Better error handling in async_map. (#10)

Author: ioquatix

lib/async/await/enumerable.rb

@@ -13,7 +13,7 @@ def async_map(parent: nil, &block)
 					parent ||= task
 
 					self.map do |*arguments|
-						parent.async do
+						parent.async(finished: false) do
 							yield(*arguments)
 						end
 					end.map(&:wait)

test/async/await/enumerable.rb

@@ -14,6 +14,14 @@
 
 			expect(result).to be == [2, 4, 6]
 		end
+		
+		it "should fail if the block fails" do
+			expect do
+				[1, 2, 3].async_map do |value|
+					raise "Fake error!"
+				end
+			end.to raise_exception(RuntimeError, message: be == "Fake error!")
+		end
 	end
 
 	with '#async_each' do