# coding=utf-8
# Copyright 2022 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Testing suite for the TensorFlow Whisper model. """

import inspect
import tempfile
import unittest

import numpy as np

from transformers import WhisperConfig, WhisperFeatureExtractor, WhisperProcessor
from transformers.testing_utils import is_tf_available, require_tf, require_tokenizers, slow
from transformers.utils import cached_property
from transformers.utils.import_utils import is_datasets_available

from ...test_configuration_common import ConfigTester
from ...test_modeling_tf_common import TFModelTesterMixin, floats_tensor, ids_tensor


if is_datasets_available():
    import datasets
    from datasets import load_dataset


if is_tf_available():
    import tensorflow as tf

    from transformers import TFWhisperForConditionalGeneration, TFWhisperModel, set_seed
    from transformers.models.whisper.modeling_tf_whisper import TFWhisperDecoder, TFWhisperEncoder


def prepare_whisper_inputs_dict(
    config,
    input_features,
    decoder_input_ids,
    attention_mask=None,
    decoder_attention_mask=None,
    head_mask=None,
    decoder_head_mask=None,
    cross_attn_head_mask=None,
):
    if decoder_attention_mask is None:
        decoder_attention_mask = tf.where(decoder_input_ids != config.pad_token_id, 1, 0)
    if head_mask is None:
        head_mask = tf.ones((config.encoder_layers, config.encoder_attention_heads))
    if decoder_head_mask is None:
        decoder_head_mask = tf.ones((config.decoder_layers, config.decoder_attention_heads))
    if cross_attn_head_mask is None:
        cross_attn_head_mask = tf.ones((config.decoder_layers, config.decoder_attention_heads))
    return {
        "input_features": input_features,
        "decoder_input_ids": decoder_input_ids,
        "decoder_attention_mask": decoder_attention_mask,
        "head_mask": head_mask,
        "decoder_head_mask": decoder_head_mask,
        "cross_attn_head_mask": cross_attn_head_mask,
    }


@require_tf
class TFWhisperModelTester:
    def __init__(
        self,
        parent,
        batch_size=13,
        seq_length=60,
        is_training=True,
        use_labels=False,
        vocab_size=99,
        hidden_size=16,
        num_hidden_layers=2,
        num_attention_heads=4,
        input_channels=1,
        hidden_act="gelu",
        hidden_dropout_prob=0.1,
        attention_probs_dropout_prob=0.1,
        max_position_embeddings=20,
        max_source_positions=30,
        max_target_positions=60,
        bos_token_id=98,
        eos_token_id=98,
        pad_token_id=0,
        num_mel_bins=80,
        decoder_start_token_id=85,
        num_conv_layers=1,
        suppress_tokens=None,
        begin_suppress_tokens=None,
    ):
        self.parent = parent
        self.batch_size = batch_size
        self.seq_length = seq_length
        self.is_training = is_training
        self.use_labels = use_labels
        self.vocab_size = vocab_size
        self.hidden_size = hidden_size
        self.num_hidden_layers = num_hidden_layers
        self.num_attention_heads = num_attention_heads
        self.input_channels = input_channels
        self.hidden_act = hidden_act
        self.hidden_dropout_prob = hidden_dropout_prob
        self.attention_probs_dropout_prob = attention_probs_dropout_prob
        self.num_mel_bins = num_mel_bins
        self.max_position_embeddings = max_position_embeddings
        self.max_source_positions = max_source_positions
        self.max_target_positions = max_target_positions
        self.eos_token_id = eos_token_id
        self.pad_token_id = pad_token_id
        self.bos_token_id = bos_token_id
        self.decoder_start_token_id = decoder_start_token_id
        self.num_conv_layers = num_conv_layers
        self.suppress_tokens = suppress_tokens
        self.begin_suppress_tokens = begin_suppress_tokens

    def prepare_config_and_inputs(self):
        input_features = floats_tensor([self.batch_size, self.num_mel_bins, self.seq_length], self.vocab_size)

        decoder_input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size)

        config = self.get_config()
        inputs_dict = prepare_whisper_inputs_dict(
            config,
            attention_mask=None,
            input_features=input_features,
            decoder_input_ids=decoder_input_ids,
        )
        return config, inputs_dict

    def get_config(self):
        return WhisperConfig(
            vocab_size=self.vocab_size,
            d_model=self.hidden_size,
            encoder_layers=self.num_hidden_layers,
            decoder_layers=self.num_hidden_layers,
            encoder_attention_heads=self.num_attention_heads,
            decoder_attention_heads=self.num_attention_heads,
            input_channels=self.input_channels,
            dropout=self.hidden_dropout_prob,
            attention_dropout=self.attention_probs_dropout_prob,
            max_position_embeddings=self.max_position_embeddings,
            max_source_positions=self.max_source_positions,
            max_target_positions=self.max_target_positions,
            eos_token_id=self.eos_token_id,
            bos_token_id=self.bos_token_id,
            pad_token_id=self.pad_token_id,
            decoder_ffn_dim=self.hidden_size,
            encoder_ffn_dim=self.hidden_size,
            decoder_start_token_id=self.decoder_start_token_id,
            suppress_tokens=self.suppress_tokens,
            begin_suppress_tokens=self.begin_suppress_tokens,
        )

