feat: add hasAll()

ts/hasAll.spec.ts

@@ -0,0 +1,62 @@
+import t from 'assert'
+import a from 'assertron'
+import { createSatisfier, hasAll } from './index.js'
+
+test('non array returns false', () => {
+  a.false(createSatisfier(hasAll(1)).test(undefined))
+  a.false(createSatisfier(hasAll(1)).test(null))
+  a.false(createSatisfier(hasAll(1)).test(1))
+  a.false(createSatisfier(hasAll(1)).test(true))
+  a.false(createSatisfier(hasAll(1)).test('a'))
+  a.false(createSatisfier(hasAll({ a: 1 })).test(true))
+  a.false(createSatisfier(hasAll({ a: 1 })).test(1))
+  a.false(createSatisfier(hasAll({ a: 1 })).test('{ a: 1 }'))
+  a.false(createSatisfier(hasAll({ a: 1 })).test({ a: 1 }))
+})
+
+test('array with no match returns false', () => {
+  a.false(createSatisfier(hasAll(1)).test([2, 2, 3]))
+  a.false(createSatisfier(hasAll({ a: 1 })).test([{ b: 1 }]))
+})
+
+test('exact match array returns true', () => {
+  t(createSatisfier(hasAll(1)).test([1]))
+  t(createSatisfier(hasAll(false, false)).test([false, false]))
+  t(createSatisfier(hasAll('a', 'b')).test(['a', 'b']))
+  t(createSatisfier(hasAll({ a: 1 })).test([{ a: 1 }]))
+  t(createSatisfier(hasAll({ a: 1 })).test([{ b: 1 }, { a: 1 }]))
+})
+
+test('array with more than one match returns true', () => {
+  t(createSatisfier(hasAll({ a: 1 })).test([{ a: 1 }, { a: 1 }]))
+  t(createSatisfier(hasAll({ a: 1 })).test([{ b: 1 }, { a: 1 }, { a: 1 }, 'x']))
+})
+
+it('is true if all entries are in the target', () => {
+  t(createSatisfier(hasAll(1)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(2)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(3)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(1, 2)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(1, 3)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(2, 3)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(2, 1)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(3, 1)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(3, 1)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(1, 2, 3)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(1, 3, 2)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(2, 1, 3)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(2, 3, 1)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(3, 1, 2)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(3, 2, 1)).test([1, 2, 3]))
+})
+
+it('is true even if there are duplicates in expectation', () => {
+  t(createSatisfier(hasAll(1, 1)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(1, 1, 2)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(1, 2, 1)).test([1, 2, 3]))
+  t(createSatisfier(hasAll(2, 1, 1)).test([1, 2, 3]))
+})
+
+test('tersify()', () => {
+  t.strictEqual(hasAll({ a: 1 }, { b: 2 }).tersify(), 'hasAll({ a: 1 }, { b: 2 })')
+})

ts/hasAll.ts

@@ -0,0 +1,12 @@
+import { tersible, tersify } from 'tersify'
+import { some } from './some.js'
+
+/**
+ * Check if an array has all of the expected entries, regardless of order.
+ */
+export function hasAll(...expectations: any[]) {
+  return tersible((arr: any) => {
+    if (!Array.isArray(arr)) return false
+    return expectations.every(e => some(e)(arr))
+  }, () => `hasAll(${expectations.map(e => tersify(e)).join(', ')})`)
+}

ts/index.ts

@@ -3,6 +3,7 @@ export * from './createSatisfier.js'
 export * from './every.js'
 export * from './formatDiffs.js'
 export * from './has.js'
+export * from './hasAll.js'
 export * from './interfaces.js'
 export * from './isInInterval.js'
 export * from './isInRange.js'