add more UT coverage for model/task transport actions

plugin/build.gradle

@@ -206,8 +206,6 @@ jacocoTestReport {
 
 List<String> jacocoExclusions = [
         // TODO: add more unit test to meet the minimal test coverage.
-        'org.opensearch.ml.action.models.*',
-        'org.opensearch.ml.action.tasks.*',
         'org.opensearch.ml.action.handler.*',
         'org.opensearch.ml.constant.CommonValue',
         'org.opensearch.ml.plugin.*',

plugin/src/test/java/org/opensearch/ml/action/models/DeleteModelTransportActionTests.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.opensearch.ml.action.models;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.*;
+
+import java.io.IOException;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.rules.ExpectedException;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.opensearch.action.ActionListener;
+import org.opensearch.action.delete.DeleteResponse;
+import org.opensearch.action.support.ActionFilters;
+import org.opensearch.client.Client;
+import org.opensearch.common.settings.Settings;
+import org.opensearch.common.util.concurrent.ThreadContext;
+import org.opensearch.ml.common.transport.model.MLModelDeleteRequest;
+import org.opensearch.test.OpenSearchTestCase;
+import org.opensearch.threadpool.ThreadPool;
+import org.opensearch.transport.TransportService;
+
+public class DeleteModelTransportActionTests extends OpenSearchTestCase {
+    @Mock
+    ThreadPool threadPool;
+
+    @Mock
+    Client client;
+
+    @Mock
+    TransportService transportService;
+
+    @Mock
+    ActionFilters actionFilters;
+
+    @Mock
+    ActionListener<DeleteResponse> actionListener;
+
+    @Mock
+    DeleteResponse deleteResponse;
+
+    @Rule
+    public ExpectedException exceptionRule = ExpectedException.none();
+
+    DeleteModelTransportAction deleteModelTransportAction;
+    MLModelDeleteRequest mlModelDeleteRequest;
+    ThreadContext threadContext;
+
+    @Before
+    public void setup() throws IOException {
+        MockitoAnnotations.openMocks(this);
+
+        mlModelDeleteRequest = MLModelDeleteRequest.builder().modelId("test_id").build();
+        deleteModelTransportAction = spy(new DeleteModelTransportAction(transportService, actionFilters, client));
+
+        Settings settings = Settings.builder().build();
+        threadContext = new ThreadContext(settings);
+        when(client.threadPool()).thenReturn(threadPool);
+        when(threadPool.getThreadContext()).thenReturn(threadContext);
+    }
+
+    public void testDeleteModel_Success() {
+        doAnswer(invocation -> {
+            ActionListener<DeleteResponse> listener = invocation.getArgument(1);
+            listener.onResponse(deleteResponse);
+            return null;
+        }).when(client).delete(any(), any());
+
+        deleteModelTransportAction.doExecute(null, mlModelDeleteRequest, actionListener);
+        verify(actionListener).onResponse(deleteResponse);
+    }
+
+    public void testDeleteModel_RuntimeException() {
+        doAnswer(invocation -> {
+            ActionListener<DeleteResponse> listener = invocation.getArgument(1);
+            listener.onFailure(new RuntimeException("errorMessage"));
+            return null;
+        }).when(client).delete(any(), any());
+
+        deleteModelTransportAction.doExecute(null, mlModelDeleteRequest, actionListener);
+        ArgumentCaptor<Exception> argumentCaptor = ArgumentCaptor.forClass(Exception.class);
+        verify(actionListener).onFailure(argumentCaptor.capture());
+        assertEquals("errorMessage", argumentCaptor.getValue().getMessage());
+    }
+
+    public void testDeleteModel_ThreadContextError() {
+        when(threadPool.getThreadContext()).thenThrow(new RuntimeException("thread context error"));
+        deleteModelTransportAction.doExecute(null, mlModelDeleteRequest, actionListener);
+        ArgumentCaptor<Exception> argumentCaptor = ArgumentCaptor.forClass(Exception.class);
+        verify(actionListener).onFailure(argumentCaptor.capture());
+        assertEquals("thread context error", argumentCaptor.getValue().getMessage());
+    }
+}

plugin/src/test/java/org/opensearch/ml/action/models/GetModelITTests.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.opensearch.ml.action.models;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.rules.ExpectedException;
+import org.opensearch.action.ActionRequestValidationException;
+import org.opensearch.ml.action.MLCommonsIntegTestCase;
+import org.opensearch.ml.common.MLModel;
+import org.opensearch.ml.common.exception.MLResourceNotFoundException;
+import org.opensearch.test.OpenSearchIntegTestCase;
+
+@OpenSearchIntegTestCase.ClusterScope(scope = OpenSearchIntegTestCase.Scope.SUITE, numDataNodes = 2)
+public class GetModelITTests extends MLCommonsIntegTestCase {
+    private String irisIndexName;
+
+    @Rule
+    public ExpectedException exceptionRule = ExpectedException.none();
+
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+        irisIndexName = "iris_data_for_model_it";
+        loadIrisData(irisIndexName);
+    }
+
+    public void testGetModel_IndexNotFound() {
+        exceptionRule.expect(MLResourceNotFoundException.class);
+        MLModel model = getModel("test_id");
+    }
+
+    public void testGetModel_NullModelIdException() {
+        exceptionRule.expect(ActionRequestValidationException.class);
+        MLModel model = getModel(null);
+    }
+}

