TestBox : Behavior Driven Development (BDD)...
BDD

beforeAll() - Executes once before all specs for the entire test bundle CFC
afterAll() - Executes once after all specs complete in the test bundle CFC
run( testResults, TestBox ) - Executes once so it can capture all your describe and it blocks
beforeEach( body, data ) - Executes before every single spec in a single describe block and receives the currently executing spec.
afterEach( body, data ) - Executes after every single spec in a single describe block and receives the currently executing spec.
aroundEach( body, data ) - Executes around the executing spec so you can provide code surrouding the spec.
component{
     function beforeAll(){}
     function afterAll(){}
​
     function run( testResults, testBox ){
          describe("A Spec", function(){
​
               beforeEach( function( currentSpec ){
                    // before each spec in this suite
               });
​
               afterEach( function( currentSpec ){
                    // after each spec in this suite
               });
​
               aroundEach( function( spec, suite ){
                    // execute the spec
                    arguments.spec.body();
               });
​
               describe("A nested suite", function(){
​
                    // my parent's aroundEach()
​
                    beforeEach( function(){
                         // before each spec in this suite + my parent's beforeEach()
                    });
​
                    afterEach( function(){
                         // after each spec in this suite + my parent's afterEach()
                    });
​
                });
​
          });
​
          describe("A second spec", function(){
​
               beforeEach( function( currentSpec ){
                    // before each spec in this suite, separate from the two other ones
               });
​
               afterEach( function( currentSpec ){
                    // after each spec in this suite, separate from the two other ones
               });
​
          });
     }
}
The great flexibility of the BDD approach is that it allows you to nest describe blocks or create multiple describe blocks. Each describe block can have its own life-cycle methods as well. Not only that, if they are nested, TestBox will walk the tree and call each beforeEach() and afterEach() in the order you declare them.
Life-Cycle Data Binding
You can pass in an argument called data which is a struct of dynamic data to pass into the life-cycle method. You can then pickup this data in the closure for the life-cycle.
beforeEach( 
    data = { mydata="luis" }, 
    body = function( currentSpec, data ){
        // The arguments.data is binded via the `data` snapshot above.
        data.myData == "luis";
    }
);
Here is a typical example:
describe( "Ability to bind data to life-cycle methods", function(){
​
    var data = [
        "spec1",
        "spec2"
    ];
​
    for( var thisData in data ){
        describe( "Trying #thisData#", function(){
​
            beforeEach( data={ myData = thisData }, body=function( currentSpec, data ){
                targetData = arguments.data.myData;
            });
​
            it( title="should account for life-cycle data binding", 
                data={ myData = thisData},
                body=function( data ){
                    expect(    targetData ).toBe( data.mydata );
                }
            );
​
            afterEach( data={ myData = thisData }, body=function( currentSpec, data ){
                targetData = arguments.data.myData;
            });
        });
    }
​
    for( var thisData in data ){
​
        describe( "Trying around life-cycles with #thisData#", function(){
​
            aroundEach( data={ myData = thisData }, body = function( spec, suite, data ){
                targetData = arguments.data.myData;
                arguments.spec.body( data=arguments.spec.data );
            });
​
            it( title="should account for life-cycle data binding", 
                data={ myData = thisData },
                body=function( data ){
                    expect(    targetData ).toBe( data.mydata );
                }
            );
​
        });
​
    }
});
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