TestBox : Behavior Driven Development (BDD)
API DocsSourceSupportBoxLang
v6.x
v6.x
  • Introduction
    • Release History
      • What's New With 6.3.0
      • What's New With 6.2.1
      • What's New With 6.2.0
      • What's New With 6.1.0
      • What's New With 6.0.1
      • What's New With 6.0.0
    • About This Book
      • Author
  • Getting Started
    • Overview
    • Installation
      • IDE Tools
      • MXUnit Compatibility
    • Writing Tests
    • Running Tests
      • BoxLang CLI Runner
      • CommandBox Runner
      • Web Runner
      • Bundle(s) Runner
      • Directory Runner
      • ANT Runner
      • NodeJS Runner
      • Global Runner
      • Test Browser
    • BDD Tests
      • Bundles: Group Your Tests
      • Suites: Describe Your Tests
        • Dynamic Suites
      • Specs
      • Expectations
      • Suite Groups
        • Given-When-Then Blocks
      • Life-Cycle Methods
      • Life-Cycle Data Binding
      • Specs and Suite Labels
      • Skipping Specs and Suites
      • Focused Specs and Suites
      • Spies & Mocking
      • Asynchronous Testing
      • Running Tests
      • Reporters
    • xUnit Tests
      • Test Bundles
      • Life-Cycle Methods
      • Test Methods
      • Assertions
      • Test and Suite Labels
      • Skipping Tests and Suites
      • Spies and Mocking
      • Asynchronous-Testing
      • Running Tests
      • Reporters
  • Digging Deeper
    • Life-Cycle Annotations
    • Assertions
      • Custom Assertions
    • Expectations
      • Matchers
      • Not Operator
      • Expecting Exceptions
      • Custom Matchers
    • Output Utilities
    • Runner Listeners
    • Reporters
      • Custom Reporters
    • Modules
    • Code Coverage
      • Running Code Coverage
      • Configuring Code Coverage
      • Known Behaviors
    • Continous Integration
      • Github Actions
      • Gitlab
      • Travis
  • Mocking
    • MockBox
      • What is Mocking?
      • Our Approach and Benefits
      • Creating MockBox
      • Creating a Mock Object
      • Creating a Stub Object
      • Mocking Methods
        • $() Method
        • $args() Method
        • $getProperty() Method
        • $property() Method
        • $querySim() Method
        • $results() Method
        • $spy()
        • $throws() Method
      • Verification Methods
        • $count()
        • $times() or $verifyCallCount()
        • $never()
        • $atLeast()
        • $once()
        • $atMost()
        • $callLog()
        • $reset()
        • $debug()
      • Some Examples
      • Conclusion
    • Mocking Data
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  1. Mocking
  2. MockBox
  3. Verification Methods

$once()

This method can help you verify that only ONE mocked method call has been made on the entire mock or a specific mocked method. Useful alias!

Boolean $once([methodname])

Parameters:

  • methodName - The optional method name to assert the number of method calls

Examples:

// let's say we have a service that verifies user credentials
// and if not valid, then tries to check if the user can be inflated from a cookie
// and then verified again
function verifyUser(){

    if( isValidUser() ){
        log.info("user is valid, doing valid operations");
    }

    // check if user cookie exists
    if( isUserCookieValid() ){
        // inflate credentials
        inflateUserFromCookie();
        // Validate them again
        if( NOT isValidUser() ){
            log.error("user from cookie invalid, aborting");
        }
    }
}

// Now the test
it( "can verify a user", function(){
    security = getMockBox().createMock("model.security").$("isValidUser",false);
    security.storeUserCookie("valid");
    security.verifyUser();

    expect( security.$once("isValidUser") ).toBeTrue();
});
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