Make tests pass with refactored ZaaImporter.

zaaReloaded2/Importer/ZaaImporter/LaurisTimePoint.cs

@@ -135,10 +135,8 @@ namespace zaaReloaded2.Importer.ZaaImporter
             IList<String> paragraphs,
             Parameters parameterDictionary,
             Units unitDictionary)
-            : this()
+            : this(parameterDictionary, unitDictionary)
         {
-            _parameterDictionary = parameterDictionary;
-            _unitDictionary = unitDictionary;
             Paragraphs = paragraphs;
         }
 
@@ -147,6 +145,15 @@ namespace zaaReloaded2.Importer.ZaaImporter
         {
         }
 
+        public LaurisTimePoint(
+                Parameters parameterDictionary,
+                Units unitDictionary)
+            : this()
+        {
+            _parameterDictionary = parameterDictionary;
+            _unitDictionary = unitDictionary;
+        }
+
         #endregion
 
         #region Public methods

zaaReloaded2/Importer/ZaaImporter/ZaaImporter.cs

@@ -78,8 +78,18 @@ namespace zaaReloaded2.Importer.ZaaImporter
                 // create a new time point.
                 if (LaurisTimePoint.IsTimeStampLine(paragraph))
                 {
-                    timePoint = new LaurisTimePoint(paragraph);
-                    Laboratory.AddTimePoint(timePoint);
+                    timePoint = new LaurisTimePoint(paragraph, _parameters, _units);
+                    // Add the time point to the laboratory only if none
+                    // with the same time stamp exists yet.
+                    TimePoint existing = null;
+                    if (Laboratory.TryGetTimePoint(timePoint.TimeStamp, ref existing))
+                    {
+                        timePoint = existing as LaurisTimePoint;
+                    }
+                    else
+                    {
+                        Laboratory.AddTimePoint(timePoint);
+                    }
                 }
                 // If the current paragraph looks like a paragraph with
                 // laboratory items, add it to the current time point;
@@ -88,7 +98,7 @@ namespace zaaReloaded2.Importer.ZaaImporter
                 {
                     if (timePoint == null)
                     {
-                        timePoint = new LaurisTimePoint();
+                        timePoint = new LaurisTimePoint(_parameters, _units);
                         Laboratory.AddTimePoint(timePoint);
                     }
                     timePoint.AddParagraph(paragraph);

zaaReloaded2/LabModel/Laboratory.cs

@@ -66,6 +66,30 @@ namespace zaaReloaded2.LabModel
             }
         }
 
+        /// <summary>
+        /// Checks if the Laboratory contains a TimePoint with an identical
+        /// time stamp to the one being queried.
+        /// </summary>
+        /// <param name="timePoint">TimePoint whose time stamp to look for.</param>
+        /// <returns>True if a TimePoint with identical time stamp exists.</returns>
+        public bool HasTimePoint(TimePoint timePoint)
+        {
+            return TimePoints.ContainsKey(timePoint.TimeStamp);
+        }
+
+        /// <summary>
+        /// Looks for a TimePoint with a given timeStamp and returns
+        /// it as a reference parameter.
+        /// </summary>
+        /// <param name="timeStamp">Time stamp to look for.</param>
+        /// <param name="timePoint">Resulting TimePoint (if any).</param>
+        /// <returns>True if TimePoints contains a TimePoint with
+        /// the requested timeStamp.</returns>
+        public bool TryGetTimePoint(DateTime timeStamp, ref TimePoint timePoint)
+        {
+            return TimePoints.TryGetValue(timeStamp, out timePoint);
+        }
+
         #endregion
     }
 }