brew/Library/Homebrew/test/test_requirement.rb
Jack Nagel b322020338 Reduce allocations in dependency construction
By always passing around a single, unnested array rather than splatting
and then defensively flattening and compacting things, we can avoid
allocating a bunch of unnecessary arrays. This gives a performance boost
of roughly 4% when enumerating 2500 formulae, and has the side effect of
cleaning up the dependency API.
2013-05-06 16:08:50 -05:00

100 lines
2.3 KiB
Ruby

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
end