1 files changed, 35 insertions, 0 deletions
diff --git a/test/dtrace/test_array_create.rb b/test/dtrace/test_array_create.rb
new file mode 100644
index 0000000000..22d52d4393
--- /dev/null
+++ b/test/dtrace/test_array_create.rb
@@ -0,0 +1,35 @@
+require 'dtrace/helper'
+
+module DTrace
+  class TestArrayCreate < TestCase
+    def test_lit
+      trap_probe(probe, '[]') { |_,rbfile,saw|
+        saw = saw.map(&:split).find_all { |num, file, line|
+          file == rbfile && num == '0'
+        }
+        assert_equal([rbfile], saw.map { |line| line[1] })
+        assert_equal(['1'], saw.map { |line| line[2] })
+      }
+    end
+
+    def test_many_lit
+      trap_probe(probe, '[1,2,3,4]') { |_,rbfile,saw|
+        saw = saw.map(&:split).find_all { |num, file, line|
+          file == rbfile && num == '4' && line == '1'
+        }
+        assert_operator saw.length, :>, 0
+      }
+    end
+
+    private
+    def probe type = 'array'
+      <<-eoprobe
+ruby$target:::#{type}-create
+/arg1/
+{
+  printf("%d %s %d\\n", arg0, copyinstr(arg1), arg2);
+}
+      eoprobe
+    end
+  end
+end