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test_qgsmapboxglconverter.py
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test_qgsmapboxglconverter.py
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# -*- coding: utf-8 -*-
"""QGIS Unit tests for QgsMapBoxGlStyleConverter.
.. note:: This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
"""
__author__ = '(C) 2020 by Nyall Dawson'
__date__ = '29/07/2020'
__copyright__ = 'Copyright 2020, The QGIS Project'
import qgis # NOQA
from qgis.PyQt.QtGui import (QColor)
from qgis.core import (QgsMapBoxGlStyleConverter,
QgsMapBoxGlStyleConversionContext
)
from qgis.testing import start_app, unittest
from utilities import unitTestDataPath
start_app()
TEST_DATA_DIR = unitTestDataPath()
class TestQgsMapBoxGlStyleConverter(unittest.TestCase):
maxDiff = 100000
def testNoLayer(self):
c = QgsMapBoxGlStyleConverter()
self.assertEqual(c.convert({'x': 'y'}), QgsMapBoxGlStyleConverter.NoLayerList)
self.assertEqual(c.errorMessage(), 'Could not find layers list in JSON')
self.assertIsNone(c.renderer())
self.assertIsNone(c.labeling())
def testInterpolateExpression(self):
self.assertEqual(QgsMapBoxGlStyleConverter.interpolateExpression(5, 13, 27, 29, 1),
'27 + 2 * (1^(@zoom_level-5)-1)/(1^(13-5)-1)')
self.assertEqual(QgsMapBoxGlStyleConverter.interpolateExpression(5, 13, 27, 29, 1.5),
'27 + 2 * (1.5^(@zoom_level-5)-1)/(1.5^(13-5)-1)')
def testColorAsHslaComponents(self):
self.assertEqual(QgsMapBoxGlStyleConverter.colorAsHslaComponents(QColor.fromHsl(30, 50, 70)), (30, 19, 27, 255))
def testParseInterpolateColorByZoom(self):
conversion_context = QgsMapBoxGlStyleConversionContext()
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateColorByZoom({}, conversion_context).isActive(),
False)
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateColorByZoom({'base': 1,
'stops': [[0, '#f1f075'],
[150, '#b52e3e'],
[250, '#e55e5e']]
},
conversion_context).expressionString(),
'CASE WHEN @zoom_level >= 0 AND @zoom_level < 150 THEN color_hsla(scale_linear(@zoom_level, 0, 150, 59, 352), scale_linear(@zoom_level, 0, 150, 81, 59), scale_linear(@zoom_level, 0, 150, 70, 44), scale_linear(@zoom_level, 0, 150, 255, 255)) WHEN @zoom_level >= 150 AND @zoom_level < 250 THEN color_hsla(scale_linear(@zoom_level, 150, 250, 352, 0), scale_linear(@zoom_level, 150, 250, 59, 72), scale_linear(@zoom_level, 150, 250, 44, 63), scale_linear(@zoom_level, 150, 250, 255, 255)) WHEN @zoom_level >= 250 THEN color_hsla(0, 72, 63, 255) ELSE color_hsla(0, 72, 63, 255) END')
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateColorByZoom({'base': 2,
'stops': [[0, '#f1f075'],
[150, '#b52e3e'],
[250, '#e55e5e']]
},
conversion_context).expressionString(),
'CASE WHEN @zoom_level >= 0 AND @zoom_level < 150 THEN color_hsla(59 + 293 * (2^(@zoom_level-0)-1)/(2^(150-0)-1), 81 + -22 * (2^(@zoom_level-0)-1)/(2^(150-0)-1), 70 + -26 * (2^(@zoom_level-0)-1)/(2^(150-0)-1), 255 + 0 * (2^(@zoom_level-0)-1)/(2^(150-0)-1)) WHEN @zoom_level >= 150 AND @zoom_level < 250 THEN color_hsla(352 + -352 * (2^(@zoom_level-150)-1)/(2^(250-150)-1), 59 + 13 * (2^(@zoom_level-150)-1)/(2^(250-150)-1), 44 + 19 * (2^(@zoom_level-150)-1)/(2^(250-150)-1), 255 + 0 * (2^(@zoom_level-150)-1)/(2^(250-150)-1)) WHEN @zoom_level >= 250 THEN color_hsla(0, 72, 63, 255) ELSE color_hsla(0, 72, 63, 255) END')
def testParseStops(self):
conversion_context = QgsMapBoxGlStyleConversionContext()
self.assertEqual(QgsMapBoxGlStyleConverter.parseStops(1, [[1, 10], [2, 20], [5, 100]], 1, conversion_context),
'CASE WHEN @zoom_level > 1 AND @zoom_level <= 2 THEN scale_linear(@zoom_level, 1, 2, 10, 20) * 1 WHEN @zoom_level > 2 AND @zoom_level <= 5 THEN scale_linear(@zoom_level, 2, 5, 20, 100) * 1 END')
