Tests

Latta offers a node based builder for testing your web apps and REST APIs.

The nodes editor

Latta lets you build your tests using simple node editor, the nodes are built to be as easy and as powerful to use.

How does the node graph work

It all begins with an Input node, this node is the entry point of your test and can only be one and it can not be deleted from the graph.

The next semi-important node it the Output node, this node should signalize the end of happy path of your test but it has no real value.

As stated before it all starts from the Input node, notice it has an output Action handle, this is one of the handle types Latta supports and it tells the test runner to navigate to the next step, in case of no next step the test ends but you should strive to always end the graph with the output node.

The other handle types are Boolean, Number, Text, Element, Response and Object, out of these primitive types you can build complex tests.

Branching

As stated before the test runner follows the Action handles and it is not allowed to loop back, for this we have a special Run action node which let’s you execute a different branch of the test before continuing to a next step, this can for example be used to manually finally the test with a custom Reason error message.

Reusing values

Apart from output Action handles they can be connected to many other source handles, this might be useful when for example you have many fail nodes and you want to give them the same Reason error message, you can just create a Text value node and connect it to all the Fail test nodes.

In the next you are going to learn more in depth about test collections.