1 files changed, 18 insertions, 0 deletions
diff --git a/spec/ruby/core/process/last_status_spec.rb b/spec/ruby/core/process/last_status_spec.rb
new file mode 100644
index 0000000000..1bd8adf798
--- /dev/null
+++ b/spec/ruby/core/process/last_status_spec.rb
@@ -0,0 +1,18 @@
+require_relative '../../spec_helper'
+
+describe 'Process#last_status' do
+  it 'returns the status of the last executed child process in the current thread' do
+    pid = Process.wait Process.spawn("exit 0")
+    Process.last_status.pid.should == pid
+  end
+
+  it 'returns nil if no child process has been ever executed in the current thread' do
+    Thread.new do
+      Process.last_status.should == nil
+    end.join
+  end
+
+  it 'raises an ArgumentError if any arguments are provided' do
+    -> { Process.last_status(1) }.should.raise(ArgumentError)
+  end
+end