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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Kernel#`" do
before :each do
@original_external = Encoding.default_external
end
after :each do
Encoding.default_external = @original_external
end
it "is a private method" do
Kernel.should have_private_instance_method(:`)
end
it "returns the standard output of the executed sub-process" do
ip = 'world'
`echo disc #{ip}`.should == "disc world\n"
end
it "lets the standard error stream pass through to the inherited stderr" do
cmd = ruby_cmd('STDERR.print "error stream"')
lambda {
`#{cmd}`.should == ""
}.should output_to_fd("error stream", STDERR)
end
it "produces a String in the default external encoding" do
Encoding.default_external = Encoding::SHIFT_JIS
`echo disc`.encoding.should equal(Encoding::SHIFT_JIS)
end
it "raises an Errno::ENOENT if the command is not executable" do
lambda { `nonexistent_command` }.should raise_error(Errno::ENOENT)
end
platform_is_not :windows do
it "sets $? to the exit status of the executed sub-process" do
ip = 'world'
`echo disc #{ip}`
$?.should be_kind_of(Process::Status)
$?.stopped?.should == false
$?.exited?.should == true
$?.exitstatus.should == 0
$?.success?.should == true
`echo disc #{ip}; exit 99`
$?.should be_kind_of(Process::Status)
$?.stopped?.should == false
$?.exited?.should == true
$?.exitstatus.should == 99
$?.success?.should == false
end
end
platform_is :windows do
it "sets $? to the exit status of the executed sub-process" do
ip = 'world'
`echo disc #{ip}`
$?.should be_kind_of(Process::Status)
$?.stopped?.should == false
$?.exited?.should == true
$?.exitstatus.should == 0
$?.success?.should == true
`echo disc #{ip}& exit 99`
$?.should be_kind_of(Process::Status)
$?.stopped?.should == false
$?.exited?.should == true
$?.exitstatus.should == 99
$?.success?.should == false
end
end
end
describe "Kernel.`" do
it "tries to convert the given argument to String using #to_str" do
(obj = mock('echo test')).should_receive(:to_str).and_return("echo test")
Kernel.`(obj).should == "test\n" #` fix vim syntax highlighting
end
end
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