self.assertEqual(QgsMapBoxGlStyleConverter.parseStops(1.5, [[1, 10], [2, 20], [5, 100]], 1, conversion_context),
'CASE WHEN @zoom_level > 1 AND @zoom_level <= 2 THEN 10 + 10 * (1.5^(@zoom_level-1)-1)/(1.5^(2-1)-1) * 1 WHEN @zoom_level > 2 AND @zoom_level <= 5 THEN 20 + 80 * (1.5^(@zoom_level-2)-1)/(1.5^(5-2)-1) * 1 END')
self.assertEqual(QgsMapBoxGlStyleConverter.parseStops(1, [[1, 10], [2, 20], [5, 100]], 8, conversion_context),
'CASE WHEN @zoom_level > 1 AND @zoom_level <= 2 THEN scale_linear(@zoom_level, 1, 2, 10, 20) * 8 WHEN @zoom_level > 2 AND @zoom_level <= 5 THEN scale_linear(@zoom_level, 2, 5, 20, 100) * 8 END')
def testInterpolateByZoom(self):
conversion_context = QgsMapBoxGlStyleConversionContext()
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateByZoom({'base': 1,
'stops': [[0, 11],
[150, 15],
[250, 22]]
}, conversion_context).expressionString(),
'CASE WHEN @zoom_level > 0 AND @zoom_level <= 150 THEN scale_linear(@zoom_level, 0, 150, 11, 15) * 1 WHEN @zoom_level > 150 AND @zoom_level <= 250 THEN scale_linear(@zoom_level, 150, 250, 15, 22) * 1 END')
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateByZoom({'base': 1,
'stops': [[0, 11],
[150, 15]]
}, conversion_context).expressionString(),
'scale_linear(@zoom_level, 0, 150, 11, 15) * 1')
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateByZoom({'base': 2,
'stops': [[0, 11],
[150, 15]]
}, conversion_context).expressionString(),
'11 + 4 * (2^(@zoom_level-0)-1)/(2^(150-0)-1)* 1')
def testInterpolateOpacityByZoom(self):
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 1,
'stops': [[0, 0.1],
[150, 0.15],
[250, 0.2]]
}).expressionString(),
"CASE WHEN @zoom_level < 0 THEN set_color_part(@symbol_color, 'alpha', 0.1 * 255) WHEN @zoom_level >= 0 AND @zoom_level < 150 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 0, 150, 0.1 * 255, 0.15 * 255)) WHEN @zoom_level >= 150 AND @zoom_level < 250 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 150, 250, 0.15 * 255, 0.2 * 255)) WHEN @zoom_level >= 250 THEN set_color_part(@symbol_color, 'alpha', 0.2) END")
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 1,
'stops': [[0, 0.1],
[150, 0.15]]
}).expressionString(),
"set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 0, 150, 25.5, 38.25))")
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 2,
'stops': [[0, 0.1],
[150, 0.15]]
}).expressionString(),
"set_color_part(@symbol_color, 'alpha', 25.5 + 0 * (2^(@zoom_level-0)-1)/(2^(150-0)-1))")
def testInterpolateListByZoom(self):
conversion_context = QgsMapBoxGlStyleConversionContext()
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateListByZoom([
"interpolate",
["linear"],
["zoom"],
10,
0.1,
15,
0.3,
18,
0.6
], QgsMapBoxGlStyleConverter.Opacity, conversion_context, 2).expressionString(),
"CASE WHEN @zoom_level < 10 THEN set_color_part(@symbol_color, 'alpha', 0.1 * 255) WHEN @zoom_level >= 10 AND @zoom_level < 15 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 10, 15, 0.1 * 255, 0.3 * 255)) WHEN @zoom_level >= 15 AND @zoom_level < 18 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 15, 18, 0.3 * 255, 0.6 * 255)) WHEN @zoom_level >= 18 THEN set_color_part(@symbol_color, 'alpha', 0.6) END")
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateListByZoom([
"interpolate",
["linear"],
["zoom"],
10,
0.1,
15,
0.3,
18,
0.6
], QgsMapBoxGlStyleConverter.Numeric, conversion_context, 2).expressionString(),
"CASE WHEN @zoom_level > 10 AND @zoom_level <= 15 THEN scale_linear(@zoom_level, 10, 15, 0.1, 0.3) * 2 WHEN @zoom_level > 15 AND @zoom_level <= 18 THEN scale_linear(@zoom_level, 15, 18, 0.3, 0.6) * 2 END")
