add test case and fix bug

Author: Crayon-new

testdata/dnn/tensorflow/generate_tf_models.py

@@ -594,9 +594,13 @@ def keras_relu6(x):
 inp = tf.placeholder(tf.float32, [2, 3, 4, 5], 'input')
 reduced = tf.reduce_sum(inp, axis=[2], keepdims=False)
 save(inp, reduced, 'sum_pool_by_axis')
-# NWC -> NCW, NHC -> NWC
-np.save('sum_pool_by_axis_out.npy', np.load('sum_pool_by_axis_out.npy').transpose(0, 2, 1))
-
+################################################################################
+# This test case generated by tensorflow 1.15.0
+inp = tf.placeholder(tf.float32, [2, 3, 4, 1])
+biasadd = tf.nn.bias_add(inp, [1],data_format='NHWC')
+reduced = tf.reduce_sum(biasadd,axis=[2],keep_dims=False)
+expanddim = tf.expand_dims(reduced,axis=2)
+save(inp,expanddim,'reduce_sum2')
 ################################################################################
 inp = tf.placeholder(tf.float32, [1, 4, 2, 3], 'input')
 out = tf.math.reduce_sum(inp, axis=-1)