    def prepare_config_and_inputs_for_common(self):
        config, inputs_dict = self.prepare_config_and_inputs()
        return config, inputs_dict

    def get_subsampled_output_lengths(self, input_lengths):
        """
        Computes the output length of the convolutional layers
        """

        for i in range(self.num_conv_layers):
            input_lengths = (input_lengths - 1) // 2 + 1

        return input_lengths

    def create_and_check_model_forward(self, config, inputs_dict):
        model = TFWhisperModel(config=config)

        input_features = inputs_dict["input_features"]
        decoder_input_ids = inputs_dict["decoder_input_ids"]

        # first forward pass
        last_hidden_state = model(input_features, decoder_input_ids=decoder_input_ids).last_hidden_state

        self.parent.assertTrue(last_hidden_state.shape, (13, 7, 16))

    def create_and_check_decoder_model_past_large_inputs(self, config, inputs_dict):
        model = TFWhisperModel(config=config).get_decoder()
        # take a slice so we're shorter than the seqeuence length and can append later
        input_ids = inputs_dict["decoder_input_ids"][:, :-10]
        attention_mask = inputs_dict["decoder_attention_mask"][:, :-10]

        # first forward pass
        outputs = model(input_ids, attention_mask=attention_mask, use_cache=True)

        output, past_key_values = outputs.to_tuple()

        # create hypothetical multiple next token and extent to next_input_ids
        next_token = ids_tensor((self.batch_size, 3), config.vocab_size)
        next_tokens = tf.where(next_token <= 2, 2, next_token)
        next_attn_mask = ids_tensor((self.batch_size, 3), 2)

        # append to next input_ids and
        next_input_ids = tf.concat([input_ids, next_tokens], axis=-1)
        next_attention_mask = tf.concat([attention_mask, next_attn_mask], axis=-1)

        output_from_no_past = model(next_input_ids, attention_mask=next_attention_mask)["last_hidden_state"]
        output_from_past = model(next_tokens, attention_mask=next_attention_mask, past_key_values=past_key_values)[
            "last_hidden_state"
        ]

        # select random slice
        random_slice_idx = np.random.randint(0, output_from_past.shape[-1])
        output_from_no_past_slice = output_from_no_past[:, -3:, random_slice_idx]
        output_from_past_slice = output_from_past[:, :, random_slice_idx]

        self.parent.assertTrue(output_from_past_slice.shape[1] == next_tokens.shape[1])

        # test that outputs are equal for slice
        self.parent.assertTrue(np.allclose(output_from_past_slice, output_from_no_past_slice, atol=1e-2))

    def check_encoder_decoder_model_standalone(self, config, inputs_dict):
        model = TFWhisperModel(config=config)
        outputs = model(**inputs_dict)

        encoder_last_hidden_state = outputs.encoder_last_hidden_state
        last_hidden_state = outputs.last_hidden_state

        with tempfile.TemporaryDirectory() as tmpdirname:
            encoder = model.get_encoder()
            encoder.save_pretrained(tmpdirname)
            encoder = TFWhisperEncoder.from_pretrained(tmpdirname)

        encoder_last_hidden_state_2 = encoder(inputs_dict["input_features"])[0]

        self.parent.assertTrue((encoder_last_hidden_state_2 - encoder_last_hidden_state).abs().max() < 1e-3)

        with tempfile.TemporaryDirectory() as tmpdirname:
            decoder = model.get_decoder()
            decoder.save_pretrained(tmpdirname)
            decoder = TFWhisperDecoder.from_pretrained(tmpdirname)

        last_hidden_state_2 = decoder(
            input_ids=inputs_dict["decoder_input_ids"],
            attention_mask=inputs_dict["decoder_attention_mask"],
            encoder_hidden_states=encoder_last_hidden_state,
        )[0]

        self.parent.assertTrue((last_hidden_state_2 - last_hidden_state).abs().max() < 1e-3)


