1 files changed, 14 insertions, 47 deletions
diff --git a/spec/ruby/core/exception/standard_error_spec.rb b/spec/ruby/core/exception/standard_error_spec.rb
index 1b469b5090..17e98ce7f0 100644
--- a/spec/ruby/core/exception/standard_error_spec.rb
+++ b/spec/ruby/core/exception/standard_error_spec.rb
@@ -1,56 +1,23 @@
 require_relative '../../spec_helper'
 
 describe "StandardError" do
-  it "is a superclass of ArgumentError" do
-    StandardError.should be_ancestor_of(ArgumentError)
-  end
-
-  it "is a superclass of IOError" do
-    StandardError.should be_ancestor_of(IOError)
-  end
-
-  it "is a superclass of IndexError" do
-    StandardError.should be_ancestor_of(IndexError)
-  end
-
-  it "is a superclass of LocalJumpError" do
-    StandardError.should be_ancestor_of(LocalJumpError)
-  end
-
-  it "is a superclass of NameError" do
-    StandardError.should be_ancestor_of(NameError)
-  end
-
-  it "is a superclass of RangeError" do
-    StandardError.should be_ancestor_of(RangeError)
-  end
-
-  it "is a superclass of RegexpError" do
-    StandardError.should be_ancestor_of(RegexpError)
-  end
-
-  it "is a superclass of RuntimeError" do
-    StandardError.should be_ancestor_of(RuntimeError)
-  end
-
-  it "is a superclass of SystemCallError" do
-    StandardError.should be_ancestor_of(SystemCallError.new("").class)
-  end
-  it "is a superclass of ThreadError" do
-    StandardError.should be_ancestor_of(ThreadError)
-  end
-
-  it "is a superclass of TypeError" do
-    StandardError.should be_ancestor_of(TypeError)
+  it "rescues StandardError" do
+    begin
+      raise StandardError
+    rescue => exception
+      exception.class.should == StandardError
+    end
   end
 
-  it "is a superclass of ZeroDivisionError" do
-    StandardError.should be_ancestor_of(ZeroDivisionError)
+  it "rescues subclass of StandardError" do
+    begin
+      raise RuntimeError
+    rescue => exception
+      exception.class.should == RuntimeError
+    end
   end
 
-  ruby_version_is '2.5' do
-    it "is a superclass of FrozenError" do
-      StandardError.should be_ancestor_of(FrozenError)
-    end
+  it "does not rescue superclass of StandardError" do
+    -> { begin; raise Exception; rescue; end }.should raise_error(Exception)
   end
 end