Designing a preventive strategy

With Isolated and Integrated tests

Aritz Águila Díaz

About me

Community

Work

@duiraritz

Aritz Águila Díaz

Co-organizer

Owner

Head of QA

Quality Engineer

Present

Former

A bit of context
Isolated & Integrated differences
Isolated code examples
Pros & Cons of each type
When to use each in our strategy

What are we going to talk about

Reactive Strategy

Find bugs strategy

This makes testing not entirely efficient and affects team productivity.

Preventive Strategy

Preventive bugs strategy

Isolated tests

Preventive Strategy

Three pillars

Productivity

Defect
prevention

Adaptability

A bit of context
Isolated & Integrated differences
Isolated code examples
Pros & Cons of each type
When to use each in our strategy

What are we going to talk about

Tests that require a real communication or integration with other collaborator.

Integrated tests

Integrated tests types

Integration tests.
Functional or E2E tests.
Performance tests.
...

Possible problems

Poor traceability

Poor feedback

Flaky tests

Long testing time

Tests that don't require a real communication or integration with other collaborator.

Isolated tests

Isolated tests types

Unit tests.
Contract tests.
Integration tests.
Functional or E2E tests.
Performance tests.
...

A bit of context
Isolated & Integrated differences
Isolated code examples
Pros & Cons of each type
When to use each in our strategy

What are we going to talk about

The App

The App Code

https://github.com/QAJungle/isolated-test-examples

SUT architecture

Nobel prize storage app

https://github.com/QAJungle/isolated-test-examples

Uncouple Back - Front
testing

https://github.com/QAJungle/isolated-test-examples

Back contract tests

package prizes.getPrizes.successfully

import org.springframework.cloud.contract.spec.Contract

Contract.make {
  request {
    method('GET')
      url('/nobel_prizes/v1/')
  }
  response {
    status OK()
  ...

Contract

https://github.com/QAJungle/isolated-test-examples/tree/master/back-test

Consumer

Provider

Ensure that the sent or received message complies with the agreed conditions

Consumer & Provider isolated testing

Conditions

Front isolated testing

Nobel prize front

https://github.com/QAJungle/isolated-test-examples/tree/master/front-test

version: "3.1"
services:
  stubs:
    image: spring-cloud-contract-stub-runner:2.1.2.RELEASE
    environment:
      - STUBRUNNER_IDS=...infrastructure:+:stubs:9876
      - STUBRUNNER_STUBS_MODE=LOCAL
    volumes:
      - ~/.m2:/root/.m2
      ...

Docker-compose stub runner

https://github.com/QAJungle/isolated-test-examples/tree/master/front-test

E2E test

context('Navigation', () => {
  it('search a nobel prize by category and years', () => {
    const category = 'physics'
    const from = '2018'
    const to = '2019'

    cy.get('[data-test=search-category]').type(category
    ...
  })
})

Front e2e tests

No deployment needed.
No external collaborator needed.
Reduced test time.
Early stage feedback.

Back isolated testing

https://github.com/QAJungle/isolated-test-examples/tree/master/back-test

version: "3.1"

services:
  back_test_web:
    depends_on:
      - back_test_db
      - back_test_wiremock
    build:
      dockerfile: ./src/e2eTest/resources/docker/Dockerfile
    ...

Docker-compose

https://github.com/QAJungle/isolated-test-examples/tree/master/back-test

@Test void
should_get_nobel_prizes() {

  //Call to api first time
  given()
  .when()
  .contentType(ContentType.JSON)
  .get(nobelPrizesApiUrl)
  .then()
  .statusCode(200);

  ...
}

E2E test