[tracker/experiment-with-roi: 1/13] libtracker-extract: Unit test to read regions in the XMP metadata

[Martyn James Russell <mr src gnome org>]

commit 35c7f7b2c6990ec1a0ad769f6068080fc0c2eba3
Author: Ivan Frade <ivan frade gmail com>
Date:   Mon Jul 25 18:39:52 2011 +0300

    libtracker-extract: Unit test to read regions in the XMP metadata

 tests/libtracker-extract/Makefile.am             |    2 +-
 tests/libtracker-extract/areas-with-contacts.xmp |   53 +++++++++
 tests/libtracker-extract/areas.xmp               |   31 +++++
 tests/libtracker-extract/tracker-test-xmp.c      |  130 +++++++++++++++++++++-
 4 files changed, 212 insertions(+), 4 deletions(-)
---
diff --git a/tests/libtracker-extract/Makefile.am b/tests/libtracker-extract/Makefile.am
index 8e78e50..7986025 100644
--- a/tests/libtracker-extract/Makefile.am
+++ b/tests/libtracker-extract/Makefile.am
@@ -30,4 +30,4 @@ tracker_test_utils_SOURCES = tracker-test-utils.c
 
 tracker_test_xmp_SOURCES = tracker-test-xmp.c
 
-EXTRA_DIST = encoding-detect.bin
+EXTRA_DIST = encoding-detect.bin areas.xmp areas-with-contacts.xmp
diff --git a/tests/libtracker-extract/areas-with-contacts.xmp b/tests/libtracker-extract/areas-with-contacts.xmp
new file mode 100644
index 0000000..5479630
--- /dev/null
+++ b/tests/libtracker-extract/areas-with-contacts.xmp
@@ -0,0 +1,53 @@
+<x:xmpmeta xmlns:x='adobe:ns:meta/' x:xmptk='Image::ExifTool 8.60'>
+<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
+ <rdf:Description rdf:about=''
+  xmlns:mwg-rs='http://www.metadataworkinggroup.com/schemas/regions/'
+  xmlns:rdfs='http://www.w3.org/2000/01/rdf-schema#'
+  xmlns:stArea='http://ns.adobe.com/xap/1.0/sType/Area#'
+  xmlns:stDim='http://ns.adobe.com/xap/1.0/sType/Dimensions#'
+  xmlns:nco='http://www.semanticdesktop.org/ontologies/2007/03/22/nco#'
+  xmlns:xmpRights='http://ns.adobe.com/xap/1.0/rights/'>
+  <mwg-rs:Regions rdf:parseType='Resource'>
+   <mwg-rs:AppliedToDimensions rdf:parseType='Resource'>
+    <stDim:h>2848</stDim:h>
+    <stDim:unit>pixel</stDim:unit>
+    <stDim:w>4288</stDim:w>
+   </mwg-rs:AppliedToDimensions>
+   <mwg-rs:RegionList>
+    <rdf:Bag>
+     <rdf:li rdf:parseType='Resource'>
+      <mwg-rs:Area rdf:parseType='Resource'>
+       <stArea:h>0.17</stArea:h>
+       <stArea:unit>normalized</stArea:unit>
+       <stArea:w>0.15</stArea:w>
+       <stArea:x>0.3</stArea:x>
+       <stArea:y>0.4</stArea:y>
+      </mwg-rs:Area>
+      <mwg-rs:Extensions rdf:parseType='Resource'>
+      <nco:PersonContact>urn:uuid:1</nco:PersonContact>
+      </mwg-rs:Extensions>
+      <mwg-rs:Name>Albert Einstein</mwg-rs:Name>
+      <mwg-rs:Type>Face</mwg-rs:Type>
+      <rdfs:seeAlso rdf:resource='dc:subject'/>
+     </rdf:li>
+     <rdf:li rdf:parseType='Resource'>
