1 files changed, 71 insertions, 0 deletions
diff --git a/spec/ruby/core/string/rpartition_spec.rb b/spec/ruby/core/string/rpartition_spec.rb
new file mode 100644
index 0000000000..a7dd7430b7
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+++ b/spec/ruby/core/string/rpartition_spec.rb
@@ -0,0 +1,71 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+require_relative 'shared/partition'
+
+describe "String#rpartition with String" do
+  it_behaves_like :string_partition, :rpartition
+
+  it "returns an array of substrings based on splitting on the given string" do
+    "hello world".rpartition("o").should == ["hello w", "o", "rld"]
+  end
+
+  it "always returns 3 elements" do
+    "hello".rpartition("x").should == ["", "", "hello"]
+    "hello".rpartition("hello").should == ["", "hello", ""]
+  end
+
+  it "returns original string if regexp doesn't match" do
+    "hello".rpartition("/x/").should == ["", "", "hello"]
+  end
+
+  it "returns new object if doesn't match" do
+    str = "hello"
+    str.rpartition("/no_match/").last.should_not.equal?(str)
+  end
+
+  it "handles multibyte string correctly" do
+    "ユーザ@ドメイン".rpartition(/@/).should == ["ユーザ", "@", "ドメイン"]
+  end
+
+  it "accepts regexp" do
+    "hello!".rpartition(/l./).should == ["hel", "lo", "!"]
+  end
+
+  it "affects $~" do
+    matched_string = "hello!".rpartition(/l./)[1]
+    matched_string.should == $~[0]
+  end
+
+  it "converts its argument using :to_str" do
+    find = mock('l')
+    find.should_receive(:to_str).and_return("l")
+    "hello".rpartition(find).should == ["hel","l","o"]
+  end
+
+  it "raises an error if not convertible to string" do
+    ->{ "hello".rpartition(5) }.should.raise(TypeError)
+    ->{ "hello".rpartition(nil) }.should.raise(TypeError)
+  end
+
+  it "handles a pattern in a superset encoding" do
+    string = "hello".dup.force_encoding(Encoding::US_ASCII)
+
+    result = string.rpartition("é")
+
+    result.should == ["", "", "hello"]
+    result[0].encoding.should == Encoding::US_ASCII
+    result[1].encoding.should == Encoding::US_ASCII
+    result[2].encoding.should == Encoding::US_ASCII
+  end
+
+  it "handles a pattern in a subset encoding" do
+    pattern = "o".dup.force_encoding(Encoding::US_ASCII)
+
+    result = "héllo world".rpartition(pattern)
+
+    result.should == ["héllo w", "o", "rld"]
+    result[0].encoding.should == Encoding::UTF_8
+    result[1].encoding.should == Encoding::US_ASCII
+    result[2].encoding.should == Encoding::UTF_8
+  end
+end