stac initial tests

tests/src/core/CMakeLists.txt

@@ -181,6 +181,7 @@ set(TESTS
  testqgsspatialindexkdbush.cpp
  testqgssqliteexpressioncompiler.cpp
  testqgssqliteutils.cpp
+ testqgsstac.cpp
  testqgsstackeddiagram.cpp
  testqgsrelation.cpp
  testqgsstatisticalsummary.cpp

tests/src/core/testqgsstac.cpp

@@ -0,0 +1,153 @@
+/***************************************************************************
+                         testqgsstac.cpp
+                         -------------------------
+    begin                : August 2024
+    copyright            : (C) 2024 by Stefanos Natsis
+    email                : uclaros at gmail dot com
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "qgstest.h"
+#include <QObject>
+#include <QString>
+
+//qgis includes...
+#include "qgsstaccontroller.h"
+#include "qgsstaccatalog.h"
+#include "qgsstaccollection.h"
+#include "qgsstacitem.h"
+#include "qgsapplication.h"
+#include "qgsproject.h"
+#include "qgis.h"
+
+/**
+ * \ingroup UnitTests
+ * This is a unit test for STAC
+ */
+class TestQgsStac : public QObject
+{
+    Q_OBJECT
+
+  public:
+    TestQgsStac() = default;
+
+  private slots:
+    void initTestCase();// will be called before the first testfunction is executed.
+    void cleanupTestCase();// will be called after the last testfunction was executed.
+    void init() {} // will be called before each testfunction is executed.
+    void cleanup() {} // will be called after every testfunction.
+
+    void testParseLocalCatalog();
+    void testParseLocalCollection();
+    void testParseLocalItem();
+
+  private:
+    QString mDataDir;
+};
+
+void TestQgsStac::initTestCase()
+{
+  // init QGIS's paths - true means that all path will be inited from prefix
+  QgsApplication::init();
+  QgsApplication::initQgis();
+  QgsApplication::showSettings();
+  mDataDir = QStringLiteral( "%1/stac/" ).arg( TEST_DATA_DIR );
+}
+
+void TestQgsStac::cleanupTestCase()
+{
+  QgsApplication::exitQgis();
+}
+
+void TestQgsStac::testParseLocalCatalog()
+{
+  const QString fileName = mDataDir + QStringLiteral( "catalog.json" );
+  QgsStacController c;
+  QgsStacObject *obj = c.fetchStacObject( QStringLiteral( "file://%1" ).arg( fileName ) );
+  QVERIFY( obj );
+  QCOMPARE( obj->type(), QgsStacObject::Type::Catalog );
+  QgsStacCatalog *cat = dynamic_cast< QgsStacCatalog * >( obj );
+
+  QVERIFY( cat );
+  QVERIFY( cat->isValid() );
+  QCOMPARE( cat->id(), QLatin1String( "examples" ) );
+  QCOMPARE( cat->stacVersion(), QLatin1String( "1.0.0" ) );
+  QCOMPARE( cat->title(), QLatin1String( "Example Catalog" ) );
+  QCOMPARE( cat->description(), QLatin1String( "This catalog is a simple demonstration of an example catalog that is used to organize a hierarchy of collections and their items." ) );
+  QCOMPARE( cat->links().size(), 6 );
+  QVERIFY( cat->stacExtensions().isEmpty() );
+
+  delete cat;
+}
+
+void TestQgsStac::testParseLocalCollection()
+{
+  const QString fileName = mDataDir + QStringLiteral( "collection.json" );
+  QgsStacController c;
+  QgsStacObject *obj = c.fetchStacObject( QStringLiteral( "file://%1" ).arg( fileName ) );
+  QVERIFY( obj );
+  QCOMPARE( obj->type(), QgsStacObject::Type::Collection );
+  QgsStacCollection *col = dynamic_cast< QgsStacCollection * >( obj );
+
+  QVERIFY( col );
+  QVERIFY( col->isValid() );
+  QCOMPARE( col->id(), QLatin1String( "simple-collection" ) );
+  QCOMPARE( col->stacVersion(), QLatin1String( "1.0.0" ) );
+  QCOMPARE( col->title(), QLatin1String( "Simple Example Collection" ) );
+  QCOMPARE( col->description(), QLatin1String( "A simple collection demonstrating core catalog fields with links to a couple of items" ) );
+  QCOMPARE( col->links().size(), 5 );
+  QCOMPARE( col->providers().size(), 1 );
+  QCOMPARE( col->stacExtensions().size(), 3 );
+  QCOMPARE( col->license(), QLatin1String( "CC-BY-4.0" ) );
+  QVERIFY( col->assets().isEmpty() );
+
+  // extent
+  QgsStacExtent ext( col->extent() );
+  QVERIFY( !ext.hasDetailedSpatialExtents() );
+  QCOMPARE( ext.spatialExtent().xMinimum(), 172.91173669923782 );
+  QCOMPARE( ext.spatialExtent().yMinimum(), 1.3438851951615003 );
+  QCOMPARE( ext.spatialExtent().xMaximum(), 172.95469614953714 );
+  QCOMPARE( ext.spatialExtent().yMaximum(), 1.3690476620161975 );
+
+  QVERIFY( !ext.hasDetailedTemporalExtents() );
+  QCOMPARE( ext.temporalExtent().begin(), QDateTime::fromString( QStringLiteral( "2020-12-11T22:38:32.125Z" ), Qt::ISODateWithMs ) );
+  QCOMPARE( ext.temporalExtent().end(), QDateTime::fromString( QStringLiteral( "2020-12-14T18:02:31.437Z" ), Qt::ISODateWithMs ) );
+
+  // summaries
+  QVariantMap sum( col->summaries() );
+  QCOMPARE( sum.size(), 9 );
+  QCOMPARE( sum.value( QStringLiteral( "platform" ) ).toStringList(), QStringList() << QLatin1String( "cool_sat1" ) << QLatin1String( "cool_sat2" ) );
+
+  delete col;
+}
+
+void TestQgsStac::testParseLocalItem()
+{
+  const QString fileName = mDataDir + QStringLiteral( "core-item.json" );
+  QgsStacController c;
+  QgsStacObject *obj = c.fetchStacObject( QStringLiteral( "file://%1" ).arg( fileName ) );
+  QVERIFY( obj );
+  QCOMPARE( obj->type(), QgsStacObject::Type::Item );
+  QgsStacItem *item = dynamic_cast<QgsStacItem *>( obj );
+
+  QVERIFY( item );
+  QVERIFY( item->isValid() );
+  QCOMPARE( item->id(), QLatin1String( "20201211_223832_CS2" ) );
+  QCOMPARE( item->stacVersion(), QLatin1String( "1.0.0" ) );
+  QCOMPARE( item->links().size(), 4 );
+  QCOMPARE( item->stacExtensions().size(), 0 );
+  QCOMPARE( item->assets().size(), 6 );
+
+  delete item;
+}
+
+QGSTEST_MAIN( TestQgsStac )
+#include "testqgsstac.moc"

