README.md

Tests, Tests Everywhere!

Welcome to the Hello World! of testing using the most popular programming languages ...

In each of them we will implement this simple logic:

%%{ init: { "sequence": { "mirrorActors": false } } }%%
sequenceDiagram
  participant Main
  participant HelloApp as Hello<br>App
  participant HelloMessage as Hello<br>Message
  participant HelloConsole as Hello<br>Console
  Main ->> HelloMessage: Create
  Main ->> HelloConsole: Create
  Main ->> HelloApp: Create
  Main ->>+ HelloApp: printHello()
  HelloApp ->> HelloMessage: getText()
  HelloMessage -->> HelloApp: "Hello World!"
  HelloApp ->> HelloConsole: print("Hello World!")
  HelloApp -->>- Main: #0032;

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And we will test both HelloMessage ...

%%{ init: { "sequence": { "mirrorActors": false } } }%%
sequenceDiagram
  participant Test
  participant HelloMessage as Hello<br>Message
  Test ->> HelloMessage: Create
  Test ->> HelloMessage: getText()
  HelloMessage -->> Test: "Hello World!"
  Test ->> Test: Assert Text<br>is "Hello World!"

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... and HelloApp:

%%{ init: { "sequence": { "mirrorActors": false } } }%%
sequenceDiagram
  participant Test
  participant HelloApp as Hello<br>App
  participant HelloMessageMock as Hello Message<br>Mock
  participant HelloConsoleMock as Hello Console<br>Mock
  Test ->> HelloMessageMock: Create
  Test ->> HelloConsoleMock: Create
  Test ->> HelloApp: Create
  Test ->>+ HelloApp: printHello()
  HelloApp ->> HelloMessageMock: getText()
  HelloMessageMock -->> HelloApp: "Hello Test!"
  HelloApp ->> HelloConsoleMock: print("Hello Test!")
  HelloApp -->>- Test: #0032;
  Test ->> Test: Verify Hello Console Mock<br>has been called once<br>with "Hello Test!"

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Happy Testing! 💙