diff options
author | Nupur Garg <nupurgarg@google.com> | 2018-06-25 16:09:44 -0700 |
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committer | TensorFlower Gardener <gardener@tensorflow.org> | 2018-06-25 16:12:36 -0700 |
commit | 3ce0d77e0c80bf5d2568fdeefd3042b62c96079f (patch) | |
tree | 0d0c279904efb03113f15d6f195286e64a19957b /tensorflow/contrib/lite/python/lite_test.py | |
parent | f2460fc21b22b65ca57c7ea996e4e8d003aa3371 (diff) |
Adds tf.keras support to TocoConverter.
PiperOrigin-RevId: 202037381
Diffstat (limited to 'tensorflow/contrib/lite/python/lite_test.py')
-rw-r--r-- | tensorflow/contrib/lite/python/lite_test.py | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/tensorflow/contrib/lite/python/lite_test.py b/tensorflow/contrib/lite/python/lite_test.py index a9475de474..ca2af5aaed 100644 --- a/tensorflow/contrib/lite/python/lite_test.py +++ b/tensorflow/contrib/lite/python/lite_test.py @@ -19,11 +19,13 @@ from __future__ import division from __future__ import print_function import os +import tempfile import numpy as np from tensorflow.contrib.lite.python import lite from tensorflow.contrib.lite.python import lite_constants from tensorflow.contrib.lite.python.interpreter import Interpreter +from tensorflow.python import keras from tensorflow.python.client import session from tensorflow.python.framework import constant_op from tensorflow.python.framework import dtypes @@ -618,5 +620,279 @@ class FromSavedModelTest(test_util.TensorFlowTestCase): self.assertTrue(tflite_model) +class FromKerasFile(test_util.TensorFlowTestCase): + + def setUp(self): + keras.backend.clear_session() + + def _getSequentialModel(self): + model = keras.models.Sequential() + model.add(keras.layers.Dense(2, input_shape=(3,))) + model.add(keras.layers.RepeatVector(3)) + model.add(keras.layers.TimeDistributed(keras.layers.Dense(3))) + model.compile( + loss=keras.losses.MSE, + optimizer=keras.optimizers.RMSprop(), + metrics=[keras.metrics.categorical_accuracy], + sample_weight_mode='temporal') + x = np.random.random((1, 3)) + y = np.random.random((1, 3, 3)) + model.train_on_batch(x, y) + model.predict(x) + + try: + fd, keras_file = tempfile.mkstemp('.h5') + keras.models.save_model(model, keras_file) + finally: + os.close(fd) + return keras_file + + def testSequentialModel(self): + """Test a Sequential tf.keras model with default inputs.""" + keras_file = self._getSequentialModel() + + converter = lite.TocoConverter.from_keras_model_file(keras_file) + tflite_model = converter.convert() + self.assertTrue(tflite_model) + + os.remove(keras_file) + + # Check values from converted model. + interpreter = Interpreter(model_content=tflite_model) + interpreter.allocate_tensors() + + input_details = interpreter.get_input_details() + self.assertEqual(1, len(input_details)) + self.assertEqual('dense_input', input_details[0]['name']) + self.assertEqual(np.float32, input_details[0]['dtype']) + self.assertTrue(([1, 3] == input_details[0]['shape']).all()) + self.assertEqual((0., 0.), input_details[0]['quantization']) + + output_details = interpreter.get_output_details() + self.assertEqual(1, len(output_details)) + self.assertEqual('time_distributed/Reshape_1', output_details[0]['name']) + self.assertEqual(np.float32, output_details[0]['dtype']) + self.assertTrue(([1, 3, 3] == output_details[0]['shape']).all()) + self.assertEqual((0., 0.), output_details[0]['quantization']) + + def testSequentialModelInputArray(self): + """Test a Sequential tf.keras model testing input arrays argument.""" + keras_file = self._getSequentialModel() + + # Invalid input array raises error. + with self.assertRaises(ValueError) as error: + lite.TocoConverter.from_keras_model_file( + keras_file, input_arrays=['invalid-input']) + self.assertEqual("Invalid tensors 'invalid-input' were found.", + str(error.exception)) + + # Valid input array. + converter = lite.TocoConverter.from_keras_model_file( + keras_file, input_arrays=['dense_input']) + tflite_model = converter.convert() + os.remove(keras_file) + self.assertTrue(tflite_model) + + def testSequentialModelInputShape(self): + """Test a Sequential tf.keras model testing input shapes argument.""" + keras_file = self._getSequentialModel() + + # Passing in shape of invalid input array has no impact as long as all input + # arrays have a shape. + converter = lite.TocoConverter.from_keras_model_file( + keras_file, input_shapes={'invalid-input': [2, 3]}) + tflite_model = converter.convert() + self.assertTrue(tflite_model) + + # Passing in shape of valid input array. + converter = lite.TocoConverter.from_keras_model_file( + keras_file, input_shapes={'dense_input': [2, 3]}) + tflite_model = converter.convert() + os.remove(keras_file) + self.assertTrue(tflite_model) + + # Check input shape from converted model. + interpreter = Interpreter(model_content=tflite_model) + interpreter.allocate_tensors() + + input_details = interpreter.get_input_details() + self.assertEqual(1, len(input_details)) + self.assertEqual('dense_input', input_details[0]['name']) + self.assertTrue(([2, 3] == input_details[0]['shape']).all()) + + def testSequentialModelOutputArray(self): + """Test a Sequential tf.keras model testing output arrays argument.""" + keras_file = self._getSequentialModel() + + # Invalid output array raises error. + with self.assertRaises(ValueError) as error: + lite.TocoConverter.from_keras_model_file( + keras_file, output_arrays=['invalid-output']) + self.assertEqual("Invalid tensors 'invalid-output' were found.", + str(error.exception)) + + # Valid output array. + converter = lite.TocoConverter.from_keras_model_file( + keras_file, output_arrays=['time_distributed/Reshape_1']) + tflite_model = converter.convert() + os.remove(keras_file) + self.assertTrue(tflite_model) + + def testFunctionalModel(self): + """Test a Functional tf.keras model with default inputs.""" + inputs = keras.layers.Input(shape=(3,), name='input') + x = keras.layers.Dense(2)(inputs) + output = keras.layers.Dense(3)(x) + + model = keras.models.Model(inputs, output) + model.compile( + loss=keras.losses.MSE, + optimizer=keras.optimizers.RMSprop(), + metrics=[keras.metrics.categorical_accuracy]) + x = np.random.random((1, 3)) + y = np.random.random((1, 3)) + model.train_on_batch(x, y) + + model.predict(x) + fd, keras_file = tempfile.mkstemp('.h5') + keras.models.save_model(model, keras_file) + + # Convert to TFLite model. + converter = lite.TocoConverter.from_keras_model_file(keras_file) + tflite_model = converter.convert() + self.assertTrue(tflite_model) + + os.close(fd) + os.remove(keras_file) + + # Check values from converted model. + interpreter = Interpreter(model_content=tflite_model) + interpreter.allocate_tensors() + + input_details = interpreter.get_input_details() + self.assertEqual(1, len(input_details)) + self.assertEqual('input', input_details[0]['name']) + self.assertEqual(np.float32, input_details[0]['dtype']) + self.assertTrue(([1, 3] == input_details[0]['shape']).all()) + self.assertEqual((0., 0.), input_details[0]['quantization']) + + output_details = interpreter.get_output_details() + self.assertEqual(1, len(output_details)) + self.assertEqual('dense_1/BiasAdd', output_details[0]['name']) + self.assertEqual(np.float32, output_details[0]['dtype']) + self.assertTrue(([1, 3] == output_details[0]['shape']).all()) + self.assertEqual((0., 0.), output_details[0]['quantization']) + + def testFunctionalModelMultipleInputs(self): + """Test a Functional tf.keras model with multiple inputs and outputs.""" + a = keras.layers.Input(shape=(3,), name='input_a') + b = keras.layers.Input(shape=(3,), name='input_b') + dense = keras.layers.Dense(4, name='dense') + c = dense(a) + d = dense(b) + e = keras.layers.Dropout(0.5, name='dropout')(c) + + model = keras.models.Model([a, b], [d, e]) + model.compile( + loss=keras.losses.MSE, + optimizer=keras.optimizers.RMSprop(), + metrics=[keras.metrics.mae], + loss_weights=[1., 0.5]) + + input_a_np = np.random.random((10, 3)) + input_b_np = np.random.random((10, 3)) + output_d_np = np.random.random((10, 4)) + output_e_np = np.random.random((10, 4)) + model.train_on_batch([input_a_np, input_b_np], [output_d_np, output_e_np]) + + model.predict([input_a_np, input_b_np], batch_size=5) + fd, keras_file = tempfile.mkstemp('.h5') + keras.models.save_model(model, keras_file) + + # Convert to TFLite model. + converter = lite.TocoConverter.from_keras_model_file(keras_file) + tflite_model = converter.convert() + self.assertTrue(tflite_model) + + os.close(fd) + os.remove(keras_file) + + # Check values from converted model. + interpreter = Interpreter(model_content=tflite_model) + interpreter.allocate_tensors() + + input_details = interpreter.get_input_details() + self.assertEqual(2, len(input_details)) + self.assertEqual('input_a', input_details[0]['name']) + self.assertEqual(np.float32, input_details[0]['dtype']) + self.assertTrue(([1, 3] == input_details[0]['shape']).all()) + self.assertEqual((0., 0.), input_details[0]['quantization']) + + self.assertEqual('input_b', input_details[1]['name']) + self.assertEqual(np.float32, input_details[1]['dtype']) + self.assertTrue(([1, 3] == input_details[1]['shape']).all()) + self.assertEqual((0., 0.), input_details[1]['quantization']) + + output_details = interpreter.get_output_details() + self.assertEqual(2, len(output_details)) + self.assertEqual('dense_1/BiasAdd', output_details[0]['name']) + self.assertEqual(np.float32, output_details[0]['dtype']) + self.assertTrue(([1, 4] == output_details[0]['shape']).all()) + self.assertEqual((0., 0.), output_details[0]['quantization']) + + self.assertEqual('dropout/Identity', output_details[1]['name']) + self.assertEqual(np.float32, output_details[1]['dtype']) + self.assertTrue(([1, 4] == output_details[1]['shape']).all()) + self.assertEqual((0., 0.), output_details[1]['quantization']) + + def testFunctionalSequentialModel(self): + """Test a Functional tf.keras model containing a Sequential model.""" + model = keras.models.Sequential() + model.add(keras.layers.Dense(2, input_shape=(3,))) + model.add(keras.layers.RepeatVector(3)) + model.add(keras.layers.TimeDistributed(keras.layers.Dense(3))) + model = keras.models.Model(model.input, model.output) + + model.compile( + loss=keras.losses.MSE, + optimizer=keras.optimizers.RMSprop(), + metrics=[keras.metrics.categorical_accuracy], + sample_weight_mode='temporal') + x = np.random.random((1, 3)) + y = np.random.random((1, 3, 3)) + model.train_on_batch(x, y) + model.predict(x) + + model.predict(x) + fd, keras_file = tempfile.mkstemp('.h5') + keras.models.save_model(model, keras_file) + + # Convert to TFLite model. + converter = lite.TocoConverter.from_keras_model_file(keras_file) + tflite_model = converter.convert() + self.assertTrue(tflite_model) + + os.close(fd) + os.remove(keras_file) + + # Check values from converted model. + interpreter = Interpreter(model_content=tflite_model) + interpreter.allocate_tensors() + + input_details = interpreter.get_input_details() + self.assertEqual(1, len(input_details)) + self.assertEqual('dense_input', input_details[0]['name']) + self.assertEqual(np.float32, input_details[0]['dtype']) + self.assertTrue(([1, 3] == input_details[0]['shape']).all()) + self.assertEqual((0., 0.), input_details[0]['quantization']) + + output_details = interpreter.get_output_details() + self.assertEqual(1, len(output_details)) + self.assertEqual('time_distributed/Reshape_1', output_details[0]['name']) + self.assertEqual(np.float32, output_details[0]['dtype']) + self.assertTrue(([1, 3, 3] == output_details[0]['shape']).all()) + self.assertEqual((0., 0.), output_details[0]['quantization']) + + if __name__ == '__main__': test.main() |