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-rw-r--r--spec/ruby/core/io/shared/readlines.rb257
1 files changed, 257 insertions, 0 deletions
diff --git a/spec/ruby/core/io/shared/readlines.rb b/spec/ruby/core/io/shared/readlines.rb
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+++ b/spec/ruby/core/io/shared/readlines.rb
@@ -0,0 +1,257 @@
+describe :io_readlines, shared: true do
+ it "raises TypeError if the first parameter is nil" do
+ -> { IO.send(@method, nil, &@object) }.should.raise(TypeError)
+ end
+
+ it "raises an Errno::ENOENT if the file does not exist" do
+ name = tmp("nonexistent.txt")
+ -> { IO.send(@method, name, &@object) }.should.raise(Errno::ENOENT)
+ end
+
+ it "yields a single string with entire content when the separator is nil" do
+ result = IO.send(@method, @name, nil, &@object)
+ (result ? result : ScratchPad.recorded).should == [IO.read(@name)]
+ end
+
+ it "yields a sequence of paragraphs when the separator is an empty string" do
+ result = IO.send(@method, @name, "", &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_empty_separator
+ end
+
+ it "yields a sequence of lines without trailing newline characters when chomp is passed" do
+ result = IO.send(@method, @name, chomp: true, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_without_newline_characters
+ end
+end
+
+describe :io_readlines_options_19, shared: true do
+ before :each do
+ @filename = tmp("io readlines options")
+ end
+
+ after :each do
+ rm_r @filename
+ end
+
+ describe "when passed name" do
+ it "calls #to_path to convert the name" do
+ name = mock("io name to_path")
+ name.should_receive(:to_path).and_return(@name)
+ IO.send(@method, name, &@object)
+ end
+
+ it "defaults to $/ as the separator" do
+ result = IO.send(@method, @name, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines
+ end
+ end
+
+ describe "when passed name, object" do
+ it "calls #to_str to convert the object to a separator" do
+ sep = mock("io readlines separator")
+ sep.should_receive(:to_str).at_least(1).and_return(" ")
+ result = IO.send(@method, @name, sep, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator
+ end
+
+ describe "when the object is an Integer" do
+ before :each do
+ @sep = $/
+ end
+
+ after :each do
+ suppress_warning {$/ = @sep}
+ end
+
+ it "defaults to $/ as the separator" do
+ suppress_warning {$/ = " "}
+ result = IO.send(@method, @name, 10, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+
+ it "uses the object as a limit if it is an Integer" do
+ result = IO.send(@method, @name, 10, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_limit
+ end
+
+ it "ignores the object as a limit if it is negative" do
+ result = IO.send(@method, @name, -2, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines
+ end
+
+ it "does not accept Integers that don't fit in a C off_t" do
+ -> { IO.send(@method, @name, 2**128, &@object) }.should.raise(RangeError)
+ end
+
+ describe "when passed limit" do
+ it "raises ArgumentError when passed 0 as a limit" do
+ -> { IO.send(@method, @name, 0, &@object) }.should.raise(ArgumentError)
+ end
+ end
+ end
+
+ describe "when the object is a String" do
+ it "uses the value as the separator" do
+ result = IO.send(@method, @name, " ", &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator
+ end
+
+ it "accepts non-ASCII data as separator" do
+ result = IO.send(@method, @name, "\303\250".dup.force_encoding("utf-8"), &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_arbitrary_separator
+ end
+ end
+
+ describe "when the object is an options Hash" do
+ it "raises TypeError exception" do
+ -> {
+ IO.send(@method, @name, { chomp: true }, &@object)
+ }.should.raise(TypeError)
+ end
+ end
+
+ describe "when the object is neither Integer nor String" do
+ it "raises TypeError exception" do
+ obj = mock("not io readlines limit")
+
+ -> {
+ IO.send(@method, @name, obj, &@object)
+ }.should.raise(TypeError)
+ end
+ end
+ end
+
+ describe "when passed name, keyword arguments" do
+ it "uses the keyword arguments as options" do
+ result = IO.send(@method, @name, mode: "r", &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines
+ end
+ end
+
+ describe "when passed name, object, object" do
+ describe "when the first object is a String" do
+ it "uses the second object as a limit if it is an Integer" do
+ result = IO.send(@method, @name, " ", 10, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+
+ it "calls #to_int to convert the second object" do
+ limit = mock("io readlines limit")
+ limit.should_receive(:to_int).at_least(1).and_return(10)
+ result = IO.send(@method, @name, " ", limit, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+ end
+
+ describe "when the first object is not a String or Integer" do
+ it "calls #to_str to convert the object to a String" do
+ sep = mock("io readlines separator")
+ sep.should_receive(:to_str).at_least(1).and_return(" ")
+ result = IO.send(@method, @name, sep, 10, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+
+ it "uses the second object as a limit if it is an Integer" do
+ result = IO.send(@method, @name, " ", 10, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+
+ it "calls #to_int to convert the second object" do
+ limit = mock("io readlines limit")
+ limit.should_receive(:to_int).at_least(1).and_return(10)
+ result = IO.send(@method, @name, " ", limit, &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+ end
+
+ describe "when the second object is neither Integer nor String" do
+ it "raises TypeError exception" do
+ obj = mock("not io readlines limit")
+
+ -> {
+ IO.send(@method, @name, " ", obj, &@object)
+ }.should.raise(TypeError)
+ end
+ end
+
+ describe "when the second object is an options Hash" do
+ it "raises TypeError exception" do
+ -> {
+ IO.send(@method, @name, "", { chomp: true }, &@object)
+ }.should.raise(TypeError)
+ end
+ end
+ end
+
+ describe "when passed name, object, keyword arguments" do
+ describe "when the first object is an Integer" do
+ it "uses the keyword arguments as options" do
+ -> do
+ IO.send(@method, @filename, 10, mode: "w", &@object)
+ end.should.raise(IOError)
+ end
+ end
+
+ describe "when the first object is a String" do
+ it "uses the keyword arguments as options" do
+ -> do
+ IO.send(@method, @filename, " ", mode: "w", &@object)
+ end.should.raise(IOError)
+ end
+ end
+
+ describe "when the first object is not a String or Integer" do
+ it "uses the keyword arguments as options" do
+ sep = mock("io readlines separator")
+ sep.should_receive(:to_str).at_least(1).and_return(" ")
+
+ -> do
+ IO.send(@method, @filename, sep, mode: "w", &@object)
+ end.should.raise(IOError)
+ end
+ end
+ end
+
+ describe "when passed name, separator, limit, keyword arguments" do
+ it "calls #to_path to convert the name object" do
+ name = mock("io name to_path")
+ name.should_receive(:to_path).and_return(@name)
+ result = IO.send(@method, name, " ", 10, mode: "r", &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+
+ it "calls #to_str to convert the separator object" do
+ sep = mock("io readlines separator")
+ sep.should_receive(:to_str).at_least(1).and_return(" ")
+ result = IO.send(@method, @name, sep, 10, mode: "r", &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+
+ it "calls #to_int to convert the limit argument" do
+ limit = mock("io readlines limit")
+ limit.should_receive(:to_int).at_least(1).and_return(10)
+ result = IO.send(@method, @name, " ", limit, mode: "r", &@object)
+ (result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
+ end
+
+ it "uses the keyword arguments as options" do
+ -> do
+ IO.send(@method, @filename, " ", 10, mode: "w", &@object)
+ end.should.raise(IOError)
+ end
+
+ describe "when passed chomp, nil as a separator, and a limit" do
+ it "yields each line of limit size without truncating trailing new line character" do
+ # 43 - is a size of the 1st paragraph in the file
+ result = IO.send(@method, @name, nil, 43, chomp: true, &@object)
+
+ (result ? result : ScratchPad.recorded).should == [
+ "Voici la ligne une.\nQui è la linea due.\n\n\n",
+ "Aquí está la línea tres.\n" + "Hier ist Zeile ",
+ "vier.\n\nEstá aqui a linha cinco.\nHere is li",
+ "ne six.\n"
+ ]
+ end
+ end
+ end
+end
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