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require File.expand_path('../helper', __FILE__)
require 'stringio'
class TestTraceOutput < Rake::TestCase
include Rake::TraceOutput
class PrintSpy
attr_reader :result, :calls
def initialize
@result = ""
@calls = 0
end
def print(string)
@result << string
@calls += 1
end
end
def test_trace_issues_single_io_for_args_with_empty_args
spy = PrintSpy.new
trace_on(spy)
assert_equal "\n", spy.result
assert_equal 1, spy.calls
end
def test_trace_issues_single_io_for_args_multiple_strings
spy = PrintSpy.new
trace_on(spy, "HI\n", "LO")
assert_equal "HI\nLO\n", spy.result
assert_equal 1, spy.calls
end
def test_trace_handles_nil_objects
spy = PrintSpy.new
trace_on(spy, "HI\n", nil, "LO")
assert_equal "HI\nLO\n", spy.result
assert_equal 1, spy.calls
end
def test_trace_issues_single_io_for_args_multiple_strings_and_alternate_sep
old_sep = $\
$\ = "\r"
spy = PrintSpy.new
trace_on(spy, "HI\r", "LO")
assert_equal "HI\rLO\r", spy.result
assert_equal 1, spy.calls
ensure
$\ = old_sep
end
end
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