Add unit tests for com.zheng.common.util.Paginator

zheng-common/pom.xml

@@ -331,6 +331,30 @@
             <artifactId>jstl</artifactId>
             <version>1.2</version>
         </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-api-mockito</artifactId>
+            <version>1.6.5</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-module-junit4</artifactId>
+            <version>1.6.5</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-all</artifactId>
+            <version>1.10.19</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.diffblue</groupId>
+            <artifactId>deeptestutils</artifactId>
+            <version>1.9.0</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>

zheng-common/src/test/java/com/zheng/common/util/PaginatorTest.java

@@ -0,0 +1,62 @@
+package com.zheng.common.util;
+
+import static org.mockito.Matchers.anyDouble;
+import com.diffblue.deeptestutils.Reflector;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PowerMockIgnore;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+import java.lang.reflect.InvocationTargetException;
+
+@RunWith(PowerMockRunner.class)
+@PowerMockIgnore({"javax.management.*"})
+public class PaginatorTest {
+
+	/* testedClasses: Paginator */
+	@Test
+	public void initTotalPageOutputVoid() {
+		final Paginator paginator = new Paginator();
+		paginator.initTotalPage();
+		Assert.assertEquals(0L, paginator.getTotalPage());
+	}
+
+	@PrepareForTest({Paginator.class, Math.class})
+	@Test
+	public void getHtmlOutputNotNull() throws Exception,
+			InvocationTargetException {
+		PowerMockito.mockStatic(Math.class);
+		final Paginator paginator = new Paginator();
+		Reflector.setField(paginator, "total", 0L);
+		paginator.setStep(0);
+		paginator.setUrl(null);
+		paginator.setQuery(null);
+		paginator.setParam(null);
+		paginator.setPage(0);
+		paginator.setTotalPage(0L);
+		Reflector.setField(paginator, "rows", 2);
+		PowerMockito.when(Math.ceil(anyDouble()))
+				.thenReturn(-0x1.ffffffffffffep+31 /* -4.29497e+09 */);
+		Assert.assertEquals("", paginator.getHtml());
+	}
+
+	@Test
+	public void getHtmlOutputNotNull2() throws Exception,
+			InvocationTargetException {
+		PowerMockito.mockStatic(Math.class);
+		final Paginator paginator = new Paginator();
+		Reflector.setField(paginator, "total", 0L);
+		paginator.setStep(0);
+		paginator.setUrl(null);
+		paginator.setQuery("foo");
+		paginator.setParam("foo");
+		paginator.setPage(0);
+		paginator.setTotalPage(0L);
+		Reflector.setField(paginator, "rows", -786_432);
+		PowerMockito.when(Math.ceil(anyDouble()))
+				.thenReturn(-0x1.ffffffffffffep+31 /* -4.29497e+09 */);
+		Assert.assertEquals("", paginator.getHtml());
+	}
+}