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# Copyright (c) ONNX Project Contributors
#
# SPDX-License-Identifier: Apache-2.0

import numpy as np

import onnx
from onnx.backend.test.case.base import Base
from onnx.backend.test.case.node import expect


class Compress(Base):
    @staticmethod
    def export_compress_0() -> None:
        node = onnx.helper.make_node(
            "Compress",
            inputs=["input", "condition"],
            outputs=["output"],
            axis=0,
        )
        input = np.array([[1, 2], [3, 4], [5, 6]]).astype(np.float32)
        condition = np.array([0, 1, 1])
        output = np.compress(condition, input, axis=0)
        # print(output)
        # [[ 3.  4.]
        # [ 5.  6.]]

        expect(
            node,
            inputs=[input, condition.astype(bool)],
            outputs=[output],
            name="test_compress_0",
        )

    @staticmethod
    def export_compress_1() -> None:
        node = onnx.helper.make_node(
            "Compress",
            inputs=["input", "condition"],
            outputs=["output"],
            axis=1,
        )
        input = np.array([[1, 2], [3, 4], [5, 6]]).astype(np.float32)
        condition = np.array([0, 1])
        output = np.compress(condition, input, axis=1)
        # print(output)
        # [[ 2.]
        # [ 4.]
        # [ 6.]]

        expect(
            node,
            inputs=[input, condition.astype(bool)],
            outputs=[output],
            name="test_compress_1",
        )

    @staticmethod
    def export_compress_default_axis() -> None:
        node = onnx.helper.make_node(
            "Compress",
            inputs=["input", "condition"],
            outputs=["output"],
        )
        input = np.array([[1, 2], [3, 4], [5, 6]]).astype(np.float32)
        condition = np.array([0, 1, 0, 0, 1])
        output = np.compress(condition, input)
        # print(output)
        # [ 2., 5.]

        expect(
            node,
            inputs=[input, condition.astype(bool)],
            outputs=[output],
            name="test_compress_default_axis",
        )

    @staticmethod
    def export_compress_negative_axis() -> None:
        node = onnx.helper.make_node(
            "Compress",
            inputs=["input", "condition"],
            outputs=["output"],
            axis=-1,
        )
        input = np.array([[1, 2], [3, 4], [5, 6]]).astype(np.float32)
        condition = np.array([0, 1])
        output = np.compress(condition, input, axis=-1)
        # print(output)
        # [[ 2.]
        # [ 4.]
        # [ 6.]]
        expect(
            node,
            inputs=[input, condition.astype(bool)],
            outputs=[output],
            name="test_compress_negative_axis",
        )