1 files changed, 175 insertions, 0 deletions
diff --git a/spec/ruby/core/thread/raise_spec.rb b/spec/ruby/core/thread/raise_spec.rb
new file mode 100644
index 0000000000..93e0f048b1
--- /dev/null
+++ b/spec/ruby/core/thread/raise_spec.rb
@@ -0,0 +1,175 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+require File.expand_path('../../../shared/kernel/raise', __FILE__)
+
+describe "Thread#raise" do
+  it "ignores dead threads" do
+    t = Thread.new { :dead }
+    Thread.pass while t.alive?
+    lambda {t.raise("Kill the thread")}.should_not raise_error
+    lambda {t.value}.should_not raise_error
+  end
+end
+
+describe "Thread#raise on a sleeping thread" do
+  before :each do
+    ScratchPad.clear
+    @thr = ThreadSpecs.sleeping_thread
+    Thread.pass while @thr.status and @thr.status != "sleep"
+  end
+
+  after :each do
+    @thr.kill
+    @thr.join
+  end
+
+  it "raises a RuntimeError if no exception class is given" do
+    @thr.raise
+    Thread.pass while @thr.status
+    ScratchPad.recorded.should be_kind_of(RuntimeError)
+  end
+
+  it "raises the given exception" do
+    @thr.raise Exception
+    Thread.pass while @thr.status
+    ScratchPad.recorded.should be_kind_of(Exception)
+  end
+
+  it "raises the given exception with the given message" do
+    @thr.raise Exception, "get to work"
+    Thread.pass while @thr.status
+    ScratchPad.recorded.should be_kind_of(Exception)
+    ScratchPad.recorded.message.should == "get to work"
+  end
+
+  it "raises the given exception and the backtrace is the one of the interrupted thread" do
+    @thr.raise Exception
+    Thread.pass while @thr.status
+    ScratchPad.recorded.should be_kind_of(Exception)
+    ScratchPad.recorded.backtrace[0].should include("sleep")
+  end
+
+  it "is captured and raised by Thread#value" do
+    t = Thread.new do
+      sleep
+    end
+
+    ThreadSpecs.spin_until_sleeping(t)
+
+    t.raise
+    lambda { t.value }.should raise_error(RuntimeError)
+  end
+
+  it "raises a RuntimeError when called with no arguments inside rescue" do
+    t = Thread.new do
+      begin
+        1/0
+      rescue ZeroDivisionError
+        sleep
+      end
+    end
+    begin
+      raise RangeError
+    rescue
+      ThreadSpecs.spin_until_sleeping(t)
+      t.raise
+    end
+    lambda {t.value}.should raise_error(RuntimeError)
+  end
+end
+
+describe "Thread#raise on a running thread" do
+  before :each do
+    ScratchPad.clear
+    ThreadSpecs.clear_state
+
+    @thr = ThreadSpecs.running_thread
+    Thread.pass until ThreadSpecs.state == :running
+  end
+
+  after :each do
+    @thr.kill
+    @thr.join
+  end
+
+  it "raises a RuntimeError if no exception class is given" do
+    @thr.raise
+    Thread.pass while @thr.status
+    ScratchPad.recorded.should be_kind_of(RuntimeError)
+  end
+
+  it "raises the given exception" do
+    @thr.raise Exception
+    Thread.pass while @thr.status
+    ScratchPad.recorded.should be_kind_of(Exception)
+  end
+
+  it "raises the given exception with the given message" do
+    @thr.raise Exception, "get to work"
+    Thread.pass while @thr.status
+    ScratchPad.recorded.should be_kind_of(Exception)
+    ScratchPad.recorded.message.should == "get to work"
+  end
+
+  it "can go unhandled" do
+    t = Thread.new do
+      loop { Thread.pass }
+    end
+
+    t.raise
+    lambda {t.value}.should raise_error(RuntimeError)
+  end
+
+  it "raises the given argument even when there is an active exception" do
+    raised = false
+    t = Thread.new do
+      begin
+        1/0
+      rescue ZeroDivisionError
+        raised = true
+        loop { Thread.pass }
+      end
+    end
+    begin
+      raise "Create an active exception for the current thread too"
+    rescue
+      Thread.pass until raised
+      t.raise RangeError
+      lambda {t.value}.should raise_error(RangeError)
+    end
+  end
+
+  it "raises a RuntimeError when called with no arguments inside rescue" do
+    raised = false
+    t = Thread.new do
+      begin
+        1/0
+      rescue ZeroDivisionError
+        raised = true
+        loop { }
+      end
+    end
+    begin
+      raise RangeError
+    rescue
+      Thread.pass until raised
+      t.raise
+    end
+    lambda {t.value}.should raise_error(RuntimeError)
+  end
+end
+
+describe "Thread#raise on same thread" do
+  it_behaves_like :kernel_raise, :raise, Thread.current
+
+  it "raises a RuntimeError when called with no arguments inside rescue" do
+    t = Thread.new do
+      begin
+        1/0
+      rescue ZeroDivisionError
+        Thread.current.raise
+      end
+    end
+    lambda {t.value}.should raise_error(RuntimeError)
+  end
+end