foo do
27        raise "foooo!"
28      end
29    }
30
31    lines = invoke(:foo).split("\n")
32
33    assert_equal "rake aborted!", lines[0]
34    assert_equal "foooo!", lines[1]
35    assert_something_matches %r!\A#{Regexp.quote Dir.pwd}/Rakefile:3!i, lines
36    assert_something_matches %r!\ATasks:!, lines
37  end
38
39  def test_multi_collapse
40    rakefile %q{
41      task :foo do
42        Rake.application.invoke_task(:bar)
43      end
44      task :bar do
45        raise "barrr!"
46      end
47    }
48
49    lines = invoke(:foo).split("\n")
50
51    assert_equal "rake aborted!", lines[0]
52    assert_equal "barrr!", lines[1]
53    assert_something_matches %r!\A#{Regexp.quote Dir.pwd}/Rakefile:6!i, lines
54    assert_something_matches %r!\A#{Regexp.quote Dir.pwd}/Rakefile:3!i, lines
55    assert_something_matches %r!\ATasks:!, lines
56  end
57
58  def test_suppress_option
59    rakefile %q{
60      task :baz do
61        raise "bazzz!"
62      end
63    }
64
65    lines = rake("baz").split("\n")
66    assert_equal "rake aborted!", lines[0]
67    assert_equal "bazzz!", lines[1]
68    assert_something_matches %r!Rakefile!i, lines
69
70    lines = rake("--suppress-backtrace", ".ak.file", "baz").split("\n")
71    assert_equal "rake aborted!", lines[0]
72    assert_equal "bazzz!", lines[1]
73    refute_match %r!Rakefile!i, lines[2]
74  end
75
76  private
77
78  # Assert that the pattern matches at least one line in +lines+.
79  def assert_something_matches(pattern, lines)
80    lines.each do |ln|
81      if pattern =~ ln
82        assert_match pattern, ln
83        return
84      end
85    end
86    flunk "expected #{pattern.inspect} to match something in:\n    #{lines.join("\n    ")}"
87  end
88
89end
90