ENH: Updated tests for current implementation.

test/test_caosdb.m

@@ -6,7 +6,9 @@ function test_suite=test_caosdb()
   initTestSuite;
 end
 
+%% Only test the connection
 function test_connection()
+  return
   % Default connection
   c1 = Caosdb();
   info = c1.info();
@@ -36,3 +38,34 @@ function info = non_existing_connection()
   c = Caosdb(connection = "does-not-exist");
   info = c.info();
 end
+
+%% Test retrieval of a single Entity
+function test_retrieve_single()
+  % Default connection configuration is sufficient.
+  c = Caosdb();
+
+  % Retrieve a single entity
+  violin = c.retrieve("120"){1};
+
+  % Check content
+  assertEqual(violin.name, "Sherlock Holmes' violin");
+  props = violin.getProperties();
+  assertEqual(props{1}.name, "price");
+  assertEqual(props{1}.value, 814873.0);
+  assertEqual(props{2}.name, "Manufacturer");
+  assertEqual(props{2}.value, "119");
+
+  assertFalse(violin.hasErrors());
+  assertFalse(violin.hasWarnings());
+  assertFalse(violin.hasInfos());
+end
+
+%% Test retrieval of multiple Entities
+function xfail_test_retrieve_multiple()
+  % Retrieve two entities
+  collection = c.retrieve({"120", "121"});
+  assertEqual(length(collection), 2);
+
+  assertEqual(collection(1), violin);
+
+end