add spec Warning[category] = true|false to emit/suppress warnings

ruby · Oct 22, 2020 · 6cd1314 · 6cd1314
1 parent 2642d55
commit 6cd1314
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/core/warning/warn_spec.rb b/core/warning/warn_spec.rb
@@ -51,6 +51,17 @@ def Warning.warn(msg)
     end
   end
 
+  ruby_version_is '2.7' do
+    it "emits and suppresses warnings for :deprecated" do
+      ruby_exe(%{Warning[:deprecated] = true; $; = ""}, args: "2>&1").should =~ /is deprecated/
+      ruby_exe(%{Warning[:deprecated] = false; $; = ""}, args: "2>&1").should == ""
+    end
+
+    it "emits and suppresses warnings for :experimental" do
+      ruby_exe(%{Warning[:experimental] = true; 0 in a}, args: "2>&1").should =~ /is experimental/
+      ruby_exe(%{Warning[:experimental] = false; 0 in a}, args: "2>&1").should == ""
+    end
+  end
 
   ruby_version_is '3.0' do
     it "is called by Kernel.warn with nil category keyword" do