diff options
Diffstat (limited to 'spec/ruby/core/string/swapcase_spec.rb')
-rw-r--r-- | spec/ruby/core/string/swapcase_spec.rb | 129 |
1 files changed, 123 insertions, 6 deletions
diff --git a/spec/ruby/core/string/swapcase_spec.rb b/spec/ruby/core/string/swapcase_spec.rb index 6d00906aad..bb89dee48f 100644 --- a/spec/ruby/core/string/swapcase_spec.rb +++ b/spec/ruby/core/string/swapcase_spec.rb @@ -23,8 +23,61 @@ describe "String#swapcase" do end ruby_version_is '2.4' do - it "works for all of Unicode" do - "äÖü".swapcase.should == "ÄöÜ" + describe "full Unicode case mapping" do + it "works for all of Unicode with no option" do + "äÖü".swapcase.should == "ÄöÜ" + end + + it "updates string metadata" do + swapcased = "Aßet".swapcase + + swapcased.should == "aSSET" + swapcased.size.should == 5 + swapcased.bytesize.should == 5 + swapcased.ascii_only?.should be_true + end + end + + describe "ASCII-only case mapping" do + it "does not swapcase non-ASCII characters" do + "aßet".swapcase(:ascii).should == "AßET" + end + end + + describe "full Unicode case mapping adapted for Turkic languages" do + it "swaps case of ASCII characters according to Turkic semantics" do + "aiS".swapcase(:turkic).should == "Aİs" + end + + it "allows Lithuanian as an extra option" do + "aiS".swapcase(:turkic, :lithuanian).should == "Aİs" + end + + it "does not allow any other additional option" do + lambda { "aiS".swapcase(:turkic, :ascii) }.should raise_error(ArgumentError) + end + end + + describe "full Unicode case mapping adapted for Lithuanian" do + it "currently works the same as full Unicode case mapping" do + "Iß".swapcase(:lithuanian).should == "iSS" + end + + it "allows Turkic as an extra option (and applies Turkic semantics)" do + "iS".swapcase(:lithuanian, :turkic).should == "İs" + end + + it "does not allow any other additional option" do + lambda { "aiS".swapcase(:lithuanian, :ascii) }.should raise_error(ArgumentError) + end + end + + it "does not allow the :fold option for upcasing" do + lambda { "abc".swapcase(:fold) }.should raise_error(ArgumentError) + end + + it "does not allow invalid options" do + lambda { "abc".swapcase(:invalid_option) }.should raise_error(ArgumentError) end end @@ -42,10 +95,74 @@ describe "String#swapcase!" do end ruby_version_is '2.4' do - it "modifies self in place for all of Unicode" do - a = "äÖü" - a.swapcase!.should equal(a) - a.should == "ÄöÜ" + describe "full Unicode case mapping" do + it "modifies self in place for all of Unicode with no option" do + a = "äÖü" + a.swapcase! + a.should == "ÄöÜ" + end + + it "updates string metadata" do + swapcased = "Aßet" + swapcased.swapcase! + + swapcased.should == "aSSET" + swapcased.size.should == 5 + swapcased.bytesize.should == 5 + swapcased.ascii_only?.should be_true + end + end + + describe "modifies self in place for ASCII-only case mapping" do + it "does not swapcase non-ASCII characters" do + a = "aßet" + a.swapcase!(:ascii) + a.should == "AßET" + end + end + + describe "modifies self in place for full Unicode case mapping adapted for Turkic languages" do + it "swaps case of ASCII characters according to Turkic semantics" do + a = "aiS" + a.swapcase!(:turkic) + a.should == "Aİs" + end + + it "allows Lithuanian as an extra option" do + a = "aiS" + a.swapcase!(:turkic, :lithuanian) + a.should == "Aİs" + end + + it "does not allow any other additional option" do + lambda { a = "aiS"; a.swapcase!(:turkic, :ascii) }.should raise_error(ArgumentError) + end + end + + describe "full Unicode case mapping adapted for Lithuanian" do + it "currently works the same as full Unicode case mapping" do + a = "Iß" + a.swapcase!(:lithuanian) + a.should == "iSS" + end + + it "allows Turkic as an extra option (and applies Turkic semantics)" do + a = "iS" + a.swapcase!(:lithuanian, :turkic) + a.should == "İs" + end + + it "does not allow any other additional option" do + lambda { a = "aiS"; a.swapcase!(:lithuanian, :ascii) }.should raise_error(ArgumentError) + end + end + + it "does not allow the :fold option for upcasing" do + lambda { a = "abc"; a.swapcase!(:fold) }.should raise_error(ArgumentError) + end + + it "does not allow invalid options" do + lambda { a = "abc"; a.swapcase!(:invalid_option) }.should raise_error(ArgumentError) end end |