def testParseExpression(self):
conversion_context = QgsMapBoxGlStyleConversionContext()
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression([
"all",
["==", ["get", "level"], 0],
["match", ["get", "type"], ["Restricted"], True, False]
], conversion_context),
'''(level IS 0) AND ("type" = 'Restricted')''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression([
"match", ["get", "type"], ["Restricted"], True, False
], conversion_context),
'''"type" = 'Restricted\'''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression([
"match", ["get", "type"], ["Restricted"], "r", ["Local"], "l", ["Secondary", "Main"], "m", "n"
], conversion_context),
'''CASE WHEN "type" = 'Restricted' THEN 'r' WHEN "type" = 'Local' THEN 'l' WHEN "type" IN ('Secondary', 'Main') THEN 'm' ELSE 'n' END''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression([
"all",
["==", ["get", "level"], 0],
["match", ["get", "type"], ["Restricted", "Temporary"], True, False]
], conversion_context),
'''(level IS 0) AND ("type" IN ('Restricted', 'Temporary'))''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression([
"any",
["match", ["get", "level"], [1], True, False],
["match", ["get", "type"], ["Local"], True, False]
], conversion_context),
'''("level" = 1) OR ("type" = 'Local')''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression([
"none",
["match", ["get", "level"], [1], True, False],
["match", ["get", "type"], ["Local"], True, False]
], conversion_context),
'''NOT ("level" = 1) AND NOT ("type" = 'Local')''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression([
"match",
["get", "type"],
["Primary", "Motorway"],
False,
True
], conversion_context),
'''CASE WHEN "type" IN ('Primary', 'Motorway') THEN FALSE ELSE TRUE END''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression(["==", "_symbol", 0], conversion_context),
'''"_symbol" IS 0''')
self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression(["all", ["==", "_symbol", 8], ["!in", "Viz", 3]],
conversion_context),
'''("_symbol" IS 8) AND (("Viz" IS NULL OR "Viz" NOT IN (3)))''')
def testConvertLabels(self):
context = QgsMapBoxGlStyleConversionContext()
style = {
"layout": {
"text-field": "{name_en}",
"text-font": [
"Open Sans Semibold",
"Arial Unicode MS Bold"
],
"text-max-width": 8,
"text-anchor": "top",
"text-size": 11,
"icon-size": 1
},
"type": "symbol",
"id": "poi_label",
"paint": {
"text-color": "#666",
"text-halo-width": 1.5,
"text-halo-color": "rgba(255,255,255,0.95)",
"text-halo-blur": 1
},
"source-layer": "poi_label"
}
renderer, has_renderer, labeling, has_labeling = QgsMapBoxGlStyleConverter.parseSymbolLayer(style, context)
self.assertFalse(has_renderer)
self.assertTrue(has_labeling)
self.assertEqual(labeling.labelSettings().fieldName, 'name_en')
self.assertFalse(labeling.labelSettings().isExpression)
style = {
"layout": {
"text-field": "name_en",
"text-font": [
"Open Sans Semibold",
"Arial Unicode MS Bold"
],
"text-max-width": 8,
"text-anchor": "top",
"text-size": 11,
"icon-size": 1
},
"type": "symbol",
"id": "poi_label",
"paint": {
"text-color": "#666",
"text-halo-width": 1.5,
"text-halo-color": "rgba(255,255,255,0.95)",
"text-halo-blur": 1
},
"source-layer": "poi_label"
}
renderer, has_renderer, labeling, has_labeling = QgsMapBoxGlStyleConverter.parseSymbolLayer(style, context)
self.assertFalse(has_renderer)
self.assertTrue(has_labeling)
self.assertEqual(labeling.labelSettings().fieldName, 'name_en')
self.assertFalse(labeling.labelSettings().isExpression)
style = {
"layout": {
"text-field": ["format",
"foo", {"font-scale": 1.2},
"bar", {"font-scale": 0.8}
],
"text-font": [
"Open Sans Semibold",
"Arial Unicode MS Bold"
],
