1 files changed, 14 insertions, 9 deletions
diff --git a/tests/validation/fixtures/FlattenLayerFixture.h b/tests/validation/fixtures/FlattenLayerFixture.h
index 3de0ba45ae..ef94ea83b0 100644
--- a/tests/validation/fixtures/FlattenLayerFixture.h
+++ b/tests/validation/fixtures/FlattenLayerFixture.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -27,6 +27,7 @@
 #include "arm_compute/core/TensorShape.h"
 #include "arm_compute/core/Types.h"
 #include "arm_compute/core/Utils.h"
+#include "arm_compute/core/utils/misc/ShapeCalculator.h"
 #include "arm_compute/runtime/Tensor.h"
 #include "tests/AssetsLibrary.h"
 #include "tests/Globals.h"
@@ -43,6 +44,8 @@ namespace test
 {
 namespace validation
 {
+using namespace arm_compute::misc::shape_calculator;
+
 template <typename TensorType, typename AccessorType, typename FunctionType, typename T>
 class FlattenLayerValidationFixture : public framework::Fixture
 {
@@ -51,8 +54,13 @@ public:
     void setup(TensorShape shape, DataType data_type)
     {
         _fractional_bits = is_data_type_fixed_point(data_type) ? 4 : 0;
-        _target          = compute_target(shape, data_type);
-        _reference       = compute_reference(shape, data_type);
+
+        TensorShape shape_flatten;
+        TensorInfo  input_info(shape, 1, data_type, _fractional_bits);
+        shape_flatten = compute_im2col_flatten_shape(&input_info);
+
+        _target    = compute_target(shape, shape_flatten, data_type);
+        _reference = compute_reference(shape, shape_flatten, data_type);
         ARM_COMPUTE_ERROR_ON_MISMATCHING_DIMENSIONS(_target.info()->tensor_shape(), _reference.shape());
     }
 
@@ -73,11 +81,8 @@ protected:
         }
     }
 
-    TensorType compute_target(const TensorShape &shape, DataType data_type)
+    TensorType compute_target(const TensorShape &shape, const TensorShape &shape_flatten, DataType data_type)
     {
-        TensorShape shape_flatten(shape);
-        shape_flatten.collapse(3);
-
         // Create tensors
         TensorType src = create_tensor<TensorType>(shape, data_type, 1, _fractional_bits);
         TensorType dst = create_tensor<TensorType>(shape_flatten, data_type, 1, _fractional_bits);
@@ -105,7 +110,7 @@ protected:
         return dst;
     }
 
-    SimpleTensor<T> compute_reference(const TensorShape &shape, DataType data_type)
+    SimpleTensor<T> compute_reference(const TensorShape &shape, const TensorShape &shape_flatten, DataType data_type)
     {
         // Create reference
         SimpleTensor<T> src{ shape, data_type, 1, _fractional_bits };
@@ -113,7 +118,7 @@ protected:
         // Fill reference
         fill(src);
 
-        return reference::flatten_layer<T>(src);
+        return reference::flatten_layer<T>(src, shape_flatten);
     }
 
     TensorType      _target{};