def draw_map_wms(name, save=0):
#print "making map in thread %s" % (name)
mo = mapscript.mapObj(TESTMAPFILE)
# WFS layer
lo = mapscript.layerObj()
lo.name = 'jpl_wms'
lo.setProjection('+init=epsg:4326')
lo.connectiontype = mapscript.MS_WMS
# lo.connection = 'http://wms.jpl.nasa.gov/wms.cgi?'
lo.connection = 'http://labs.metacarta.com/wms/vmap0?'
lo.metadata.set('wms_service', 'WMS')
lo.metadata.set('wms_server_version', '1.1.1')
lo.metadata.set('wms_name', 'basic')
lo.metadata.set('wms_style', 'visual')
lo.metadata.set('wms_format', 'image/jpeg')
lo.type = mapscript.MS_LAYER_RASTER
lo.status = mapscript.MS_DEFAULT
lo.debug = mapscript.MS_ON
mo.insertLayer(lo)
if not mo.web.imagepath:
mo.web.imagepath = os.environ.get('TEMP', None) or INCOMING
mo.debug = mapscript.MS_ON
mo.selectOutputFormat('image/jpeg')
im = mo.draw()
if save:
im.save('threadtest_wms_%s.jpg' % (name))
def testConstructorWithArg(self):
l = mapscript.layerObj()
l.name = 'foo'
c = mapscript.classObj(l)
assert c.thisown == 1
assert c.layer.name == l.name
assert c.numstyles == 0
def testLayerObj(self):
self.initMap()
layer = mapscript.layerObj(self.map)
self.map=None
assert str(layer.p_map).find('mapscript.mapObj') != -1
gc.collect()
assert layer.map != None, layer.map
def testConstructorWithArg(self):
l = mapscript.layerObj()
l.name = 'foo'
c = mapscript.classObj(l)
assert c.thisown == 1
assert c.layer.name == l.name
assert c.numstyles == 0
def draw_map_wms(name, save=0):
#print "making map in thread %s" % (name)
mo = mapscript.mapObj(TESTMAPFILE)
# WFS layer
lo = mapscript.layerObj()
lo.name = 'jpl_wms'
lo.setProjection('+init=epsg:4326')
lo.connectiontype = mapscript.MS_WMS
# lo.connection = 'http://wms.jpl.nasa.gov/wms.cgi?'
lo.connection = 'http://labs.metacarta.com/wms/vmap0?'
lo.metadata.set('wms_service', 'WMS')
lo.metadata.set('wms_server_version', '1.1.1')
lo.metadata.set('wms_name', 'basic')
lo.metadata.set('wms_style', 'visual')
lo.metadata.set('wms_format', 'image/jpeg')
lo.type = mapscript.MS_LAYER_RASTER
lo.status = mapscript.MS_DEFAULT
lo.debug = mapscript.MS_ON
mo.insertLayer(lo)
if not mo.web.imagepath:
mo.web.imagepath = os.environ.get('TEMP', None) or INCOMING
mo.debug = mapscript.MS_ON
mo.selectOutputFormat('image/jpeg')
im = mo.draw()
if save:
im.save('threadtest_wms_%s.jpg' % (name))
def testLayerObj(self):
self.initMap()
layer = mapscript.layerObj(self.map)
self.map = None
assert str(layer.p_map).find('mapscript.mapObj') != -1
gc.collect()
assert layer.map != None, layer.map
def setUp(self):
# Inline feature layer
self.ilayer = mapscript.layerObj()
self.ilayer.type = mapscript.MS_LAYER_POLYGON
self.ilayer.status = mapscript.MS_DEFAULT
self.ilayer.connectiontype = mapscript.MS_INLINE
cs = 'f7fcfd,e5f5f9,ccece6,99d8c9,66c2a4,41ae76,238b45,006d2c,00441b'
colors = ['#' + h for h in cs.split(',')]
#print colors
for i in range(9):
# Make a class for feature
ci = self.ilayer.insertClass(mapscript.classObj())
co = self.ilayer.getClass(ci)
si = co.insertStyle(mapscript.styleObj())
so = co.getStyle(si)
so.color.setHex(colors[i])
co.label.color.setHex('#000000')
co.label.outlinecolor.setHex('#FFFFFF')
co.label.type = mapscript.MS_BITMAP
co.label.size = mapscript.MS_SMALL
# The shape to add is randomly generated
xc = 4.0 * (random() - 0.5)
yc = 4.0 * (random() - 0.5)
