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import os
import tempfile
import mapnik
import pytest
from .utilities import execution_path
@pytest.fixture(scope="module")
def setup():
# All of the paths used are relative, if we run the tests
# from another directory we need to chdir()
os.chdir(execution_path('.'))
yield
def test_debug_symbolizer(setup):
s = mapnik.DebugSymbolizer()
s.mode = mapnik.debug_symbolizer_mode.collision
assert s.mode == mapnik.debug_symbolizer_mode.collision
def test_raster_symbolizer():
s = mapnik.RasterSymbolizer()
s.comp_op = mapnik.CompositeOp.src_over
s.scaling = mapnik.scaling_method.NEAR
s.opacity = 1.0
s.mesh_size = 16
assert s.comp_op == mapnik.CompositeOp.src_over # note: mode is deprecated
assert s.scaling == mapnik.scaling_method.NEAR
assert s.opacity == 1.0
assert s.colorizer == None
assert s.mesh_size == 16
assert s.premultiplied == None
s.premultiplied = True
assert s.premultiplied == True
def test_line_pattern():
if not os.path.exists('../data/images/dummy.png'):
pytest.skip('Missing data')
s = mapnik.LinePatternSymbolizer()
s.file = mapnik.PathExpression('../data/images/dummy.png')
assert str(s.file) == '../data/images/dummy.png'
def test_map_init():
m = mapnik.Map(256, 256)
assert m.width == 256
assert m.height == 256
assert m.srs == 'epsg:4326'
assert m.base == ''
assert m.maximum_extent == None
assert m.background_image == None
assert m.background_image_comp_op == mapnik.CompositeOp.src_over
assert m.background_image_opacity == 1.0
m = mapnik.Map(256, 256, '+proj=latlong')
assert m.srs == '+proj=latlong'
def test_map_style_access():
m = mapnik.Map(256, 256)
sty = mapnik.Style()
m.append_style("style",sty)
styles = list(m.styles)
assert len(styles) == 1
assert styles[0][0] == 'style'
# returns a copy so let's just check it is the right instance
assert isinstance(styles[0][1],mapnik.Style)
def test_map_maximum_extent_modification():
m = mapnik.Map(256, 256)
assert m.maximum_extent == None
m.maximum_extent = mapnik.Box2d()
assert m.maximum_extent == mapnik.Box2d()
m.maximum_extent = None
assert m.maximum_extent == None
# Map initialization from string
def test_map_init_from_string():
if not os.path.exists('../../demo/data/boundaries.shp'):
pytest.skip('Missing data')
map_string = '''<Map background-color="steelblue" base="./" srs="epsg:4326">
<Style name="My Style">
<Rule>
<PolygonSymbolizer fill="#f2eff9"/>
<LineSymbolizer stroke="rgb(50%,50%,50%)" stroke-width="0.1"/>
</Rule>
</Style>
<Layer name="boundaries">
<StyleName>My Style</StyleName>
<Datasource>
<Parameter name="type">shape</Parameter>
<Parameter name="file">../../demo/data/boundaries</Parameter>
</Datasource>
</Layer>
</Map>'''
m = mapnik.Map(600, 300)
assert m.base == ''
try:
mapnik.load_map_from_string(m, map_string)
assert m.base == './'
mapnik.load_map_from_string(m, map_string, False, "") # this "" will have no effect
assert m.base == './'
tmp_dir = tempfile.gettempdir()
try:
mapnik.load_map_from_string(m, map_string, False, tmp_dir)
except RuntimeError:
pass # runtime error expected because shapefile path should be wrong and datasource will throw
assert m.base == tmp_dir # tmp_dir will be set despite the exception because load_map mostly worked
m.remove_all()
m.base = 'foo'
mapnik.load_map_from_string(m, map_string, True, ".")
assert m.base == '.'
