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-rw-r--r--test/coverage/test_coverage.rb21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/coverage/test_coverage.rb b/test/coverage/test_coverage.rb
index 41a7e93402..b9a8dc96ce 100644
--- a/test/coverage/test_coverage.rb
+++ b/test/coverage/test_coverage.rb
@@ -287,6 +287,27 @@ class TestCoverage < Test::Unit::TestCase
}
end
+ def test_branch_coverage_for_safe_method_invocation
+ Dir.mktmpdir {|tmp|
+ Dir.chdir(tmp) {
+ File.open("test.rb", "w") do |f|
+ f.puts 'a = 10'
+ f.puts 'b = nil'
+ f.puts 'a&.abs'
+ f.puts 'b&.hoo'
+ end
+
+ assert_in_out_err(%w[-W0 -rcoverage], <<-"end;", ["{:branches=>{[:\"&.\", 0, 3]=>{[:then, 1, 3]=>1, [:else, 2, 3]=>0}, [:\"&.\", 3, 4]=>{[:then, 4, 4]=>0, [:else, 5, 4]=>1}}}"], [])
+ ENV["COVERAGE_EXPERIMENTAL_MODE"] = "true"
+ Coverage.start(branches: true)
+ tmp = Dir.pwd
+ require tmp + '/test.rb'
+ p Coverage.result[tmp + "/test.rb"]
+ end;
+ }
+ }
+ end
+
def test_method_coverage
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {