diff --git a/test/system/test_interactions/ignore_and_return.yml b/test/system/test_interactions/ignore_and_return.yml
index 44fdaa8..17f95be 100644
--- a/test/system/test_interactions/ignore_and_return.yml
+++ b/test/system/test_interactions/ignore_and_return.yml
@@ -167,4 +167,163 @@
           function(1, 2, 3);
         }
 
+    - :pass: TRUE
+      :should: 'we can override an ignore with an expect and pass'
+      :code: |
+        test()
+        {
+          bar_Ignore();
+
+          bar_Expect(2);
+          foo_ExpectAndReturn(1, 50);
+          foo_ExpectAndReturn(2, 60);
+          foo_ExpectAndReturn(3, 70);
+          TEST_ASSERT_EQUAL(180, function(1, 2, 3));
+
+          bar_Expect(5);
+          foo_ExpectAndReturn(4, 30);
+          foo_ExpectAndReturn(5, 80);
+          foo_ExpectAndReturn(6, 10);
+          TEST_ASSERT_EQUAL(120, function(4, 5, 6));
+
+          bar_Expect(8);
+          foo_ExpectAndReturn(7, 70);
+          foo_ExpectAndReturn(8, 20);
+          foo_ExpectAndReturn(9, 20);
+          TEST_ASSERT_EQUAL(110, function(7, 8, 9));
+        }
+
+    - :pass: FALSE
+      :should: 'we can override an ignore with an expect and fail'
+      :code: |
+        test()
+        {
+          bar_Ignore();
+
+          bar_Expect(2);
+          foo_ExpectAndReturn(1, 50);
+          foo_ExpectAndReturn(2, 60);
+          foo_ExpectAndReturn(3, 70);
+          TEST_ASSERT_EQUAL(180, function(1, 2, 3));
+
+          bar_Expect(5);
+          foo_ExpectAndReturn(4, 30);
+          foo_ExpectAndReturn(5, 80);
+          foo_ExpectAndReturn(6, 10);
+          TEST_ASSERT_EQUAL(120, function(4, 5, 6));
+
+          bar_Expect(9);
+          foo_ExpectAndReturn(7, 70);
+          foo_ExpectAndReturn(8, 20);
+          foo_ExpectAndReturn(9, 20);
+          TEST_ASSERT_EQUAL(110, function(7, 8, 9));
+        }
+
+    - :pass: TRUE
+      :should: 'we can override an ignore and return with an expect and pass'
+      :code: |
+        test()
+        {
+          bar_Ignore();
+          foo_IgnoreAndReturn(30);
+          TEST_ASSERT_EQUAL(90, function(1, 2, 3));
+
+          bar_Expect(5);
+          foo_ExpectAndReturn(4, 30);
+          foo_ExpectAndReturn(5, 80);
+          foo_ExpectAndReturn(6, 10);
+          TEST_ASSERT_EQUAL(120, function(4, 5, 6));
+
+          bar_Expect(8);
+          foo_ExpectAndReturn(7, 70);
+          foo_ExpectAndReturn(8, 20);
+          foo_ExpectAndReturn(9, 20);
+          TEST_ASSERT_EQUAL(110, function(7, 8, 9));
+        }
+
+    - :pass: FALSE
+      :should: 'we can override an ignore and return with an expect and fail'
+      :code: |
+        test()
+        {
+          bar_Ignore();
+          foo_IgnoreAndReturn(0);
+          TEST_ASSERT_EQUAL(0, function(1, 2, 3));
+
+          bar_Expect(5);
+          foo_ExpectAndReturn(4, 30);
+          foo_ExpectAndReturn(5, 80);
+          foo_ExpectAndReturn(6, 10);
+          TEST_ASSERT_EQUAL(120, function(4, 5, 6));
+
+          bar_Expect(9);
+          foo_ExpectAndReturn(7, 70);
+          foo_ExpectAndReturn(8, 20);
+          foo_ExpectAndReturn(9, 20);
+          TEST_ASSERT_EQUAL(110, function(7, 8, 9));
+        }
+
+    - :pass: TRUE
+      :should: 'we can override an an expect with an ignore'
+      :code: |
+        test()
+        {
+          bar_Expect(5);
+          bar_Ignore();
+          foo_ExpectAndReturn(1, 50);
+          foo_ExpectAndReturn(2, 60);
+          foo_ExpectAndReturn(3, 70);
+          TEST_ASSERT_EQUAL(180, function(1, 2, 3));
+        }
+
+    - :pass: TRUE
+      :should: 'we can override an expect with an ignore and return and pass'
+      :code: |
+        test()
+        {
+          bar_Ignore();
+          foo_IgnoreAndReturn(0);
+          TEST_ASSERT_EQUAL(0, function(1, 2, 3));
+
+          bar_Expect(5);
+          foo_ExpectAndReturn(4, 30);
+          foo_ExpectAndReturn(5, 80);
+          foo_IgnoreAndReturn(10);
+          TEST_ASSERT_EQUAL(120, function(4, 5, 6));
+
+          bar_Ignore();
+          foo_IgnoreAndReturn(60);
+          TEST_ASSERT_EQUAL(180, function(7, 8, 9));
+        }
+
+    - :pass: FALSE
+      :should: 'we can override an expect with an ignore and return and fail after'
+      :code: |
+        test()
+        {
+          bar_Expect(5);
+          foo_ExpectAndReturn(4, 30);
+          foo_ExpectAndReturn(5, 50);
+          foo_IgnoreAndReturn(20);
+          TEST_ASSERT_EQUAL(100, function(4, 5, 6));
+
+          bar_Expect(5);
+          foo_ExpectAndReturn(9, 30); //THIS ONE WILL FAIL
+          foo_ExpectAndReturn(2, 80);
+          foo_ExpectAndReturn(3, 60);
+          TEST_ASSERT_EQUAL(170, function(1, 2, 3));
+        }
+
+    - :pass: TRUE
+      :should: 'we can override an expect with an ignore and return and the expected values are ignored'
+      :code: |
+        test()
+        {
+          bar_Expect(5);
+          foo_ExpectAndReturn(2, 30); //NOTE THIS WOULD NORMALLY FAIL
+          foo_ExpectAndReturn(5, 50);
+          foo_IgnoreAndReturn(20);    //BUT WE SAID WE NO LONGER CARE
+          TEST_ASSERT_EQUAL(100, function(4, 5, 6));
+        }
+
 ...