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100 lines
2.7 KiB
Ruby
100 lines
2.7 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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describe "StringIO#readlines when passed [separator]" do
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before :each do
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@io = StringIO.new("this>is>an>example")
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end
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it "returns an Array containing lines based on the passed separator" do
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@io.readlines(">").should == ["this>", "is>", "an>", "example"]
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end
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it "updates self's position based on the number of read bytes" do
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@io.readlines(">")
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@io.pos.should eql(18)
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end
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it "updates self's lineno based on the number of read lines" do
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@io.readlines(">")
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@io.lineno.should eql(4)
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end
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it "does not change $_" do
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$_ = "test"
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@io.readlines(">")
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$_.should == "test"
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end
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it "returns an Array containing all paragraphs when the passed separator is an empty String" do
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io = StringIO.new("this is\n\nan example")
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io.readlines("").should == ["this is\n\n", "an example"]
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end
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it "returns the remaining content as one line starting at the current position when passed nil" do
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io = StringIO.new("this is\n\nan example")
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io.pos = 5
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io.readlines(nil).should == ["is\n\nan example"]
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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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@io.readlines(obj).should == ["this>", "is>", "an>", "example"]
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end
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end
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describe "StringIO#readlines when passed no argument" do
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before :each do
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@io = StringIO.new("this is\nan example\nfor StringIO#readlines")
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end
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it "returns an Array containing lines based on $/" do
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begin
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old_sep = $/;
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suppress_warning {$/ = " "}
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@io.readlines.should == ["this ", "is\nan ", "example\nfor ", "StringIO#readlines"]
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ensure
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suppress_warning {$/ = old_sep}
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end
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end
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it "updates self's position based on the number of read bytes" do
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@io.readlines
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@io.pos.should eql(41)
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end
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it "updates self's lineno based on the number of read lines" do
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@io.readlines
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@io.lineno.should eql(3)
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end
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it "does not change $_" do
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$_ = "test"
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@io.readlines(">")
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$_.should == "test"
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end
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it "returns an empty Array when self is at the end" do
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@io.pos = 41
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@io.readlines.should == []
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end
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end
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describe "StringIO#readlines when in write-only mode" do
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it "raises an IOError" do
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io = StringIO.new("xyz", "w")
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-> { io.readlines }.should raise_error(IOError)
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io = StringIO.new("xyz")
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io.close_read
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-> { io.readlines }.should raise_error(IOError)
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end
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end
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describe "StringIO#readlines when passed [chomp]" do
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it "returns the data read without a trailing newline character" do
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io = StringIO.new("this>is\nan>example\r\n")
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io.readlines(chomp: true).should == ["this>is", "an>example"]
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end
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end
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