1 files changed, 38 insertions, 0 deletions
diff --git a/spec/ruby/shared/complex/float/arg.rb b/spec/ruby/shared/complex/float/arg.rb
new file mode 100644
index 0000000000..ca29796610
--- /dev/null
+++ b/spec/ruby/shared/complex/float/arg.rb
@@ -0,0 +1,38 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe :float_arg, shared: true do
+  it "returns NaN if NaN" do
+    f = nan_value
+    f.send(@method).nan?.should be_true
+  end
+
+  it "returns self if NaN" do
+    f = nan_value
+    f.send(@method).should equal(f)
+  end
+
+  it "returns 0 if positive" do
+    1.0.send(@method).should == 0
+  end
+
+  it "returns 0 if +0.0" do
+    0.0.send(@method).should == 0
+  end
+
+  it "returns 0 if +Infinity" do
+    infinity_value.send(@method).should == 0
+  end
+
+  it "returns Pi if negative" do
+    (-1.0).send(@method).should == Math::PI
+  end
+
+  # This was established in r23960
+  it "returns Pi if -0.0" do
+    (-0.0).send(@method).should == Math::PI
+  end
+
+  it "returns Pi if -Infinity" do
+    (-infinity_value).send(@method).should == Math::PI
+  end
+end