# Copyright (c) 2019 Manfred Moitzi
# License: MIT License
import pytest
import ezdxf

LAYER = 'test'


@pytest.fixture
def dxf():
    doc = ezdxf.new('R2000')
    doc.layers.new(LAYER)
    msp = doc.modelspace()
    msp.add_text('A', dxfattribs={'layer': LAYER})
    blk = doc.blocks.new('TEST')
    blk.add_text('A', dxfattribs={'layer': LAYER})
    return doc


def test_rename_layer(dxf):
    NEW_LAYER = 'XYZ'
    layer = dxf.layers.get(LAYER)
    layer.rename(NEW_LAYER)

    assert dxf.layers.has_entry(NEW_LAYER)

    msp = dxf.modelspace()
    assert msp[0].dxf.layer == NEW_LAYER

    blk = dxf.blocks.get('TEST')
    assert blk[0].dxf.layer == NEW_LAYER


def test_rename_layer_errors(dxf):
    layer = dxf.layers.get(LAYER)
    pytest.raises(ValueError, layer.rename, '*XXX')
    pytest.raises(ValueError, layer.rename, LAYER)

    layer = dxf.layers.get('0')
    pytest.raises(ValueError, layer.rename, LAYER)

    layer = dxf.layers.get('DEFPOINTS')
    pytest.raises(ValueError, layer.rename, LAYER)

