Added unit tests for athena-sqlserver. (#3183)

Co-authored-by: Jithendar12 <jithendar.vallepu@trianz.com>
Co-authored-by: Fal Bharadwaj <falgunb@amazon.com>

Author: 3 people

athena-sqlserver/src/test/java/com/amazonaws/athena/connectors/sqlserver/SqlServerEnvironmentPropertiesTest.java

@@ -0,0 +1,123 @@
+/*-
+ * #%L
+ * athena-sqlserver
+ * %%
+ * Copyright (C) 2019 - 2025 Amazon Web Services
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+package com.amazonaws.athena.connectors.sqlserver;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import static com.amazonaws.athena.connector.lambda.connection.EnvironmentConstants.DATABASE;
+import static com.amazonaws.athena.connector.lambda.connection.EnvironmentConstants.DEFAULT;
+import static com.amazonaws.athena.connector.lambda.connection.EnvironmentConstants.HOST;
+import static com.amazonaws.athena.connector.lambda.connection.EnvironmentConstants.PORT;
+import static com.amazonaws.athena.connector.lambda.connection.EnvironmentConstants.SECRET_NAME;
+import static org.junit.Assert.assertEquals;
+
+public class SqlServerEnvironmentPropertiesTest
+{
+    private Map<String, String> connectionProperties;
+    private SqlServerEnvironmentProperties sqlServerEnvironmentProperties;
+
+    @Before
+    public void setUp()
+    {
+        connectionProperties = new HashMap<>();
+        connectionProperties.put(HOST, "test.sqlserver.com");
+        connectionProperties.put(PORT, "1433");
+        connectionProperties.put(DATABASE, "testdb");
+        connectionProperties.put(SECRET_NAME, "sqlserver-secret");
+
+        sqlServerEnvironmentProperties = new SqlServerEnvironmentProperties();
+    }
+
+    @Test
+    public void connectionPropertiesToEnvironment_WithValidProperties_ReturnsExpectedConnectionString()
+    {
+        Map<String, String> sqlServerConnectionProperties = sqlServerEnvironmentProperties.connectionPropertiesToEnvironment(connectionProperties);
+
+        String expectedConnectionString = "sqlserver://jdbc:sqlserver://test.sqlserver.com:1433;databaseName=testdb;${sqlserver-secret}";
+        assertEquals(expectedConnectionString, sqlServerConnectionProperties.get(DEFAULT));
+    }
+    
+    @Test
+    public void getDelimiter_WithDefaultConfiguration_ReturnsSemicolonDelimiter()
+    {
+        assertEquals(";", sqlServerEnvironmentProperties.getDelimiter());
+    }
+    
+    @Test
+    public void getConnectionStringPrefix_WithValidProperties_ReturnsPrefix()
+    {
+        assertEquals("sqlserver://jdbc:sqlserver://", sqlServerEnvironmentProperties.getConnectionStringPrefix(connectionProperties));
+    }
+    
+    @Test
+    public void getJdbcParametersSeparator_WithDefaultConfiguration_ReturnsSemicolonSeparator()
+    {
+        assertEquals(";", sqlServerEnvironmentProperties.getJdbcParametersSeparator());
+    }
+    
+    @Test(expected = NullPointerException.class)
+    public void connectionPropertiesToEnvironment_WithNullProperties_ThrowsNullPointerException()
+    {
+        sqlServerEnvironmentProperties.connectionPropertiesToEnvironment(null);
+    }
+
+    @Test
+    public void connectionPropertiesToEnvironment_WithEmptyProperties_ReturnsConnectionStringWithNulls()
+    {
+        Map<String, String> sqlServerConnectionProperties = sqlServerEnvironmentProperties.connectionPropertiesToEnvironment(new HashMap<>());
+
+        String expectedConnectionString = "sqlserver://jdbc:sqlserver://null:null;databaseName=null;";
+        assertEquals(expectedConnectionString, sqlServerConnectionProperties.get(DEFAULT));
+    }
+
+    @Test
+    public void connectionPropertiesToEnvironment_WithMissingHost_ReturnsConnectionStringWithNullHost()
+    {
+        connectionProperties.remove(HOST);
+        Map<String, String> sqlServerConnectionProperties = sqlServerEnvironmentProperties.connectionPropertiesToEnvironment(connectionProperties);
+
+        String expectedConnectionString = "sqlserver://jdbc:sqlserver://null:1433;databaseName=testdb;${sqlserver-secret}";
+        assertEquals(expectedConnectionString, sqlServerConnectionProperties.get(DEFAULT));
+    }
+
+    @Test
+    public void connectionPropertiesToEnvironment_WithMissingPort_ReturnsConnectionStringWithNullPort()
+    {
+        connectionProperties.remove(PORT);
+        Map<String, String> sqlServerConnectionProperties = sqlServerEnvironmentProperties.connectionPropertiesToEnvironment(connectionProperties);
+
+        String expectedConnectionString = "sqlserver://jdbc:sqlserver://test.sqlserver.com:null;databaseName=testdb;${sqlserver-secret}";
+        assertEquals(expectedConnectionString, sqlServerConnectionProperties.get(DEFAULT));
+    }
+
+    @Test
+    public void connectionPropertiesToEnvironment_WithMissingDatabase_ReturnsConnectionStringWithNullDatabase()
+    {
+        connectionProperties.remove(DATABASE);
+        Map<String, String> sqlServerConnectionProperties = sqlServerEnvironmentProperties.connectionPropertiesToEnvironment(connectionProperties);
+
+        String expectedConnectionString = "sqlserver://jdbc:sqlserver://test.sqlserver.com:1433;databaseName=null;${sqlserver-secret}";
+        assertEquals(expectedConnectionString, sqlServerConnectionProperties.get(DEFAULT));
+    }
+}