Add bin and edit workflow

bin/gems/facets-3.1.0/test/standard/math/test_abs.rb

@@ -0,0 +1,13 @@
+require 'facets/math/abs'
+
+test_case Math do
+
+  class_method :abs do
+    test do
+      Math.abs(-3.1).assert == 3.1
+      Math.abs( 0.0).assert == 0.0
+      Math.abs( 3.1).assert == 3.1
+    end
+  end
+
+end