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describe :string_each_line, :shared => true do
it "splits using default newline separator when none is specified" do
a = []
"one\ntwo\r\nthree".send(@method) { |s| a << s }
a.should == ["one\n", "two\r\n", "three"]
b = []
"hello\n\n\nworld".send(@method) { |s| b << s }
b.should == ["hello\n", "\n", "\n", "world"]
c = []
"\n\n\n\n\n".send(@method) {|s| c << s}
c.should == ["\n", "\n", "\n", "\n", "\n"]
end
it "splits self using the supplied record separator and passes each substring to the block" do
a = []
"one\ntwo\r\nthree".send(@method, "\n") { |s| a << s }
a.should == ["one\n", "two\r\n", "three"]
b = []
"hello\nworld".send(@method, 'l') { |s| b << s }
b.should == [ "hel", "l", "o\nworl", "d" ]
c = []
"hello\n\n\nworld".send(@method, "\n") { |s| c << s }
c.should == ["hello\n", "\n", "\n", "world"]
end
it "taints substrings that are passed to the block if self is tainted" do
"one\ntwo\r\nthree".taint.send(@method) { |s| s.tainted?.should == true }
"x.y.".send(@method, ".".taint) { |s| s.tainted?.should == false }
end
it "passes self as a whole to the block if the separator is nil" do
a = []
"one\ntwo\r\nthree".send(@method, nil) { |s| a << s }
a.should == ["one\ntwo\r\nthree"]
end
it "yields paragraphs (broken by 2 or more successive newlines) when passed ''" do
a = []
"hello\nworld\n\n\nand\nuniverse\n\n\n\n\n".send(@method, '') { |s| a << s }
a.should == ["hello\nworld\n\n\n", "and\nuniverse\n\n\n\n\n"]
a = []
"hello\nworld\n\n\nand\nuniverse\n\n\n\n\ndog".send(@method, '') { |s| a << s }
a.should == ["hello\nworld\n\n\n", "and\nuniverse\n\n\n\n\n", "dog"]
end
it "uses $/ as the separator when none is given" do
[
"", "x", "x\ny", "x\ry", "x\r\ny", "x\n\r\r\ny",
"hello hullo bello"
].each do |str|
["", "llo", "\n", "\r", nil].each do |sep|
begin
expected = []
str.send(@method, sep) { |x| expected << x }
old_rec_sep, $/ = $/, sep
actual = []
str.send(@method) { |x| actual << x }
actual.should == expected
ensure
$/ = old_rec_sep
end
end
end
end
it "yields subclass instances for subclasses" do
a = []
StringSpecs::MyString.new("hello\nworld").send(@method) { |s| a << s.class }
a.should == [StringSpecs::MyString, StringSpecs::MyString]
end
it "returns self" do
s = "hello\nworld"
(s.send(@method) {}).should equal(s)
end
it "tries to convert the separator to a string using to_str" do
separator = mock('l')
separator.should_receive(:to_str).and_return("l")
a = []
"hello\nworld".send(@method, separator) { |s| a << s }
a.should == [ "hel", "l", "o\nworl", "d" ]
end
ruby_version_is ''...'1.9' do
it "raises a RuntimeError if the string is modified while substituting" do
str = "hello\nworld"
lambda { str.send(@method) { str[0] = 'x' } }.should raise_error(RuntimeError)
end
end
ruby_version_is '1.9' do
it "does not care if the string is modified while substituting" do
str = "hello\nworld."
out = []
str.send(@method){|x| out << x; str[-1] = '!' }.should == "hello\nworld!"
out.should == ["hello\n", "world."]
end
end
it "raises a TypeError when the separator can't be converted to a string" do
lambda { "hello world".send(@method, false) {} }.should raise_error(TypeError)
lambda { "hello world".send(@method, mock('x')) {} }.should raise_error(TypeError)
end
ruby_version_is ''...'1.9' do
it "raises a TypeError when the separator is a character or a symbol" do
lambda { "hello world".send(@method, ?o) {} }.should raise_error(TypeError)
lambda { "hello world".send(@method, :o) {} }.should raise_error(TypeError)
end
end
ruby_version_is '1.9' do
it "accept string separator" do
"hello world".send(@method, ?o).to_a.should == ["hello", " wo", "rld"]
end
it "raises a TypeError when the separator is a symbol" do
lambda { "hello world".send(@method, :o).to_a }.should raise_error(TypeError)
end
end
end
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