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86d333ee94
* chore: Switch to Node 20 + Vitest * chore: migrate to vitest mock functions * chore: code style (switch to prettier) * test: re-enable long-running test Seems the switch to Node 20 and Vitest has vastly improved the code's and / or the test's runtime! see #1193 * chore: code style * chore: fix failing tests * Updated Documentation in README.md * Update contribution guidelines to state usage of Prettier * fix: set prettier printWidth back to 80 * chore: apply updated code style automatically * fix: set prettier line endings to lf again * chore: apply updated code style automatically --------- Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>
92 lines
3.0 KiB
JavaScript
92 lines
3.0 KiB
JavaScript
import { breadthFirstSearch, depthFirstSearch } from '../FloodFill'
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// some constants
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const black = [0, 0, 0]
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const green = [0, 255, 0]
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const violet = [255, 0, 255]
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const white = [255, 255, 255]
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const orange = [255, 128, 0]
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describe('FloodFill', () => {
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it('should calculate the correct colors using breadth-first approach', () => {
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expect(testBreadthFirst([1, 1], green, orange, [1, 1])).toEqual(orange)
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expect(testBreadthFirst([1, 1], green, orange, [0, 1])).toEqual(violet)
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expect(testBreadthFirst([1, 1], green, orange, [6, 4])).toEqual(white)
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})
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it('should calculate the correct colors using depth-first approach', () => {
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expect(testDepthFirst([1, 1], green, orange, [1, 1])).toEqual(orange)
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expect(testDepthFirst([1, 1], green, orange, [0, 1])).toEqual(violet)
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expect(testDepthFirst([1, 1], green, orange, [6, 4])).toEqual(white)
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})
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})
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/**
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* Utility-function to test the function "breadthFirstSearch".
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*
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* @param fillLocation The start location on the image where the flood fill is applied.
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* @param targetColor The old color to be replaced.
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* @param replacementColor The new color to replace the old one.
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* @param testLocation The location of the color to be checked.
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* @return The color at testLocation.
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*/
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function testBreadthFirst(
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fillLocation,
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targetColor,
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replacementColor,
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testLocation
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) {
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const rgbData = generateTestRgbData()
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breadthFirstSearch(rgbData, fillLocation, targetColor, replacementColor)
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return rgbData[testLocation[0]][testLocation[1]]
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}
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/**
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* Utility-function to test the function "depthFirstSearch".
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*
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* @param fillLocation The start location on the image where the flood fill is applied.
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* @param targetColor The old color to be replaced.
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* @param replacementColor The new color to replace the old one.
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* @param testLocation The location of the color to be checked.
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* @return The color at testLocation.
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*/
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function testDepthFirst(
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fillLocation,
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targetColor,
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replacementColor,
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testLocation
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) {
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// eslint-disable-line
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const rgbData = generateTestRgbData()
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depthFirstSearch(rgbData, fillLocation, targetColor, replacementColor)
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return rgbData[testLocation[0]][testLocation[1]]
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}
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/**
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* Generates the rgbData-matrix for the tests.
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*
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* @return example rgbData-matrix.
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*/
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function generateTestRgbData() {
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const layout = [
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[violet, violet, green, green, black, green, green],
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[violet, green, green, black, green, green, green],
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[green, green, green, black, green, green, green],
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[black, black, green, black, white, white, green],
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[violet, violet, black, violet, violet, white, white],
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[green, green, green, violet, violet, violet, violet],
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[violet, violet, violet, violet, violet, violet, violet]
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]
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// transpose layout-matrix so the x-index comes before the y-index
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const transposed = []
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for (let x = 0; x < layout[0].length; x++) {
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transposed[x] = []
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for (let y = 0; y < layout.length; y++) {
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transposed[x][y] = layout[y][x]
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}
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}
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return transposed
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}
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