require 'dtrace/helper' module DTrace class TestFunctionEntry < TestCase def test_function_entry probe = <<-eoprobe ruby$target:::function-entry /arg0 && arg1 && arg2/ { printf("%s %s %s %d\\n", copyinstr(arg0), copyinstr(arg1), copyinstr(arg2), arg3); } eoprobe trap_probe(probe, ruby_program) { |d_file, rb_file, probes| foo_calls = probes.map { |line| line.split }.find_all { |row| row.first == 'Foo' && row[1] == 'foo' } assert_equal 10, foo_calls.length line = '2' foo_calls.each { |f| assert_equal line, f[3] } foo_calls.each { |f| assert_equal rb_file, f[2] } } end def test_function_return probe = <<-eoprobe ruby$target:::function-return /arg0 && arg1 && arg2/ { printf("%s %s %s %d\\n", copyinstr(arg0), copyinstr(arg1), copyinstr(arg2), arg3); } eoprobe trap_probe(probe, ruby_program) { |d_file, rb_file, probes| foo_calls = probes.map { |line| line.split }.find_all { |row| row.first == 'Foo' && row[1] == 'foo' } assert_equal 10, foo_calls.length line = '2' foo_calls.each { |f| assert_equal line, f[3] } foo_calls.each { |f| assert_equal rb_file, f[2] } } end private def ruby_program <<-eoruby class Foo def foo; end end x = Foo.new 10.times { x.foo } eoruby end end end