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# -*- encoding: utf-8 -*-
require File.expand_path('../../../spec_helper', __FILE__)
describe "String#unicode_normalized?" do
before :each do
@nfc_normalized_str = "\u1e9b\u0323"
@nfd_normalized_str = "\u017f\u0323\u0307"
@nfkc_normalized_str = "\u1e69"
@nfkd_normalized_str = "\u0073\u0323\u0307"
end
it "returns true if string is in the specified normalization form" do
@nfc_normalized_str.unicode_normalized?(:nfc).should == true
@nfd_normalized_str.unicode_normalized?(:nfd).should == true
@nfkc_normalized_str.unicode_normalized?(:nfkc).should == true
@nfkd_normalized_str.unicode_normalized?(:nfkd).should == true
end
it "returns false if string is not in the supplied normalization form" do
@nfd_normalized_str.unicode_normalized?(:nfc).should == false
@nfc_normalized_str.unicode_normalized?(:nfd).should == false
@nfc_normalized_str.unicode_normalized?(:nfkc).should == false
@nfc_normalized_str.unicode_normalized?(:nfkd).should == false
end
it "defaults to the nfc normalization form if no forms are specified" do
@nfc_normalized_str.unicode_normalized?.should == true
@nfd_normalized_str.unicode_normalized?.should == false
end
it "returns true if string is empty" do
"".unicode_normalized?.should == true
end
it "returns true if string does not contain any unicode codepoints" do
"abc".unicode_normalized?.should == true
end
it "raises an Encoding::CompatibilityError if the string is not in an unicode encoding" do
lambda { @nfc_normalized_str.force_encoding("ISO-8859-1").unicode_normalized? }.should raise_error(Encoding::CompatibilityError)
end
it "raises an ArgumentError if the specified form is invalid" do
lambda { @nfc_normalized_str.unicode_normalized?(:invalid_form) }.should raise_error(ArgumentError)
end
it "returns true if str is in Unicode normalization form (nfc)" do
str = "a\u0300"
str.unicode_normalized?(:nfc).should be_false
str.unicode_normalize!(:nfc)
str.unicode_normalized?(:nfc).should be_true
end
it "returns true if str is in Unicode normalization form (nfd)" do
str = "a\u00E0"
str.unicode_normalized?(:nfd).should be_false
str.unicode_normalize!(:nfd)
str.unicode_normalized?(:nfd).should be_true
end
it "returns true if str is in Unicode normalization form (nfkc)" do
str = "a\u0300"
str.unicode_normalized?(:nfkc).should be_false
str.unicode_normalize!(:nfkc)
str.unicode_normalized?(:nfkc).should be_true
end
it "returns true if str is in Unicode normalization form (nfkd)" do
str = "a\u00E0"
str.unicode_normalized?(:nfkd).should be_false
str.unicode_normalize!(:nfkd)
str.unicode_normalized?(:nfkd).should be_true
end
end
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