mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
76 lines
2.4 KiB
Ruby
76 lines
2.4 KiB
Ruby
describe :start_with, shared: true do
|
|
# the @method should either be :to_s or :to_sym
|
|
|
|
it "returns true only if beginning match" do
|
|
s = "hello".send(@method)
|
|
s.should.start_with?('h')
|
|
s.should.start_with?('hel')
|
|
s.should_not.start_with?('el')
|
|
end
|
|
|
|
it "returns true only if any beginning match" do
|
|
"hello".send(@method).should.start_with?('x', 'y', 'he', 'z')
|
|
end
|
|
|
|
it "returns true if the search string is empty" do
|
|
"hello".send(@method).should.start_with?("")
|
|
"".send(@method).should.start_with?("")
|
|
end
|
|
|
|
it "converts its argument using :to_str" do
|
|
s = "hello".send(@method)
|
|
find = mock('h')
|
|
find.should_receive(:to_str).and_return("h")
|
|
s.should.start_with?(find)
|
|
end
|
|
|
|
it "ignores arguments not convertible to string" do
|
|
"hello".send(@method).should_not.start_with?()
|
|
-> { "hello".send(@method).start_with?(1) }.should raise_error(TypeError)
|
|
-> { "hello".send(@method).start_with?(["h"]) }.should raise_error(TypeError)
|
|
-> { "hello".send(@method).start_with?(1, nil, "h") }.should raise_error(TypeError)
|
|
end
|
|
|
|
it "uses only the needed arguments" do
|
|
find = mock('h')
|
|
find.should_not_receive(:to_str)
|
|
"hello".send(@method).should.start_with?("h",find)
|
|
end
|
|
|
|
it "works for multibyte strings" do
|
|
"céréale".send(@method).should.start_with?("cér")
|
|
end
|
|
|
|
it "supports regexps" do
|
|
regexp = /[h1]/
|
|
"hello".send(@method).should.start_with?(regexp)
|
|
"1337".send(@method).should.start_with?(regexp)
|
|
"foxes are 1337".send(@method).should_not.start_with?(regexp)
|
|
"chunky\n12bacon".send(@method).should_not.start_with?(/12/)
|
|
end
|
|
|
|
it "supports regexps with ^ and $ modifiers" do
|
|
regexp1 = /^\d{2}/
|
|
regexp2 = /\d{2}$/
|
|
"12test".send(@method).should.start_with?(regexp1)
|
|
"test12".send(@method).should_not.start_with?(regexp1)
|
|
"12test".send(@method).should_not.start_with?(regexp2)
|
|
"test12".send(@method).should_not.start_with?(regexp2)
|
|
end
|
|
|
|
it "sets Regexp.last_match if it returns true" do
|
|
regexp = /test-(\d+)/
|
|
"test-1337".send(@method).start_with?(regexp).should be_true
|
|
Regexp.last_match.should_not be_nil
|
|
Regexp.last_match[1].should == "1337"
|
|
$1.should == "1337"
|
|
|
|
"test-asdf".send(@method).start_with?(regexp).should be_false
|
|
Regexp.last_match.should be_nil
|
|
$1.should be_nil
|
|
end
|
|
|
|
it "does not check that we are not matching part of a character" do
|
|
"\xC3\xA9".send(@method).should.start_with?("\xC3")
|
|
end
|
|
end
|