vault/ui/tests/unit/utils/chart-helpers-test.js
Jordan Reimer d4766766f2
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2022-10-18 09:46:02 -06:00

71 lines
2.4 KiB
JavaScript

import { formatNumbers, formatTooltipNumber, calculateAverage } from 'vault/utils/chart-helpers';
import { module, test } from 'qunit';
const SMALL_NUMBERS = [0, 7, 27, 103, 999];
const LARGE_NUMBERS = {
1001: '1k',
33777: '34k',
532543: '530k',
2100100: '2.1M',
54500200100: '55B',
};
module('Unit | Utility | chart-helpers', function () {
test('formatNumbers renders number correctly', function (assert) {
assert.expect(11);
const method = formatNumbers();
assert.ok(method);
SMALL_NUMBERS.forEach(function (num) {
assert.strictEqual(formatNumbers(num), num, `Does not format small number ${num}`);
});
Object.keys(LARGE_NUMBERS).forEach(function (num) {
const expected = LARGE_NUMBERS[num];
assert.strictEqual(formatNumbers(num), expected, `Formats ${num} as ${expected}`);
});
});
test('formatTooltipNumber renders number correctly', function (assert) {
const formatted = formatTooltipNumber(120300200100);
assert.strictEqual(formatted.length, 15, 'adds punctuation at proper place for large numbers');
});
test('calculateAverage is accurate', function (assert) {
const testArray1 = [
{ label: 'foo', value: 10 },
{ label: 'bar', value: 22 },
];
const testArray2 = [
{ label: 'foo', value: undefined },
{ label: 'bar', value: 22 },
];
const getAverage = (array) => array.reduce((a, b) => a + b, 0) / array.length;
assert.strictEqual(calculateAverage(null), null, 'returns null if dataset it null');
assert.strictEqual(calculateAverage([]), null, 'returns null if dataset it empty array');
assert.strictEqual(
calculateAverage([0]),
getAverage([0]),
`returns ${getAverage([0])} if array is just 0 0`
);
assert.strictEqual(
calculateAverage([1]),
getAverage([1]),
`returns ${getAverage([1])} if array is just 1`
);
assert.strictEqual(
calculateAverage([5, 1, 41, 5]),
getAverage([5, 1, 41, 5]),
`returns correct average for array of integers`
);
assert.strictEqual(
calculateAverage(testArray1, 'value'),
getAverage([10, 22]),
`returns correct average for array of objects`
);
assert.strictEqual(
calculateAverage(testArray2, 'value'),
getAverage([0, 22]),
`returns correct average for array of objects containing undefined values`
);
});
});