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114 lines
3 KiB
Ruby
114 lines
3 KiB
Ruby
describe :stringio_each_separator, shared: true do
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before :each do
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@io = StringIO.new("a b c d e\n1 2 3 4 5")
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end
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it "uses the passed argument as the line separator" do
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seen = []
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@io.send(@method, " ") {|s| seen << s}
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seen.should == ["a ", "b ", "c ", "d ", "e\n1 ", "2 ", "3 ", "4 ", "5"]
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end
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it "does not change $_" do
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$_ = "test"
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@io.send(@method, " ") { |s| s}
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$_.should == "test"
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end
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it "returns self" do
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@io.send(@method) {|l| l }.should equal(@io)
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end
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it "tries to convert the passed separator to a String using #to_str" do
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obj = mock("to_str")
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obj.stub!(:to_str).and_return(" ")
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seen = []
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@io.send(@method, obj) { |l| seen << l }
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seen.should == ["a ", "b ", "c ", "d ", "e\n1 ", "2 ", "3 ", "4 ", "5"]
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end
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it "yields self's content starting from the current position when the passed separator is nil" do
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seen = []
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io = StringIO.new("1 2 1 2 1 2")
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io.pos = 2
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io.send(@method, nil) {|s| seen << s}
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seen.should == ["2 1 2 1 2"]
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end
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it "yields each paragraph when passed an empty String as separator" do
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seen = []
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io = StringIO.new("para1\n\npara2\n\n\npara3")
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io.send(@method, "") {|s| seen << s}
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seen.should == ["para1\n\n", "para2\n\n", "para3"]
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end
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end
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describe :stringio_each_no_arguments, shared: true do
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before :each do
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@io = StringIO.new("a b c d e\n1 2 3 4 5")
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end
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it "yields each line to the passed block" do
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seen = []
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@io.send(@method) {|s| seen << s }
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seen.should == ["a b c d e\n", "1 2 3 4 5"]
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end
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it "yields each line starting from the current position" do
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seen = []
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@io.pos = 4
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@io.send(@method) {|s| seen << s }
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seen.should == ["c d e\n", "1 2 3 4 5"]
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end
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it "does not change $_" do
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$_ = "test"
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@io.send(@method) { |s| s}
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$_.should == "test"
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end
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it "uses $/ as the default line separator" do
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seen = []
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begin
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old_rs, $/ = $/, " "
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@io.send(@method) {|s| seen << s }
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seen.should eql(["a ", "b ", "c ", "d ", "e\n1 ", "2 ", "3 ", "4 ", "5"])
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ensure
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$/ = old_rs
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end
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end
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it "returns self" do
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@io.send(@method) {|l| l }.should equal(@io)
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end
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it "returns an Enumerator when passed no block" do
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enum = @io.send(@method)
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enum.instance_of?(Enumerator).should be_true
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seen = []
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enum.each { |b| seen << b }
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seen.should == ["a b c d e\n", "1 2 3 4 5"]
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end
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end
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describe :stringio_each_not_readable, shared: true do
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it "raises an IOError" do
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io = StringIO.new("a b c d e", "w")
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-> { io.send(@method) { |b| b } }.should raise_error(IOError)
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io = StringIO.new("a b c d e")
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io.close_read
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-> { io.send(@method) { |b| b } }.should raise_error(IOError)
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end
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end
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describe :stringio_each_chomp, shared: true do
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it "yields each line with removed newline characters to the passed block" do
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seen = []
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io = StringIO.new("a b \rc d e\n1 2 3 4 5\r\nthe end")
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io.send(@method, chomp: true) {|s| seen << s }
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seen.should == ["a b \rc d e", "1 2 3 4 5", "the end"]
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end
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end
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