@require_tf
class TFWhisperModelTest(TFModelTesterMixin, unittest.TestCase):
    all_model_classes = (TFWhisperModel, TFWhisperForConditionalGeneration) if is_tf_available() else ()
    all_generative_model_classes = (TFWhisperForConditionalGeneration,) if is_tf_available() else ()
    is_encoder_decoder = True
    fx_compatible = False
    test_pruning = False
    test_missing_keys = False
    test_onnx = False

    input_name = "input_features"

    def setUp(self):
        self.model_tester = TFWhisperModelTester(self)
        self.config_tester = ConfigTester(self, config_class=WhisperConfig)
        self.maxDiff = 3000

    def test_config(self):
        self.config_tester.run_common_tests()

    def test_save_load_strict(self):
        config, inputs_dict = self.model_tester.prepare_config_and_inputs()
        for model_class in self.all_model_classes:
            model = model_class(config)

            model(model.dummy_inputs)

            with tempfile.TemporaryDirectory() as tmpdirname:
                model.save_pretrained(tmpdirname, saved_model=False)
                model2, info = model_class.from_pretrained(tmpdirname, output_loading_info=True)
            self.assertEqual(info["missing_keys"], [])

    def test_model_forward(self):
        config_and_inputs = self.model_tester.prepare_config_and_inputs()
        self.model_tester.create_and_check_model_forward(*config_and_inputs)

    def test_decoder_model_past_with_large_inputs(self):
        config_and_inputs = self.model_tester.prepare_config_and_inputs()
        self.model_tester.create_and_check_decoder_model_past_large_inputs(*config_and_inputs)

    def _get_input_ids_and_config(self):
        config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
        input_ids = inputs_dict[self.input_name]

        # cut to half length & take max batch_size 3
        max_batch_size = 3
        input_ids = input_ids[:max_batch_size, :, :]

        # generate max 3 tokens
        max_length = input_ids.shape[-1] + 3
        if config.eos_token_id is not None and config.pad_token_id is None:
            # hack to allow generate for models such as GPT2 as is done in `generate()`
            config.pad_token_id = config.eos_token_id

        return config, input_ids, None, max_length

    # not implemented currently
    def test_inputs_embeds(self):
        pass

    @unittest.skip("Training is not yet supported")
    def test_training(self):
        pass

    def test_generate_with_head_masking(self):
        pass

    @unittest.skip("fp16 is not yet supported for TF models")
    def test_generate_fp16(self):
        config, input_dict = self.model_tester.prepare_config_and_inputs()
        config.max_target_positions = 400
        input_features = input_dict["input_features"]
        model = TFWhisperForConditionalGeneration(config)
        model.generate(input_features)
        model.generate(input_features, num_beams=4, do_sample=True, early_stopping=False, num_return_sequences=3)

    def test_forward_signature(self):
        config, _ = self.model_tester.prepare_config_and_inputs_for_common()

        for model_class in self.all_model_classes:
            model = model_class(config)
            signature = inspect.signature(model.call)
            # signature.parameters is an OrderedDict => so arg_names order is deterministic
            arg_names = [*signature.parameters.keys()]

            expected_arg_names = [
                "input_features",
                "decoder_input_ids",
                "decoder_attention_mask",
            ]
            expected_arg_names.extend(
                ["decoder_position_ids", "head_mask", "decoder_head_mask", "cross_attn_head_mask", "encoder_outputs"]
                if "head_mask" and "decoder_head_mask" and "cross_attn_head_mask" in arg_names
                else ["encoder_outputs"]
            )
            self.assertListEqual(arg_names[: len(expected_arg_names)], expected_arg_names)

    def test_hidden_states_output(self):
        def check_hidden_states_output(inputs_dict, config, model_class):
            model = model_class(config)
            outputs = model(**self._prepare_for_class(inputs_dict, model_class))

            hidden_states = outputs.encoder_hidden_states if config.is_encoder_decoder else outputs.hidden_states

            expected_num_layers = getattr(
                self.model_tester, "expected_num_hidden_layers", self.model_tester.num_hidden_layers + 1
            )
            self.assertEqual(len(hidden_states), expected_num_layers)

            if hasattr(self.model_tester, "encoder_seq_length"):
                seq_length = self.model_tester.encoder_seq_length
            else:
                seq_length = self.model_tester.seq_length

            subsampled_seq_length = model._get_feat_extract_output_lengths(seq_length)

            self.assertListEqual(
                list(hidden_states[0].shape[-2:]),
                [subsampled_seq_length, self.model_tester.hidden_size],
            )

            if config.is_encoder_decoder:
                hidden_states = outputs.decoder_hidden_states

                self.assertIsInstance(hidden_states, (list, tuple))
                self.assertEqual(len(hidden_states), expected_num_layers)

                decoder_seq_length = getattr(self.model_tester, "decoder_seq_length", seq_length)

                self.assertListEqual(
                    list(hidden_states[0].shape[-2:]),
                    [decoder_seq_length, self.model_tester.hidden_size],
                )

        config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()

        for model_class in self.all_model_classes:
            inputs_dict["output_hidden_states"] = True
            check_hidden_states_output(inputs_dict, config, model_class)