except RuntimeError as e:
# only test datasources that we have installed
if not 'Could not create datasource' in str(e):
raise RuntimeError(e)
# # Color initialization
def test_color_init_errors():
with pytest.raises(Exception): # Boost.Python.ArgumentError
c = mapnik.Color()
def test_color_init_errors():
with pytest.raises(RuntimeError):
c = mapnik.Color('foo') # mapnik config
def test_color_init():
c = mapnik.Color('blue')
assert c.a == 255
assert c.r == 0
assert c.g == 0
assert c.b == 255
assert c.to_hex_string() == '#0000ff'
c = mapnik.Color('#f2eff9')
assert c.a == 255
assert c.r == 242
assert c.g == 239
assert c.b == 249
assert c.to_hex_string() == '#f2eff9'
c = mapnik.Color('rgb(50%,50%,50%)')
assert c.a == 255
assert c.r == 128
assert c.g == 128
assert c.b == 128
assert c.to_hex_string() == '#808080'
c = mapnik.Color(0, 64, 128)
assert c.a == 255
assert c.r == 0
assert c.g == 64
assert c.b == 128
assert c.to_hex_string() == '#004080'
c = mapnik.Color(0, 64, 128, 192)
assert c.a == 192
assert c.r == 0
assert c.g == 64
assert c.b == 128
assert c.to_hex_string() == '#004080c0'
def test_color_equality():
c1 = mapnik.Color('blue')
c2 = mapnik.Color(0,0,255)
c3 = mapnik.Color('black')
c3.r = 0
c3.g = 0
c3.b = 255
c3.a = 255
assert c1 == c2
assert c1 == c3
c1 = mapnik.Color(0, 64, 128)
c2 = mapnik.Color(0, 64, 128)
c3 = mapnik.Color(0, 0, 0)
c3.r = 0
c3.g = 64
c3.b = 128
assert c1 == c2
assert c1 == c3
c1 = mapnik.Color(0, 64, 128, 192)
c2 = mapnik.Color(0, 64, 128, 192)
c3 = mapnik.Color(0, 0, 0, 255)
c3.r = 0
c3.g = 64
c3.b = 128
c3.a = 192
assert c1 == c2
assert c1 == c3
c1 = mapnik.Color('rgb(50%,50%,50%)')
c2 = mapnik.Color(128, 128, 128, 255)
c3 = mapnik.Color('#808080')
c4 = mapnik.Color('gray')
assert c1 == c2
assert c1 == c3
assert c1 == c4
c1 = mapnik.Color('hsl(0, 100%, 50%)') # red
c2 = mapnik.Color('hsl(120, 100%, 50%)') # lime
c3 = mapnik.Color('hsla(240, 100%, 50%, 0.5)') # semi-transparent solid blue
assert c1 == mapnik.Color('red')
assert c2 == mapnik.Color('lime')
assert c3, mapnik.Color(0,0,255 == 128)
def test_rule_init():
min_scale = 5
max_scale = 10
r = mapnik.Rule()
assert r.name == ''
assert r.min_scale == 0
assert r.max_scale == float('inf')
assert r.has_else() == False
assert r.has_also() == False
r = mapnik.Rule()
r.set_else(True)
assert r.has_else() == True
assert r.has_also() == False
r = mapnik.Rule()
r.set_also(True)
assert r.has_else() == False
assert r.has_also() == True
r = mapnik.Rule("Name")
assert r.name == 'Name'
assert r.min_scale == 0
assert r.max_scale == float('inf')
assert r.has_else() == False
assert r.has_also() == False
r = mapnik.Rule("Name")
assert r.name == 'Name'
assert r.min_scale == 0
assert r.max_scale == float('inf')
assert r.has_else() == False
assert r.has_also() == False
r = mapnik.Rule("Name", min_scale)
assert r.name == 'Name'
assert r.min_scale == min_scale
assert r.max_scale == float('inf')
assert r.has_else() == False
assert r.has_also() == False
r = mapnik.Rule("Name", min_scale, max_scale)
assert r.name == 'Name'
assert r.min_scale == min_scale
assert r.max_scale == max_scale
assert r.has_else() == False
assert r.has_also() == False
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