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Versions: 10
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Stored size: 1.27 KB
Contents
describe "String#sub with pattern, replacement" do
it "returns a copy of self with all occurrences of pattern replaced with replacement" do
"hello".sub(/[aeiou]/, '*').should == "h*llo"
"hello".sub(//, ".").should == ".hello"
end
it "ignores a block if supplied" do
"food".sub(/f/, "g") { "w" }.should == "good"
end
it "supports /i for ignoring case" do
"Hello".sub(/h/i, "j").should == "jello"
"hello".sub(/H/i, "j").should == "jello"
end
it "converts and supports back references in replacement string" do
"javascript".sub(/(j).*(s).*/, '.\\1\\2').should == '.js'
end
end
describe "String#sub with pattern and block" do
it "returns a copy of self with the first occurences of pattern replaces with block's return value" do
"hi".sub(/./) { |s| s + ' ' }.should == "h i"
"hi!".sub(/(.)(.)/) { |*a| a.inspect }.should == '["hi"]!'
end
it "should set the global match variable $~ inside block" do
match_datas = []
"hello".sub(/(.)./) { match_datas << $~; $~[1].succ }.should == "illo"
match_datas.length.should == 1
match_datas[0].length.should == 2
match_datas[0].should == ["he", "h"]
end
it "should set the global match variable $& inside block" do
"hello".sub(/./) { "#{$&} " }.should == "h ello"
end
end
Version data entries
10 entries across 10 versions & 1 rubygems