r = mapscript.rectObj(xc - 0.25, yc - 0.25, xc + 0.25, yc + 0.25)
s = r.toPolygon()
# Classify
s.classindex = i
s.text = "F%d" % (i)
# Add to inline feature layer
self.ilayer.addFeature(s)
def setUp(self):
# Inline feature layer
self.ilayer = mapscript.layerObj()
self.ilayer.type = mapscript.MS_LAYER_POLYGON
self.ilayer.status = mapscript.MS_DEFAULT
self.ilayer.connectiontype = mapscript.MS_INLINE
cs = 'f7fcfd,e5f5f9,ccece6,99d8c9,66c2a4,41ae76,238b45,006d2c,00441b'
colors = ['#' + h for h in cs.split(',')]
#print colors
for i in range(9):
# Make a class for feature
ci = self.ilayer.insertClass(mapscript.classObj())
co = self.ilayer.getClass(ci)
si = co.insertStyle(mapscript.styleObj())
so = co.getStyle(si)
so.color.setHex(colors[i])
co.label.color.setHex('#000000')
co.label.outlinecolor.setHex('#FFFFFF')
co.label.type = mapscript.MS_BITMAP
co.label.size = mapscript.MS_SMALL
# The shape to add is randomly generated
xc = 4.0*(random() - 0.5)
yc = 4.0*(random() - 0.5)
r = mapscript.rectObj(xc-0.25, yc-0.25, xc+0.25, yc+0.25)
s = r.toPolygon()
# Classify
s.classindex = i
s.text = "F%d" % (i)
# Add to inline feature layer
self.ilayer.addFeature(s)
def testDrawMapWithSecondPolygon(self):
"""draw a blue polygon and a red polygon"""
p = self.map.getLayerByName("POLYGON")
ip = mapscript.layerObj(self.map)
ip.type = mapscript.MS_LAYER_POLYGON
ip.status = mapscript.MS_DEFAULT
c0 = mapscript.classObj(ip)
# turn off first polygon layer's color
p.getClass(0).getStyle(0).color.setRGB(-1, -1, -1)
# copy this style to inline polygon layer, then change outlinecolor
c0.insertStyle(p.getClass(0).getStyle(0))
st0 = c0.getStyle(0)
st0.outlinecolor.setRGB(255, 0, 0)
# pull out the first feature from polygon layer, shift it
# and use this as an inline feature in new layer
p.open()
s0 = p.getFeature(0)
p.close()
r0 = s0.bounds
r1 = mapscript.rectObj(r0.minx - 0.1, r0.miny - 0.1, r0.maxx - 0.1, r0.maxy - 0.1)
s1 = r1.toPolygon()
ip.addFeature(s1)
img = self.map.draw()
img.save("test_drawmapw2ndpolygon.png")
def xtestDrawMapWithSecondPolygon(self):
"""draw a blue polygon and a red polygon"""
p = self.map.getLayerByName('POLYGON')
ip = mapscript.layerObj(self.map)
ip.type = mapscript.MS_LAYER_POLYGON
ip.status = mapscript.MS_DEFAULT
c0 = mapscript.classObj(ip)
# turn off first polygon layer's color
p.getClass(0).getStyle(0).color.setRGB(-1,-1,-1)
# copy this style to inline polygon layer, then change outlinecolor
c0.insertStyle(p.getClass(0).getStyle(0))
st0 = c0.getStyle(0)
st0.outlinecolor.setRGB(255, 0, 0)
# pull out the first feature from polygon layer, shift it
# and use this as an inline feature in new layer
p.open()
s0 = p.getFeature(0)
p.close()
r0 = s0.bounds
r1 = mapscript.rectObj(r0.minx-0.1, r0.miny-0.1, r0.maxx-0.1, r0.maxy-0.1)
s1 = r1.toPolygon()
ip.addFeature(s1)
img = self.map.draw()
img.save('test_drawmapw2ndpolygon.png')
def testLayerConstructorNoArg(self):
"""test layer constructor with no argument"""
layer = mapscript.layerObj()
t = type(layer)
assert str(t) == "<class 'mapscript.layerObj'>", t
assert layer.thisown == 1
assert layer.index == -1
assert layer.map == None, layer.map
def testLayerConstructorMapArg(self):
"""test layer constructor with map argument"""
layer = mapscript.layerObj(self.map)
t = type(layer)
assert str(t) == "<class 'mapscript.layerObj'>", t
