diff options
| -rw-r--r-- | src/data/things/composite.js | 6 | ||||
| -rw-r--r-- | test/unit/data/composite/compositeFrom.js | 237 |
2 files changed, 240 insertions, 3 deletions
diff --git a/src/data/things/composite.js b/src/data/things/composite.js index da2848f8..c0f0ab0b 100644 --- a/src/data/things/composite.js +++ b/src/data/things/composite.js @@ -752,6 +752,9 @@ export function templateCompositeFrom(description) { templateCompositeFrom.symbol = Symbol(); +export const continuationSymbol = Symbol.for('compositeFrom: continuation symbol'); +export const noTransformSymbol = Symbol.for('compositeFrom: no-transform symbol'); + export function compositeFrom(description) { const {annotation} = description; @@ -1070,9 +1073,6 @@ export function compositeFrom(description) { return {continuation, continuationStorage}; } - const continuationSymbol = Symbol.for('compositeFrom: continuation symbol'); - const noTransformSymbol = Symbol.for('compositeFrom: no-transform symbol'); - function _computeOrTransform(initialValue, continuationIfApplicable, initialDependencies) { const expectingTransform = initialValue !== noTransformSymbol; diff --git a/test/unit/data/composite/compositeFrom.js b/test/unit/data/composite/compositeFrom.js new file mode 100644 index 00000000..faeef59a --- /dev/null +++ b/test/unit/data/composite/compositeFrom.js @@ -0,0 +1,237 @@ +import t from 'tap'; + +import {isString} from '#validators'; + +import { + compositeFrom, + continuationSymbol, + debugComposite, + input, +} from '#composite'; + +t.test(`compositeFrom: basic behavior`, t => { + t.plan(2); + + const composite = compositeFrom({ + annotation: `myComposite`, + compose: false, + + steps: [ + { + dependencies: ['foo'], + compute: (continuation, {foo}) => + continuation({'#bar': foo * 2}), + }, + + { + dependencies: ['#bar', 'baz', 'suffix'], + compute: ({'#bar': bar, baz, suffix}) => + baz.repeat(bar) + suffix, + }, + ], + }); + + t.match(composite, { + annotation: `myComposite`, + + flags: {expose: true, compose: false, update: false}, + + expose: { + dependencies: ['foo', 'baz', 'suffix'], + compute: Function, + transform: null, + }, + + update: null, + }); + + t.equal( + composite.expose.compute({ + foo: 3, + baz: 'ba', + suffix: 'BOOM', + }), + 'babababababaBOOM'); +}); + +t.test(`compositeFrom: input-shaped step dependencies`, t => { + t.plan(2); + + const composite = compositeFrom({ + compose: false, + steps: [ + { + dependencies: [ + input.myself(), + input.updateValue(), + ], + + transform: (updateValue1, { + [input.myself()]: me, + [input.updateValue()]: updateValue2, + }) => ({me, updateValue1, updateValue2}), + }, + ], + }); + + t.match(composite, { + expose: { + dependencies: ['this'], + transform: Function, + compute: null, + }, + }); + + const myself = {foo: 'bar'}; + + t.same( + composite.expose.transform('banana', { + this: myself, + pomelo: 'delicious', + }), + { + me: myself, + updateValue1: 'banana', + updateValue2: 'banana', + }); +}); + +t.test(`compositeFrom: dependencies from inputs`, t => { + t.plan(3); + + const composite = compositeFrom({ + annotation: `myComposite`, + + compose: true, + + inputs: { + foo: input('bar'), + pomelo: input.value('delicious'), + humorous: input.dependency('#mammal'), + data: input.dependency('albumData'), + ref: input.updateValue(), + }, + + steps: [ + { + dependencies: [ + input('foo'), + input('pomelo'), + input('humorous'), + input('data'), + input('ref'), + ], + + compute: (continuation, { + [input('foo')]: foo, + [input('pomelo')]: pomelo, + [input('humorous')]: humorous, + [input('data')]: data, + [input('ref')]: ref, + }) => continuation.exit({foo, pomelo, humorous, data, ref}), + }, + ], + }); + + t.match(composite, { + expose: { + dependencies: [ + input('bar'), + '#mammal', + 'albumData', + ], + + transform: Function, + compute: null, + }, + }); + + const exitData = {}; + const continuation = { + exit(value) { + Object.assign(exitData, value); + return continuationSymbol; + }, + }; + + t.equal( + composite.expose.transform('album:bepis', continuation, { + [input('bar')]: 'squid time', + '#mammal': 'fox', + 'albumData': ['album1', 'album2'], + }), + continuationSymbol); + + t.same(exitData, { + foo: 'squid time', + pomelo: 'delicious', + humorous: 'fox', + data: ['album1', 'album2'], + ref: 'album:bepis', + }); +}); + +t.test(`compositeFrom: update from various sources`, t => { + t.plan(2); + + const match = { + flags: {update: true, expose: true, compose: false}, + + update: { + validate: isString, + default: 'foo', + }, + + expose: { + transform: Function, + compute: null, + }, + }; + + t.test(`compositeFrom: update from composition description`, t => { + t.plan(2); + + const composite = compositeFrom({ + compose: false, + + update: { + validate: isString, + default: 'foo', + }, + + steps: [ + {transform: (value, continuation) => continuation(value.repeat(2))}, + {transform: (value) => `Xx_${value}_xX`}, + ], + }); + + t.match(composite, match); + t.equal(composite.expose.transform('foo'), `Xx_foofoo_xX`); + }); + + t.test(`compositeFrom: update from step dependencies`, t => { + t.plan(2); + + const composite = compositeFrom({ + compose: false, + + steps: [ + { + dependencies: [ + input.updateValue({ + validate: isString, + default: 'foo', + }), + ], + + compute: ({ + [input.updateValue()]: value, + }) => `Xx_${value.repeat(2)}_xX`, + }, + ], + }); + + t.match(composite, match); + t.equal(debugComposite(() => composite.expose.transform('foo')), 'Xx_foofoo_xX'); + }); +}); |