Nole

Nole is a testing platform just like mocha.. You can create test classes and declare specs with decorators..

Use nole 2.x for ESM and Typescript.

Use nole 1.x for CommonJS. (ability to disable Typescript with -T option)

// test/queue.test.ts
import { Spec } from 'nole';

class QueueTest {
  queue!: Queue;

  @Spec()
  CreateInstance() {
    this.queue = new Queue();  
  }

  @Spec()
  Push() {
    this.queue.push(10);
  }

  @Spec(1000)
  async Pipe() {
    await this.queue.pipe(somewhere);
  }
}

$ nole ./test/**/*.test.ts
  (ok)      0.09 ms QueueTest.CreateInstance()
  (ok)      0.11 ms QueueTest.Push()
  (ok)      1.09 ms QueueTest.Pipe()

Spec

Declaring the spec tag will notify the nole core and assigns the tasks for later use. You can also specify timeout. Default timeout is 5000 ms.

// test/queue.test.ts
import { Spec } from 'nole';

class QueueTest {
  @Spec(10000)
  Push() {
    this.queue.push(10);
  }
}

• All specs will be executed as creation order.
• Timing colors are defined by timeout value. If value smaller than (timeout / 5) output will be green. If value bigger than this but smaller than (timeout / 2.5); it will be yellow. In all other cases color will be red.

Skip

You can skip tests. (hooks will be disabled for this spec)

// test/queue.test.ts
import { Spec, Skip } from 'nole';

class QueueTest {
  @Skip('deprecated unit')
  @Spec()
  Push() {
    this.queue.push(10);
  }
}

• Skipping the task make it yellow colored.

$ nole ./**/test/*.test.ts
  (skip)              QueueTest.Push() {deprecated unit}

SkipClass

You can skip whole test classes. It's equivalent of spec skipping, but you don't have to select one by one. Kindly reminder: Dependents might require this test class and props.

// test/queue-skip-class.test.ts
import { Spec, Skip, SkipClass } from 'nole';

@SkipClass('No need anymore')
class QueueTest {
  @Spec()
  Push() { }

  @Skip('deprecated unit')
  @Spec()
  PushButSomehowDifferent() { }
}

$ nole ./**/test/*.test.ts
  (skip)              QueueTest.Push() {No need anymore}
  (skip)              QueueTest.PushButSomehowDifferent() {deprecated unit}

Dependencies

You can include other tests and wait them to complete.

// test/database.test.ts
import { Spec } from 'nole';

export class Database {
  connection!: any;

  @Spec() 
  async Connect() {
    connection = new Connection('...');

    await connection.connect();
  }
}

// test/other.test.ts
import { Spec, Dependency } from 'nole';
import { Database } from './database.test';

class Other {
  @Dependency(Database)
  database!: Database;

  @Spec() 
  async DoThings() {
    await database.connection.doStuff();
  }
}

• All dependencies will be waited until done
• If dependencies cannot resolve, it will occurr an error after the available tests done.

Multi Dependencies

Easier way to declare dependencies by decorating class with an array.

// test/redis.test.ts
import { Spec, Dependencies } from 'nole';
import { Database } from './database.test';
import { Other } from './other.test';

@Dependencies([
  Database,
  Other
])
class Redis {
  database: Database; // camel-case syntax
  // even though other does not exist in this test, but nole will make sure it is completed when this test runs

  @Spec() 
  async DoThings() {
    await database.connection.doStuff();
  }
}

Lazy multi Dependencies / after

Can solve order of execution issues

// test/redis.test.ts
import { Spec, Dependencies, After } from 'nole';

@Dependencies(() => [ B ])
// or
// @After(() => [ B ])
class A {
  b: B;

  @Spec() 
  async DoThings() { }
}

class B {
  @Spec() 
  async DoThings() { }
}

Reverse dependency / dependent / before

// test/redis.test.ts
import { Spec, Dependents, Before } from 'nole';

class A {
  b: B;

  @Spec() 
  async DoThings() { }
}

@Before(() => [ A ])
class B {
  @Spec() 
  async DoThings() { }
}

Hook

Hooks will help you to develop helper methods.