assert layer.thisown == 1
assert str(layer) == str(self.map.getLayer(self.map.numlayers-1))
assert layer.map != None, layer.map
def testLayerConstructorNoArg(self):
"""test layer constructor with no argument"""
layer = mapscript.layerObj()
t = type(layer)
assert str(t) == "<class 'mapscript.layerObj'>", t
assert layer.thisown == 1
assert layer.index == -1
assert layer.map == None, layer.map
def testLayerConstructorMapArg(self):
"""test layer constructor with map argument"""
layer = mapscript.layerObj(self.map)
t = type(layer)
assert str(t) == "<class 'mapscript.layerObj'>", t
assert layer.thisown == 1
assert str(layer) == str(self.map.getLayer(self.map.numlayers - 1))
assert layer.map != None, layer.map
def testLayerConstructorMapArg(self):
"""test layer constructor with map argument"""
layer = mapscript.layerObj(self.map)
t = type(layer)
assert str(t) == "<class 'mapscript.layerObj'>", t
assert layer.thisown == 1
l = self.map.getLayer(self.map.numlayers - 1)
# assert str(layer) == str(l) # TODO - check why these are not equal
assert layer.map != None, layer.map
def testClassObj(self):
self.initMap()
layer = mapscript.layerObj(self.map)
clazz = mapscript.classObj(layer)
self.map = None
layer = None
assert str(clazz.p_layer).find('mapscript.layerObj') != -1
gc.collect()
assert clazz.layer != None, clazz.layer
def testClassObj(self):
self.initMap()
layer = mapscript.layerObj(self.map)
clazz = mapscript.classObj(layer)
self.map=None
layer=None
assert str(clazz.p_layer).find('mapscript.layerObj') != -1
gc.collect()
assert clazz.layer != None, clazz.layer
def setUp(self):
self.mo = mapscript.mapObj()
lo = mapscript.layerObj()
lo.name = 'pg_sub_layer'
lo.type = mapscript.MS_LAYER_POLYGON
lo.connectiontype = mapscript.MS_POSTGIS
lo.connection = PG_CONNECTION_STRING
lo.data = "the_geom from (select * from polygon) as foo using unique gid using srid=4326"
li = self.mo.insertLayer(lo)
self.lo = self.mo.getLayer(li)
def testLayerClone(self):
"""Clone a layer"""
layer = mapscript.layerObj()
layer.name = "sample"
copy = layer.clone()
assert layer.refcount == 1, layer.refcount
assert copy.refcount == 1, copy.refcount
assert layer.name == copy.name
assert copy.map == None
def setUp(self):
self.mo = mapscript.mapObj()
lo = mapscript.layerObj()
lo.name = 'pg_sub_layer'
lo.type = mapscript.MS_LAYER_POLYGON
lo.connectiontype = mapscript.MS_POSTGIS
lo.connection = PG_CONNECTION_STRING
lo.data = "the_geom from (select * from polygon) as foo using unique gid using srid=4326"
li = self.mo.insertLayer(lo)
self.lo = self.mo.getLayer(li)
def setUp(self):
self.mo = mapscript.mapObj()
lo = mapscript.layerObj()
lo.name = 'pg_layer'
lo.type = mapscript.MS_LAYER_POLYGON
lo.connectiontype = mapscript.MS_POSTGIS
lo.connection = PG_CONNECTION_STRING
lo.data = "the_geom from polygon"
li = self.mo.insertLayer(lo)
self.lo = self.mo.getLayer(li)
def setUp(self):
self.mo = mapscript.mapObj()
lo = mapscript.layerObj()
lo.name = 'pg_layer'
lo.type = mapscript.MS_LAYER_POLYGON
lo.connectiontype = mapscript.MS_POSTGIS
lo.connection = PG_CONNECTION_STRING
lo.data = "the_geom from polygon"
li = self.mo.insertLayer(lo)
self.lo = self.mo.getLayer(li)
def testLayerClone(self):
"""Clone a layer"""
layer = mapscript.layerObj()
layer.name = 'sample'
copy = layer.clone()
