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require "./spec_helper"
describe String::Grapheme do
it ".new" do
String::Grapheme.new("foo", 0...1, 'f').@cluster.should eq 'f'
String::Grapheme.new("foo", 0...2, 'o').@cluster.should eq "fo"
String::Grapheme.new("foo", 1...3, 'o').@cluster.should eq "oo"
end
it "#to_s" do
String::Grapheme.new("foo").to_s.should eq "foo"
String::Grapheme.new('f').to_s.should eq "f"
String.build do |io|
String::Grapheme.new("foo").to_s(io)
end.should eq "foo"
String.build do |io|
String::Grapheme.new('f').to_s(io)
end.should eq "f"
end
it "#inspect" do
String::Grapheme.new("foo").inspect.should eq %(String::Grapheme("foo"))
String::Grapheme.new('f').inspect.should eq %(String::Grapheme('f'))
end
it "#size" do
String::Grapheme.new("foo").size.should eq 3
String::Grapheme.new("ππ").size.should eq 2
String::Grapheme.new('f').size.should eq 1
String::Grapheme.new('π').size.should eq 1
end
it "#bytesize" do
String::Grapheme.new("foo").bytesize.should eq 3
String::Grapheme.new("ππ").bytesize.should eq 8
String::Grapheme.new('f').bytesize.should eq 1
String::Grapheme.new('π').bytesize.should eq 4
end
it "#==" do
String::Grapheme.new('f').should eq String::Grapheme.new('f')
String::Grapheme.new('f').should_not eq String::Grapheme.new("f")
String::Grapheme.new("foo").should eq String::Grapheme.new("foo")
end
it ".break?" do
String::Grapheme.break?('a', 'b').should be_true
String::Grapheme.break?('\r', '\n').should be_false
String::Grapheme.break?('\r', 'a').should be_true
String::Grapheme.break?('a', '\n').should be_true
String::Grapheme.break?('o', '\u0308').should be_false
end
end
describe String do
it "#grapheme_size" do
"foo".grapheme_size.should eq 3
"ππ".grapheme_size.should eq 2
"f".grapheme_size.should eq 1
"π".grapheme_size.should eq 1
end
it "#graphemes" do
"abc".graphemes.map(&.to_s).should eq ["a", "b", "c"]
"mΓΆp".graphemes.map(&.to_s).should eq ["m", "ΓΆ", "p"]
"moΜp".graphemes.map(&.to_s).should eq ["m", "o\u0308", "p"]
"α
α
¬α«".graphemes.map(&.to_s).should eq ["\u1105\u116c\u11ab"]
"\r\n".graphemes.map(&.to_s).should eq ["\r\n"]
end
# These are just a couple of manual tests, the lot of automated specs is in grapheme_break_spec.cr
describe "#each_grapheme" do
it_iterates_graphemes "", [] of String
it_iterates_graphemes "\x00", [Char::ZERO]
it_iterates_graphemes "x", ['x']
it_iterates_graphemes "basic", ['b', 'a', 's', 'i', 'c']
it_iterates_graphemes "moΜp", ['m', "o\u0308", 'p']
it_iterates_graphemes "\r\n", ["\r\n"]
it_iterates_graphemes "\n\n", ['\n', '\n']
it_iterates_graphemes "\t*", ['\t', '*']
it_iterates_graphemes "α
α
¬α«", ["\u1105\u116C\u11AB"]
it_iterates_graphemes "άάάάά", ['\u0710', "\u070F\u0712", '\u0713', '\u0715']
it_iterates_graphemes "ΰΈ³", ['\u0E33']
it_iterates_graphemes "ΰΈ³ΰΈ³", ["\u0E33\u0E33"]
it_iterates_graphemes "ΰΈͺΰΈ£ΰΈ°ΰΈΰΈ³", ['\u0E2A', '\u0E23', '\u0E30', "\u0E2D\u0E33"]
it_iterates_graphemes "*α
α
¬α«*", ['*', "\u1105\u116C\u11AB", '*']
it_iterates_graphemes "*π©ββ€οΈβπβπ©*", ['*', "\u{1F469}\u200D\u2764\uFE0F\u200D\u{1F48B}\u200D\u{1F469}", '*']
it_iterates_graphemes "π©ββ€οΈβπβπ©", ["\u{1F469}\u200D\u2764\uFE0F\u200D\u{1F48B}\u200D\u{1F469}"]
it_iterates_graphemes "ππ½ββοΈ", ["\u{1F3CB}\u{1F3FD}\u200D\u2640\uFE0F"]
it_iterates_graphemes "π", ['\u{1F642}']
it_iterates_graphemes "ππ", ['\u{1F642}', '\u{1F642}']
it_iterates_graphemes "π©πͺ", ["\u{1F1E9}\u{1F1EA}"]
it_iterates_graphemes "π³οΈβπ", ["\u{1F3F3}\uFE0F\u200D\u{1F308}"]
end
end
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