1 files changed, 16 insertions, 0 deletions
diff --git a/jni/ruby/test/test_cmath.rb b/jni/ruby/test/test_cmath.rb
new file mode 100644
index 0000000..1e1824a
--- /dev/null
+++ b/jni/ruby/test/test_cmath.rb
@@ -0,0 +1,16 @@
+require 'test/unit'
+require 'cmath'
+
+class TestCMath < Test::Unit::TestCase
+  def test_sqrt
+    assert_equal CMath.sqrt(1.0.i), CMath.sqrt(1.i), '[ruby-core:31672]'
+  end
+
+  def test_acos
+    assert_in_delta CMath.acos(Complex(3, 4)), Complex(0.9368124611557199,-2.305509031243477)
+  end
+
+  def test_cbrt_returns_principal_value_of_cube_root
+    assert_equal CMath.cbrt(-8), (-8)**(1.0/3), '#3676'
+  end
+end