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Diffstat (limited to 'test/dtrace/test_string.rb')
-rw-r--r-- | test/dtrace/test_string.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/dtrace/test_string.rb b/test/dtrace/test_string.rb new file mode 100644 index 0000000000..ca8453d38d --- /dev/null +++ b/test/dtrace/test_string.rb @@ -0,0 +1,27 @@ +require 'dtrace/helper' + +module DTrace + class TestStringProbes < TestCase + def test_object_create_start_string_lit + trap_probe(probe, '"omglolwutbbq"') { |_,rbfile,saw| + saw = saw.map(&:split).find_all { |klass, file, line, len| + file == rbfile && len == '12' && line == '1' + } + assert_equal(%w{ String }, saw.map(&:first)) + assert_equal([rbfile], saw.map { |line| line[1] }) + assert_equal(['1'], saw.map { |line| line[2] }) + } + end + + private + def probe + <<-eoprobe +ruby$target:::string-create +/arg1/ +{ + printf("String %s %d %d\\n", copyinstr(arg1), arg2, arg0); +} + eoprobe + end + end +end |