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require 'testing_env'
require 'dependency'
class DependencyExpansionTests < Test::Unit::TestCase
def build_dep(name, deps=[])
dep = Dependency.new(name)
dep.stubs(:to_formula).returns(stub(:deps => deps))
dep
end
def setup
@foo = build_dep(:foo)
@bar = build_dep(:bar)
@baz = build_dep(:baz)
@qux = build_dep(:qux)
@deps = [@foo, @bar, @baz, @qux]
@f = stub(:deps => @deps)
end
def test_expand_yields_dependent_and_dep_pairs
i = 0
Dependency.expand(@f) do |dependent, dep|
assert_equal @f, dependent
assert_equal dep, @deps[i]
i += 1
end
end
def test_expand_no_block
assert_equal @deps, Dependency.expand(@f)
end
def test_expand_prune_all
assert_empty Dependency.expand(@f) { Dependency.prune }
end
def test_expand_selective_pruning
deps = Dependency.expand(@f) do |_, dep|
Dependency.prune if dep.name == :foo
end
assert_equal [@bar, @baz, @qux], deps
end
def test_expand_preserves_dependency_order
@foo.stubs(:to_formula).returns(stub(:deps => [@qux, @baz]))
assert_equal [@qux, @baz, @foo, @bar], Dependency.expand(@f)
end
def test_expand_skips_optionals_by_default
@foo.expects(:optional?).returns(true)
@f = stub(:deps => @deps, :build => stub(:with? => false))
assert_equal [@bar, @baz, @qux], Dependency.expand(@f)
end
def test_expand_keeps_recommendeds_by_default
@foo.expects(:recommended?).returns(true)
@f = stub(:deps => @deps, :build => stub(:with? => true))
assert_equal @deps, Dependency.expand(@f)
end
end
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