How To Write Test Case For Catch Exception In Junit Mockito

The first thing we have to do on our Java…. 0-M1 release of July 7). In JUnit 5 all the assertions are present at org. The requirements to define a test class are that the class must be public and contain a no argument constructor. perhaps? i think this way is legit as well, just a personal preference. But you can verify if methods on your mock object are invoked using verify method. Here they are some ideas about testing using the different tools given by Spring Boot Test dependency. The static method fail() is part of the Assert class; optionally you can pass in a message as a parameter, so it will be displayed if the test case fails. TestCase test = new MathTest("testAdd"); test. org community. We use doNothing() method from Mockito framework when we write Junit test case on void method. A Guide to Mocking With Mockito please check out an earlier post of mine on How to write great unit tests with JUnit. class) – Use “expected” paramater with @Test annotation for test cases that expect exception; Timeout: @Test(timeout = 1000) – timeout period in miliseconds with “timeout” parameter. 1: Selection of single test case in. Do not write your own catch blocks that exist only to pass a test. We will discuss how to test the exception in different versions of JUnit. unit-testing,maven,mockito,aspectj I have the following test class and I'm using Mockito's spy. In the Package Explorer area on the left side of the Eclipse window, right-click the class you want to test and click New → JUnit Test Case. To achieve this task of writing test cases for a class in isolation from the others, there are times when we need to mock some objects or data while writing our JUnit test cases. @DataJpaTest provides some standard setup needed for testing the persistence layer: configuring H2, an in-memory database. To learn more about the JUnit 5 extension model, have a look at this article. This unit test can't ensures the test condition is always the same, the data in the database may vary in time. Instead, use throws Exception statement in test case declaration itself. Also, in my opinion, any test involving JMS is not complete unless both the sender and the receiver are set up. In JUnit 5, to test exception cases you should use org. Let's assume the following setup: Our unit under test is the class Calculator which just delegates the addition of two integers to MathUtil which offers only static methods:. properties"); Step 2: In Hiberante Properties file or XML file you need to use dbcp Connection API as follows. JUnit is a unit testing framework for the Java programming language. That will be enough to understand the subject of the testing. saveEmployee will be called. For injecting Mockito Mocks into Spring Beans, we need to. In JUnit 3. Something like this @Test(expected = IndexOutOfBoundsException. /* ===== Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. In this case, we spy on the object we are creating. The following tutorial is based on an understanding of unit testing with the JUnit framework. * I declare that I agree to receive commercial and marketing information in electronic form, by phone from Compendium - Centrum Edukacyjne Spółka z o. Because the method with @BeforeClass will be executed only once before executing all the tests and at the end of the execution @AfterClass will be executed. Mockito is industry wide mocking framework for unit test. 0 SDK are improving. It also represents unit testing naming convention where features text is used for naming the test methods thereby representing test class as alternate documentation for the class under test. Mockito - Exception Handling - Mockito provides the capability to a mock to throw exceptions, so exception handling can be tested. gradle file. Compile the Test case and Test Runner classes using javac. xml file looks as follows: Note: If you have to use Spring Framework 3. In this tutorial, we will understand how to write JUnit test cases. For example, imagine that you want to mock a method expecting an object of type Foo as a parameter to do something regardless of what particu. - Michel Jung May 4 '17 at 14:52. Why do you care what the mocked service does, since (apart from throwing an exception, which is possibly something worth testing how your instance-under-test handles that) it does nothing that can affect thething you are testing. JUnit execution sequence. The search pattern can be anything from a simple character, a fixed string or a complex expression containing special characters describing the pattern. In this unit test, we want to test only the methods in StudentController. It validates if that code results in. Test annotation. *FREE* shipping on qualifying offers. This tutorial will help you learn how to write effective unit tests for your software with the Mockito framework as part of Test Driven Development and DevOps. We can test if the file not found exception is thrown in a number of ways. Mockito is used to mock interfaces so that a dummy functionality can be added to a mock interface that can be used in unit testing. The caught exception will not fail the test case, so we get a green bar. assertNotNull(). JUnit是单元测试框架。