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Diffstat (limited to 'spec/rubyspec/core/string/upcase_spec.rb')
-rw-r--r-- | spec/rubyspec/core/string/upcase_spec.rb | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/spec/rubyspec/core/string/upcase_spec.rb b/spec/rubyspec/core/string/upcase_spec.rb new file mode 100644 index 0000000000..e23a9829d9 --- /dev/null +++ b/spec/rubyspec/core/string/upcase_spec.rb @@ -0,0 +1,53 @@ +# -*- encoding: utf-8 -*- +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes.rb', __FILE__) + +describe "String#upcase" do + it "returns a copy of self with all lowercase letters upcased" do + "Hello".upcase.should == "HELLO" + "hello".upcase.should == "HELLO" + end + + ruby_version_is ''...'2.4' do + it "is locale insensitive (only replaces a-z)" do + "äöü".upcase.should == "äöü" + + str = Array.new(256) { |c| c.chr }.join + expected = Array.new(256) do |i| + c = i.chr + c.between?("a", "z") ? c.upcase : c + end.join + + str.upcase.should == expected + end + end + + it "taints result when self is tainted" do + "".taint.upcase.tainted?.should == true + "X".taint.upcase.tainted?.should == true + "x".taint.upcase.tainted?.should == true + end + + it "returns a subclass instance for subclasses" do + StringSpecs::MyString.new("fooBAR").upcase.should be_an_instance_of(StringSpecs::MyString) + end +end + +describe "String#upcase!" do + it "modifies self in place" do + a = "HeLlO" + a.upcase!.should equal(a) + a.should == "HELLO" + end + + it "returns nil if no modifications were made" do + a = "HELLO" + a.upcase!.should == nil + a.should == "HELLO" + end + + it "raises a RuntimeError when self is frozen" do + lambda { "HeLlo".freeze.upcase! }.should raise_error(RuntimeError) + lambda { "HELLO".freeze.upcase! }.should raise_error(RuntimeError) + end +end |