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require_relative '../../spec_helper'
describe "String#ord" do
it "returns an Integer" do
'a'.ord.should be_an_instance_of(Integer)
end
it "returns the codepoint of the first character in the String" do
'a'.ord.should == 97
end
it "ignores subsequent characters" do
"\u{287}a".ord.should == "\u{287}".ord
end
it "understands multibyte characters" do
"\u{9879}".ord.should == 39033
end
it "is equivalent to #codepoints.first" do
"\u{981}\u{982}".ord.should == "\u{981}\u{982}".codepoints.first
end
it "raises an ArgumentError if called on an empty String" do
-> { ''.ord }.should raise_error(ArgumentError)
end
it "raises ArgumentError if the character is broken" do
s = "©".dup.force_encoding("US-ASCII")
-> { s.ord }.should raise_error(ArgumentError, "invalid byte sequence in US-ASCII")
end
end
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