assert layer.refcount == 1, layer.refcount
assert copy.refcount == 1, copy.refcount
assert layer.name == copy.name
assert copy.map == None
def testMapInsertLayerDrawingOrder(self):
"""MapLayersTestCase.testMapInsertLayerDrawingOrder: test affect of insertion of a new layer at index 1 on drawing order"""
n = self.map.numlayers
# reverse layer drawing order
o_start = (6, 5, 4, 3, 2, 1, 0)
self.map.setLayerOrder(o_start)
# insert Layer
layer = mapscript.layerObj()
layer.name = 'new'
index = self.map.insertLayer(layer, 1)
assert index == 1, index
# We expect our new layer to be at index 1 in drawing order as well
order = self.map.getLayerOrder()
assert order == (7, 1, 6, 5, 4, 3, 2, 0), order
def testMapInsertLayer(self):
"""MapLayersTestCase.testMapInsertLayer: test insertion of a new layer at default (last) index"""
n = self.map.numlayers
layer = mapscript.layerObj()
layer.name = 'new'
assert layer.map == None, layer.map
index = self.map.insertLayer(layer)
assert layer.map != None, layer.map
assert index == n, index
assert self.map.numlayers == n + 1
names = [self.map.getLayer(i).name for i in range(self.map.numlayers)]
assert names == ['RASTER', 'POLYGON', 'LINE', 'POINT', 'INLINE',
'INLINE-PIXMAP-RGBA', 'INLINE-PIXMAP-PCT', 'new']
order = self.map.getLayerOrder()
assert order == (0, 1, 2, 3, 4, 5, 6, 7), order
def testSettingFonts(self):
mo = mapscript.mapObj()
assert mo.fontset.numfonts == 0
mo.fontset.fonts.set('Vera',
os.path.join(TESTS_PATH, 'vera', 'Vera.ttf'))
# NB: this does *not* increment the fonset.numfonts -- new bug
mo.setSize(300, 300)
mo.setExtent(-1.0, -1.0, 1.0, 1.0)
lo = mapscript.layerObj()
lo.type = mapscript.MS_LAYER_POINT
lo.connectiontype = mapscript.MS_INLINE
lo.status = mapscript.MS_DEFAULT
co = mapscript.classObj()
lbl = mapscript.labelObj()
lbl.type = mapscript.MS_TRUETYPE
lbl.font = 'Vera'
lbl.size = 10
lbl.color.setHex('#000000')
co.addLabel(lbl)
so = mapscript.styleObj()
so.symbol = 0
so.color.setHex('#000000')
co.insertStyle(so)
lo.insertClass(co)
li = mo.insertLayer(lo)
lo = mo.getLayer(li)
point = mapscript.pointObj(0, 0)
line = mapscript.lineObj()
line.add(point)
shape = mapscript.shapeObj(lo.type)
shape.add(line)
shape.setBounds()
shape.text = 'Foo'
shape.classindex = 0
lo.addFeature(shape)
im = mo.draw()
#im = mo.prepareImage()
#shape.draw(mo, lo, im)
im.save('testSettingFonts.png')
def testSettingFonts(self):
mo = mapscript.mapObj()
assert mo.fontset.numfonts == 0
mo.fontset.fonts.set('Vera', os.path.join(TESTS_PATH, 'vera',
'Vera.ttf'))
# NB: this does *not* increment the fonset.numfonts -- new bug
mo.setSize(300, 300)
mo.setExtent(-1.0, -1.0, 1.0, 1.0)
lo = mapscript.layerObj()
lo.type = mapscript.MS_LAYER_POINT
lo.connectiontype = mapscript.MS_INLINE
lo.status = mapscript.MS_DEFAULT
co = mapscript.classObj()
lbl =mapscript.labelObj()
lbl.type = mapscript.MS_TRUETYPE
lbl.font = 'Vera'
lbl.size = 10
lbl.color.setHex('#000000')
co.addLabel(lbl)
so = mapscript.styleObj()
so.symbol = 0
so.color.setHex('#000000')
co.insertStyle(so)
lo.insertClass(co)
li = mo.insertLayer(lo)
lo = mo.getLayer(li)
point = mapscript.pointObj(0,0)
line = mapscript.lineObj()
line.add(point)
shape = mapscript.shapeObj(lo.type)
shape.add(line)
shape.setBounds()
shape.text = 'Foo'
shape.classindex = 0
lo.addFeature(shape)
im = mo.draw()
#im = mo.prepareImage()