Mockito与JUnit不同,并不是单元测试框架(这方面JUnit已经足够好了),它是用于生成模拟对象或者直接点说,就是”假对象“的工具。两者定位不同,所以一般通常的做法就 博文 来自: weixin_33725239的博客. Assert the exception object with Assert. This tutorial will help you learn how to write effective unit tests for your software with the Mockito framework as part of Test Driven Development and DevOps. Recently I've been asked "how do you get started writing unit tests?" I had to give great thought to the question. Run your Junit 4 tests in Junit 3 test runners. Spring Batch Unit Testing and Mockito Jonny Hackett February 23, 2012 Java , Spring , Spring Batch , Technology Snapshot , Testing 9 Comments I have a huge fascination with reality TV shows in which something is created. Every application that is created by a developer has to be tested for its functionality. @RunWith(SpringRunner. The classic engine can be used to run your old Junit 4 tests. If an exception is thrown, we are handling it with an empty catch block. JUnit has a better mocking framework support such as Mockito, which offers a custom JUnit 4 runner. The above approach is useful for simple cases, but it has its limits. 2 JMockit (Java) There are a number of popular mocking frameworks for Java: JMock, EasyMock, Mockito. * This build file was auto generated by running the Gradle 'init' task * by 'alex' at '1/27/15 7:02 PM' with Gradle 2. Steps to write junit test cases for void method in java. Use this if you only want to test the exception type, refer below :. I tried to write the test case for createEmployee -- Exception after spying. In this post, I am writing a sample test case which expects exceptions to be thrown on runtime. Junit4 provides an easy and readable way for exception testing, you can use Optional parameter (expected) of @test annotation and To trace the information ,"fail()" can be. Deeper Testing of the Exception. In the unit test. Unit tests should not catch exceptions just to call fail(). If you're new to JUnit, here's a useful cheat sheet about JUnit 5 annotations and how to use them. With Mockito, you can test all of the above scenarios. unit-testing,maven,mockito,aspectj I have the following test class and I'm using Mockito's spy. Testing Databases with JUnit and Hibernate Part 1: One to Rule them We will describe some problems and possible solutions based on Hibernate and JUnit. I'm not so sure how to write the correct junit test. It’s time to see how unit tests with Mockito look like. We test crud operations with corresponding GET, PUT, POST and DELETE request methods. Syntax of Junit 5 assertThrows() It asserts that execution of the supplied executable throws an exception of the expectedType and returns the exception. Testing Custom Exceptions With JUnit's ExpectedException and @Rule expected behavior and then catch the exception looking for the specific type. But you'll get closer faster by: reading each step alone, ignoring the context of the scenario title, feature file name, and feature file location. The right way is to write a method that causes the exception to be thrown and make observation of the exception being thrown the success criterion. txt) or read online for free. In Mockito, we mock behavior, not implementation by adding a dummy functionality to a mock interface that can be used in unit testing. When divide encounters a divide by zero, the program should throw an exception. 1 * * This generated file contains a commented-out sample Java project to get you started. 胖鸭 i think this way is legit as well, just a personal preference. You could use one of the following: If possible use an in memmory database like hsqldb, which you can re-create or setup suitably for each TestSuite/TestCase If the methods under test are transactional, run the test case with spring junit rollback true If you cannot use 1 or 2. I agree that it still isn't a major issue, but if we can make it better, it would be stupid to not do it. Tatarska 5, 30-103 Kraków on the terms set out in the. Catch-Exception. You can create mocks, stubs, make verifications and all this with the help of clear API. Mockito's @Spy allows the test to only implement the 2 or 3 methods of interest and leave the rest abstract:. Besides, that's no way to test whether or not a catch block was exercised. So I have to mockup the EjbUtil. That will be enough to understand the subject of the testing. * I declare that I agree to receive commercial and marketing information in electronic form, by phone from Compendium - Centrum Edukacyjne Spółka z o. In this case, we wanted to check that our Spring configuration was wiring up properly. MFMETA-INF/LICENSEorg/apache/sling/maven/slingstart/BuildConstants. Hadoop MapReduce jobs have a unique code architecture that raises interesting issues for test-driven development. 