[gnome-maps/wip/mlundblad/localized-names-from-overpass: 1/2] WIP: Add unit tests for the OSMNames module

[Marcus Lundblad <mlundblad src gnome org>]

commit aae99a6b4696c67bf2965928ab42de59bb1b0d6f
Author: Marcus Lundblad <ml update uu se>
Date:   Mon Nov 16 23:38:05 2020 +0100

    WIP: Add unit tests for the OSMNames module

 tests/meson.build     |  2 +-
 tests/osmNamesTest.js | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+), 1 deletion(-)
---
diff --git a/tests/meson.build b/tests/meson.build
index 78b7d77e..86475d09 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -1,4 +1,4 @@
-tests = ['addressTest', 'colorTest', 'utilsTest']
+tests = ['addressTest', 'colorTest', 'osmNamesTest', 'utilsTest']
 
 foreach test : tests
   script_conf = configuration_data()
diff --git a/tests/osmNamesTest.js b/tests/osmNamesTest.js
new file mode 100644
index 00000000..172688e8
--- /dev/null
+++ b/tests/osmNamesTest.js
@@ -0,0 +1,76 @@
+/* -*- Mode: JS2; indent-tabs-mode: nil; js2-basic-offset: 4 -*- */
+/* vim: set et ts=4 sw=4: */
+/*
+ * Copyright (c) 2020 Marcus Lundblad
+ *
+ * GNOME Maps 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.
+ *
+ * GNOME Maps is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with GNOME Maps; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Marcus Lundblad <ml update uu se>
+ */
+
+pkg.require({ 'Gdk': '3.0',
+              'Gtk': '3.0' });
+
+const OSMNames = imports.osmNames;
+
+const JsUnit = imports.jsUnit;
+
+const TAGS1 = { 'name': 'Name',
+                'name:en': 'Name',
+                'name:de': 'Name',
+                'name:sv': 'Namn' };
+
+const TAGS2 = { 'int_name': 'Shin-Ōsaka',
+                'name': '新大阪',
+                'name:en': 'Shin-Osaka',
+                'name:ja': '新大阪',
+                'name:ja_rm': 'Shin Ōsaka',
+                'name:ko': '신오사카' };
+
+const TAGS3 = { 'int_name': 'Shin-Ōsaka',
+                'name': '新大阪',
+                'name:en': 'Shin-Osaka',
+                'name:ja': '新大阪',
+                'name:ja-Latn': 'Shin Ōsaka',
+                'name:ko': '신오사카' };
+
+const TAGS4 = { 'name': 'Uppsala',
+                'name:de': 'Uppsala',
+                'name:eo': 'Upsalo',
+                'name:fi': 'Uppsala',
+                'name:he': 'אופסלה',
+                'name:hu': 'Uppsala',
+                'name:is': 'Uppsalir',
+                'name:ko': '웁살라',
+                'name:lt': 'Upsala',
+                'name:nds': 'Uppsala',
+                'name:ru': 'Уппсала',
+                'name:sv': 'Uppsala',
+                'name:yi': 'אופסאלא'};
+
+function main() {
+    JsUnit.assertEquals('Name in language', 'Namn',
+                        OSMNames.getNameForLanguageAndCountry(TAGS1, 'sv', 'GB'));
+    JsUnit.assertEquals('Fallback when language not localized', 'Name',
+                        OSMNames.getNameForLanguageAndCountry(TAGS1, 'fi', 'GB'));
+    JsUnit.assertEquals('Legacy Japanese romanization tag', 'Shin Ōsaka',
+                        OSMNames.getNameForLanguageAndCountry(TAGS2, 'sv', 'JP'));
+    JsUnit.assertEquals('Japanese romanization tag', 'Shin Ōsaka',
+                        OSMNames.getNameForLanguageAndCountry(TAGS3, 'sv', 'JP'));
+    JsUnit.assertEquals('Explicit English', 'Shin-Osaka',
+                        OSMNames.getNameForLanguageAndCountry(TAGS3, 'en', 'JP'));
+    JsUnit.assertEquals('Available tag in similar alphabeth', 'Уппсала',
+                        OSMNames.getNameForLanguageAndCountry(TAGS4, 'uk', 'SE'));
+}
+