1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/core/symbol/downcase_spec.rb b/spec/ruby/core/symbol/downcase_spec.rb
new file mode 100644
index 0000000000..76418aa9da
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+++ b/spec/ruby/core/symbol/downcase_spec.rb
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+# -*- encoding: utf-8 -*-
+require_relative '../../spec_helper'
+
+describe "Symbol#downcase" do
+  it "returns a Symbol" do
+    :glark.downcase.should.instance_of?(Symbol)
+  end
+
+  it "converts uppercase ASCII characters to their lowercase equivalents" do
+    :lOwEr.downcase.should == :lower
+  end
+
+  it "leaves lowercase Unicode characters as they were" do
+    "\u{E0}Bc".to_sym.downcase.should == :"àbc"
+  end
+
+  it "uncapitalizes all Unicode characters" do
+    "ÄÖÜ".to_sym.downcase.should == :"äöü"
+    "AOU".to_sym.downcase.should == :"aou"
+  end
+
+  it "leaves non-alphabetic ASCII characters as they were" do
+    "Glark?!?".to_sym.downcase.should == :"glark?!?"
+  end
+end