1 files changed, 29 insertions, 0 deletions
diff --git a/spec/ruby/library/base64/decode64_spec.rb b/spec/ruby/library/base64/decode64_spec.rb
new file mode 100644
index 0000000000..6dd33dddfe
--- /dev/null
+++ b/spec/ruby/library/base64/decode64_spec.rb
@@ -0,0 +1,29 @@
+require_relative '../../spec_helper'
+
+require 'base64'
+
+describe "Base64#decode64" do
+  it "returns the Base64-decoded version of the given string" do
+    Base64.decode64("U2VuZCByZWluZm9yY2VtZW50cw==\n").should == "Send reinforcements"
+  end
+
+  it "returns the Base64-decoded version of the given shared string" do
+    Base64.decode64("base64: U2VuZCByZWluZm9yY2VtZW50cw==\n".split(" ").last).should == "Send reinforcements"
+  end
+
+  it "returns the Base64-decoded version of the given string with wrong padding" do
+    Base64.decode64("XU2VuZCByZWluZm9yY2VtZW50cw===").should == "]M\x95\xB9\x90\x81\xC9\x95\xA5\xB9\x99\xBD\xC9\x8D\x95\xB5\x95\xB9\xD1\xCC".b
+  end
+
+  it "returns the Base64-decoded version of the given string that contains an invalid character" do
+    Base64.decode64("%3D").should == "\xDC".b
+  end
+
+  it "returns a binary encoded string" do
+    Base64.decode64("SEk=").encoding.should == Encoding::BINARY
+  end
+
+  it "decodes without padding suffix ==" do
+    Base64.decode64("eyJrZXkiOnsibiI6InR0dCJ9fQ").should == "{\"key\":{\"n\":\"ttt\"}}"
+  end
+end