#566 - Refactor internals - SpiExpression, add prepareExpression() to merge queryAutoTuneHash() and queryPlanHash() - sameByPlan() & sameByBind()

src/test/java/com/avaje/ebeaninternal/server/expression/NoopExpressionTest.java

@@ -0,0 +1,68 @@
+package com.avaje.ebeaninternal.server.expression;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import com.avaje.ebean.Query;
+import com.avaje.tests.model.basic.Customer;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+
+public class NoopExpressionTest extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    Query<Customer> query = Ebean.find(Customer.class)
+        .select("id")
+        .where().add(NoopExpression.INSTANCE)
+        .query();
+
+    query.findList();
+    String generatedSql = query.getGeneratedSql();
+
+    assertThat(generatedSql).contains("select t0.id c0 from o_customer t0 where 1=1");
+  }
+
+  @Test
+  public void test_withPreAndPost() {
+
+    Query<Customer> query = Ebean.find(Customer.class)
+        .select("id")
+        .where().eq("name", null)
+        .add(NoopExpression.INSTANCE)
+        .ne("status", null)
+        .query();
+
+    query.findList();
+    String generatedSql = query.getGeneratedSql();
+
+    assertThat(generatedSql).contains("select t0.id c0 from o_customer t0 where t0.name is null  and 1=1 and t0.status is not null");
+  }
+
+  @Test
+  public void isSameByPlan_when_same() {
+
+    assertThat(new NoopExpression().isSameByPlan(new NoopExpression())).isTrue();
+  }
+
+  @Test
+  public void isSameByPlan_when_diffExpressionType() {
+
+    assertThat(new NoopExpression().isSameByPlan(null)).isFalse();
+  }
+
+  @Test
+  public void isSameByBind_when_same() {
+
+    assertThat(new NoopExpression().isSameByBind(new NoopExpression())).isTrue();
+  }
+
+  @Test
+  public void isSameByBind_when_diffExpressionType() {
+
+    assertThat(new NoopExpression().isSameByBind(null)).isTrue();
+  }
+
+}