#shape.draw(mo, lo, im)
im.save('testSettingFonts.png')
def testMapInsertedLayer(self):
"""MapLayersTestCase.testMapInsertedLayer: test insertion of a new layer at default (last) index"""
self.initMap()
n = self.map.numlayers
layer = mapscript.layerObj()
layer.name = 'new'
assert layer.refcount == 1
assert layer.thisown == 1
index = self.map.insertLayer(layer)
assert index == n, index
assert self.map.numlayers == n + 1
assert layer.refcount == 2
assert layer.thisown == 1
assert self.map.getLayer(index).refcount == 3
assert self.map.getLayer(index).thisown == 1
assert layer.refcount == 2
assert layer.thisown == 1
def testMapInsertedLayerWithIndex(self):
"""MapLayersTestCase.testMapInsertedLayerWithIndex: test insertion of a new layer at index 0"""
self.initMap()
n = self.map.numlayers
layer = mapscript.layerObj()
layer.name = 'new'
assert layer.refcount == 1
assert layer.thisown == 1
index = self.map.insertLayer(layer, 0)
assert index == 0, index
assert self.map.numlayers == n + 1
assert layer.refcount == 2
assert layer.thisown == 1
assert self.map.getLayer(index).refcount == 3
assert self.map.getLayer(index).thisown == 1
assert layer.refcount == 2
assert layer.thisown == 1
def testMapInsertedLayerWithIndex(self):
"""MapLayersTestCase.testMapInsertedLayerWithIndex: test insertion of a new layer at index 0"""
self.initMap()
n = self.map.numlayers
layer = mapscript.layerObj()
layer.name = "new"
assert layer.refcount == 1
assert layer.thisown == 1
index = self.map.insertLayer(layer, 0)
assert index == 0, index
assert self.map.numlayers == n + 1
assert layer.refcount == 2
assert layer.thisown == 1
assert self.map.getLayer(index).refcount == 3
assert self.map.getLayer(index).thisown == 1
assert layer.refcount == 2
assert layer.thisown == 1
def draw_map_wfs(name, save=0):
#print "making map in thread %s" % (name)
mo = mapscript.mapObj(TESTMAPFILE)
# WFS layer
lo = mapscript.layerObj()
lo.name = 'cheapo_wfs'
lo.setProjection('+init=epsg:4326')
lo.connectiontype = mapscript.MS_WFS
lo.connection = 'http://zcologia.com:9001/mapserver/members/features.rpy?'
lo.metadata.set('wfs_service', 'WFS')
lo.metadata.set('wfs_typename', 'users')
lo.metadata.set('wfs_version', '1.0.0')
lo.type = mapscript.MS_LAYER_POINT
lo.status = mapscript.MS_DEFAULT
lo.labelitem = 'zco:mid'
so1 = mapscript.styleObj()
so1.color.setHex('#FFFFFF')
so1.size = 9
so1.symbol = 1 #mo.symbolset.index('circle')
so2 = mapscript.styleObj()
so2.color.setHex('#333333')
so2.size = 7
so2.symbol = 1 #mo.symbolset.index('circle')
co = mapscript.classObj()
co.label.type = mapscript.MS_BITMAP
co.label.size = mapscript.MS_SMALL
co.label.color.setHex('#000000')
co.label.outlinecolor.setHex('#FFFFFF')
co.label.position = mapscript.MS_AUTO
co.insertStyle(so1)
co.insertStyle(so2)
lo.insertClass(co)
mo.insertLayer(lo)
if not mo.web.imagepath:
mo.web.imagepath = os.environ.get('TEMP', None) or INCOMING
mo.debug = mapscript.MS_ON
im = mo.draw()
if save:
im.save('threadtest_wfs_%s.png' % (name))
def draw_map_wfs(name, save=0):
#print "making map in thread %s" % (name)
mo = mapscript.mapObj(TESTMAPFILE)
# WFS layer
lo = mapscript.layerObj()
lo.name = 'cheapo_wfs'
lo.setProjection('+init=epsg:4326')
lo.connectiontype = mapscript.MS_WFS
lo.connection = 'http://zcologia.com:9001/mapserver/members/features.rpy?'
