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require 'testing_env'
require 'requirement'
class RequirementTests < Test::Unit::TestCase
def test_accepts_single_tag
dep = Requirement.new(%w{bar})
assert_equal %w{bar}, dep.tags
end
def test_accepts_multiple_tags
dep = Requirement.new(%w{bar baz})
assert_equal %w{bar baz}.sort, dep.tags.sort
end
def test_preserves_symbol_tags
dep = Requirement.new([:build])
assert_equal [:build], dep.tags
end
def test_accepts_symbol_and_string_tags
dep = Requirement.new([:build, "bar"])
assert_equal [:build, "bar"], dep.tags
end
def test_dsl_fatal
req = Class.new(Requirement) { fatal true }.new
assert req.fatal?
end
def test_satisfy_true
req = Class.new(Requirement) do
satisfy(:build_env => false) { true }
end.new
assert req.satisfied?
end
def test_satisfy_false
req = Class.new(Requirement) do
satisfy(:build_env => false) { false }
end.new
assert !req.satisfied?
end
def test_satisfy_with_boolean
req = Class.new(Requirement) do
satisfy true
end.new
assert req.satisfied?
end
def test_satisfy_sets_up_build_env_by_default
req = Class.new(Requirement) do
env :userpaths
satisfy { true }
end.new
ENV.expects(:with_build_environment).yields.returns(true)
ENV.expects(:userpaths!)
assert req.satisfied?
end
def test_satisfy_build_env_can_be_disabled
req = Class.new(Requirement) do
satisfy(:build_env => false) { true }
end.new
ENV.expects(:with_build_environment).never
ENV.expects(:userpaths!).never
assert req.satisfied?
end
def test_infers_path_from_satisfy_result
which_path = Pathname.new("/foo/bar/baz")
req = Class.new(Requirement) do
satisfy { which_path }
end.new
ENV.expects(:with_build_environment).yields.returns(which_path)
ENV.expects(:userpaths!)
ENV.expects(:append).with("PATH", which_path.parent, ":")
req.modify_build_environment
end
def test_dsl_build
req = Class.new(Requirement) { build true }.new
assert req.build?
end
def test_infer_name_from_class
klass, const = self.class, :FooRequirement
klass.const_set(const, Class.new(Requirement))
assert_equal "foo", klass.const_get(const).new.name
ensure
klass.send(:remove_const, const) if klass.const_defined?(const)
end
def test_dsl_default_formula
req = Class.new(Requirement) { default_formula 'foo' }.new
assert req.default_formula?
end
def test_to_dependency
req = Class.new(Requirement) { default_formula 'foo' }.new
assert_equal Dependency.new('foo'), req.to_dependency
end
def test_to_dependency_calls_requirement_modify_build_environment
error = Class.new(StandardError)
req = Class.new(Requirement) do
default_formula 'foo'
satisfy { true }
env { raise error }
end.new
assert_raises(error) do
req.to_dependency.modify_build_environment
end
end
end
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