added test cases

pom.xml

@@ -166,7 +166,12 @@
 			<groupId>net.imagej</groupId>
 			<artifactId>imagej-common</artifactId>
 		</dependency>
-
+ 		<dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>3.12.4</version> <!-- Use the latest version -->
+            <scope>test</scope> <!-- Make sure Mockito is only included for testing -->
+        </dependency>
 		<!-- ImgLib2 dependencies -->
 		<dependency>
 			<groupId>net.imglib2</groupId>

src/test/java/fiji/plugin/trackmate/SpotCollectionTest.java

@@ -424,26 +424,26 @@ public void testPut()
 		}
 	}
 
-	@Test
-	public void testFirstKey()
-	{
-		// First key should be frame 1
-		assertEquals( frames.get( 0 ), sc.firstKey() );
-
-		// Create a new frame content
-		final int N_SPOTS_TO_ADD = 20;
-		final HashSet< Spot > spots = new HashSet<>( N_SPOTS_TO_ADD );
-		for ( int i = 0; i < N_SPOTS_TO_ADD; i++ )
+		@Test
+		public void testFirstKey()
 		{
-			spots.add( new Spot( -1d, -1d, -1d, 1d, -1d ) );
-		}
-		// Add it to a new frame
-		final int targetFrame = -1;
-		sc.put( targetFrame, spots );
+			// First key should be frame 1
+			assertEquals( frames.get( 0 ), sc.firstKey() );
 
-		// First key should be new frame
-		assertEquals( targetFrame, sc.firstKey().longValue() );
-	}
+			// Create a new frame content
+			final int N_SPOTS_TO_ADD = 20;
+			final HashSet< Spot > spots = new HashSet<>( N_SPOTS_TO_ADD );
+			for ( int i = 0; i < N_SPOTS_TO_ADD; i++ )
+			{
+				spots.add( new Spot( -1d, -1d, -1d, 1d, -1d ) );
+			}
+			// Add it to a new frame
+			final int targetFrame = -1;
+			sc.put( targetFrame, spots );
+
+			// First key should be new frame
+			assertEquals( targetFrame, sc.firstKey().longValue() );
+		}
 
 	@Test
 	public void testLastKey()

src/test/java/fiji/plugin/trackmate/features/FeatureUtilsTest.java

@@ -0,0 +1,20 @@
+package fiji.plugin.trackmate.features;
+
+import static org.junit.Assert.assertNotNull;
+import org.junit.Test;
+
+import fiji.plugin.trackmate.Model;
+
+import fiji.plugin.trackmate.gui.displaysettings.DisplaySettings.TrackMateObject;
+
+public class FeatureUtilsTest {
+
+
+    @Test
+    public void testCollectFeatureValuesForEdges() {
+        Model model = FeatureUtils.DUMMY_MODEL;
+        double[] values = FeatureUtils.collectFeatureValues("SomeFeature", TrackMateObject.EDGES, model, true);
+        assertNotNull(values);
+    }
+
+}

src/test/java/fiji/plugin/trackmate/graph/FromContinousBranchesTest.java

@@ -0,0 +1,29 @@
+package fiji.plugin.trackmate.graph;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.util.ArrayList;
+
+import org.junit.Test;
+
+
+public class FromContinousBranchesTest {
+
+    // Returns true if branches and links are not null and links are made of two spots.
+    @Test
+    public void test_behaviour_true() {
+        FromContinuousBranches obj = new FromContinuousBranches(new ArrayList<>(), new ArrayList<>());
+        boolean result = obj.checkInput();
+        assertTrue(result);
+    }
+
+    // Returns false if branches is null.
+    @Test
+    public void test_behaviour_false() {
+        FromContinuousBranches obj = new FromContinuousBranches(null, new ArrayList<>());
+        boolean result = obj.checkInput();
+        assertFalse(result);
+    }
+
+}

src/test/java/fiji/plugin/trackmate/graph/SortedDepthFirstIteratorTest.java

@@ -113,7 +113,7 @@ public int compare( final Spot o1, final Spot o2 )
 	public final void testBehavior()
 	{
 
-		// Sort names
+		// Sort names+
 		final String[] expectedSortedNames = names.clone();
 		final Comparator< String > alphabeticalOrder = new Comparator< String >()
 		{

src/test/java/fiji/plugin/trackmate/tracking/jaqaman/costmatrix/SparseCostMatrixTest.java

@@ -78,4 +78,23 @@ public void testTranspose()
 		}
 	}
 
+	@Test
+    public void test_valid_assignment_cost() {
+        // Create a SparseCostMatrix object with sample data
+        double[] cc = {1.0, 2.0, 3.0, 4.0};
+        int[] kk = {0, 1, 2, 3};
+        int[] number = {2, 2};
+        int nCols = 4;
+        SparseCostMatrix matrix = new SparseCostMatrix(cc, kk, number, nCols);
+
+        // Creating a valid assignment
+        int[] rowAssignment = {1, 3};
+
+        // Calculating the total assignment cost
+        double totalCost = matrix.totalAssignmentCost(rowAssignment);
+
+        // Assert that if total cost is correct
+        assertEquals(6.0, totalCost, 0.0001);
+    }
+
 }

src/test/java/fiji/plugin/trackmate/tracking/kalman/AdvancedKalmanTrackerFactoryTest.java

@@ -0,0 +1,39 @@
+package fiji.plugin.trackmate.tracking.kalman;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+import java.util.HashMap;
+import java.util.Map;
+import org.junit.Test;
+import fiji.plugin.trackmate.SpotCollection;
+import fiji.plugin.trackmate.tracking.SpotTracker;
+
+public class AdvancedKalmanTrackerFactoryTest {
+
+    @Test
+    public void testCreate() {
+        // Creating necessary mock objects
+        Map<String, Object> settings = new HashMap<>();
+        SpotCollection spots = mock(SpotCollection.class);
+
+        // Creating AdvancedKalmanTrackerFactory instance
+        AdvancedKalmanTrackerFactory factory = new AdvancedKalmanTrackerFactory();
+
+        // Testing create method
+        SpotTracker tracker = factory.create(spots, settings);
+        assertNotNull(tracker);
+        assertTrue(tracker instanceof AdvancedKalmanTracker);
+    }
+
+
+
+       // Returns False if the input settings map is empty.
+    @Test
+    public void test_empty_map() {
+        Map<String, Object> settings = new HashMap<>();
+        boolean result = new AdvancedKalmanTrackerFactory().checkSettingsValidity(settings);
+        assertFalse(result);
+    }
+
+}