Extra - Lab 2

In this lab, you need to refactor the SimulationsTest placed in the com.workshop.simulation in the src/java/test folder. A better approach is to comment on all the previous tests.

1. Refactor the shouldRetrieveAllSimulations() test

Precondition

1. Create a global attribute instance for the SimulationsApiService

   private final SimulationsApiService simulationsApiService = new SimulationsApiService();
   

Steps

1. In the shouldRetrieveAllSimulations() test, use the SimulationsApiService to:
   • retrieve all the simulations
   • assert if the list size is equa to or higher than 1
2. Run the test

Tips

To verify the returned list size you can use the following matcher from AssertJ:

Assertions.assertThat(simulations).hasSizeGreaterThanOrEqualTo(1);

Expected results

• Green test execution

Solution

Click to see...

@Test
void shouldRetrieveAllSimulations() {
    var simulations = simulationsApiService.retrieveSimulations();
    Assertions.assertThat(simulations).hasSizeGreaterThanOrEqualTo(1);
}    

2. Create a test to find a simulation by name

Steps

1. Create a new test method called shouldRetrieveSimulationByItsName()
2. Use the method, from the service class, which is expecting the name as a query parameter
3. Assert only the name returned and for this use the following code

   Assertions.assertThat(simulations).anySatisfy(
        simulation -> Assertions.assertThat(simulation.getName()).isEqualTo("Tom"));
   

4. Run the test

Tips

To verify the returned list size you can use the following matcher from AssertJ:

Assertions.assertThat(simulations).hasSizeGreaterThanOrEqualTo(1);

Expected results

• Green test execution

Solution

Click to see...

@Test
void shouldRetrieveSimulationByItsName() {
    var simulations = simulationsApiService.retrieveSimulations("Tom");

    Assertions.assertThat(simulations).anySatisfy(
            simulation -> Assertions.assertThat(simulation.getName()).isEqualTo("Tom"));
}   

3. Create a test to find a simulation by cpf

Steps

1. Create a new test method called shouldFindSimulationByCpf()
2. Use the method, from the service class, which is expecting the cpf as path parameter
3. Assert all the data, including the id, using the following code snippet

   SoftAssertions.assertSoftly(softly -> {
      Assertions.assertThat(simulation.getSomething()).assertMethod();
      // similar line for the other attributes
   });
   

4. Run the test

Soft assertions

AssertJ has a feature called Soft Assertions It will assert all data inside the assertSoftly method, not stopping the execution when the assertion fails.

Tips

Use the following assertions methods to replace the assertMethod() in step 3:

• isNotNull() for the id assertion
• isEqualTo() for all text assertions
• isTrue() or isFalse() for the boolean assertion

Expected results

• Green test execution

Solution

Click to see...

@Test
void shouldFindSimulationByCpf() {
    var simulation = simulationsApiService.retrieveSimulation("66414919004");
    SoftAssertions.assertSoftly(softly -> {
        Assertions.assertThat(simulation.getId()).isNotNull();
        Assertions.assertThat(simulation.getName()).isEqualTo("Tom");
        Assertions.assertThat(simulation.getCpf()).isEqualTo("66414919004");
        Assertions.assertThat(simulation.getEmail()).isEqualTo("tom@gmail.com");
        Assertions.assertThat(simulation.getAmount()).isEqualTo("11000.00");
        Assertions.assertThat(simulation.getInstallments()).isEqualTo(3);
        Assertions.assertThat(simulation.isInsurance()).isTrue();
    });
}  

4. Create a test to create a new simulation

Steps

1. Create a new test method called shouldCreateSimulation()
2. Create a Simulation object to use as the request body, with any data you like inside
3. Assert the return, which is a Header using the getValue() and the contains() assertion to see if the cpf is present in the location

   Assertions.assertThat(header.getValue()).contains(simulation.getCpf());
   

4. Run the test

Expected results

• Green test execution

Solution

Click to see...

@Test
void shouldCreateSimulation() {
    var simulation = Simulation.builder().name("Robert").cpf("98765432103").email("robert@gmail.com")
            .amount(new BigDecimal("3000.00")).installments(5).insurance(true).build();

    var header = simulationsApiService.createSimulation(simulation);
    Assertions.assertThat(header.getValue()).contains(simulation.getCpf());
}

5. Create a test to update an existing simulation

Steps

1. Create a new test method called shouldUpdateExistingSimulation()
2. Create a Simulation object to use as the request body, with any data you like inside
3. Create the simulation using the createSimulation() method from the service class
4. Change the name of the Simulation created in step 2
5. Update the Simulation using the cpf from the object created in step 2
6. Assert that the Simulation object from step 2 is equal to the one returned from the updated in step 5
7. Run the test

Expected results

• Green test execution

Solution

Click to see...

@Test
void shouldUpdateExistingSimulation() {
    var newSimulation = Simulation.builder().name("Robert").cpf("748392749450").email("robert@gmail.com")
            .amount(new BigDecimal("3000.00")).installments(5).insurance(true).build();
    simulationsApiService.createSimulation(newSimulation);

    newSimulation.setName("Different name");

    var simulationUpdated = simulationsApiService.updateSimulation(newSimulation.getCpf(), newSimulation);
    Assertions.assertThat(simulationUpdated).isEqualTo(newSimulation);
}

6. Create a test to delete an existing simulation

Steps

1. Create a new test method called shouldDeleteExistingSimulation()
2. Create a Simulation object to use as the request body, with any data you like inside
3. Create the simulation using the createSimulation() method from the service class
4. Delete the simulation created using the delete method from the service class, using the cpf from the simulation created
5. Assert that the return is true

Expected results

• Green test execution

Solution

Click to see...

@Test
void shouldDeleteExistingSimulation() {
    var simulation = Simulation.builder().name("Robert").cpf("874222357").email("robert@gmail.com")
            .amount(new BigDecimal("3000.00")).installments(5).insurance(true).build();
    simulationsApiService.createSimulation(simulation);

    var isDeleted = simulationsApiService.deleteSimulation(simulation.getCpf());
    Assertions.assertThat(isDeleted).isTrue();
}