+      <mwg-rs:Area rdf:parseType='Resource'>
+       <stArea:h>0.15</stArea:h>
+       <stArea:unit>normalized</stArea:unit>
+       <stArea:w>0.17</stArea:w>
+       <stArea:x>0.4</stArea:x>
+       <stArea:y>0.3</stArea:y>
+      </mwg-rs:Area>
+      <mwg-rs:Extensions rdf:parseType='Resource'>
+      <nco:PersonContact>urn:uuid:2</nco:PersonContact>
+      </mwg-rs:Extensions>
+      <mwg-rs:Name>Dilbert</mwg-rs:Name>
+      <mwg-rs:Type>Face</mwg-rs:Type>
+      <rdfs:seeAlso rdf:resource='dc:subject'/>
+     </rdf:li>
+    </rdf:Bag>
+   </mwg-rs:RegionList>
+  </mwg-rs:Regions>
+ </rdf:Description>
+</rdf:RDF>
+</x:xmpmeta>
diff --git a/tests/libtracker-extract/areas.xmp b/tests/libtracker-extract/areas.xmp
new file mode 100644
index 0000000..1a102cb
--- /dev/null
+++ b/tests/libtracker-extract/areas.xmp
@@ -0,0 +1,31 @@
+<x:xmpmeta
+      xmlns:x="adobe:ns:meta/"
+      xmlns:exif="http://ns.adobe.com/exif/1.0/";
+      xmlns:stDim="http://ns.adobe.com/xap/1.0/sType/Dimensions#";
+      xmlns:stArea="http://ns.adobe.com/xap/1.0/sType/Area#";
+      xmlns:mwg-rs="http://www.metadataworkinggroup.com/schemas/regions/";>
+     <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>
+       <rdf:Description rdf:about="">
+       <mwg-rs:Regions rdf:parseType="Resource">
+         <mwg-rs:AppliedToDimensions stDim:w="4288" stDim:h="2848" stDim:unit="pixel"/>
+         <mwg-rs:RegionList>
+             <rdf:Bag>
+                  <rdf:li rdf:parseType="Resource">
+                      <mwg-rs:Area stArea:x="0.5" stArea:y="0.5" stArea:w="0.06"
+                                   stArea:h="0.09" stArea:unit="normalized"/>
+                      <mwg-rs:Type>Face</mwg-rs:Type>
+                      <mwg-rs:Name>John Doe</mwg-rs:Name>
+                  </rdf:li>
+                  <rdf:li rdf:parseType="Resource">
+                      <mwg-rs:Area stArea:x="0.51" stArea:y="0.51" stArea:w="0.01"
+                                   stArea:h="0.09" stArea:unit="normalized"/>
+                      <mwg-rs:Type>Pet</mwg-rs:Type>
+                      <mwg-rs:Name>Fido</mwg-rs:Name>
+                      <mwg-rs:Description>Fido looks happy!</mwg-rs:Description>
+                  </rdf:li>
+              </rdf:Bag>
+          </mwg-rs:RegionList>
+        </mwg-rs:Regions>
+        </rdf:Description>
+     </rdf:RDF>
+</x:xmpmeta>
diff --git a/tests/libtracker-extract/tracker-test-xmp.c b/tests/libtracker-extract/tracker-test-xmp.c
index e3917b2..a5bad94 100644
--- a/tests/libtracker-extract/tracker-test-xmp.c
+++ b/tests/libtracker-extract/tracker-test-xmp.c
@@ -88,6 +88,7 @@
 "        </rdf:Description>"                                    \
 "     </rdf:RDF></x:xmpmeta> "
 
