In this post under JWT, I will show with example how to create and parse a signed JWT containing claims. As mentioned in previous posts we will use an instance of JwtBuilder to construct a JSON Web Token. Below is the code snippet for your reference Snippet 1 1 JwtBuilder jwtBuilder = Jwts.builder(); 2 3…… Continue reading Creating and Parsing a secret key signed JWT containing claims
AssertDoesNotThrow Example
In this post under JUnit, I will explain with example what is the purpose and how to use “AssertDoesNotThrow” assertion method. AssertDoesNotThrow takes an executable code and assert that the method doesn’t throw any exception during execution. Below is the javadoc of “assertDoesNotThrow” exception public static void assertDoesNotThrow​(Executable executable) Where “Executable” is a functional interface…… Continue reading AssertDoesNotThrow Example
Checking whether JWT is signed or unsigned
In this post under JJWT I will show with example how to check whether a JWT is signed or unsigned. JwtParser class has a “isSigned” method which will figure out whether the JWT is signed or not. All we need is to pass the test JWT string as an argument to this method. This method…… Continue reading Checking whether JWT is signed or unsigned
Assumptions in JUnit5
In this post under Junit5, I will show with example, how to use Assumptions feature. Sometimes test case assertions depend on certain conditions. If a condition is met, then test case should be asserted otherwise we should skip the assertion. To test whether the condition is met or not, we take the help of “assumeTrue”…… Continue reading Assumptions in JUnit5
Parsing simple unsigned JWT containing claims
In this post under JJWT, I will show with example how to parse a simple unsigned JSON Web Token containing claims as payload. Below is the complete main code. Main class 1 package defaultPackage; 2 import io.jsonwebtoken.Claims; 3 import io.jsonwebtoken.Header; 4 import io.jsonwebtoken.Jwt; 5 import io.jsonwebtoken.JwtParser; 6 import io.jsonwebtoken.JwtParserBuilder; 7 import io.jsonwebtoken.Jwts; 8 9 public…… Continue reading Parsing simple unsigned JWT containing claims
Creating a simple unsigned JSON Web Token containing claims
In this post under JJWT, I will explain how to create a simple unsigned JSON Web Token whose payload is a set of claims. I will be using JJWT framework for this example and all the upcoming examples under JJWT. Below is the complete code for your reference Main Class 1 package defaultPackage; 2 3…… Continue reading Creating a simple unsigned JSON Web Token containing claims
Disabling the tests
In this post under Junit 5, I will show how to disable a test method or all test methods of a class. Junit 5 added a new annotation named “Disabled” to disable a test method or all the test methods of a class. When applied at a particular method, that particular method is disabled. When…… Continue reading Disabling the tests
assertTrue and assertFalse with Supplier Interface
In this post under JUnit 5, I will introduce you to a new overloaded version of “assertTrue” and “assertFalse” methods. In the earlier versions, we used to stored the result of a comparison in local variable of type boolean and when calling assertTrue or assertFalse, we used to pass that local variable as an argument…… Continue reading assertTrue and assertFalse with Supplier Interface
Comparing two arrays for equality
In this post under Java, I will show with example how to check whether two arrays are equal or not. The class Arrays under java.util package has “equals” static method which takes two arrays as arguments and compare their contents to check whether they are same. Below is the code showing an example Main 1…… Continue reading Comparing two arrays for equality
BeforeEach and AfterEach annotations
In this post under JUnit, I will show with example the purpose of BeforeEach and AfterEach annotations. As you know when writing unit test cases, before calling the test method and asserting the output, we should first setup the data on which the test method has to be executed. We can place the code that’s…… Continue reading BeforeEach and AfterEach annotations