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# coding=utf-8
"""
Test Inkex style parsing functionality.
"""
import pytest
from inkex.styles import Style
from inkex.colors import Color
from inkex.tester import TestCase
from inkex.tester.svg import svg_file
class StyleTest(TestCase):
"""Test path API and calculations"""
def test_new_style(self):
"""Create a style from a path string"""
stl = Style("border-color: blue; border-width: 4px;")
self.assertEqual(str(stl), 'border-color:blue;border-width:4px')
def test_composite(self):
"""Test chaining styles together"""
stl = Style("border-color: blue;")
stl += "border-color: red; border-issues: true;"
self.assertEqual(str(stl), 'border-color:red;border-issues:true')
st2 = stl + "border-issues: false;"
self.assertEqual(str(st2), 'border-color:red;border-issues:false')
def test_inbuilts(self):
"""Test inbuild style functions"""
stadd = Style("a: 1") + Style("b: 2")
self.assertTrue(stadd == Style("b: 2; a: 1"))
self.assertFalse(stadd == Style("b: 2"))
self.assertFalse(stadd != Style("b: 2; a: 1"))
self.assertEqual(stadd - "a: 4", "b: 2")
stadd -= "b: 3; c: 4"
self.assertEqual(stadd, Style("a: 1"))
def test_set_property(self):
"""Set the style attribute directly"""
stl = Style()
stl['border-pain'] = 'green'
self.assertEqual(str(stl), 'border-pain:green')
def test_color_property(self):
"""Color special handling"""
stl = Style("fill-opacity:0.7;fill:red;")
self.assertEqual(stl.get_color('fill').alpha, 0.7)
self.assertEqual(str(stl.get_color('fill')), 'rgba(255, 0, 0, 0.7)')
stl.set_color('rgba(0, 127, 0, 0.5)', 'stroke')
self.assertEqual(str(stl), 'fill-opacity:0.7;fill:red;stroke-opacity:0.5;stroke:#007f00')
def test_interpolate(self):
"""Test interpolation method."""
stl1 = Style({'stroke-width':'0px', 'fill-opacity':1.0,'fill':Color((200, 0, 0))})
stl2 = Style({'stroke-width':'1pc', 'fill-opacity':0.0,'fill':Color((100, 0, 100))})
stl3 = stl1.interpolate(stl2, 0.5)
assert stl3['fill-opacity'] == pytest.approx(0.5, 1e-3)
assert stl3['fill'] == [150, 0, 50]
assert stl3['stroke-width'] == '8px'
class AttribFallbackTest(TestCase):
"""Test the fallback style for handling attribute based styles"""
def setUp(self):
self.svg = svg_file(self.data_file('svg', 'css.svg'))
self.elem = self.svg.getElementById('rect2')
def test_fallback_read_style(self):
"""Style comes from style property"""
self.elem.style['fill'] = 'green'
self.elem.set('fill', 'red')
self.assertEqual(self.elem.fallback_style()['fill'], 'green')
def test_fallback_read_attrib(self):
"""Style comes from attribute"""
self.elem.style.pop('stroke', None)
self.assertEqual(self.elem.fallback_style()['stroke'], None)
self.elem.set('stroke', 'green')
self.assertEqual(self.elem.fallback_style()['stroke'], 'green')
def test_fallback_read_css(self):
"""Style from basic css will work"""
elem = self.svg.getElementById('rect1')
self.assertEqual(elem.fallback_style()['fill'], 'blue')
def test_fallback_write_style(self):
"""Styles are set back correctly"""
self.elem.style['fill'] = 'green'
self.elem.set('fill', 'red')
self.elem.fallback_style()['fill'] = 'blue'
self.assertEqual(self.elem.style['fill'], 'blue')
self.assertEqual(self.elem.get('fill'), None) # Removed
def test_fallback_write_attrib(self):
"""Attrib is written back when needed"""
self.elem.style.pop('stroke', None)
self.elem.set('stroke', 'green')
self.elem.fallback_style()['stroke'] = 'blue'
self.assertEqual(self.elem.style.get('stroke', None), None) # Still empty
self.assertEqual(self.elem.get('stroke'), 'blue')
def test_fallback_write_move(self):
"""Style is moved when required"""
self.elem.style.pop('stroke', None)
self.elem.set('stroke', 'green')
self.elem.fallback_style(move=True)['stroke'] = 'blue'
self.assertEqual(self.elem.style['stroke'], 'blue')
self.assertEqual(self.elem.get('stroke'), None) # Moved
def test_fallback_write_css(self):
"""Style can be set into the stylesheet style"""
elem = self.svg.getElementById('rect1')
elem.fallback_style()['fill'] = 'green'
self.assertIn('#rect1 {\n fill:green;\n}', self.svg.getElementById('style1').text)
elem.fallback_style()['fill'] = 'red'
