1 files changed, 63 insertions, 0 deletions
diff --git a/spec/ruby/core/string/partition_spec.rb b/spec/ruby/core/string/partition_spec.rb
new file mode 100644
index 0000000000..d5370dcc73
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+++ b/spec/ruby/core/string/partition_spec.rb
@@ -0,0 +1,63 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+require_relative 'shared/partition'
+
+describe "String#partition with String" do
+  it_behaves_like :string_partition, :partition
+
+  it "returns an array of substrings based on splitting on the given string" do
+    "hello world".partition("o").should == ["hell", "o", " world"]
+  end
+
+  it "always returns 3 elements" do
+    "hello".partition("x").should == ["hello", "", ""]
+    "hello".partition("hello").should == ["", "hello", ""]
+  end
+
+  it "accepts regexp" do
+    "hello!".partition(/l./).should == ["he", "ll", "o!"]
+  end
+
+  it "sets global vars if regexp used" do
+    "hello!".partition(/(.l)(.o)/)
+    $1.should == "el"
+    $2.should == "lo"
+  end
+
+  it "converts its argument using :to_str" do
+    find = mock('l')
+    find.should_receive(:to_str).and_return("l")
+    "hello".partition(find).should == ["he","l","lo"]
+  end
+
+  it "raises an error if not convertible to string" do
+    ->{ "hello".partition(5) }.should raise_error(TypeError)
+    ->{ "hello".partition(nil) }.should raise_error(TypeError)
+  end
+
+  it "takes precedence over a given block" do
+    "hello world".partition("o") { true }.should == ["hell", "o", " world"]
+  end
+
+  it "handles a pattern in a superset encoding" do
+    string = "hello".dup.force_encoding(Encoding::US_ASCII)
+
+    result = string.partition("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".partition(pattern)
+
+    result.should == ["héll", "o", " world"]
+    result[0].encoding.should == Encoding::UTF_8
+    result[1].encoding.should == Encoding::US_ASCII
+    result[2].encoding.should == Encoding::UTF_8
+  end
+end