18 Apache Sling JUnit Tests Teleporter Client-side implementation of the Teleporter. Now days every IDE comes with the inbuilt support of JUnit Exception in catch. x and JUnit5. In this blog, I am going to explain you about how to mock a static method of a class which we are using in the test class for which we are writing the test case. Moreover, in this case the test class must be public; otherwise, IDEs won't recognize it as a test class. but that breaks the rule of only asserting once since I'm asserting that HandleMessage throws an exception (which has its own test case) and then verifying mock. TestCase test = new MathTest("testAdd"); test. You might have cut down your code too much for posting purposes. JUnit Tutorial 06 :- Testing Exceptions using JUnit Tech Freak Writing JUnit Tests using JUnit. Here we will create a Math Application which uses CalculatorService to perform basic m. When I run this I get:. You could read more about exceptions testing in JUnit4 wiki for Exception testing and bad. A Java unit test should verify correct exception thrown in exceptional case and no exception should be thrown in normal case. Then, we can use this custom runner in our test class with @RunWith annotation. txt) or view presentation slides online. I would support the idea to call Thread. So global definitions will make your feature. Of course, if you need to test for multiple exceptions within the same test method, the first way won't work. The real power of Spock appears if you want to write some more complex test and exercise the same test many times with different input data and expected results. I have a function/method which throws some exception when database is being called. 2 JMockit (Java) There are a number of popular mocking frameworks for Java: JMock, EasyMock, Mockito. JUnit tutorial provides basic and advanced concepts of unit testing in java with examples. Unit Testing With Mockito - DZone DevOps. I want to start with unit test for each layer starting with controller. This can be done via multiple ways but I will go over one. assertEquals("expected exception message", expected. S Tested with JUnit 4. The main problem with fakes is that they require more code than you may want to write: HttpServletRequest has like 30 or 40 methods to implement, among which only 2 or 3 methods are relevant to the test. Compile the Test case and Test Runner classes using javac. * Behavior Driven Development style of writing tests uses //given //when //then comments as fundamental parts of your test methods. bazı kodun bir istisna attığını test etmek için JUnit4 deyimini nasıl kullanabilirim? kesinlikle böyle bir şe unu hatırlıyorum. gradle file. xml to start writing unit test cases. In the Package Explorer area on the left side of the Eclipse window, right-click the class you want to test and click New → JUnit Test Case. There is no assertThat method in JUnit 5. Java Unit Testing - Free download as PDF File (. This tutorial shows how to Unit Test JPA with JUnit and a H2 In Memory Database Configure log4j for junit test. It uses Java as a programming platform, and it is an Open Source Software managed by the JUnit. methodCall(). The following is the code:. Then, we can use this custom runner in our test class with @RunWith annotation. It explains the creation of JUnit tests. I'm not necessarily looking for someone to whip up code for this. This method is used to assert that the supplied executable will throw an exception of the expectedType. Something like this @Test(expected = IndexOutOfBoundsException. Learn Unit Testing with Junit & Mockito in 30 Steps 4. These examples are extracted from open source projects. Go to File -> New -> Junit Test Cases. A test case is a document that describes an input, action, or event and an expected response, to determine if a feature of an application is working correctly What is a testing framework? A test framework provides reusable test functionality which is easier to use (e. Project Management Content Management System (CMS) Task Management Project Portfolio Management Time Tracking PDF. Catch the expected exception object. txt) or view presentation slides online. There are other ways for junit 5 exception testing, but I will suggest to avoid them. Definitely with the help of Mockito you can do everything you wish in the testing. This tutorial explains unit testing with JUnit 4. Required fields are marked *. The first part of this tutorial described how we can configure our unit tests which use the Spring MVC Test framework. JUnit test suite. Although the techniques described in those blog posts are useful, the problem is that our assertions were not very elegant. 11 at the time of writing), there are two more options available to you: the @Test annotation and the ExpectedException rule. A unit test should test functionality in isolation. The canonical reference for building a production grade API with Spring. This is shorter than a try catch with a fail in the body. Indeed, I don't see where you are injecting the mock MemoryCache into your test. Whenever we are using any Spring Boot testing features in our JUnit tests, this annotation will be required. You might have cut down your code too much for posting purposes. Use this if you only want to test the exception type, refer below :. It is useful for Java Developers to write and run repeatable tests. Remove the try-catch block and add throws Exception to your test method, like: @Test public final void testZero() throws Exception { assertEquals("zero", service. In your test you have commented out the line that returns the mock FileStatus. 