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require 'testing_env'
require 'download_strategy'
class ResourceDouble
attr_reader :url, :specs
def initialize(url="http://example.com/foo.tar.gz", specs={})
@url = url
@specs = specs
end
end
class AbstractDownloadStrategyTests < Test::Unit::TestCase
def setup
@name = "foo"
@resource = ResourceDouble.new
@strategy = AbstractDownloadStrategy.new(@name, @resource)
@args = %w{foo bar baz}
end
def test_expand_safe_system_args_with_explicit_quiet_flag
@args << { :quiet_flag => '--flag' }
expanded_args = @strategy.expand_safe_system_args(@args)
assert_equal %w{foo bar baz --flag}, expanded_args
end
def test_expand_safe_system_args_with_implicit_quiet_flag
expanded_args = @strategy.expand_safe_system_args(@args)
assert_equal %w{foo bar -q baz}, expanded_args
end
def test_expand_safe_system_args_does_not_mutate_argument
result = @strategy.expand_safe_system_args(@args)
assert_equal %w{foo bar baz}, @args
assert_not_same @args, result
end
end
class VCSDownloadStrategyTests < Test::Unit::TestCase
def setup
@resource = ResourceDouble.new("http://example.com/bar")
@strategy = VCSDownloadStrategy
end
def escaped(tag)
"#{ERB::Util.url_encode(@resource.url)}--#{tag}"
end
def test_explicit_name
downloader = @strategy.new("baz", @resource)
assert_equal "baz--foo", downloader.cache_filename("foo")
end
def test_empty_name
downloader = @strategy.new("", @resource)
assert_equal escaped("foo"), downloader.cache_filename("foo")
end
def test_unknown_name
downloader = @strategy.new("__UNKNOWN__", @resource)
assert_equal escaped("foo"), downloader.cache_filename("foo")
end
end
class DownloadStrategyDetectorTests < Test::Unit::TestCase
def setup
@d = DownloadStrategyDetector.new
end
def test_detect_git_download_startegy
@d = DownloadStrategyDetector.detect("git://example.com/foo.git")
assert_equal GitDownloadStrategy, @d
end
def test_default_to_curl_strategy
@d = DownloadStrategyDetector.detect(Object.new)
assert_equal CurlDownloadStrategy, @d
end
def test_raises_when_passed_unrecognized_strategy
assert_raises(TypeError) do
DownloadStrategyDetector.detect("foo", Class.new)
end
end
end
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