Tests for the neuralNetwork addData function.

[lindapaiste]

This is a draft because there is a some obnoxious issue with and import statement in the @tensorflow/tfjs-vis package which causes Jest to crash while testing the NeuralNetwork/index.js file. I had to comment out a few lines regarding the NeuralNetworkVis while working on the tests. Make I can make a jest mock for the file?

    Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

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    Details:

    D:\projects\ml5.js\ml5-next-gen\node_modules\@tensorflow\tfjs-core\dist\public\chained_ops\register_all_chained_ops.js:17
    import './abs';
    ^^^^^^

    SyntaxError: Cannot use import statement outside a module

      1 | // import * as tf from '@tensorflow/tfjs';
    > 2 | import * as tfvis from "@tensorflow/tfjs-vis";
        | ^
      3 | // https://js.tensorflow.org/api_vis/latest/#render.barchart
      4 |
      5 | class NeuralNetworkVis {

      at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1505:14)
      at Object.<anonymous> (node_modules/@tensorflow/tfjs-vis/src/index.ts:19:1)
      at Object.require (src/NeuralNetwork/NeuralNetworkVis.js:2:1)
      at Object.require (src/NeuralNetwork/index.js:9:1)
      at Object.require (src/NeuralNetwork/index.test.js:2:1)

There are a bunch of tests which fail at the moment that are being ignored with .skip. These are things that I would like to improve in the neural network code eventually, such as throwing errors on logging warnings on incomplete data.

• classification
  • using property names for inputs and outputs
    • creates a model
    • can add data from a dictionary object
    • ignores excess properties
    • errors on missing properties
    • can add data as an array
    • errors on too few inputs
    • warns on too many inputs
  • using numbers for inputs and outputs
    • creates a model
    • can add data from a dictionary object
    • can add data as an array
• image classification
  • can add HTML images
  • can add untyped pixel arrays
  • can add typed pixel arrays