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# -*- encoding: utf-8 -*-
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "String#capitalize" do
it "returns a copy of self with the first character converted to uppercase and the remainder to lowercase" do
"".capitalize.should == ""
"h".capitalize.should == "H"
"H".capitalize.should == "H"
"hello".capitalize.should == "Hello"
"HELLO".capitalize.should == "Hello"
"123ABC".capitalize.should == "123abc"
"abcdef"[1...-1].capitalize.should == "Bcde"
end
describe "full Unicode case mapping" do
it "works for all of Unicode with no option" do
"äöÜ".capitalize.should == "Äöü"
end
it "only capitalizes the first resulting character when upcasing a character produces a multi-character sequence" do
"ß".capitalize.should == "Ss"
end
it "updates string metadata" do
capitalized = "ßeT".capitalize
capitalized.should == "Sset"
capitalized.size.should == 4
capitalized.bytesize.should == 4
capitalized.ascii_only?.should be_true
end
end
describe "ASCII-only case mapping" do
it "does not capitalize non-ASCII characters" do
"ßet".capitalize(:ascii).should == "ßet"
end
it "handles non-ASCII substrings properly" do
"garçon"[1...-1].capitalize(:ascii).should == "Arço"
end
end
describe "full Unicode case mapping adapted for Turkic languages" do
it "capitalizes ASCII characters according to Turkic semantics" do
"iSa".capitalize(:turkic).should == "İsa"
end
it "allows Lithuanian as an extra option" do
"iSa".capitalize(:turkic, :lithuanian).should == "İsa"
end
it "does not allow any other additional option" do
-> { "iSa".capitalize(: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".capitalize(:lithuanian).should == "Iß"
end
it "allows Turkic as an extra option (and applies Turkic semantics)" do
"iß".capitalize(:lithuanian, :turkic).should == "İß"
end
it "does not allow any other additional option" do
-> { "iß".capitalize(:lithuanian, :ascii) }.should raise_error(ArgumentError)
end
end
it "does not allow the :fold option for upcasing" do
-> { "abc".capitalize(:fold) }.should raise_error(ArgumentError)
end
it "does not allow invalid options" do
-> { "abc".capitalize(:invalid_option) }.should raise_error(ArgumentError)
end
ruby_version_is ''...'3.0' do
it "returns subclass instances when called on a subclass" do
StringSpecs::MyString.new("hello").capitalize.should be_an_instance_of(StringSpecs::MyString)
StringSpecs::MyString.new("Hello").capitalize.should be_an_instance_of(StringSpecs::MyString)
end
end
ruby_version_is '3.0' do
it "returns String instances when called on a subclass" do
StringSpecs::MyString.new("hello").capitalize.should be_an_instance_of(String)
StringSpecs::MyString.new("Hello").capitalize.should be_an_instance_of(String)
end
end
it "returns a String in the same encoding as self" do
"h".encode("US-ASCII").capitalize.encoding.should == Encoding::US_ASCII
end
end
describe "String#capitalize!" do
it "capitalizes self in place" do
a = "hello"
a.capitalize!.should equal(a)
a.should == "Hello"
end
it "modifies self in place for non-ascii-compatible encodings" do
a = "heLLo".encode("utf-16le")
a.capitalize!
a.should == "Hello".encode("utf-16le")
end
describe "full Unicode case mapping" do
it "modifies self in place for all of Unicode with no option" do
a = "äöÜ"
a.capitalize!
a.should == "Äöü"
end
it "only capitalizes the first resulting character when upcasing a character produces a multi-character sequence" do
a = "ß"
a.capitalize!
a.should == "Ss"
end
it "works for non-ascii-compatible encodings" do
a = "äöü".encode("utf-16le")
a.capitalize!
a.should == "Äöü".encode("utf-16le")
end
it "updates string metadata" do
capitalized = "ßeT"
capitalized.capitalize!
capitalized.should == "Sset"
capitalized.size.should == 4
capitalized.bytesize.should == 4
capitalized.ascii_only?.should be_true
end
end
describe "modifies self in place for ASCII-only case mapping" do
it "does not capitalize non-ASCII characters" do
a = "ßet"
a.capitalize!(:ascii)
a.should == "ßet"
end
it "works for non-ascii-compatible encodings" do
a = "aBc".encode("utf-16le")
a.capitalize!(:ascii)
a.should == "Abc".encode("utf-16le")
end
end
describe "modifies self in place for full Unicode case mapping adapted for Turkic languages" do
it "capitalizes ASCII characters according to Turkic semantics" do
a = "iSa"
a.capitalize!(:turkic)
a.should == "İsa"
end
it "allows Lithuanian as an extra option" do
a = "iSa"
a.capitalize!(:turkic, :lithuanian)
a.should == "İsa"
end
it "does not allow any other additional option" do
-> { a = "iSa"; a.capitalize!(:turkic, :ascii) }.should raise_error(ArgumentError)
end
end
describe "modifies self in place for full Unicode case mapping adapted for Lithuanian" do
it "currently works the same as full Unicode case mapping" do
a = "iß"
a.capitalize!(:lithuanian)
a.should == "Iß"
end
it "allows Turkic as an extra option (and applies Turkic semantics)" do
a = "iß"
a.capitalize!(:lithuanian, :turkic)
a.should == "İß"
end
it "does not allow any other additional option" do
-> { a = "iß"; a.capitalize!(:lithuanian, :ascii) }.should raise_error(ArgumentError)
end
end
it "does not allow the :fold option for upcasing" do
-> { a = "abc"; a.capitalize!(:fold) }.should raise_error(ArgumentError)
end
it "does not allow invalid options" do
-> { a = "abc"; a.capitalize!(:invalid_option) }.should raise_error(ArgumentError)
end
it "returns nil when no changes are made" do
a = "Hello"
a.capitalize!.should == nil
a.should == "Hello"
"".capitalize!.should == nil
"H".capitalize!.should == nil
end
it "raises a FrozenError when self is frozen" do
["", "Hello", "hello"].each do |a|
a.freeze
-> { a.capitalize! }.should raise_error(FrozenError)
end
end
end
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