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Diffstat (limited to 'test/cacheable-object.js')
| -rw-r--r-- | test/cacheable-object.js | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/test/cacheable-object.js b/test/cacheable-object.js deleted file mode 100644 index dd93343..0000000 --- a/test/cacheable-object.js +++ /dev/null @@ -1,274 +0,0 @@ -import test from 'tape'; - -import CacheableObject from '../src/data/cacheable-object.js'; - -// Utility - -function newCacheableObject(PD) { - return new (class extends CacheableObject { - static propertyDescriptors = PD; - }); -} - -// Tests - -test(`CacheableObject simple separate update & expose`, t => { - const obj = newCacheableObject({ - number: { - flags: { - update: true - } - }, - - timesTwo: { - flags: { - expose: true - }, - - expose: { - dependencies: ['number'], - compute: ({ number }) => number * 2 - } - } - }); - - t.plan(1); - obj.number = 5; - t.equal(obj.timesTwo, 10); -}); - -test(`CacheableObject basic cache behavior`, t => { - let computeCount = 0; - - const obj = newCacheableObject({ - string: { - flags: { - update: true - } - }, - - karkat: { - flags: { - expose: true - }, - - expose: { - dependencies: ['string'], - compute: ({ string }) => { - computeCount++; - return string.toUpperCase(); - } - } - } - }); - - t.plan(8); - - t.is(computeCount, 0); - - obj.string = 'hello world'; - t.is(computeCount, 0); - - obj.karkat; - t.is(computeCount, 1); - - obj.karkat; - t.is(computeCount, 1); - - obj.string = 'testing once again'; - t.is(computeCount, 1); - - obj.karkat; - t.is(computeCount, 2); - - obj.string = 'testing once again'; - t.is(computeCount, 2); - - obj.karkat; - t.is(computeCount, 2); -}); - -test(`CacheableObject combined update & expose (no transform)`, t => { - const obj = newCacheableObject({ - directory: { - flags: { - update: true, - expose: true - } - } - }); - - t.plan(2); - - t.directory = 'the-world-revolving'; - t.is(t.directory, 'the-world-revolving'); - - t.directory = 'chaos-king'; - t.is(t.directory, 'chaos-king'); -}); - -test(`CacheableObject combined update & expose (basic transform)`, t => { - const obj = newCacheableObject({ - getsRepeated: { - flags: { - update: true, - expose: true - }, - - expose: { - transform: value => value.repeat(2) - } - } - }); - - t.plan(1); - - obj.getsRepeated = 'dog'; - t.is(obj.getsRepeated, 'dogdog'); -}); - -test(`CacheableObject combined update & expose (transform with dependency)`, t => { - const obj = newCacheableObject({ - customRepeat: { - flags: { - update: true, - expose: true - }, - - expose: { - dependencies: ['times'], - transform: (value, { times }) => value.repeat(times) - } - }, - - times: { - flags: { - update: true - } - } - }); - - t.plan(3); - - obj.customRepeat = 'dog'; - obj.times = 1; - t.is(obj.customRepeat, 'dog'); - - obj.times = 5; - t.is(obj.customRepeat, 'dogdogdogdogdog'); - - obj.customRepeat = 'cat'; - t.is(obj.customRepeat, 'catcatcatcatcat'); -}); - -test(`CacheableObject validate on update`, t => { - const mockError = new TypeError(`Expected a string, not ${typeof value}`); - - const obj = newCacheableObject({ - directory: { - flags: { - update: true, - expose: true - }, - - update: { - validate: value => { - if (typeof value !== 'string') { - throw mockError; - } - return true; - } - } - }, - - date: { - flags: { - update: true, - expose: true - }, - - update: { - validate: value => (value instanceof Date) - } - } - }); - - let thrownError; - t.plan(6); - - obj.directory = 'megalovania'; - t.is(obj.directory, 'megalovania'); - - try { - obj.directory = 25; - } catch (err) { - thrownError = err; - } - - t.is(thrownError, mockError); - t.is(obj.directory, 'megalovania'); - - const date = new Date(`25 December 2009`); - - obj.date = date; - t.is(obj.date, date); - - try { - obj.date = `TWELFTH PERIGEE'S EVE`; - } catch (err) { - thrownError = err; - } - - t.is(thrownError?.constructor, TypeError); - t.is(obj.date, date); -}); - -test(`CacheableObject default update property value`, t => { - const obj = newCacheableObject({ - fruit: { - flags: { - update: true, - expose: true - }, - - update: { - default: 'potassium' - } - } - }); - - t.plan(1); - t.is(obj.fruit, 'potassium'); -}); - -test(`CacheableObject default property throws if invalid`, t => { - const mockError = new TypeError(`Expected a string, not ${typeof value}`); - - t.plan(1); - - let thrownError; - - try { - newCacheableObject({ - string: { - flags: { - update: true - }, - - update: { - default: 123, - validate: value => { - if (typeof value !== 'string') { - throw mockError; - } - return true; - } - } - } - }); - } catch (err) { - thrownError = err; - } - - t.is(thrownError, mockError); -}); |