            # check that output_hidden_states also work using config
            del inputs_dict["output_hidden_states"]
            config.output_hidden_states = True

            check_hidden_states_output(inputs_dict, config, model_class)

    def test_attention_outputs(self):
        config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
        config.return_dict = True

        seq_len = getattr(self.model_tester, "seq_length", None)
        decoder_seq_length = getattr(self.model_tester, "decoder_seq_length", seq_len)
        encoder_seq_length = getattr(self.model_tester, "encoder_seq_length", seq_len)
        encoder_key_length = getattr(self.model_tester, "key_length", encoder_seq_length)
        decoder_key_length = getattr(self.model_tester, "decoder_key_length", encoder_key_length)

        for model_class in self.all_model_classes:
            inputs_dict["output_attentions"] = True
            inputs_dict["output_hidden_states"] = False
            config.return_dict = True
            model = model_class(config)

            subsampled_encoder_seq_length = model._get_feat_extract_output_lengths(encoder_seq_length)
            subsampled_encoder_key_length = model._get_feat_extract_output_lengths(encoder_key_length)

            outputs = model(**self._prepare_for_class(inputs_dict, model_class))
            attentions = outputs.encoder_attentions if config.is_encoder_decoder else outputs.attentions
            self.assertEqual(len(attentions), self.model_tester.num_hidden_layers)

            # check that output_attentions also work using config
            del inputs_dict["output_attentions"]
            config.output_attentions = True
            model = model_class(config)

            outputs = model(**self._prepare_for_class(inputs_dict, model_class))
            attentions = outputs.encoder_attentions if config.is_encoder_decoder else outputs.attentions
            self.assertEqual(len(attentions), self.model_tester.num_hidden_layers)

            self.assertListEqual(
                list(attentions[0].shape[-3:]),
                [self.model_tester.num_attention_heads, subsampled_encoder_seq_length, subsampled_encoder_key_length],
            )
            out_len = len(outputs)

            correct_outlen = 5

            # loss is at first position
            if "labels" in inputs_dict:
                correct_outlen += 1  # loss is added to beginning
            if "past_key_values" in outputs:
                correct_outlen += 1  # past_key_values have been returned

            self.assertEqual(out_len, correct_outlen)

            # decoder attentions
            decoder_attentions = outputs.decoder_attentions
            self.assertIsInstance(decoder_attentions, (list, tuple))
            self.assertEqual(len(decoder_attentions), self.model_tester.num_hidden_layers)
            self.assertListEqual(
                list(decoder_attentions[0].shape[-3:]),
                [self.model_tester.num_attention_heads, decoder_seq_length, decoder_key_length],
            )

            # cross attentions
            cross_attentions = outputs.cross_attentions
            self.assertIsInstance(cross_attentions, (list, tuple))
            self.assertEqual(len(cross_attentions), self.model_tester.num_hidden_layers)
            self.assertListEqual(
                list(cross_attentions[0].shape[-3:]),
                [
                    self.model_tester.num_attention_heads,
                    decoder_seq_length,
                    subsampled_encoder_key_length,
                ],
            )

            # Check attention is always last and order is fine
            inputs_dict["output_attentions"] = True
            inputs_dict["output_hidden_states"] = True
            model = model_class(config)
            outputs = model(**self._prepare_for_class(inputs_dict, model_class))

            added_hidden_states = 2
            self.assertEqual(out_len + added_hidden_states, len(outputs))

            self_attentions = outputs.encoder_attentions if config.is_encoder_decoder else outputs.attentions

            self.assertEqual(len(self_attentions), self.model_tester.num_hidden_layers)
            self.assertListEqual(
                list(self_attentions[0].shape[-3:]),
                [self.model_tester.num_attention_heads, subsampled_encoder_seq_length, subsampled_encoder_key_length],
            )

    def test_generate_without_input_ids(self):
        pass

    @staticmethod
    def _get_encoder_outputs(
        model, input_ids, attention_mask, output_attentions=None, output_hidden_states=None, num_interleave=1
    ):
        encoder = model.get_encoder()
        encoder_outputs = encoder(
            input_ids,
            output_attentions=output_attentions,
            output_hidden_states=output_hidden_states,
        )
        encoder_outputs["last_hidden_state"] = encoder_outputs.last_hidden_state.repeat_interleave(
            num_interleave, dim=0
        )
        input_ids = input_ids[:, :, 0]
        input_ids = tf.zeros_like(input_ids[:, :1], dtype=tf.int64) + tf.convert_to_tensor(
            [model._get_decoder_start_token_id()]
        )
        attention_mask = None
        return encoder_outputs, input_ids, attention_mask

    def _check_outputs(self, output, input_ids, config, use_cache=False, num_return_sequences=1):
        batch_size, mel, seq_length = input_ids.shape
        subsampled_seq_length = self.model_tester.get_subsampled_output_lengths(seq_length)
        num_sequences_in_output = batch_size * num_return_sequences
        gen_len = (
            output.sequences.shape[-1] - 1 if config.is_encoder_decoder else output.sequences.shape[-1] - seq_length
        )

