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Diffstat (limited to 'spec/rubyspec/core/kernel/backtick_spec.rb')
-rw-r--r-- | spec/rubyspec/core/kernel/backtick_spec.rb | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/spec/rubyspec/core/kernel/backtick_spec.rb b/spec/rubyspec/core/kernel/backtick_spec.rb new file mode 100644 index 0000000000..eb25750bc2 --- /dev/null +++ b/spec/rubyspec/core/kernel/backtick_spec.rb @@ -0,0 +1,80 @@ +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 |