1 files changed, 19 insertions, 0 deletions
diff --git a/spec/ruby/library/base64/urlsafe_decode64_spec.rb b/spec/ruby/library/base64/urlsafe_decode64_spec.rb
new file mode 100644
index 0000000000..1b813ee1b9
--- /dev/null
+++ b/spec/ruby/library/base64/urlsafe_decode64_spec.rb
@@ -0,0 +1,19 @@
+require_relative '../../spec_helper'
+
+require 'base64'
+
+describe "Base64#urlsafe_decode64" do
+  it "uses '_' instead of '/'" do
+    decoded = Base64.urlsafe_decode64("V2hlcmUgYW0gST8gV2hvIGFtIEk_IEFtIEk_IEk_")
+    decoded.should == 'Where am I? Who am I? Am I? I?'
+  end
+
+  it "uses '-' instead of '+'" do
+    decoded = Base64.urlsafe_decode64('IkJlaW5nIGRpc2ludGVncmF0ZWQgbWFrZXMgbWUgdmUtcnkgYW4tZ3J5ISIgPGh1ZmYsIGh1ZmY-')
+    decoded.should == '"Being disintegrated makes me ve-ry an-gry!" <huff, huff>'
+  end
+
+  it "does not require padding" do
+    Base64.urlsafe_decode64("MQ").should == "1"
+  end
+end