        # scores
        self._check_scores(num_sequences_in_output, output.scores, length=gen_len, config=config)

        # Attentions
        # encoder
        self._check_encoder_attention_for_generate(
            output.encoder_attentions, batch_size, config, subsampled_seq_length
        )
        # decoder
        self._check_attentions_for_generate(
            num_sequences_in_output,
            output.decoder_attentions,
            min_length=1,
            max_length=output.sequences.shape[-1],
            config=config,
            use_cache=use_cache,
        )

        # Hidden States
        # encoder
        self._check_encoder_hidden_states_for_generate(
            output.encoder_hidden_states, batch_size, config, subsampled_seq_length
        )

        # decoder
        self._check_hidden_states_for_generate(
            num_sequences_in_output,
            output.decoder_hidden_states,
            min_length=1,
            max_length=output.sequences.shape[-1],
            config=config,
            use_cache=use_cache,
        )

    # overwritten from parent due to the inability to work when non-text inputs are not passed AND because the input is
    # `input_features`
    def test_lm_head_model_random_no_beam_search_generate(self):
        config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
        input_features = inputs_dict.get("input_features", None)

        # iterate over all generative models
        for model_class in self.all_generative_model_classes:
            model = model_class(config)

            if config.bos_token_id is None:
                # if bos token id is not defined model needs input_features
                with self.assertRaises(AssertionError):
                    model.generate(do_sample=True, max_length=5)
                # num_return_sequences = 1
                self._check_generated_ids(model.generate(input_features, do_sample=True))

            with self.assertRaises(ValueError):
                # generating multiple sequences when no beam search generation
                # is not allowed as it would always generate the same sequences
                model.generate(input_features, do_sample=False, num_return_sequences=2)

            # num_return_sequences > 1, sample
            self._check_generated_ids(model.generate(input_features, do_sample=True, num_return_sequences=2))

            # check bad words tokens language generation
            # create list of 1-seq bad token and list of 2-seq of bad tokens
            bad_words_ids = [self._generate_random_bad_tokens(1, model), self._generate_random_bad_tokens(2, model)]
            output_tokens = model.generate(
                input_features, do_sample=True, bad_words_ids=bad_words_ids, num_return_sequences=2
            )
            # only count generated tokens
            generated_ids = output_tokens[:, input_features.shape[-1] :]
            self.assertFalse(self._check_match_tokens(generated_ids.numpy().tolist(), bad_words_ids))

    # overwritten from parent due to the inability to work when non-text inputs are not passed AND because the input is
    # `input_features`
    def test_lm_head_model_random_beam_search_generate(self):
        config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
        input_features = inputs_dict.get("input_features", None)

        for model_class in self.all_generative_model_classes:
            model = model_class(config)

            if config.bos_token_id is None:
                # if bos token id is not defined model needs input_ids, num_return_sequences = 1
                self._check_generated_ids(model.generate(input_features, do_sample=True, num_beams=2))

            with self.assertRaises(ValueError):
                # generating more sequences than having beams leads is not possible
                model.generate(input_features, do_sample=False, num_return_sequences=3, num_beams=2)

            # num_return_sequences > 1, sample
            self._check_generated_ids(
                model.generate(
                    input_features,
                    do_sample=True,
                    num_beams=2,
                    num_return_sequences=2,
                )
            )
            # num_return_sequences > 1, greedy
            self._check_generated_ids(
                model.generate(input_features, do_sample=False, num_beams=2, num_return_sequences=2)
            )

            # check bad words tokens language generation
            # create list of 1-seq bad token and list of 2-seq of bad tokens
            bad_words_ids = [self._generate_random_bad_tokens(1, model), self._generate_random_bad_tokens(2, model)]
            output_tokens = model.generate(
                input_features, do_sample=False, bad_words_ids=bad_words_ids, num_beams=2, num_return_sequences=2
            )
            # only count generated tokens
            generated_ids = output_tokens[:, input_features.shape[-1] :]
            self.assertFalse(self._check_match_tokens(generated_ids.numpy().tolist(), bad_words_ids))


@require_tf
@require_tokenizers
class TFWhisperModelIntegrationTests(unittest.TestCase):
    @cached_property
    def default_processor(self):
        return WhisperProcessor.from_pretrained("openai/whisper-base")

    def _load_datasamples(self, num_samples):

        ds = load_dataset("hf-internal-testing/librispeech_asr_dummy", "clean", split="validation")
        # automatic decoding with librispeech
        speech_samples = ds.sort("id").select(range(num_samples))[:num_samples]["audio"]

        return [x["array"] for x in speech_samples]

    @slow
    def test_tiny_logits_librispeech(self):
        set_seed(0)
        model = TFWhisperModel.from_pretrained("openai/whisper-tiny")
        input_speech = self._load_datasamples(1)
        feature_extractor = WhisperFeatureExtractor()
        input_features = feature_extractor(input_speech, return_tensors="tf").input_features

        logits = model(
            input_features,
            decoder_input_ids=tf.convert_to_tensor([[50258, 50259, 50359]]),
            output_hidden_states=False,
            output_attentions=False,
            return_dict=False,
            use_cache=False,
        )

