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Versions: 10
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Contents
describe "String#gsub with pattern and replacement" do
it "returns a copy of self with all occurrences of pattern replaced with replacement" do
"hello".gsub(/[aeiou]/, '*').should == "h*ll*"
end
it "ignores a block if supplied" do
"food".gsub(/f/, "g") { "w" }.should == "good"
end
end
describe "String#gsub with pattern and block" do
it "returns a copy of self with all occurrences of pattern replaced with the block's return value" do
"hello".gsub(/./) { |s| s.succ + ' ' }.should == "i f m m p "
"hello!".gsub(/(.)(.)/) { |*a| a.inspect }.should == '["he"]["ll"]["o!"]'
"hello".gsub('l') { 'x'}.should == 'hexxo'
end
it "should set the global match variable $~ inside block" do
match_data = nil
"hello".gsub(/(.)(.)(.)(.)(.)/) { match_data = $~; $~[1] }.should == "h"
match_data.length.should == 6
match_data.should == ["hello", "h", "e", "l", "l", "o"]
end
it "should replace match group with undefined value with nil in match array" do
match_data = nil
"def".gsub(/(a(b)c)?d(e)f/) { match_data = $~; $~[3] }.should == "e"
match_data.length.should == 4
match_data.should == ["def", nil, nil, "e"]
end
end
Version data entries
10 entries across 10 versions & 1 rubygems