tests/testdata/stac/README

@@ -0,0 +1,2 @@
+Sample data borrowed from the stac specification:
+https://github.com/radiantearth/stac-spec/tree/master/examples

tests/testdata/stac/catalog.json

@@ -0,0 +1,43 @@
+{
+  "id": "examples",
+  "type": "Catalog",
+  "title": "Example Catalog",
+  "stac_version": "1.0.0",
+  "description": "This catalog is a simple demonstration of an example catalog that is used to organize a hierarchy of collections and their items.",
+  "links": [
+    {
+      "rel": "root",
+      "href": "./catalog.json",
+      "type": "application/json"
+    },
+    {
+      "rel": "child",
+      "href": "./extensions-collection/collection.json",
+      "type": "application/json",
+      "title": "Collection Demonstrating STAC Extensions"
+    },
+    {
+      "rel": "child",
+      "href": "./collection-only/collection.json",
+      "type": "application/json",
+      "title": "Collection with no items (standalone)"
+    },
+    {
+      "rel": "child",
+      "href": "./collection-only/collection-with-schemas.json",
+      "type": "application/json",
+      "title": "Collection with no items (standalone with JSON Schemas)"
+    },
+    {
+      "rel": "item",
+      "href": "./collectionless-item.json",
+      "type": "application/json",
+      "title": "Collection with no items (standalone)"
+    },
+    {
+      "rel": "self",
+      "href": "https://raw.githubusercontent.com/radiantearth/stac-spec/v1.0.0/examples/catalog.json",
+      "type": "application/json"
+    }
+  ]
+}