def METHOD_NAME():
    # tests that the alpha of a RGB array passed to imshow is set to 0
    # instead of masked
    z = np.full((100, 100, 3), 0.5)
    plt_crs = ccrs.LambertAzimuthalEqualArea()
    latlon_crs = ccrs.PlateCarree()
    ax = plt.axes(projection=plt_crs)
    ax.set_extent([-30, -20, 60, 70], crs=latlon_crs)
    img = ax.imshow(z, extent=[-26, -24, 64, 66], transform=latlon_crs)
    assert sum(img.get_array().data[:, 0, 3]) == 0