Added tests for count

persistence-modules/spring-jooq/src/test/java/com/baeldung/jooq/introduction/CountQueryIntegrationTest.java

@@ -0,0 +1,46 @@
+package com.baeldung.jooq.introduction;
+
+import static com.baeldung.jooq.introduction.db.public_.tables.Author.AUTHOR;
+
+import org.jooq.DSLContext;
+import org.jooq.impl.DSL;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.transaction.annotation.Transactional;
+
+@ContextConfiguration(classes = PersistenceContextIntegrationTest.class)
+@Transactional(transactionManager = "transactionManager")
+@RunWith(SpringJUnit4ClassRunner.class)
+public class CountQueryIntegrationTest {
+    
+    @Autowired
+    private DSLContext dsl;
+    
+    @Test
+    public void givenValidData_whenSimpleSelect_thenSucceed() {
+        int count = dsl.select().from(AUTHOR).execute();
+        Assert.assertEquals(3, count);
+    }
+    
+    @Test
+    public void givenValidData_whenSelectCount_thenSucceed() {
+        int count = dsl.selectCount().from(AUTHOR).fetchOne(0, int.class);
+        Assert.assertEquals(3, count);
+    }
+    
+    @Test
+    public void givenValidData_whenCount_thenSucceed() {
+        int count = dsl.select(DSL.count()).from(AUTHOR).fetchOne(0, int.class);
+        Assert.assertEquals(3, count);
+    }
+    
+    @Test
+    public void givenValidData_whenFetchCount_thenSucceed() {
+        int count = dsl.fetchCount(DSL.selectFrom(AUTHOR));
+        Assert.assertEquals(3, count);
+    }
+}