self.assertIn('#rect1 {\n fill:red;\n}', self.svg.getElementById('style1').text)
def test_no_attr(self):
"""Given name doesn't exist anywhere"""
self.elem.style = 'fill:red'
style = self.elem.fallback_style()
self.assertEqual(style.get('fill'), 'red')
self.assertEqual(style.get('jump'), None)
class StyleSheetTest(TestCase):
"""Test parsing style sheets"""
def setUp(self):
super(StyleSheetTest, self).setUp()
self.svg = svg_file(self.data_file('svg', 'css.svg'))
self.css = self.svg.stylesheet
def test_classes(self):
"""Test element class manipulation"""
rect = self.svg.getElementById('rect2')
self.assertEqual(rect.get('class'), 'two')
self.assertEqual(rect.classes, ['two'])
rect.classes[0] = 'twa'
self.assertEqual(rect.get('class'), 'twa')
rect.classes.append('tri')
rect.classes.append('four')
self.assertEqual(rect.get('class'), 'twa tri four')
rect.classes.remove('twa')
self.assertEqual(rect.get('class'), 'tri four')
rect.classes.toggle('toggle')
self.assertEqual(rect.get('class'), 'tri four toggle')
rect.classes.toggle('toggle')
self.assertEqual(rect.get('class'), 'tri four')
def test_creation(self):
"""Stylesheet is created when needed"""
self.svg = svg_file(self.data_file('svg', 'empty.svg'))
self.assertEqual(len(self.svg.stylesheets), 0)
self.assertEqual(len(self.svg.stylesheet), 0)
self.assertEqual(len(self.svg.stylesheets), 1)
self.svg.stylesheet.append('.cls1 { fill: blue; }')
self.assertIn(b'style><![CDATA[\n.cls1 {\n fill:blue;\n}\n]]><', self.svg.tostring())
def test_parsing(self):
"""SVG parsing provides access to stylesheets"""
sheets = self.svg.stylesheets
self.assertEqual(len(sheets), 3)
self.assertEqual(len(sheets[0]), 7)
self.assertEqual(len(sheets[1]), 0)
self.assertEqual(len(sheets[2]), 2)
def test_string(self):
"""Rendered to a string"""
sheets = self.svg.stylesheets
self.assertEqual(str(sheets[0][0]), '#layer1 {\n stroke:yellow;\n}')
self.assertEqual(str(sheets[2][1]), '.rule {}')
def test_lookup_by_id(self):
"""ID CSS lookup"""
self.assertEqual(self.css[0].to_xpath(), "//*[@id='layer1']")
elem = self.svg.getElement(self.css[0].to_xpath())
self.assertEqual(elem.get('id'), 'layer1')
def test_lookup_by_element(self):
"""Element name CSS lookup"""
self.assertEqual(self.css[1].to_xpath(), "//svg:circle")
elems = list(self.svg.xpath(self.css[1].to_xpath()))
self.assertEqual(len(elems), 2)
self.assertEqual(elems[0].get('id'), 'circle1')
self.assertEqual(elems[1].get('id'), 'circle2')
def test_lookup_by_class(self):
"""Class name CSS lookup"""
self.assertEqual(self.css[2].to_xpath(),\
"//*[contains(concat(' ', normalize-space(@class), ' '), ' two ')]")
elem = self.svg.getElement(self.css[2].to_xpath())
self.assertEqual(elem.get('id'), 'rect2')
def test_lookup_and(self):
"""Multiple CSS lookups"""
self.assertEqual(self.css[3].to_xpath(), "//*[@id='rect3']"\
"[contains(concat(' ', normalize-space(@class), ' '), ' three ')]")
elem = self.svg.getElement(self.css[3].to_xpath())
self.assertEqual(elem.get('id'), 'rect3')
def test_lookup_or(self):
"""SVG rules can look up the right elements"""
self.assertEqual(self.css[6].to_xpath(), "//*[@id='circle1']|//*[@id='circle2']|"\
"//*[contains(concat(' ', normalize-space(@class), ' '), ' two ')]")
elems = self.svg.xpath(self.css[6].to_xpath())
self.assertEqual(len(elems), 3)
self.assertEqual(elems[0].get('id'), 'rect2')
self.assertEqual(elems[1].get('id'), 'circle1')
self.assertEqual(elems[2].get('id'), 'circle2')
def test_applied_styles(self):
"""Are styles applied to the svg elements correctly"""
self.assertEqual(
str(self.svg.getElementById('rect1').cascaded_style()),
'fill:blue')
self.assertEqual(
str(self.svg.getElementById('rect2').cascaded_style()),
'fill:green;font:Homie')
self.assertEqual(
str(self.svg.getElementById('rect3').cascaded_style()),
'fill:cyan')
self.assertEqual(
str(self.svg.getElementById('rect4').cascaded_style()),
'fill:grey;stroke:red')
self.assertEqual(
str(self.svg.getElementById('circle1').cascaded_style()),
'fill:red;font:Homie')
self.assertEqual(
str(self.svg.getElementById('circle2').cascaded_style()),
'fill:red;font:Homie')
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