Sync flatten-array tests (#1628)

Author: BNAndras

exercises/practice/flatten-array/.meta/tests.toml

@@ -1,10 +1,23 @@
-# This is an auto-generated file. Regular comments will be removed when this
-# file is regenerated. Regenerating will not touch any manually added keys,
-# so comments can be added in a "comment" key.
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[8c71dabd-da60-422d-a290-4a571471fb14]
+description = "empty"
 
 [d268b919-963c-442d-9f07-82b93f1b518c]
 description = "no nesting"
 
+[3f15bede-c856-479e-bb71-1684b20c6a30]
+description = "flattens a nested array"
+
 [c84440cc-bb3a-48a6-862c-94cf23f2815d]
 description = "flattens array with just integers present"
 
@@ -14,8 +27,37 @@ description = "5 level nesting"
 [d572bdba-c127-43ed-bdcd-6222ac83d9f7]
 description = "6 level nesting"
 
+[0705a8e5-dc86-4cec-8909-150c5e54fa9c]
+description = "null values are omitted from the final result"
+
+[c6cf26de-8ccd-4410-84bd-b9efd88fd2bc]
+description = "consecutive null values at the front of the list are omitted from the final result"
+include = false
+
+[bc72da10-5f55-4ada-baf3-50e4da02ec8e]
+description = "consecutive null values at the front of the array are omitted from the final result"
+reimplements = "c6cf26de-8ccd-4410-84bd-b9efd88fd2bc"
+
+[382c5242-587e-4577-b8ce-a5fb51e385a1]
+description = "consecutive null values in the middle of the list are omitted from the final result"
+include = false
+
+[6991836d-0d9b-4703-80a0-3f1f23eb5981]
+description = "consecutive null values in the middle of the array are omitted from the final result"
+reimplements = "382c5242-587e-4577-b8ce-a5fb51e385a1"
+
 [ef1d4790-1b1e-4939-a179-51ace0829dbd]
 description = "6 level nest list with null values"
+include = false
+
+[dc90a09c-5376-449c-a7b3-c2d20d540069]
+description = "6 level nested array with null values"
+reimplements = "ef1d4790-1b1e-4939-a179-51ace0829dbd"
 
 [85721643-705a-4150-93ab-7ae398e2942d]
 description = "all values in nested list are null"
+include = false
+
+[51f5d9af-8f7f-4fb5-a156-69e8282cb275]
+description = "all values in nested array are null"
+reimplements = "85721643-705a-4150-93ab-7ae398e2942d"

exercises/practice/flatten-array/flatten-array.test.ts

@@ -2,34 +2,61 @@ import { describe, it, expect, xit } from '@jest/globals'
 import { flatten } from './flatten-array.ts'
 
 describe('Flatten Array', () => {
-  it('no nesting', () => {
+  it('empty', () => {
+    const arr = []
+    const expected = []
+    expect(flatten(arr)).toEqual(expected)
+  })
+
+  xit('no nesting', () => {
+    const arr = [0, 1, 2]
     const expected = [0, 1, 2]
-    expect(flatten([0, 1, 2])).toEqual(expected)
+    expect(flatten(arr)).toEqual(expected)
+  })
+
+  xit('flattens a nested array', () => {
+    const arr = [[[]]]
+    const expected = []
+    expect(flatten(arr)).toEqual(expected)
   })
 
   xit('flattens array with just integers present', () => {
+    const arr = [1, [2, 3, 4, 5, 6, 7], 8]
     const expected = [1, 2, 3, 4, 5, 6, 7, 8]
-    expect(flatten([1, [2, 3, 4, 5, 6, 7], 8])).toEqual(expected)
+    expect(flatten(arr)).toEqual(expected)
   })
 
   xit('5 level nesting', () => {
+    const arr = [0, 2, [[2, 3], 8, 100, 4, [[[50]]]], -2]
     const expected = [0, 2, 2, 3, 8, 100, 4, 50, -2]
-    expect(flatten([0, 2, [[2, 3], 8, 100, 4, [[[50]]]], -2])).toEqual(expected)
+    expect(flatten(arr)).toEqual(expected)
   })
 
   xit('6 level nesting', () => {
+    const arr = [1, [2, [[3]], [4, [[5]]], 6, 7], 8]
     const expected = [1, 2, 3, 4, 5, 6, 7, 8]
-    expect(flatten([1, [2, [[3]], [4, [[5]]], 6, 7], 8])).toEqual(expected)
+    expect(flatten(arr)).toEqual(expected)
+  })
+
+  xit('consecutive null values at the front of the array are omitted from the final result', () => {
+    const arr = [undefined, undefined, 3]
+    const expected = [3]
+    expect(flatten(arr)).toEqual(expected)
+  })
+
+  xit('consecutive null values in the middle of the array are omitted from the final result', () => {
+    const arr = [1, undefined, undefined, 4]
+    const expected = [1, 4]
+    expect(flatten(arr)).toEqual(expected)
   })
 
-  xit('6 level nest list with null values', () => {
+  xit('6 level nest array with null values', () => {
+    const arr = [0, 2, [[2, 3], 8, [[100]], undefined, [[undefined]]], -2]
     const expected = [0, 2, 2, 3, 8, 100, -2]
-    expect(
-      flatten([0, 2, [[2, 3], 8, [[100]], undefined, [[undefined]]], -2])
-    ).toEqual(expected)
+    expect(flatten(arr)).toEqual(expected)
   })
 
-  xit('all values in nested list are null', () => {
+  xit('all values in nested array are null', () => {
     const expected: number[] = []
     expect(
       flatten([