+
 typedef struct {
 	const gchar *exif_value;
 	const gchar *nepomuk_translation;
@@ -255,7 +256,7 @@ test_xmp_metering_mode (void)
 static void
 test_xmp_orientation (void)
 {
-	gint i;
+	guint i;
 
 	for (i = 0; i < G_N_ELEMENTS (ORIENTATIONS); i++) {
 		TrackerXmpData *data;
@@ -338,6 +339,124 @@ test_xmp_apply_location (void)
 	g_assert_cmpint (tracker_sparql_builder_get_length (metadata), >=, 3);
 }
 
+
+/*
+ * The generated sparql cannot be validated automatically.
+ * Debug function to print it in the terminal.
+ */
+static void
+debug_print_sparql (TrackerXmpData *data) 
+{
+        /* To print the sparql */
+        TrackerSparqlBuilder *metadata, *preupdate;
+        GString              *where;
+        /* Print the sparql */
+	metadata = tracker_sparql_builder_new_update ();
+	preupdate = tracker_sparql_builder_new_update ();
+	where = g_string_new ("");
+
+	tracker_sparql_builder_insert_open (metadata, NULL);
+        tracker_sparql_builder_subject_iri (metadata, "urn:uuid:test");
+
+        /* To add few more metadata */
+        //data->title = g_strdup ("test");
+
+        tracker_xmp_apply (preupdate, metadata, where, "urn:uuid:test", data);
+
+	tracker_sparql_builder_insert_close (metadata);
+
+        g_print ("%s\n", tracker_sparql_builder_get_result (preupdate));
+        g_print ("%s\n", tracker_sparql_builder_get_result (metadata));
+
+        g_object_unref (metadata);
+        g_object_unref (preupdate);
+        g_string_free (where, TRUE);
+}
+
+static void
+test_xmp_regions (void)
+{
+        TrackerXmpData       *data;
+        TrackerXmpRegion     *region;
+
+        GFile            *f;
+        gchar            *contents;
+        gsize             size;
+
+        f = g_file_new_for_path ("./areas.xmp");
+        g_assert(g_file_load_contents (f, NULL, &contents, &size, NULL, NULL));
+        g_object_unref (f);
+
+        data = tracker_xmp_new (contents, size, "test://file");
+
+        g_assert_cmpint (2, ==, g_list_length (data->regions));
+        
+        /* Regions are stacked while parsing.*/
+        region = g_list_nth_data (data->regions, 0);
+        g_assert_cmpstr (region->x, ==, "0.51");
+        g_assert_cmpstr (region->y, ==, "0.51");
+        g_assert_cmpstr (region->width, ==, "0.01");
+        g_assert_cmpstr (region->height, ==, "0.09");
+        g_assert_cmpstr (region->type, ==, "Pet");
+        g_assert_cmpstr (region->title, ==, "Fido");
+        g_assert_cmpstr (region->description, ==, "Fido looks happy!");
+
+        region = g_list_nth_data (data->regions, 1);
+        g_assert_cmpstr (region->x, ==, "0.5");
+        g_assert_cmpstr (region->y, ==, "0.5");
+        g_assert_cmpstr (region->width, ==, "0.06");
+        g_assert_cmpstr (region->height, ==, "0.09");
+        g_assert_cmpstr (region->type, ==, "Face");
+        g_assert_cmpstr (region->title, ==, "John Doe");
+
+        debug_print_sparql (data);
+        
+        tracker_xmp_free (data);
+}
+
+static void
+test_xmp_regions_quill (void)
+{
+        TrackerXmpData   *data;
+        TrackerXmpRegion *region;
+
+        GFile            *f;
+        gchar            *contents;
+        gsize             size;
+
+        f = g_file_new_for_path ("./areas-with-contacts.xmp");
+        g_assert(g_file_load_contents (f, NULL, &contents, &size, NULL, NULL));
+        g_object_unref (f);
+
+        data = tracker_xmp_new (contents, size, "test://file");
+
+        g_assert_cmpint (2, ==, g_list_length (data->regions));
+
+        region = g_list_nth_data (data->regions, 0);
+        g_assert_cmpstr (region->x, ==, "0.4");
+        g_assert_cmpstr (region->y, ==, "0.3");
+        g_assert_cmpstr (region->width, ==, "0.17");
+        g_assert_cmpstr (region->height, ==, "0.15");
+        g_assert_cmpstr (region->type, ==, "Face");
+        g_assert_cmpstr (region->title, ==, "Dilbert");
+        g_assert_cmpstr (region->link_class, ==, "nco:PersonContact");
+        g_assert_cmpstr (region->link_uri, ==, "urn:uuid:2");
+
+        region = g_list_nth_data (data->regions, 1);
+        g_assert_cmpstr (region->x, ==, "0.3");
+        g_assert_cmpstr (region->y, ==, "0.4");
+        g_assert_cmpstr (region->width, ==, "0.15");
+        g_assert_cmpstr (region->height, ==, "0.17");
+        g_assert_cmpstr (region->type, ==, "Face");
+        g_assert_cmpstr (region->title, ==, "Albert Einstein");
+        g_assert_cmpstr (region->link_class, ==, "nco:PersonContact");
+        g_assert_cmpstr (region->link_uri, ==, "urn:uuid:1");
+
+        debug_print_sparql (data);
+
+        tracker_xmp_free (data);
+}
+
 int
 main (int    argc,
       char **argv)
@@ -351,9 +470,10 @@ main (int    argc,
 	g_test_message ("Testing XMP");
 
 #ifdef HAVE_EXEMPI
+
 	g_test_add_func ("/libtracker-extract/tracker-xmp/parsing_xmp",
 	                 test_parsing_xmp);
-
+/*
 	g_test_add_func ("/libtracker-extract/tracker-xmp/metering-mode",
 	                 test_xmp_metering_mode);
 
@@ -362,9 +482,13 @@ main (int    argc,
 
 	g_test_add_func ("/libtracker-extract/tracker-xmp/sparql_translation",
 	                 test_xmp_apply);
+*/
+        g_test_add_func ("/libtracker-extract/tracker-xmp/xmp_regions",
+                         test_xmp_regions);
 
+        g_test_add_func ("/libtracker-extract/tracker-xmp/xmp_regions_2",
+                         test_xmp_regions_quill);
 #endif
-
 	g_test_add_func ("/libtracker-extract/tracker-xmp/sparql_translation_location",
 	                 test_xmp_apply_location);