Files
DefinitelyTyped/types/d3-interpolate/d3-interpolate-tests.ts
2017-08-17 14:53:41 -07:00

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TypeScript

/**
* Typescript definition tests for d3/d3-interpolate module
*
* Note: These tests are intended to test the definitions only
* in the sense of typing and call signature consistency. They
* are not intended as functional tests.
*/
import * as d3Color from 'd3-color';
import * as d3Interpolate from 'd3-interpolate';
import * as d3Hsv from 'd3-hsv';
// Preparatory steps -------------------------------------------------------------------
interface Interpolator<T> {
(t: number): T;
}
class NumCoercible {
a: number;
constructor(a: number) {
this.a = a;
}
valueOf() {
return this.a;
}
}
class StringCoercible {
a: string;
constructor(a: string) {
this.a = a;
}
toString() {
return this.a;
}
}
let iNum: Interpolator<number>;
let iString: Interpolator<string>;
let iDate: Interpolator<Date>;
let iArrayNum: Interpolator<number[]>;
let iArrayStr: Interpolator<string[]>;
let iArrayMixed: Interpolator<[Date, string]>;
let iKeyVal: Interpolator<{ [key: string]: any }>;
let iRGBColorObj: Interpolator<d3Color.RGBColor>;
let iZoom: d3Interpolate.ZoomInterpolator;
let num: number;
let str: string;
let arrNum: number[];
let arrStr: string[];
let objKeyVal: { [key: string]: any };
let objRGBColor: d3Color.RGBColor;
let zoom: [number, number, number];
// test interpolate(a, b) signature ----------------------------------------------------
iNum = d3Interpolate.interpolate('1', 5);
// color interpolator returning a color string
iString = d3Interpolate.interpolate('seagreen', d3Color.rgb(100, 100, 100));
iString = d3Interpolate.interpolate('seagreen', d3Hsv.hsv(60, 1, 0.2, 0.4));
iString = d3Interpolate.interpolate('seagreen', 'steelblue'); // as used with valid color name string
// date interpolator
iDate = d3Interpolate.interpolate(new Date(2016, 6, 1), new Date(2016, 6, 31));
// regular string interpolator interpolating number strings (as the strings are not valid color strings)
iString = d3Interpolate.interpolate(1, '5');
iString = d3Interpolate.interpolate('a: 1', 'a: 5');
iString = d3Interpolate.interpolate(new StringCoercible('a: 1'), 'a: 5');
iArrayNum = d3Interpolate.interpolate(['1', '2'], [4, 8]);
iArrayStr = d3Interpolate.interpolate(['1', '2'], ['4', '8']);
// two element array with first element date and second element string
iArrayMixed = d3Interpolate.interpolate<[Date, string]>([new Date(2016, 6, 1), 'b: 2'], [new Date(2016, 6, 31), 'b: 8']);
// Coercible to number
iNum = d3Interpolate.interpolate(12, new NumCoercible(20));
iNum = d3Interpolate.interpolate(new NumCoercible(2), new NumCoercible(20));
// Key Value
iKeyVal = d3Interpolate.interpolate({ x: 0, y: 1 }, { x: 1, y: 10, z: 100 });
d3Interpolate.interpolate<NumCoercible>(new NumCoercible(1), new NumCoercible(5));
d3Interpolate.interpolate<NumCoercible>({ a: 1 }, new NumCoercible(5));
// test interpolateNumber(a, b) signature ----------------------------------------------------
iNum = d3Interpolate.interpolateNumber(0, 100);
iNum = d3Interpolate.interpolateNumber(new NumCoercible(0), new NumCoercible(100));
num = iNum(0.5);
// test interpolateNumber(a, b) signature ----------------------------------------------------
iNum = d3Interpolate.interpolateRound(0, 100);
iNum = d3Interpolate.interpolateRound(new NumCoercible(0), new NumCoercible(100));
num = iNum(0.5);
// test interpolateString(a, b) signature ----------------------------------------------------
iString = d3Interpolate.interpolateString('-1', '2');
str = iString(0.5);
// test interpolateDate(a, b) signature ----------------------------------------------------
iDate = d3Interpolate.interpolateDate(new Date(2016, 6, 1), new Date(2016, 6, 31));
// test interpolateArray(a, b) signature ----------------------------------------------------
iArrayNum = d3Interpolate.interpolateArray<number[]>([1, 2], [4, 8]); // explicit typing
arrNum = iArrayNum(0.5);
iArrayNum = d3Interpolate.interpolateArray<[number, number]>(['1', '2'], [4, 8]); // explicit typing
arrNum = iArrayNum(0.5);
iArrayStr = d3Interpolate.interpolateArray<string[]>(['1', '2'], ['4', '8']); // explicit typing
arrStr = iArrayStr(0.5);
iArrayStr = d3Interpolate.interpolateArray([1, 2], ['4', '8']); // infered typing <string>
arrStr = iArrayStr(0.5);
// two element array with first element date and second element string
iArrayMixed = d3Interpolate.interpolateArray<[Date, string]>([new Date(2016, 6, 1), 'b: 1'], [new Date(2016, 6, 31), 'b: 8']);
// test interpolateObject(a, b) signature ----------------------------------------------------
iKeyVal = d3Interpolate.interpolateObject({ x: 0, y: 1 }, { x: 1, y: 10, z: 100 });
objKeyVal = iKeyVal(0.5);
iRGBColorObj = d3Interpolate.interpolateObject<d3Color.RGBColor>(d3Color.rgb('steelblue'), d3Color.rgb('seagreen'));
objRGBColor = iRGBColorObj(0.5);
// test interpolateTransformCss(a, b) signature ----------------------------------------------------
iString = d3Interpolate.interpolateTransformCss('rotate(0deg)', 'rotate(60deg)');
str = iString(0.5);
// test interpolateTransformSvg(a, b) signature ----------------------------------------------------
iString = d3Interpolate.interpolateTransformSvg('rotate(0)', 'rotate(60)');
str = iString(0.5);
// test interpolateZoom(a, b) signature ----------------------------------------------------
iZoom = d3Interpolate.interpolateZoom([50, 50, 300], [100, 100, 500]);
zoom = iZoom(0.5);
console.log('Recommended transition duration = %d', iZoom.duration);
// test quantize(interpolator, n) signature ------------------------------------------------
arrNum = d3Interpolate.quantize(d3Interpolate.interpolateRound(-1, 2), 4); // infered template parameter type
arrStr = d3Interpolate.quantize<string>(d3Interpolate.interpolateString('-1', '2'), 4); // explicit template parameter typing
// arrStr = d3Interpolate.quantize<string>(d3Interpolate.interpolateRound(-1, 2), 4); // test fails, due to explicit typing v argument type mismatch
// test interpolateRgb(a, b) signatures ----------------------------------------------------------------
// without gamma correction
iString = d3Interpolate.interpolateRgb('seagreen', 'steelblue');
iString = d3Interpolate.interpolateRgb(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateRgb(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
str = iString(0.5);
// with gamma correction
iString = d3Interpolate.interpolateRgb.gamma(2.2)('purple', 'orange');
// test interpolateRgbBasis(color) and interpolateRgbBasisClosed(color) signatures -------------------------
iString = d3Interpolate.interpolateRgbBasis(['seagreen', d3Color.rgb('steelblue'), 'rgb(100, 100, 100)']);
iString = d3Interpolate.interpolateRgbBasis(['seagreen', d3Hsv.hsv('steelblue'), 'rgb(100, 100, 100)']);
iString = d3Interpolate.interpolateRgbBasisClosed(['seagreen', d3Hsv.hsv('steelblue'), 'rgb(100, 100, 100)']);
// test interpolateHsl(a, b) and interpolateHslLong(a, b)----------------------------------------------------------------
iString = d3Interpolate.interpolateHsl('seagreen', 'steelblue');
iString = d3Interpolate.interpolateHsl(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateHsl(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
iString = d3Interpolate.interpolateHslLong('seagreen', 'steelblue');
iString = d3Interpolate.interpolateHslLong(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateHslLong(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
// test interpolateLab(a, b) --------------------------------------------------------------------------------------------
iString = d3Interpolate.interpolateLab('seagreen', 'steelblue');
iString = d3Interpolate.interpolateLab(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateLab(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
// test interpolateHcl(a, b) and interpolateHclLong(a, b) ----------------------------------------------------------------
iString = d3Interpolate.interpolateHcl('seagreen', 'steelblue');
iString = d3Interpolate.interpolateHcl(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateHcl(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
iString = d3Interpolate.interpolateHclLong('seagreen', 'steelblue');
iString = d3Interpolate.interpolateHclLong(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateHclLong(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
// test interpolateCubehelix(a, b) and interpolateCubehelixLong(a, b) ---------------------------------------------------
// without gamma correction
iString = d3Interpolate.interpolateCubehelix('seagreen', 'steelblue');
iString = d3Interpolate.interpolateCubehelix(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateCubehelix(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
str = iString(0.5);
// with gamma correction
iString = d3Interpolate.interpolateCubehelix.gamma(2.2)('purple', 'orange');
// without gamma correction
iString = d3Interpolate.interpolateCubehelixLong('seagreen', 'steelblue');
iString = d3Interpolate.interpolateCubehelixLong(d3Color.rgb('seagreen'), d3Color.hcl('steelblue'));
iString = d3Interpolate.interpolateCubehelixLong(d3Color.rgb('seagreen'), d3Hsv.hsv('steelblue'));
str = iString(0.5);
// with gamma correction
iString = d3Interpolate.interpolateCubehelixLong.gamma(2.2)('purple', 'orange');
// test interpolateBasis(splineNodes) and interpolateBasisClosed(splineNodes: number[]) ----------------------------
iNum = d3Interpolate.interpolateBasis([1, 50, 30, 10]);
iNum = d3Interpolate.interpolateBasisClosed([1, 50, 30, 10]);