require "test/unit" require "coverage" require "tmpdir" class TestCoverage < Test::Unit::TestCase def test_result_without_start assert_raise(RuntimeError) {Coverage.result} end def test_result_with_nothing Coverage.start result = Coverage.result assert_kind_of(Hash, result) result.each do |key, val| assert_kind_of(String, key) assert_kind_of(Array, val) end end def test_restarting_coverage loaded_features = $".dup Dir.mktmpdir {|tmp| Dir.chdir(tmp) { File.open("test.rb", "w") do |f| f.puts <<-EOS def coverage_test_method :ok end EOS end Coverage.start require tmp + '/test.rb' Coverage.result Coverage.start coverage_test_method assert_equal 1, Coverage.result.size } } ensure $".replace loaded_features end end