Adding delta infinity & nan checks & tests

src/unity.c

@@ -954,6 +954,17 @@ void UnityAssertWithinFloatArray(const UNITY_FLOAT delta,
 #endif
     }
 
+    if (isinf(in_delta))
+    {
+        return; /* Arrays will be force equal with infinite delta */
+    }
+
+    if (isnan(in_delta))
+    {
+        /* Delta must be correct number */
+        UnityPrintPointlessAndBail();
+    }
+
     if (expected == actual)
     {
         return; /* Both are NULL or same pointer */
@@ -1170,6 +1181,17 @@ void UnityAssertWithinDoubleArray(const UNITY_DOUBLE delta,
 #endif
     }
 
+    if (isinf(in_delta))
+    {
+        return; /* Arrays will be force equal with infinite delta */
+    }
+
+    if (isnan(in_delta))
+    {
+        /* Delta must be correct number */
+        UnityPrintPointlessAndBail();
+    }
+
     if (expected == actual)
     {
         return; /* Both are NULL or same pointer */

test/tests/test_unity_doubles.c

@@ -1049,6 +1049,22 @@ void testDoubleArraysWithin(void)
 #endif
 }
 
+void testDoubleArraysWithinUnusualDelta(void)
+{
+#ifdef UNITY_EXCLUDE_DOUBLE
+    TEST_IGNORE();
+#else
+    double p0[] = {-INFINITY, -8.0, 25.4, -0.123};
+    double p1[] = {INFINITY, 10.1};
+
+    TEST_ASSERT_DOUBLE_ARRAY_WITHIN(INFINITY, p0, p1, 2);
+
+    EXPECT_ABORT_BEGIN
+    TEST_ASSERT_DOUBLE_ARRAY_WITHIN(NAN, p0, p0, 4);
+    VERIFY_FAILS_END
+#endif
+}
+
 void testEqualDoubleEachEqual(void)
 {
 #ifdef UNITY_EXCLUDE_DOUBLE

test/tests/test_unity_floats.c

@@ -1047,6 +1047,22 @@ void testFloatArraysWithin(void)
 #endif
 }
 
+void testFloatArraysWithinUnusualDelta(void)
+{
+#ifdef UNITY_EXCLUDE_FLOAT
+    TEST_IGNORE();
+#else
+    float p0[] = {(float)-INFINITY, -8.0f, 25.4f, -0.123f};
+    float p1[] = {(float)INFINITY, 10.1f};
+
+    TEST_ASSERT_FLOAT_ARRAY_WITHIN(INFINITY, p0, p1, 2);
+
+    EXPECT_ABORT_BEGIN
+    TEST_ASSERT_FLOAT_ARRAY_WITHIN(NAN, p0, p0, 4);
+    VERIFY_FAILS_END
+#endif
+}
+
 void testEqualFloatEachEqual(void)
 {
 #ifdef UNITY_EXCLUDE_FLOAT