plugin/src/test/java/org/opensearch/ml/action/models/GetModelTransportActionTests.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.opensearch.ml.action.models;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.*;
+
+import java.io.IOException;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.rules.ExpectedException;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.opensearch.action.ActionListener;
+import org.opensearch.action.get.GetResponse;
+import org.opensearch.action.support.ActionFilters;
+import org.opensearch.client.Client;
+import org.opensearch.common.settings.Settings;
+import org.opensearch.common.util.concurrent.ThreadContext;
+import org.opensearch.common.xcontent.NamedXContentRegistry;
+import org.opensearch.ml.common.transport.model.MLModelGetRequest;
+import org.opensearch.ml.common.transport.model.MLModelGetResponse;
+import org.opensearch.test.OpenSearchTestCase;
+import org.opensearch.threadpool.ThreadPool;
+import org.opensearch.transport.TransportService;
+
+public class GetModelTransportActionTests extends OpenSearchTestCase {
+    @Mock
+    ThreadPool threadPool;
+
+    @Mock
+    Client client;
+
+    @Mock
+    NamedXContentRegistry xContentRegistry;
+
+    @Mock
+    TransportService transportService;
+
+    @Mock
+    ActionFilters actionFilters;
+
+    @Mock
+    ActionListener<MLModelGetResponse> actionListener;
+
+    @Rule
+    public ExpectedException exceptionRule = ExpectedException.none();
+
+    GetModelTransportAction getModelTransportAction;
+    MLModelGetRequest mlModelGetRequest;
+    ThreadContext threadContext;
+
+    @Before
+    public void setup() throws IOException {
+        MockitoAnnotations.openMocks(this);
+        mlModelGetRequest = MLModelGetRequest.builder().modelId("test_id").build();
+
+        getModelTransportAction = spy(new GetModelTransportAction(transportService, actionFilters, client, xContentRegistry));
+
+        Settings settings = Settings.builder().build();
+        threadContext = new ThreadContext(settings);
+        when(client.threadPool()).thenReturn(threadPool);
+        when(threadPool.getThreadContext()).thenReturn(threadContext);
+    }
+
+    public void testGetModel_NullResponse() {
+        doAnswer(invocation -> {
+            ActionListener<GetResponse> listener = invocation.getArgument(1);
+            listener.onResponse(null);
+            return null;
+        }).when(client).get(any(), any());
+        getModelTransportAction.doExecute(null, mlModelGetRequest, actionListener);
+        ArgumentCaptor<Exception> argumentCaptor = ArgumentCaptor.forClass(Exception.class);
+        verify(actionListener).onFailure(argumentCaptor.capture());
+        assertEquals("Fail to find model", argumentCaptor.getValue().getMessage());
+    }
+
+    public void testGetModel_RuntimeException() {
+        doAnswer(invocation -> {
+            ActionListener<GetResponse> listener = invocation.getArgument(1);
+            listener.onFailure(new RuntimeException("errorMessage"));
+            return null;
+        }).when(client).get(any(), any());
+        getModelTransportAction.doExecute(null, mlModelGetRequest, actionListener);
+        ArgumentCaptor<Exception> argumentCaptor = ArgumentCaptor.forClass(Exception.class);
+        verify(actionListener).onFailure(argumentCaptor.capture());
+        assertEquals("errorMessage", argumentCaptor.getValue().getMessage());
+    }
+}

plugin/src/test/java/org/opensearch/ml/action/models/SearchModelTransportActionTests.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.opensearch.ml.action.models;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import org.junit.Before;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.opensearch.action.ActionListener;
+import org.opensearch.action.search.SearchRequest;
+import org.opensearch.action.search.SearchResponse;
+import org.opensearch.action.support.ActionFilters;
+import org.opensearch.client.Client;
+import org.opensearch.common.xcontent.NamedXContentRegistry;
+import org.opensearch.ml.action.handler.MLSearchHandler;
+import org.opensearch.test.OpenSearchTestCase;
+import org.opensearch.transport.TransportService;
+
+public class SearchModelTransportActionTests extends OpenSearchTestCase {
+    @Mock
+    Client client;
+
+    @Mock
+    NamedXContentRegistry namedXContentRegistry;
+
+    @Mock
+    TransportService transportService;
+
+    @Mock
+    ActionFilters actionFilters;
+
+    @Mock
+    SearchRequest searchRequest;
+
+    @Mock
+    ActionListener<SearchResponse> actionListener;
+
+    MLSearchHandler mlSearchHandler;
+    SearchModelTransportAction searchModelTransportAction;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.openMocks(this);
+        mlSearchHandler = spy(new MLSearchHandler(client, namedXContentRegistry));
+        searchModelTransportAction = new SearchModelTransportAction(transportService, actionFilters, mlSearchHandler);
+    }
+
+    public void test_DoExecute() {
+        searchModelTransportAction.doExecute(null, searchRequest, actionListener);
+        verify(mlSearchHandler).search(searchRequest, actionListener);
+    }
+}