        # fmt: off
        EXPECTED_LOGITS = tf.convert_to_tensor(
            [
                2.9892, -6.7607, 5.7348, 3.6096, 0.2152, -5.7321, 4.8855, -1.6407,
                0.2823, -1.5718, 10.4269, 3.4427, 0.0219, -8.0612, 3.4784, 8.4246,
                4.0575, -2.2864, 11.1084, 0.9963, 0.9884, -8.5154, -3.5469, -9.3713,
                0.9786, 3.5435, 7.4850, -5.2579, -1.4366, 10.4841
            ]
        )
        # fmt: on
        self.assertTrue(np.allclose(logits[0][0, 0, :30], EXPECTED_LOGITS, atol=1e-4))

        # fmt: off
        EXPECTED_GENERATION = tf.convert_to_tensor(
            [
                -1.4651, -2.6944, 2.7821, 2.3793, 4.0738, 0.0188, -3.3203, 1.9836,
                0.0520, 0.7095, 1.1063, 0.2952, -3.6786, -0.5249, 0.3105, 4.7691,
                1.1562, 1.3046, 0.5810, -0.3624, 1.7006, 1.3424, 0.9817, 2.1958,
                1.8775, -5.7046, -0.7679, 4.0113, 2.6848, 2.8609
            ]
        )
        # fmt: on

        head_logits = logits[0] @ tf.transpose(model.model.decoder.embed_tokens.weights[0])
        self.assertTrue(np.allclose(head_logits[0, 0, :30], EXPECTED_GENERATION, atol=1e-4))

    @slow
    def test_small_en_logits_librispeech(self):
        set_seed(0)
        model = TFWhisperModel.from_pretrained("openai/whisper-small.en")

        input_speech = self._load_datasamples(1)

        feaure_extractor = WhisperFeatureExtractor()
        input_features = feaure_extractor(input_speech, return_tensors="tf").input_features

        logits = model(
            input_features,
            decoder_input_ids=tf.convert_to_tensor([[model.config.decoder_start_token_id]]),
            output_hidden_states=False,
            output_attentions=False,
            use_cache=False,
        )

        logits = logits.last_hidden_state @ tf.transpose(model.model.decoder.embed_tokens.weights[0])

        # fmt: off
        EXPECTED_LOGITS = tf.convert_to_tensor(
            [
                -3.6784, -7.7211, -9.5070, -11.9286, -7.6489, -9.7026, -5.6188,
                -8.0104, -4.6238, -5.1833, -9.0485, -3.4079, -5.4874, -2.6935,
                -6.3479, -7.3398, -6.9558, -7.6867, -7.4748, -8.3463, -9.9781,
                -10.8389, -10.3105, -11.7201, -9.7261, -7.1590, -5.9272, -12.4509,
                -11.1146, -8.1918
            ]
        )
        # fmt: on
        self.assertTrue(np.allclose(logits[0, 0, :30], EXPECTED_LOGITS, atol=1e-4))

    @slow
    def test_large_logits_librispeech(self):
        set_seed(0)

        model = TFWhisperModel.from_pretrained("openai/whisper-large")

        input_speech = self._load_datasamples(1)

        processor = WhisperProcessor.from_pretrained("openai/whisper-large")
        processed_inputs = processor(audio=input_speech, text="This part of the speech", return_tensors="tf")
        input_features = processed_inputs.input_features
        labels = processed_inputs.labels

        logits = model(
            input_features,
            decoder_input_ids=labels,
            output_hidden_states=False,
            output_attentions=False,
            use_cache=False,
        )

        logits = logits.last_hidden_state @ tf.transpose(model.model.decoder.embed_tokens.weights[0])

        # fmt: off
        EXPECTED_LOGITS = tf.convert_to_tensor(
            [
                2.1382, 0.9381, 4.4671, 3.5589, 2.4022, 3.8576, -0.6521, 2.5472,
                1.8301, 1.9957, 2.3432, 1.4678, 0.5459, 2.2597, 1.5179, 2.5357,
                1.1624, 0.6194, 1.0757, 1.8259, 2.4076, 1.6601, 2.3503, 1.3376,
                1.9891, 1.8635, 3.8931, 5.3699, 4.4772, 3.9184
            ]
        )
        # fmt: on

        self.assertTrue(np.allclose(logits[0, 0, :30], EXPECTED_LOGITS, atol=1e-4))

    @slow
    def test_tiny_en_generation(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-tiny.en")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-tiny.en")
        model.config.decoder_start_token_id = 50257

        input_speech = self._load_datasamples(1)
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features

        generated_ids = model.generate(input_features, num_beams=5, max_length=20)
        transcript = processor.tokenizer.batch_decode(generated_ids)[0]

