Add unit tests

persistence-modules/spring-persistence-simple-2/src/test/java/com/baeldung/jndi/datasource/SimpleJNDIUnitTest.java

@@ -0,0 +1,37 @@
+package com.baeldung.jndi.datasource;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.sql.DataSource;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class SimpleJNDIUnitTest {
+
+    private InitialContext initContext;
+
+    @BeforeEach
+    public void setup() throws Exception {
+        System.setProperty("java.naming.factory.initial", "org.osjava.sj.SimpleContextFactory");
+        System.setProperty("org.osjava.sj.root", "file://src/test/resources");
+        System.setProperty("org.osjava.sj.delimiter", ".");
+        System.setProperty("jndi.syntax.separator", "/");
+        System.setProperty("org.osjava.sj.space", "java:/comp/env");
+
+        this.initContext = new InitialContext();
+    }
+
+    @Test
+    public void whenMockJndiDataSource_thenReturnJndiDataSource() throws Exception {
+        String dsString = "org.h2.Driver::::jdbc:jdbc:h2:mem:testdb::::sa";
+
+        Context envContext = (Context) this.initContext.lookup("java:/comp/env");
+        DataSource ds = (DataSource) envContext.lookup("datasource/ds");
+
+        assertEquals(dsString, ds.toString());
+    }
+
+}

persistence-modules/spring-persistence-simple-2/src/test/java/com/baeldung/jndi/datasource/SimpleNamingContextBuilderUnitTest.java

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+package com.baeldung.jndi.datasource;
+
+import static org.junit.Assert.assertNotNull;
+
+import javax.naming.InitialContext;
+import javax.sql.DataSource;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.jdbc.datasource.DriverManagerDataSource;
+import org.springframework.mock.jndi.SimpleNamingContextBuilder;
+
+@SuppressWarnings("deprecation")
+public class SimpleNamingContextBuilderUnitTest {
+
+    private InitialContext initContext;
+
+    @BeforeEach
+    public void init() throws Exception {
+        SimpleNamingContextBuilder.emptyActivatedContextBuilder();
+        this.initContext = new InitialContext();
+    }
+
+    @Test
+    public void whenMockJndiDataSource_thenReturnJndiDataSource() throws Exception {
+        this.initContext.bind("java:comp/env/jdbc/datasource", new DriverManagerDataSource("jdbc:h2:mem:testdb"));
+        DataSource ds = (DataSource) this.initContext.lookup("java:comp/env/jdbc/datasource");
+
+        assertNotNull(ds.getConnection());
+    }
+
+}