Code Blocks

Code blocks is a powerful way to run custom logic for different variations. For tests which are not based on the existing variables of your app, code block offers a developer-friendly approach to test different variations.

The VWO SDK identifies a test by its test key. The test key should match the key you created while setting up the A/B test on the VWO web portal.

The variationName function returns the name of the variation you created on the VWO web portal.

NSString *variationName = [VWO variationNameForTestKey:@"test_key"];
if ([variationName isEqualToString:@"Control"]) {
    // Code for Control
} else if ([variationName isEqualToString:@"Variation 1"]) {
    // Code for Variation 1
} else {

}

if let variation = VWO.variationNameFor(testKey: "test_key") {
    switch variation {
        case "Control":
            // Code for Control
            break
        case "Variation 1":
            // Code for Variation 1
            break
        default: break
    }
}

The variation name should match the name you used on the VWO web portal.
Use the last else or default section to code the behavior of your app if this A/B test is not running.
If your control and default behaviors are the same, you can remove the control condition.