diff --git a/lib/flexmock/argument_matchers.rb b/lib/flexmock/argument_matchers.rb
index 9bf76d8..dbbb70f 100644
--- a/lib/flexmock/argument_matchers.rb
+++ b/lib/flexmock/argument_matchers.rb
@@ -75,12 +75,28 @@ def initialize(expected)
     end
     def ===(target)
       return false unless target.kind_of?(Hash)
-      return false unless @expected.all? { |k, v| v === target[k] }
+      matching = @expected.all? do |k, v|
+        v === target[k] || v == target[k]
+      end
+      return false unless matching
 
       @expected.size == target.size
     end
     def inspect
-      "kw(#{@expected.inspect})"
+      args = @expected.map do |k, v|
+        k_s = case k
+        when Symbol
+          "#{k}: "
+        else
+          "#{k.inspect} => "
+        end
+
+        v_s = FlexMock.forbid_mocking("<recursive call to mocked method in #inspect>") do
+          v.inspect
+        end
+        "#{k_s}#{v_s}"
+      end
+      args.join(", ")
     end
   end
 
diff --git a/lib/flexmock/core_class_methods.rb b/lib/flexmock/core_class_methods.rb
index 67d7b54..5f9bb80 100644
--- a/lib/flexmock/core_class_methods.rb
+++ b/lib/flexmock/core_class_methods.rb
@@ -97,6 +97,18 @@ def format_args(args)
       end
     end
 
+    # Class method to format a list of args (the part between the
+    # parenthesis).
+    def format_kw_args(args)
+      if args
+        FlexMock.forbid_mocking("<recursive call to mocked method in #inspect>") do
+          args.inspect
+        end
+      else
+        "**args"
+      end
+    end
+
     # Check will assert the block returns true.  If it doesn't, an
     # assertion failure is triggered with the given message.
     def check(msg, &block)  # :nodoc:
diff --git a/lib/flexmock/expectation.rb b/lib/flexmock/expectation.rb
index 1b514d1..25add14 100644
--- a/lib/flexmock/expectation.rb
+++ b/lib/flexmock/expectation.rb
@@ -65,6 +65,7 @@ def to_s
     def description
       result = ["should_receive(#{@sym.inspect})"]
       result << ".with(#{FlexMock.format_args(@expected_args)})" if @expected_args
+      result << ".with_kw_args(#{FlexMock.format_kw_args(@expected_kw_args)})" if @expected_kw_args
       @count_validators.each do |validator|
         result << validator.describe
       end
diff --git a/test/expectation_description_test.rb b/test/expectation_description_test.rb
index 2e323b6..73704be 100644
--- a/test/expectation_description_test.rb
+++ b/test/expectation_description_test.rb
@@ -78,6 +78,15 @@ def test_with_at_least_1_at_most_10
     assert_equal "should_receive(:foo).at_least.once.at_most.times(10)", @exp.description
   end
 
+  def test_with_kw_args
+    @exp.at_least.once.with_kw_args(a: 10, "b" => 20)
+
+    description = <<~EOD
+      should_receive(:foo).with_kw_args(a: 10, "b" => 20).at_least.once
+    EOD
+    assert_equal description.chomp, @exp.description
+  end
+
   def test_with_signature
     @exp.at_least.once.with_signature(required_arguments: 2, optional_arguments: 3,
                         required_keyword_arguments: [:test],
diff --git a/test/should_receive_test.rb b/test/should_receive_test.rb
index 54fa51d..15d414c 100644
--- a/test/should_receive_test.rb
+++ b/test/should_receive_test.rb
@@ -439,13 +439,36 @@ def test_with_hash_non_matching
     end
   end
 
-  def test_with_kw_args_matching
+  def test_with_kw_args_matching_equality
     FlexMock.use('greeter') do |m|
       m.should_receive(:hi).with_kw_args(some: 10)
       m.hi(some: 10)
     end
   end
 
+  def test_with_kw_args_matching_with_case_operator
+    FlexMock.use('greeter') do |m|
+      m.should_receive(:hi).with_kw_args(some: 9..11)
+      m.hi(some: 10)
+    end
+  end
+
+  def test_with_kw_args_matching_with_equality_operator
+    FlexMock.use('greeter') do |m|
+      m.should_receive(:hi).with_kw_args(some: 9..11)
+      m.hi(some: 9..11)
+    end
+  end
+
+  def test_with_kw_args_matching_strictly_with_equality_with_the_eq_operator
+    assert_raises(FlexMock::CheckFailedError) do
+      FlexMock.use('greeter') do |m|
+        m.should_receive(:hi).with_kw_args(some: eq(9..11))
+        m.hi(some: 10)
+      end
+    end
+  end
+
   def test_with_kw_args_matches_values_separately
     FlexMock.use('greeter') do |m|
       m.should_receive(:hi).with_kw_args(a: on { |v| v == 1 }, b: 2).once