3 files changed, 31 insertions, 2 deletions
diff --git a/test/t/exception.rb b/test/t/exception.rb
index 0aed0e2e6..2ea319caa 100644
--- a/test/t/exception.rb
+++ b/test/t/exception.rb
@@ -253,3 +253,19 @@ assert('Exception 13') do
   end
   a == :ok
 end
+
+def exception_test14
+  UnknownConstant
+end
+
+assert('Exception 14') do
+  a = :ng
+  begin
+    send(:exception_test14)
+  rescue
+    a = :ok
+  end
+
+  a == :ok
+end
+
diff --git a/test/t/kernel.rb b/test/t/kernel.rb
index b96e85134..59d9f3df5 100644
--- a/test/t/kernel.rb
+++ b/test/t/kernel.rb
@@ -213,11 +213,18 @@ assert('Kernel#hash', '15.3.1.3.15') do
 end
 
 assert('Kernel#inspect', '15.3.1.3.17') do
-  inspect.class == String
+  s = nil.inspect
+  s.class == String and s == "nil"
 end
 
 assert('Kernel#instance_variables', '15.3.1.3.23') do
-  instance_variables.class == Array
+  o = Object.new
+  o.instance_eval do
+    @a = 11
+    @b = 12
+  end
+  ivars = o.instance_variables
+  ivars.class == Array and ivars.size == 2 and ivars.include?(:@a) and ivars.include?(:@b)
 end
 
 assert('Kernel#is_a?', '15.3.1.3.24') do
diff --git a/test/t/struct.rb b/test/t/struct.rb
index 5cf6929b8..d79b30c0e 100644
--- a/test/t/struct.rb
+++ b/test/t/struct.rb
@@ -16,6 +16,12 @@ if Object.const_defined?(:Struct)
       c.members == [:m1,:m2]
   end
 
+  # Check crash bug with Struc.new and no params.
+  assert('Struct.new', '15.2.18.3.1') do
+     c = Struct.new()
+     c.superclass == Struct and c.members == []
+  end
+
   assert('Struct#==', '15.2.18.4.1') do
     c = Struct.new(:m1, :m2)
     cc1 = c.new(1,2)