0-M1 release of July 7). throwing an exception, is so trivial that we don't even need Mockito for the respective test method. As you can see from this old example, many of the lines in the test case are just to support the lack of functionality present to specifically test exception handling. so if you keep that in. You need to test that the exception attribute of the model is an instance of NullPointerException. Methods that are used in a JUnit test:. See how we have captured the exception. JUnit 5 has trimmed down assertions support. A test runner either expects a static method suite as the. It doesn't matter what kind of tests/class/interface I use, I get pretty much the same exception. You can test whether the code throws a desired exception or not. You do this with JUnit's @Test annotation by adding the "expected" value:. JUnit provides convenient way for this. Since withdrawal was successful, we verify that accountManager. 2 Try/Catch Idiom To address this you can use the try/catch idiom which prevailed in JUnit 3. With just couple of lines of code, one can build quite cool code for testing exceptions in JUnit without any additional library. This test doesn't actually use mockito because the exception is thrown in the service and not the DAO. JUnit has been important in the development of test-driven development, and is one of a family of unit testing frameworks which is collectively known as xUnit. Why do you care what the mocked service does, since (apart from throwing an exception, which is possibly something worth testing how your instance-under-test handles that) it does nothing that can affect thething you are testing. The expected parameter is u. A software test is a piece of software, which executes another piece of software. In this example, we. You could read more about exceptions testing in JUnit4 wiki for Exception testing and bad. testing - How to approach integration tests that create new data. Don't worry if you're unfamiliar with PowerMock or EasyMock at this time. We will explore this a bit further. In this tutorial, we will learn the concept of Mocks and Spies in Mockito. In order to explain the title problem better, I shall start by answering the question of when and why to test negative cases. You might have cut down your code too much for posting purposes. I want to start with unit test for each layer starting with controller.      This article explains how to build application with pagination and data sorting using only JSP and Servlets. Such naming is especially helpful if you write. spring-boot-starter-test: Spring Boot Test Framework with libraries including JUnit, Mockito etc. catch-exception is a library which catches exceptions and makes them available for further analysis. JUnit has a better mocking framework support such as Mockito, which offers a custom JUnit 4 runner. Still, it's quite useful. This would be an incorrect test case. JUnit is considered the standard unit testing framework to test Java applications. This post is part of PowerMock series examples. As the name. name", "hibernate_junit. Today we will see how to implement MR Unit testing to test our MR Programs on HDP 2. interrupted() on each thread that is reused for more than one test case just before executing a new test case. I want to verify that a given method of my code will actually throw an exception. You're not passing anything in. Getting the Required Dependencies with Maven We can get the required dependencies by declaring the following testing dependencies in our pom. TestNG Mockito Example Stubbing Void Methods. Each one of those asserts should be in its own test with a method name describing the test. A test method might care about Map. getMessage()) To check that exception was thrown for a right reason. JUnit 5 has trimmed down assertions support. It doesn't matter what kind of tests/class/interface I use, I get pretty much the same exception. Mockito is an open source framework to create Mock in the automated drive test in Java environment. We can add this listener by creating a custom Runner. Hi Guys, In this I'm going to explain you about how to write unit test cases in java with junit and mockito framework. 1, you can write unit tests for your. * Behavior Driven Development style of writing tests uses //given //when //then comments as fundamental parts of your test methods. JUnit has a better mocking framework support such as Mockito, which offers a custom JUnit 4 runner. Now we are going to unit test a factory method. */ Feature getFeature(ArtifactId artifact) throws IOException;}. As the name Mockito suggests, it is a framework that allows us to do just that. Test Exception in JUnit 5 - using assertThrows() method JUnit 5 provides the assertThrows() method that asserts a piece of code throws an exception of an expected type and returns the exception: assertThrows(Class expectedType, Executable executable, String message). 