"text-max-width": 8,
"text-anchor": "top",
"text-size": 11,
"icon-size": 1
},
"type": "symbol",
"id": "poi_label",
"paint": {
"text-color": "#666",
"text-halo-width": 1.5,
"text-halo-color": "rgba(255,255,255,0.95)",
"text-halo-blur": 1
},
"source-layer": "poi_label"
}
renderer, has_renderer, labeling, has_labeling = QgsMapBoxGlStyleConverter.parseSymbolLayer(style, context)
self.assertFalse(has_renderer)
self.assertTrue(has_labeling)
self.assertEqual(labeling.labelSettings().fieldName, 'concat("foo","bar")')
self.assertTrue(labeling.labelSettings().isExpression)
style = {
"layout": {
"text-field": "{name_en} - {name_fr}",
"text-font": [
"Open Sans Semibold",
"Arial Unicode MS Bold"
],
"text-max-width": 8,
"text-anchor": "top",
"text-size": 11,
"icon-size": 1
},
"type": "symbol",
"id": "poi_label",
"paint": {
"text-color": "#666",
"text-halo-width": 1.5,
"text-halo-color": "rgba(255,255,255,0.95)",
"text-halo-blur": 1
},
"source-layer": "poi_label"
}
renderer, has_renderer, labeling, has_labeling = QgsMapBoxGlStyleConverter.parseSymbolLayer(style, context)
self.assertFalse(has_renderer)
self.assertTrue(has_labeling)
self.assertEqual(labeling.labelSettings().fieldName, '''concat("name_en",' - ',"name_fr")''')
self.assertTrue(labeling.labelSettings().isExpression)
style = {
"layout": {
"text-field": ["format",
"{name_en} - {name_fr}", {"font-scale": 1.2},
"bar", {"font-scale": 0.8}
],
"text-font": [
"Open Sans Semibold",
"Arial Unicode MS Bold"
],
"text-max-width": 8,
"text-anchor": "top",
"text-size": 11,
"icon-size": 1
},
"type": "symbol",
"id": "poi_label",
"paint": {
"text-color": "#666",
"text-halo-width": 1.5,
"text-halo-color": "rgba(255,255,255,0.95)",
"text-halo-blur": 1
},
"source-layer": "poi_label"
}
renderer, has_renderer, labeling, has_labeling = QgsMapBoxGlStyleConverter.parseSymbolLayer(style, context)
self.assertFalse(has_renderer)
self.assertTrue(has_labeling)
self.assertEqual(labeling.labelSettings().fieldName, '''concat(concat("name_en",' - ',"name_fr"),"bar")''')
self.assertTrue(labeling.labelSettings().isExpression)
# text-transform
style = {
"layout": {
"text-field": "name_en",
"text-font": [
"Open Sans Semibold",
"Arial Unicode MS Bold"
],
"text-transform": "uppercase",
"text-max-width": 8,
"text-anchor": "top",
"text-size": 11,
"icon-size": 1
},
"type": "symbol",
"id": "poi_label",
"paint": {
"text-color": "#666",
"text-halo-width": 1.5,
"text-halo-color": "rgba(255,255,255,0.95)",
"text-halo-blur": 1
},
"source-layer": "poi_label"
}
renderer, has_renderer, labeling, has_labeling = QgsMapBoxGlStyleConverter.parseSymbolLayer(style, context)
self.assertFalse(has_renderer)
self.assertTrue(has_labeling)
self.assertEqual(labeling.labelSettings().fieldName, 'upper("name_en")')
self.assertTrue(labeling.labelSettings().isExpression)
style = {
"layout": {
"text-field": ["format",
"{name_en} - {name_fr}", {"font-scale": 1.2},
"bar", {"font-scale": 0.8}
],
"text-font": [
"Open Sans Semibold",
"Arial Unicode MS Bold"
],
"text-transform": "lowercase",
"text-max-width": 8,
"text-anchor": "top",
"text-size": 11,
"icon-size": 1
},
"type": "symbol",
"id": "poi_label",
"paint": {
"text-color": "#666",
"text-halo-width": 1.5,
"text-halo-color": "rgba(255,255,255,0.95)",
"text-halo-blur": 1
},
"source-layer": "poi_label"
}
renderer, has_renderer, labeling, has_labeling = QgsMapBoxGlStyleConverter.parseSymbolLayer(style, context)
self.assertFalse(has_renderer)
self.assertTrue(has_labeling)
self.assertEqual(labeling.labelSettings().fieldName, '''lower(concat(concat("name_en",' - ',"name_fr"),"bar"))''')
self.assertTrue(labeling.labelSettings().isExpression)
if __name__ == '__main__':
unittest.main()