        EXPECTED_TRANSCRIPT = (
            "<|startoftranscript|><|notimestamps|> Mr. Quilter is the apostle of the middle"
            " classes, and we are glad to"
        )
        self.assertEqual(transcript, EXPECTED_TRANSCRIPT)

    @slow
    def test_tiny_generation(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-tiny")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-tiny")

        input_speech = self._load_datasamples(1)
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features

        generated_ids = model.generate(input_features, num_beams=5, max_length=20)
        transcript = processor.tokenizer.decode(generated_ids[0])

        EXPECTED_TRANSCRIPT = (
            "<|startoftranscript|><|en|><|transcribe|><|notimestamps|> Mr. Quilter is the apostle of the middle"
            " classes and we are glad"
        )
        self.assertEqual(transcript, EXPECTED_TRANSCRIPT)

    @slow
    def test_tiny_xla_generation(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-tiny")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-tiny")

        input_speech = self._load_datasamples(1)
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features

        xla_generate = tf.function(model.generate, jit_compile=True)

        generated_ids = model.generate(input_features, num_beams=5, max_length=20)
        generated_ids_xla = xla_generate(input_features, num_beams=5, max_length=20)

        transcript = processor.tokenizer.decode(generated_ids[0])
        transcript_xla = processor.tokenizer.decode(generated_ids_xla[0])

        EXPECTED_TRANSCRIPT = (
            "<|startoftranscript|><|en|><|transcribe|><|notimestamps|> Mr. Quilter is the apostle of the middle"
            " classes and we are glad"
        )
        self.assertEqual(transcript, EXPECTED_TRANSCRIPT)
        self.assertEqual(transcript_xla, EXPECTED_TRANSCRIPT)

    @slow
    def test_large_generation(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-large")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-large")

        input_speech = self._load_datasamples(1)
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features

        model.config.forced_decoder_ids = processor.get_decoder_prompt_ids(language="en", task="transcribe")
        generated_ids = model.generate(input_features, do_sample=False, max_length=20)
        transcript = processor.batch_decode(generated_ids, skip_special_tokens=True)[0]

        EXPECTED_TRANSCRIPT = " Mr. Quilter is the apostle of the middle classes and we are glad"
        self.assertEqual(transcript, EXPECTED_TRANSCRIPT)

    @slow
    def test_large_generation_multilingual(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-large")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-large")

        ds = load_dataset("common_voice", "ja", split="test", streaming=True)
        ds = ds.cast_column("audio", datasets.Audio(sampling_rate=16_000))
        input_speech = next(iter(ds))["audio"]["array"]
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features

        model.config.forced_decoder_ids = processor.get_decoder_prompt_ids(language="ja", task="transcribe")
        generated_ids = model.generate(input_features, do_sample=False, max_length=20)
        transcript = processor.batch_decode(generated_ids, skip_special_tokens=True)[0]

        EXPECTED_TRANSCRIPT = "木村さんに電話を貸してもらいました"
        self.assertEqual(transcript, EXPECTED_TRANSCRIPT)

        model.config.forced_decoder_ids = processor.get_decoder_prompt_ids(language="en", task="transcribe")
        generated_ids = model.generate(
            input_features,
            do_sample=False,
            max_length=20,
        )
        transcript = processor.batch_decode(generated_ids, skip_special_tokens=True)[0]

        EXPECTED_TRANSCRIPT = " Kimura san ni denwa wo kaite moraimashita"
        self.assertEqual(transcript, EXPECTED_TRANSCRIPT)

        model.config.forced_decoder_ids = processor.get_decoder_prompt_ids(language="ja", task="translate")
        generated_ids = model.generate(input_features, do_sample=False, max_length=20)
        transcript = processor.batch_decode(generated_ids, skip_special_tokens=True)[0]

        EXPECTED_TRANSCRIPT = " I borrowed a phone from Kimura san"
        self.assertEqual(transcript, EXPECTED_TRANSCRIPT)

    @slow
    def test_large_batched_generation(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-large")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-large")

        input_speech = self._load_datasamples(4)
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features
        generated_ids = model.generate(input_features, max_length=20)

        # fmt: off
        EXPECTED_LOGITS = tf.convert_to_tensor(
            [
                [50258, 50358, 50363, 2221, 13, 2326, 388, 391, 307, 264, 50244, 295, 264, 2808, 5359, 293, 321, 366, 5404, 281],
                [50258, 50358, 50363, 6966, 307, 2221, 13, 2326, 388, 391, 311, 9060, 1570, 1880, 813, 702, 1871, 13, 50257, 50257],
                [50258, 50358, 50363, 634, 5112, 505, 300, 412, 341, 42729, 3196, 295, 264, 1064, 11, 365, 5272, 293, 12904, 9256],
                [50258, 50358, 50363, 634, 575, 12525, 22618, 1968, 6144, 35617, 20084, 1756, 311, 589, 307, 534, 10281, 934, 439, 11]
            ]
        )
        # fmt: on

        self.assertTrue(np.allclose(generated_ids, EXPECTED_LOGITS))

