Add more tests to improve code coverage

Signed-off-by: Daniel Widdis <[email protected]>

.codecov.yml

@@ -1,6 +1,10 @@
 codecov:
   require_ci_to_pass: yes
 
+# ignore files in demo package
+ignore:
+  - "demo"
+
 coverage:
   precision: 2
   round: down

src/test/java/org/opensearch/flowframework/template/ProcessNodeTests.java

@@ -15,6 +15,7 @@
 import org.opensearch.flowframework.workflow.WorkflowStep;
 import org.opensearch.test.OpenSearchTestCase;
 
+import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
@@ -41,21 +42,24 @@ public CompletableFuture<WorkflowData> execute(List<WorkflowData> data) {
             public String getName() {
                 return "test";
             }
-        }, WorkflowData.EMPTY);
+        });
         assertEquals("A", nodeA.id());
         assertEquals("test", nodeA.workflowStep().getName());
         assertEquals(WorkflowData.EMPTY, nodeA.input());
+        assertEquals(Collections.emptySet(), nodeA.getPredecessors());
+        assertEquals("A", nodeA.toString());
+
         // TODO: Once we can get OpenSearch Thread Pool for this execute method, create an IT and don't test execute here
         CompletableFuture<WorkflowData> f = nodeA.execute();
         assertEquals(f, nodeA.getFuture());
         f.orTimeout(5, TimeUnit.SECONDS);
         assertTrue(f.isDone());
         assertEquals(WorkflowData.EMPTY, f.get());
 
-        ProcessNode nodeB = new ProcessNode("B", null, null);
+        ProcessNode nodeB = new ProcessNode("B", null);
         assertNotEquals(nodeA, nodeB);
 
-        ProcessNode nodeA2 = new ProcessNode("A", null, null);
+        ProcessNode nodeA2 = new ProcessNode("A", null);
         assertEquals(nodeA, nodeA2);
     }
 }

src/test/java/org/opensearch/flowframework/workflow/WorkflowDataTests.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ */
+package org.opensearch.flowframework.workflow;
+
+import org.opensearch.test.OpenSearchTestCase;
+
+import java.util.Collections;
+
+public class WorkflowDataTests extends OpenSearchTestCase {
+
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+    }
+
+    public void testWorkflowData() {
+        WorkflowData data = new WorkflowData() {
+        };
+        assertEquals(Collections.emptyMap(), data.getParams());
+        assertEquals(Collections.emptyMap(), data.getContent());
+    }
+}