json-templater/object_test.js

Simple json/js object template strings

suite('object', function() {
  var subject = require('./object');
  var renderString = require('./string');
  var assert = require('assert');

  function verify(title, input, output, handler) {
    test(title, function() {
      var result = subject.apply(subject, input);
      assert.deepEqual(output, result);
    });
  }


  verify(
    'replace value in nested object',
    [
      {
        foo: {
          bar: '{{say.what}}'
        }
      },
      {
        say: { what: 'yeah' }
      }
    ],
    {
      foo: {
        bar: 'yeah'
      }
    }
  );

  verify(
    'replace keys',
    [
      {
        'mykeywins{{yes}}': 'value'
      },
      { yes: 'no' }
    ],
    { 'mykeywinsno': 'value' }
  );

  verify(
    'boolean',
    [{ 'woot': true }, {}],
    { woot: true }
  );

  verify(
    'undefined',
    [
      {
        key: 'value',
        object: {
          nested: undefined
        }
      },
      []
    ],
    {
      key: 'value',
      object: {
        nested: undefined
      }
    }
  );

  verify(
    'array',
    [
      ['foo', 'bar{{1}}', 'baz{{2}}'],
      ['ignore me', '-first', '-second']
    ],
    [
      'foo',
      'bar-first',
      'baz-second'
    ]
  );

  verify(
    'number',
    [{ xfoo: 1 }, {}],
    { xfoo: 1 }
  );

  verify(
    'nested arrays',
    [
      '{{some.arrays}}',
      { some: { arrays: [1, [2, [{3: 4}]]] } }
    ],
    [1, [2, [{3: 4}]]]
  );

  verify(
    'nested objects', [
      '{{some.object}}',
      { some: { object: {3: {4: 5}} } }
    ],
    {3: {4: 5}}
  );

  verify(
    'nested arrays in objects and objects in arrays',
    [
      {
        'arrays{{some.arrays.0}}': '{{some.arrays}}',
        'object{{some.arrays.1.0}}': '{{some.object}}'
      }, {
        some: {
          arrays: [1, [2, [{ 3: 4 }]]],
          object: { 3: { 4: 5 }}
        }
      }
    ], {
      arrays1: [1, [2, [{ 3: 4 }]]],
      object2: { 3: { 4: 5 }}
    }
  );

  verify(
    'custom handler',
    [
      {
        foo: 'hello from {{foo}}',
        bar: 'hello from {{bar}}'
      },
      {
        foo: 'foo',
        bar: 'bar'
      },
      function(value, view, key) {
        // let's render the corresponding value in a different way
        if (key === 'foo') {
          return value;
        }
        return renderString(value, view);
      }
    ],
    {
      foo: 'hello from {{foo}}',
      bar: 'hello from bar'
    }
  );

});