2 JMockit (Java) There are a number of popular mocking frameworks for Java: JMock, EasyMock, Mockito. Steps to write junit test cases for void method in java. Tatarska 5, 30-103 Kraków to the above e-mail address, telephone number and to process the personal data provided in the Compendium database - Centrum Edukacyjne Spółka z o. There are two ways of writing test case. I'm not so sure how to write the correct junit test. The assertThrows() method enables more fine-grained control for exception assertion logic because we can use it around specific parts of the code. The following tutorial is based on an understanding of unit testing with the JUnit framework. In fact, it's totally fine for all unit tests to declare Exception since the test method is (should!) never called from anywhere except the test framework. but it is also nice to mention that this might "catch" all exceptions of that type within your test and sometimes it will be more accurate to catch the exception inside the test around a specific method call, where you expect the exception to occur. Unit Testing With Mockito - DZone DevOps. The test fails when the timeout period exceeds. attribute( Exception-handling - Mockito Expect an Exception. Maybe some tips are not consider as the best practices by the Spring Boot, Mockito, EasyMock and/or TDD folllowers but for me and my team they are so useful when we write and run the Unit Test for medium or high complexity classes.      This article explains how to build application with pagination and data sorting using only JSP and Servlets. (junit and mockito) are updated and these libraries update the version of hamcrest library, we would still be forcing to use a backward. The test is completed with the verify directive that checks whether our database ID is indeed sent to the logger. Citrus works with Java and uses the well known JUnit and TestNG framework benefits that you may be used to as a tester. Creating JUnit test cases by Jamie Scheinblum in Developer on March 14, 2002, 12:00 AM PST Automated testing tools like JUnit make it easier to perform regular, reliable unit testing. JUnit Interview Questions: JUnit is a testing framework for unit testing. This tutorial helps you get started with JUnit - one of the most popular unit testing frameworks for Java application development. Pleasingly, we came across a library called Springockito. One area one could investigate to check the validity of the tests is mutation testing with tools such as PIT. Basics of JUnit in Android Jul 12, 2012 About This Article This article provides information about how to use JUnit testcases in Android applications to test the application. By leveraging its database, Sonar not only allows to combine metrics altogether but also to mix them with historical measures. For Java and JUnit, there are at least two that do their job properly: Jester works on the source code while Jumble uses the bytecode. Mockito & JUnit tests. Java Examples for junit. If any method in test code throws some exception then do not write a catch block only to catch the exception and fail the test case. Chapter No. JUnit is considered the standard unit testing framework to test Java applications. This page is a list of tables of code-driven unit testing frameworks for various programming languages. Mockito Spy and Mocks Tutorial: In this Mockito Tutorial series, our previous tutorial gave us an Introduction to Mockito Framework. java/* * Licensed to the Apache Software Foundation (ASF) under one or more. JUnit 5 distinguishes between different versions based on the annotation present on the test case. You can run this test by clicking the green icon located next to the method name. A @TestTemplate method is not a regular test case but rather a template for test cases. Here they are some ideas about testing using the different tools given by Spring Boot Test dependency. A Java unit test should verify correct exception thrown in exceptional case and no exception should be thrown in normal case. Because the method with @BeforeClass will be executed only once before executing all the tests and at the end of the execution @AfterClass will be executed. Test RESTful Web Service with JUnit and Mockito Earlier I've published a blog post on now to create a RESTful Web Service(JAX-RS) to accept JSON payload with user profile details and how to save user profile details into a MySQL database using Java Hibernate framework. What is JUnit? What is Mockito? How to create a simple Spring Boot project with Unit Testing? How to write unit tests with Mockito using @Mock and @InjectMocks without launching up a Spring Context? How to write a unit test with mocking and launching up the complete Spring Context using @MockBean? Recommended Unit Testing Courses. There is no assertThat method in JUnit 5. The following tutorial is based on an understanding of unit testing with the JUnit framework. Im just not sure how to effectively test this method. A unit test should test functionality in isolation. JUnit 5 Test method. Testing Databases with JUnit and Hibernate Part 1: One to Rule them We will describe some problems and possible solutions based on Hibernate and JUnit. [testng-dev] assertThrows(myObject). When divide encounters a divide by zero, the program should throw an exception. ChefService chefServiceMock. Please can any one write a sample JUnit for below code. Testing Custom Exceptions With JUnit's ExpectedException and @Rule expected behavior and then catch the exception looking for the specific type. To achieve this task of writing test cases for a class in isolation from the others, there are times when we need to mock some objects or data while writing our JUnit test cases. It also covers the usage of the Eclipse IDE for developing software tests. Steps to write junit test cases for void method in java. Hi, I have many test cases that expect an exception to be thrown. In this tutorial, we will learn the concept of Mocks and Spies in Mockito. Powermock - A Brief Introduction. A continuación se muestra una pueba de concepto usando PowerMock para extender Mockito en un entorno de test JUnit4. In this method we are removing an element which is not present in the list. The static method fail() is part of the Assert class; optionally you can pass in a message as a parameter, so it will be displayed if the test case fails. As explained in the earlier article, steps to write unit test cases are similar. Ploblem Solved: Cucumber-JVM running actions before and after tests execution with JUnit catch (Exception e) command line you don't need to run the JUnit test. By running my unit test using Eclipse (right click->Run as unit test) all tests pass which means that eclipse build process using m2e and AJDT works fine. Consider the following example where a Calculator program has a divide method. Configure log4j for junit test. I am specialized on Java technologies, MarkLogic, XQuery, XML and Alfresco. The platform also defines an SPI for test engines, where those test engines actually define the API to write a test. In this quick tutorial - we'll focus on how to configure a method call to throw an exception with Mockito. Methods that are used in a JUnit test:. Basics of JUnit in Android Jul 12, 2012 About This Article This article provides information about how to use JUnit testcases in Android applications to test the application. I have a problem with the Mocking Framework Mockito. Let's assume the following setup: Our unit under test is the class Calculator which just delegates the addition of two integers to MathUtil which offers only static methods:. testRemoveException() is used to test the exception thrown by the method. method // method that I want to fake the return value // some code that I still want to run } } Is there any way in Mockito to stub the result of class2. It takes two integers, divides, and returns a result. This tutorial will help you learn how to write effective unit tests for your software with the Mockito framework as part of Test Driven Development and DevOps. In all the above methods i'm unable to pass the test cases,and i have seen these solutions but they are not useful for me. Config class has a static method called //getProperty which reads the values from the environment specific property file. Hibernate Classes also should be tested as normal classes, with exception of passing the hibernate Properties files as follows. That, but I think that is just personal preference:. Please note that the test methods in the following example are annotated with org. It's useful when we want to use the mocked object at multiple places because we avoid calling mock() method multiple times. Expectation: connection manager used, exception is caught, a new MyAppException is thrown, and connection is closed. It doesn't matter what kind of tests/class/interface I use, I get pretty much the same exception. Don't be too shy about coding a simple test case for a minor thing. It gives an ability to a developer to write his/her code without depending on other developer’s code. interrupted() on each thread that is reused for more than one test case just before executing a new test case. PowerMock is a JUnit extension the leverages the possibilities of EasyMock and Mockito to mock static methods (and much more). MessagingException is not thrown I have a method which will send a text mail using JavaMail API and I am trying to write a test case for this method which will check if an Exception of type. When you narrow down the "unit" to be the basic object-oriented element—i. Because the method with @BeforeClass will be executed only once before executing all the tests and at the end of the execution @AfterClass will be executed. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: