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Contents
# -*- encoding: utf-8 -*-
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes.rb', __FILE__)
ruby_version_is '1.8.7' do
describe "String#start_with?" do
it "returns true only if beginning match" do
s = "hello"
s.start_with?('h').should be_true
s.start_with?('hel').should be_true
s.start_with?('el').should be_false
end
it "returns true only if any beginning match" do
"hello".start_with?('x', 'y', 'he', 'z').should be_true
end
it "converts its argument using :to_str" do
s = "hello"
find = mock('h')
find.should_receive(:to_str).and_return("h")
s.start_with?(find).should be_true
end
it "ignores arguments not convertible to string" do
"hello".start_with?().should be_false
"hello".start_with?(1).should be_false
"hello".start_with?(["h"]).should be_false
"hello".start_with?(1, nil, "h").should be_true
end
it "uses only the needed arguments" do
find = mock('h')
find.should_not_receive(:to_str)
"hello".start_with?("h",find).should be_true
end
it "works for multibyte strings" do
old_kcode = $KCODE
begin
$KCODE = "UTF-8"
"céréale".start_with?("cér").should be_true
ensure
$KCODE = old_kcode
end
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems