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merge: Add proper tests for binary search (#987)

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* feat: added alternative binary search

* fix: exchange "dir" for "high"

* fix : fixing code style

* fix: fixed readability

* fix: fixed code smells

* fix: remove binary search alternative

* feat: added tests of binary search interative and recursive

* fix: fixed wrong identation

* fix: refactoring duplicated code of tests
This commit is contained in:
Carlos Rafael
2022-04-21 03:07:20 -03:00
committed by GitHub
parent 8fc53906e6
commit 298ab3366c
2 changed files with 49 additions and 39 deletions
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39
Search/BinarySearch.js
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@ -50,42 +50,3 @@ function binarySearchIterative (arr, x, low = 0, high = arr.length - 1) {
}
export { binarySearchIterative, binarySearchRecursive }
/* ---------------------------------- Test ---------------------------------- */
// const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
// const stringArr = [
// 'Alpha',
// 'Bravo',
// 'Charlie',
// 'Delta',
// 'Echo',
// 'Foxtrot',
// 'Golf',
// 'Hotel',
// 'India',
// 'Juliet',
// 'Kilo',
// 'Lima',
// 'Mike',
// 'November',
// 'Oscar',
// 'Papa',
// 'Quebec',
// 'Romeo',
// 'Sierra',
// 'Tango',
// 'Uniform',
// 'Victor',
// 'Whiskey',
// 'X-Ray',
// 'Yankee',
// 'Zulu'
// ]
// binarySearchRecursive(arr, 3)
// binarySearchIterative(arr, 7)
// binarySearchRecursive(arr, 13)
// binarySearchIterative(stringArr, 'Charlie')
// binarySearchRecursive(stringArr, 'Zulu')
// binarySearchIterative(stringArr, 'Sierra')

49
Search/test/BinarySearch.test.js Normal file
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@ -0,0 +1,49 @@
import { binarySearchIterative, binarySearchRecursive } from '../BinarySearch'
const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
const stringArr = [
'Alpha',
'Bravo',
'Charlie',
'Delta',
'Echo',
'Foxtrot',
'Golf',
'Hotel',
'India',
'Juliet',
'Kilo',
'Lima',
'Mike',
'November',
'Oscar',
'Papa',
'Quebec',
'Romeo',
'Sierra',
'Tango',
'Uniform',
'Victor',
'Whiskey',
'X-Ray',
'Yankee',
'Zulu'
]
describe('Binary Search', () => {
const funcs = [binarySearchIterative, binarySearchRecursive]
for (const func of funcs) {
test('expect to return the index of the item in the array', () => {
expect(func(arr, 3)).toBe(2)
})
test('expect to return -1 if not in array', () => {
expect(func(arr, 11)).toBe(-1)
})
test('expect to return the index of the item in the array', () => {
expect(func(stringArr, 'Charlie')).toBe(2)
})
test('expect to return -1 if not in array', () => {
expect(func(stringArr, 'Zoft')).toBe(-1)
})
}
})