lo.metadata.set('wfs_service', 'WFS')
lo.metadata.set('wfs_typename', 'users')
lo.metadata.set('wfs_version', '1.0.0')
lo.type = mapscript.MS_LAYER_POINT
lo.status = mapscript.MS_DEFAULT
lo.labelitem = 'zco:mid'
so1 = mapscript.styleObj()
so1.color.setHex('#FFFFFF')
so1.size = 9
so1.symbol = 1 #mo.symbolset.index('circle')
so2 = mapscript.styleObj()
so2.color.setHex('#333333')
so2.size = 7
so2.symbol = 1 #mo.symbolset.index('circle')
co = mapscript.classObj()
co.label.type = mapscript.MS_BITMAP
co.label.size = mapscript.MS_SMALL
co.label.color.setHex('#000000')
co.label.outlinecolor.setHex('#FFFFFF')
co.label.position = mapscript.MS_AUTO
co.insertStyle(so1)
co.insertStyle(so2)
lo.insertClass(co)
mo.insertLayer(lo)
if not mo.web.imagepath:
mo.web.imagepath = os.environ.get('TEMP', None) or INCOMING
mo.debug = mapscript.MS_ON
im = mo.draw()
if save:
im.save('threadtest_wfs_%s.png' % (name))
def testBehaveWhenParentIsNull(self):
"""behave when parent (map) is null"""
self.initMap()
layer = mapscript.layerObj()
layer.name = "new"
index = self.map.insertLayer(layer, 0)
assert index == 0, index
self.map = None
assert layer.map != None, layer.map
exception = None
try:
layer.open()
except:
# must fail because the new layer is missing information
assert True
exception = True
if not exception:
fail
def testBehaveWhenParentIsNull(self):
"""behave when parent (map) is null"""
self.initMap()
layer = mapscript.layerObj()
layer.name = 'new'
index = self.map.insertLayer(layer, 0)
assert index == 0, index
self.map = None
assert layer.map != None, layer.map
exception = None
try:
layer.open()
except:
# must fail because the new layer is missing information
assert True
exception = True
if not exception:
fail
def testLayerConstructorOwnership(self):
"""LayerTestCase.testLayerConstructorOwnership: newly constructed layer has proper ownership"""
layer = mapscript.layerObj(self.map)
assert layer.thisown == 1
# Get Number of shapes from the command line
try:
opts, args = getopt.getopt(sys.argv[1:], 'n:')
except getopt.GetoptError:
sys.exit(2)
numshapes = 100 # default to 100
for o, a in opts:
if o == '-n':
numshapes = int(a)
# The shapefileObj
shpfile = mapscript.shapefileObj('timing.shp', mapscript.MS_SHAPEFILE_POLYGON)
# Inline feature layer
ilayer = mapscript.layerObj()
ilayer.type = mapscript.MS_LAYER_POLYGON
ilayer.setProjection('init=epsg:4326')
ilayer.status = mapscript.MS_DEFAULT
ilayer.connectiontype = mapscript.MS_INLINE
print numshapes, "shapes"
i = 0
while i < numshapes:
# The shape to add is randomly generated
xc = 4.0*(random() - 0.5)
yc = 4.0*(random() - 0.5)
r = mapscript.rectObj(xc-0.25, yc-0.25, xc+0.25, yc+0.25)
s = r.toPolygon()
def testMapInsertLayerBadIndex(self):
"""MapLayersTestCase.testMapInsertLayerBadIndex: expect an exception when index is too large"""
layer = mapscript.layerObj()
self.assertRaises(mapscript.MapServerChildError, self.map.insertLayer,
layer, 1000)
def testLayerConstructorOwnership(self):
"""LayerTestCase.testLayerConstructorOwnership: newly constructed layer has proper ownership"""
layer = mapscript.layerObj(self.map)
assert layer.thisown == 1
def testBehaveWhenParentIsNotNull(self):
"""behave when parent (map) is not null"""
self.initMap()
layer = mapscript.layerObj(self.map)
layer.name = 'new'
assert layer.refcount == 2, layer.refcount
def testBehaveWhenParentIsNotNull(self):
"""behave when parent (map) is not null"""
self.initMap()
layer = mapscript.layerObj(self.map)
layer.name = "new"
assert layer.refcount == 2, layer.refcount