# 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 Squeeze(Base):
    @staticmethod
    def export_squeeze() -> None:
        node = onnx.helper.make_node(
            "Squeeze",
            inputs=["x", "axes"],
            outputs=["y"],
        )
        x = np.random.randn(1, 3, 4, 5).astype(np.float32)
        axes = np.array([0], dtype=np.int64)
        y = np.squeeze(x, axis=0)

        expect(node, inputs=[x, axes], outputs=[y], name="test_squeeze")

    @staticmethod
    def export_squeeze_negative_axes() -> None:
        node = onnx.helper.make_node(
            "Squeeze",
            inputs=["x", "axes"],
            outputs=["y"],
        )
        x = np.random.randn(1, 3, 1, 5).astype(np.float32)
        axes = np.array([-2], dtype=np.int64)
        y = np.squeeze(x, axis=-2)
        expect(node, inputs=[x, axes], outputs=[y], name="test_squeeze_negative_axes")