data: add a test for the svg lookup ini file

Checks for required keys, that the SVG files actually exist and that
we don't have duplicate device matches.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

data/meson.build

@@ -77,6 +77,14 @@ test('check-svg', test_svg_files,
      args: svgs,
      env: ['BASEDIR=@0@'.format(meson.current_source_dir())])
 
+test('svg-lookup-check',
+     find_program('svg-lookup-ini-test.py'),
+     args: [
+         svg_mapping,
+         join_paths(meson.source_root(), 'data/svgs/')
+     ],
+)
+
 gresource = configure_file(input: 'piper.gresource.xml.in',
                            output: 'piper.gresource.xml',
                            command: ['generate-piper-gresource.xml.py',

data/svg-lookup-ini-test.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+
+import argparse
+import configparser
+import unittest
+import sys
+from pathlib import Path
+
+path = None
+svgdir = None
+config = None
+
+
+class TestSVGLookup(unittest.TestCase):
+    def test_has_sections(self):
+        self.assertTrue(config.sections())
+
+    def test_required(self):
+        for name in config.sections():
+            s = config[name]
+            self.assertIn('DeviceMatch', s)
+            self.assertIn('Svg', s)
+
+    def test_svg_filename(self):
+        svgs = [config[s]['Svg'] for s in config.sections()]
+        for svg in svgs:
+            self.assertTrue(Path(svgdir, svg).exists(), msg=svg)
+
+    def test_uniq_match(self):
+        matches = [config[s]['DeviceMatch'] for s in config.sections()]
+        d = {}
+        for match in matches:
+            self.assertNotIn(match, d, msg='Duplicate match "{}"'.format(match))
+            d[match] = True
+
+
+def setUpModule():
+    global config, path
+
+    config = configparser.ConfigParser(strict=True)
+    config.optionxform = lambda option: option
+    config.read(path)
+    assert(config.sections())
+
+
+def main():
+    global path, svgdir
+
+    parser = argparse.ArgumentParser(description="Device data-file checker")
+    parser.add_argument('file', nargs=1, help='Absolute path to svg-lookup.ini')
+    parser.add_argument('svgdir', nargs=1, help='Directory containing svg files')
+    args, remainder = parser.parse_known_args()
+    path = args.file[0]
+    svgdir = args.svgdir[0]
+    unittest.main(argv=[sys.argv[0], *remainder])
+
+
+if __name__ == "__main__":
+    main()