// test/hook.test.ts
import { Spec, Hook, HookType } from 'nole';

class HookTest {
  value!: number;

  @Hook(HookType.BeforeEach)
  async beforeEach() {
    this.value = Math.random();
  }

  @Spec()
  ValidateNumber() {
    if (this.value > 0.5) {
      throw new Error('Should not be higher than 0.5');
    }
  }
}

• Hooks can be async tasks.
• Hooks do have timeout, you can change it by second parameter.
• If you name hook same as hook type then; When it occurr an error, It will print "class:hookType" otherwise "class.name:hoopType"
• Hooks cannot be spec
• Hooks cannot skipped

Dynamic Tests

Dynamic tests are not featured in but you can create another method and call it dynamicly.

// test/dynamic.test.ts
import { Spec } from 'nole';

class DynamicTest {
  @Spec()
  Some() {
    for (let i = 0; i < 10; i++) {
      this.single(i);
    }
  }

  single(i) {
    // ...    
  }
}

Dependency hook

After end of the test tree, special hook will be called. Nole will follow execution order to run; first executed spec's "CleanUp" hook will be called last.

// test/database-with-cleanup.test.ts
import { Spec, HookType, Hook } from 'nole';

export class DatabaseWithCleanup {
  connection!: any;

  @Spec() 
  async Connect() {
    connection = new Connection('...');

    await connection.connect();
  }

  @Hook(HookType.CleanUp)
  async cleanUp() {
    this.connection.close();
    console.log('Connection closed!');
  }
}

// test/other.test.ts
import { Spec, Dependency } from 'nole';
import { Database } from './database.test';

class Other {
  @Dependency(DatabaseWithCleanup)
  database!: DatabaseWithCleanup;

  @Spec() 
  async DoThings() {
    await database.connection.doStuff();
  }
}

$ nole ./test/**/*.test.ts
  (ok)      0.09 ms DatabaseWithCleanup.Connect()
  (ok)      0.11 ms Other.DoThings()
Connection closed!

Assert

We do not provide assert library. You can use chai or should.js.

Debugging

Having cleanup features with missing dependencies could lead to issues and time loses. To make sure execution of tests correct, use -O parameter to print out every spec and hook without calling the function. It will also print before/after hook orders.

$ nole -O ./test/**/*.test.ts
  (skip)             SkipAllTest.wontRun() {skip all class}
  (skip)             SkipAllTest.wontRunToo() {wont run too}
  (skip)             SkipAllWithoutReason.wontRun()
   (ok)         0 ms BasicTest.checkEqual()
   (ok)         0 ms DependencyTest.check()
   (ok)         0 ms CleanUpLayer1Test.start()
   (ok)         0 ms CleanUpLayer2Test.start()
   (ok)         0 ms CleanUpLayer3Test.start()
   (ok)         0 ms DynamicSkipTest.thisShouldBeSkipped()
   (ok)         0 ms HookTest.pushFourIntoArray:beforeEach()
   (ok)         0 ms HookTest.hasToBe4()
  (skip)             HookTest.hasToBe4Again() {no need}
   (ok)         0 ms HookTest.pushFourIntoArray:beforeEach()
   (ok)      0.03 ms HookTest.hasToBe4AgainButNotSkipped()
   (ok)         0 ms MultiDependency.test()
   (ok)         0 ms CleanUpLayer3Test:cleanUp()
   (ok)         0 ms CleanUpLayer2Test:cleanUp()
   (ok)         0 ms CleanUpLayer1Test:cleanUp()
   (ok)         0 ms DynamicTest.thisTestsShouldNotFail()
   (ok)         0 ms TimeFactorTest.evaluate()
   (ok)         0 ms TimeDifferenceTest.evaluate()
   (ok)         0 ms ExecutorTest.evaluate()
   (ok)         0 ms ExecutorTest.throws()
   (ok)         0 ms ExecutorTest.timeout()

Compiled files

Deprecated (v2.x+), It will always use ts-node/esm module

You can run the compiled test files with -T option.

$ nole -T ./build/test/**/*.test.js
  (ok)      0.09 ms QueueTest.CreateInstance()
  (ok)      0.11 ms QueueTest.Push()
  (ok)      1.09 ms QueueTest.Pipe()

This will prevent to load ts-node register. It will be quite faster.

Environment values to configure stuff

NOLE_PRESERVE_CONSECUTIVE_UPPERCASE=true
NOLE_PASCALCASE=false
NOLE_WAIT_PERIOD=500