modeling-app/src/lang/std/sketch.test.ts

import {
  changeSketchArguments,
  addTagForSketchOnFace,
  addNewSketchLn,
  getYComponent,
  getXComponent,
  addCloseToPipe,
} from './sketch'
import { parse, recast, initPromise } from '../wasm'
import { getNodePathFromSourceRange } from '../queryAst'
import { enginelessExecutor } from '../../lib/testHelpers'

const eachQuad: [number, [number, number]][] = [
  [-315, [1, 1]],
  [-225, [-1, 1]],
  [-135, [-1, -1]],
  [-45, [1, -1]],
  [45, [1, 1]],
  [135, [-1, 1]],
  [225, [-1, -1]],
  [315, [1, -1]],
  [405, [1, 1]],
  [495, [-1, 1]],
  [585, [-1, -1]],
  [675, [1, -1]],
]

beforeAll(() => initPromise)

describe('testing getYComponent', () => {
  it('should return the vertical component of a vector correctly when given angles in each quadrant (and with angles < 0, or > 360)', () => {
    const expected: [number, number][] = []
    const results: [number, number][] = []
    eachQuad.forEach(([angle, expectedResult]) => {
      results.push(
        getYComponent(angle, 1).map((a) => Math.round(a)) as [number, number]
      )
      expected.push(expectedResult)
    })
    expect(results).toEqual(expected)
  })
  it('return extreme values on the extremes', () => {
    let result: [number, number]
    result = getYComponent(0, 1)
    expect(result[0]).toBe(1)
    expect(result[1]).toBe(0)

    result = getYComponent(90, 1)
    expect(result[0]).toBe(1)
    expect(result[1]).toBeGreaterThan(100000)

    result = getYComponent(180, 1)
    expect(result[0]).toBe(-1)
    expect(result[1]).toBeCloseTo(0)

    result = getYComponent(270, 1)
    expect(result[0]).toBe(-1)
    expect(result[1]).toBeLessThan(100000)
  })
})

describe('testing getXComponent', () => {
  it('should return the horizontal component of a vector correctly when given angles in each quadrant (and with angles < 0, or > 360)', () => {
    const expected: [number, number][] = []
    const results: [number, number][] = []
    eachQuad.forEach(([angle, expectedResult]) => {
      results.push(
        getXComponent(angle, 1).map((a) => Math.round(a)) as [number, number]
      )
      expected.push(expectedResult)
    })
    expect(results).toEqual(expected)
  })
  it('return extreme values on the extremes', () => {
    let result: [number, number]
    result = getXComponent(0, 1)
    expect(result[0]).toBeGreaterThan(100000)
    expect(result[1]).toBe(1)

    result = getXComponent(90, 1)
    expect(result[0]).toBeCloseTo(0)
    expect(result[1]).toBe(1)

    result = getXComponent(180, 1)
    expect(result[0]).toBeLessThan(100000)
    expect(result[1]).toBe(1)

    result = getXComponent(270, 1)
    expect(result[0]).toBeCloseTo(0)
    expect(result[1]).toBe(-1)
  })
})

describe('testing changeSketchArguments', () => {
  const lineToChange = 'lineTo([-1.59, -1.54], %)'
  const lineAfterChange = 'lineTo([2, 3], %)'
  test('changeSketchArguments', async () => {
    // Enable rotations #152
    const genCode = (line: string) => `const mySketch001 = startSketchOn('XY')
  |> startProfileAt([0, 0], %)
  |> ${line}
  |> lineTo([0.46, -5.82], %)
  // |> rx(45, %)
show(mySketch001)
`
    const code = genCode(lineToChange)
    const expectedCode = genCode(lineAfterChange)
    const ast = parse(code)
    const programMemory = await enginelessExecutor(ast)
    const sourceStart = code.indexOf(lineToChange)
    const { modifiedAst } = changeSketchArguments(
      ast,
      programMemory,
      [sourceStart, sourceStart + lineToChange.length],
      [2, 3],
      [0, 0]
    )
    expect(recast(modifiedAst)).toBe(expectedCode)
  })
})

describe('testing addNewSketchLn', () => {
  const lineToChange = 'lineTo([-1.59, -1.54], %)'
  test('addNewSketchLn', async () => {
    // Enable rotations #152
    const code = `
const mySketch001 = startSketchOn('XY')
  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
show(mySketch001)`
    const ast = parse(code)
    const programMemory = await enginelessExecutor(ast)
    const sourceStart = code.indexOf(lineToChange)
    expect(sourceStart).toBe(95)
    let { modifiedAst } = addNewSketchLn({
      node: ast,
      programMemory,
      to: [2, 3],
      from: [0, 0],
      fnName: 'lineTo',
      pathToNode: [
        ['body', ''],
        [0, 'index'],
        ['declarations', 'VariableDeclaration'],
        [0, 'index'],
        ['init', 'VariableDeclarator'],
      ],
    })
    // Enable rotations #152
    let expectedCode = `const mySketch001 = startSketchOn('XY')
  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
  |> lineTo([2, 3], %)
show(mySketch001)
`
    expect(recast(modifiedAst)).toBe(expectedCode)

    modifiedAst = addCloseToPipe({
      node: ast,
      programMemory,
      pathToNode: [
        ['body', ''],
        [0, 'index'],
        ['declarations', 'VariableDeclaration'],
        [0, 'index'],
        ['init', 'VariableDeclarator'],
      ],
    })

    expectedCode = `const mySketch001 = startSketchOn('XY')
  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
  |> close(%)
show(mySketch001)
`
    expect(recast(modifiedAst)).toBe(expectedCode)
  })
})

describe('testing addTagForSketchOnFace', () => {
  it('needs to be in it', async () => {
    const originalLine = 'lineTo([-1.59, -1.54], %)'
    // Enable rotations #152
    const genCode = (line: string) => `const mySketch001 = startSketchOn('XY')
  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> ${line}
  |> lineTo([0.46, -5.82], %)
show(mySketch001)
`
    const code = genCode(originalLine)
    const ast = parse(code)
    const programMemory = await enginelessExecutor(ast)
    const sourceStart = code.indexOf(originalLine)
    const sourceRange: [number, number] = [
      sourceStart,
      sourceStart + originalLine.length,
    ]
    const pathToNode = getNodePathFromSourceRange(ast, sourceRange)
    const { modifiedAst } = addTagForSketchOnFace(
      {
        previousProgramMemory: programMemory,
        pathToNode,
        node: ast,
      },
      'lineTo'
    )
    const expectedCode = genCode(
      "lineTo({ to: [-1.59, -1.54], tag: 'seg01' }, %)"
    )
    expect(recast(modifiedAst)).toBe(expectedCode)
  })
})