diff --git a/ChangeLog b/ChangeLog
index 23574954fc..594d739f3c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Tue Dec  9 00:45:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+
+	* lib/test/unit/assertions.rb: renamed #assert_raises to #assert_raise
+	  and made the former call the latter. [ruby-core:01890]
+
+	* test/testunit/test_assertions.rb: ditto.
+
 Tue Dec  9 00:07:35 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
 
 	* lib/soap/rpc/standaloneServer.rb: add 'shutdown' and 'status'
diff --git a/lib/test/unit/assertions.rb b/lib/test/unit/assertions.rb
index 3076b7fd02..090a07a405 100644
--- a/lib/test/unit/assertions.rb
+++ b/lib/test/unit/assertions.rb
@@ -56,9 +56,9 @@ EOT
         assert_block(full_message) { expected == actual }
       end
 
-      # Passes if block raises exception.
+      # Passes if block raises one of the given exceptions.
       public
-      def assert_raises(*args)
+      def assert_raise(*args)
         _wrap_assertion do
           if Class === args.last
             message = ""
@@ -85,6 +85,12 @@ EOT
         end
       end
 
+      # Alias of assert_raise. Will be deprecated in 1.9, and removed in 2.0.
+      public
+      def assert_raises(*args, &block)
+        assert_raise(*args, &block)
+      end
+
       # Passes if object.class == klass.
       public
       def assert_instance_of(klass, object, message="")
diff --git a/test/testunit/test_assertions.rb b/test/testunit/test_assertions.rb
index 6d0283174c..999376e765 100644
--- a/test/testunit/test_assertions.rb
+++ b/test/testunit/test_assertions.rb
@@ -104,37 +104,37 @@ module Test
         end
       end
       
-      def test_assert_raises
+      def test_assert_raise
         return_value = nil
         check_nothing_fails(true) {
-          return_value = assert_raises(RuntimeError) {
+          return_value = assert_raise(RuntimeError) {
             raise "Error"
           }
         }
-        check(return_value.kind_of?(Exception), "Should have returned the exception from a successful assert_raises")
-        check(return_value.message == "Error", "Should have returned the correct exception from a successful assert_raises")
+        check(return_value.kind_of?(Exception), "Should have returned the exception from a successful assert_raise")
+        check(return_value.message == "Error", "Should have returned the correct exception from a successful assert_raise")
         check_nothing_fails(true) {
-          assert_raises(ArgumentError, "successful assert_raises") {
+          assert_raise(ArgumentError, "successful assert_raise") {
             raise ArgumentError.new("Error")
           }
         }
         check_nothing_fails(true) {
-          assert_raises(RuntimeError) {
+          assert_raise(RuntimeError) {
             raise "Error"
           }
         }
         check_nothing_fails(true) {
-          assert_raises(RuntimeError, "successful assert_raises") {
+          assert_raise(RuntimeError, "successful assert_raise") {
             raise "Error"
           }
         }
         check_fails("<RuntimeError> exception expected but none was thrown.") {
-          assert_raises(RuntimeError) {
+          assert_raise(RuntimeError) {
             1 + 1
           }
         }
-        check_fails(%r{\Afailed assert_raises.\n<ArgumentError> exception expected but was\nClass: <RuntimeError>\nMessage: <"Error">\n---Backtrace---\n.+\n---------------\Z}m) {
-          assert_raises(ArgumentError, "failed assert_raises") {
+        check_fails(%r{\Afailed assert_raise.\n<ArgumentError> exception expected but was\nClass: <RuntimeError>\nMessage: <"Error">\n---Backtrace---\n.+\n---------------\Z}m) {
+          assert_raise(ArgumentError, "failed assert_raise") {
             raise "Error"
           }
         }
@@ -147,26 +147,26 @@ module Test
         exceptions = [ArgumentError, TypeError]
         exceptions.each do |exc|
           check_nothing_fails(true) {
-            return_value = assert_raises(*exceptions) {
+            return_value = assert_raise(*exceptions) {
               raise exc, "Error"
             }
           }
           check(return_value.instance_of?(exc), "Should have returned #{exc} but was #{return_value.class}")
-          check(return_value.message == "Error", "Should have returned the correct exception from a successful assert_raises")
+          check(return_value.message == "Error", "Should have returned the correct exception from a successful assert_raise")
         end
         check_fails("<[ArgumentError, TypeError]> exception expected but none was thrown.") {
-          assert_raises(*exceptions) {
+          assert_raise(*exceptions) {
             1 + 1
           }
         }
-        check_fails(%r{\Afailed assert_raises.
+        check_fails(%r{\Afailed assert_raise.
 <\[ArgumentError, TypeError\]> exception expected but was
 Class: <RuntimeError>
 Message: <"Error">
 ---Backtrace---
 .+
 ---------------\Z}m) {
-          assert_raises(ArgumentError, TypeError, "failed assert_raises") {
+          assert_raise(ArgumentError, TypeError, "failed assert_raise") {
             raise "Error"
           }
         }