        # fmt: off
        EXPECTED_TRANSCRIPT = [
            ' Mr. Quilter is the apostle of the middle classes and we are glad to',
            " Nor is Mr. Quilter's manner less interesting than his matter.",
            " He tells us that at this festive season of the year, with Christmas and roast beef",
            " He has grave doubts whether Sir Frederick Layton's work is really Greek after all,"
        ]
        # fmt: on

        transcript = processor.batch_decode(generated_ids, skip_special_tokens=True)
        self.assertListEqual(transcript, EXPECTED_TRANSCRIPT)

    @slow
    def test_tiny_en_batched_generation(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-tiny.en")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-tiny.en")

        input_speech = self._load_datasamples(4)
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features
        generated_ids = model.generate(input_features, max_length=20)

        # fmt: off
        EXPECTED_LOGITS = tf.convert_to_tensor(
            [
                [50257, 50362, 1770, 13, 2264, 346, 353, 318, 262, 46329, 286, 262, 3504, 6097, 11, 290, 356, 389, 9675, 284],
                [50257, 50362, 5414, 318, 1770, 13, 2264, 346, 353, 338, 5642, 1342, 3499, 621, 465, 2300, 13, 50256, 50256, 50256],
                [50257, 50362, 679, 4952, 514, 326, 379, 428, 43856, 1622, 286, 262, 614, 11, 351, 6786, 290, 32595, 12023, 28236],
                [50257, 50362, 679, 468, 12296, 17188, 1771, 7361, 26113, 18881, 1122, 338, 670, 318, 1107, 8312, 706, 477, 290, 460]
            ]

        )
        # fmt: on

        self.assertTrue(np.allclose(generated_ids, EXPECTED_LOGITS))

        # fmt: off
        EXPECTED_TRANSCRIPT = [
            " Mr. Quilter is the apostle of the middle classes, and we are glad to",
            " Nor is Mr. Quilter's manner less interesting than his matter.",
            " He tells us that at this festive season of the year, with Christmas and roast beef looming",
            " He has grave doubts whether Sir Frederick Layton's work is really Greek after all and can",
        ]
        # fmt: on

        transcript = processor.batch_decode(generated_ids, skip_special_tokens=True)
        self.assertListEqual(transcript, EXPECTED_TRANSCRIPT)

    @slow
    def test_tiny_en_batched_xla_generation(self):
        set_seed(0)
        processor = WhisperProcessor.from_pretrained("openai/whisper-tiny.en")
        model = TFWhisperForConditionalGeneration.from_pretrained("openai/whisper-tiny.en")

        input_speech = self._load_datasamples(4)
        input_features = processor.feature_extractor(raw_speech=input_speech, return_tensors="tf").input_features

        xla_generate = tf.function(model.generate, jit_compile=True)

        generated_ids = model.generate(input_features, max_length=20)
        generated_ids_xla = xla_generate(input_features, max_length=20)

        # fmt: off
        EXPECTED_LOGITS = tf.convert_to_tensor(
            [
                [50257, 50362, 1770, 13, 2264, 346, 353, 318, 262, 46329, 286, 262, 3504, 6097, 11, 290, 356, 389, 9675, 284],
                [50257, 50362, 5414, 318, 1770, 13, 2264, 346, 353, 338, 5642, 1342, 3499, 621, 465, 2300, 13, 50256, 50256, 50256],
                [50257, 50362, 679, 4952, 514, 326, 379, 428, 43856, 1622, 286, 262, 614, 11, 351, 6786, 290, 32595, 12023, 28236],
                [50257, 50362, 679, 468, 12296, 17188, 1771, 7361, 26113, 18881, 1122, 338, 670, 318, 1107, 8312, 706, 477, 290, 460]
            ]

        )
        # fmt: on

        self.assertTrue(np.allclose(generated_ids, EXPECTED_LOGITS))
        self.assertTrue(np.allclose(generated_ids_xla, EXPECTED_LOGITS))

        # fmt: off
        EXPECTED_TRANSCRIPT = [
            " Mr. Quilter is the apostle of the middle classes, and we are glad to",
            " Nor is Mr. Quilter's manner less interesting than his matter.",
            " He tells us that at this festive season of the year, with Christmas and roast beef looming",
            " He has grave doubts whether Sir Frederick Layton's work is really Greek after all and can",
        ]
        # fmt: on

        transcript = processor.batch_decode(generated_ids, skip_special_tokens=True)
        transcript_xla = processor.batch_decode(generated_ids_xla, skip_special_tokens=True)
        self.assertListEqual(transcript, EXPECTED_TRANSCRIPT)
        self.assertListEqual(transcript_xla, EXPECTED_TRANSCRIPT)
