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451 lines (449 loc) · 9.81 KB
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import functionPlot from '../../src/index.js'
import type {
ImplicitFunction,
LinearFunction,
ParametricFunction,
PointFunction,
PolarFunction,
TextFunction,
VectorFunction
} from '../../src/index.js'
// snippets is a list of tests to run in:
// - the image snapshot tests.
// - to test typescript types.
const snippets = [
{
testName: 'should render an x^2 graph',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
data: [{
fn: 'x^2',
graphType: 'polyline'
} as LinearFunction]
})
}
},
{
testName: 'should render with additional options',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
title: 'quadratic with options',
width: 580,
height: 400,
disableZoom: true,
x: {
label: 'x - axis',
domain: [-6, 6]
},
y: {
label: 'y - axis'
},
data: [{
fn: 'x^2'
} as LinearFunction]
})
}
},
{
testName: 'should render a grid',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
x: {
label: 'real',
grid: true
},
y: {
label: 'imaginary',
grid: true
},
data: [
{ fn: 'sqrt(1 - x * x)' } as LinearFunction,
{ fn: '-sqrt(1 - x * x)' } as LinearFunction
]
})
}
},
{
testName: 'should render with sticky axes',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
title: 'quadratic with different axes position',
width: 580,
height: 400,
x: {
position: 'sticky'
},
y: {
position: 'sticky'
},
data: [{
fn: 'x^2'
} as LinearFunction]
})
}
},
{
testName: 'should render distinct domains',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
y: { domain: [-1, 1] },
x: { domain: [8, 24] },
data: [{
fn: 'sin(x)'
} as LinearFunction]
})
}
},
{
testName: 'should evaluate with multiple samples',
fn: function () {
functionPlot({
target: '#playground',
data: [
{
fn: 'sin(x)',
nSamples: 1000
} as LinearFunction
]
})
}
},
{
testName: 'should render annotations',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
y: { domain: [-1, 9] },
data: [{
fn: 'x^2'
} as LinearFunction],
annotations: [{
x: -1
}, {
x: 1,
label: 'x = 1'
}, {
y: 2,
label: 'y = 2'
}]
})
}
},
{
testName: 'should render annotations as datum',
fn: function () {
functionPlot({
target: '#playground',
y: { domain: [-1, 9] },
data: [
{
fn: 'x^2'
},
functionPlot.annotation({ x: -1 }),
functionPlot.annotation({ x: 1, label: 'x = 1' }),
functionPlot.annotation({ y: 2, label: 'y = 2' })
]
})
}
},
{
testName: 'should render closed paths',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
x: { domain: [-2, 12] },
data: [{
fn: '3 + sin(x)',
range: [2, 8],
closed: true
} as LinearFunction]
})
}
},
{
testName: 'should render logarithmic scales',
fn: function () {
functionPlot({
target: '#playground',
x: {
type: 'log',
domain: [0.01, 1],
grid: true
},
y: {
domain: [-100, 100],
grid: true
},
data: [
{
fn: '1/x * cos(1/x)',
// to make it look like a definite integral
closed: true
} as LinearFunction
]
})
}
},
{
testName: 'should multiple graphs',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
data: [
{ fn: 'x', color: 'pink' } as LinearFunction,
{ fn: '-x' } as LinearFunction,
{ fn: 'x^2' } as LinearFunction,
{ fn: 'x^3' } as LinearFunction,
{ fn: 'x^4' } as LinearFunction
]
})
}
},
{
testName: 'should render different graph types',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
data: [
{
fn: '-sqrt(-x)',
nSamples: 100,
graphType: 'scatter'
} as LinearFunction,
{
fn: 'sqrt(x)',
graphType: 'polyline'
} as LinearFunction,
{
fn: 'x^2',
graphType: 'interval'
} as LinearFunction
]
})
}
},
{
testName: 'should render nth root',
fn: function () {
functionPlot({
target: '#playground',
data: [
{
fn: 'nthRoot(x, 3)^2'
}
]
})
}
},
{
testName: 'should render secants',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
y: { domain: [-1, 9] },
x: { domain: [-3, 3] },
data: [
{
fn: 'x^2',
secants: [
{ x0: 1, x1: 3 },
{ x0: 1, x1: 2.5 },
{ x0: 1, x1: 2 }
]
}
]
})
}
},
{
testName: 'should render derivative',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
y: { domain: [-1, 9] },
data: [
{
fn: 'x^2',
derivative: { fn: '2 * x', x0: 2 }
}
]
})
}
},
{
testName: 'should render a parametric function',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
y: { domain: [-1.897959183, 1.897959183] },
x: { domain: [-3, 3] },
data: [
{
x: 'cos(t)',
y: 'sin(t)',
fnType: 'parametric',
graphType: 'polyline'
} as ParametricFunction
]
})
}
},
{
testName: 'should render a polar function',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
y: { domain: [-1.897959183, 1.897959183] },
x: { domain: [-3, 3] },
data: [
{
r: 'r0 * cos(theta - gamma) + sqrt(a^2 - r0^2 * (sin(theta - gamma))^2)',
scope: {
a: 1,
r0: 0,
gamma: 0
},
fnType: 'polar',
graphType: 'polyline'
} as PolarFunction
]
})
}
},
{
testName: 'should render an implicit function',
fn: function () {
// prettier-ignore
functionPlot({
target: '#playground',
y: { domain: [-1.897959183, 1.897959183] },
x: { domain: [-3, 3] },
data: [
{
fn: 'x * x + y * y - 1',
fnType: 'implicit'
} as ImplicitFunction
]
})
}
},
{
testName: 'should render points',
fn: function () {
functionPlot({
target: '#playground',
data: [
{
points: [
[1, 1],
[2, 1],
[2, 2],
[1, 2],
[1, 1]
],
fnType: 'points',
graphType: 'scatter'
} as PointFunction
]
})
}
},
{
testName: 'should render vectors',
fn: function () {
functionPlot({
target: '#playground',
data: [
{
vector: [2, 1],
offset: [1, 2],
graphType: 'polyline',
fnType: 'vector'
} as VectorFunction
]
})
}
},
{
testName: 'should render text',
fn: function () {
functionPlot({
target: '#playground',
data: [
{
graphType: 'text',
location: [1, 1],
text: 'hello world'
} as TextFunction,
{
graphType: 'text',
location: [-1, -1],
text: 'foo bar',
attr: {
'text-anchor': 'end'
}
} as TextFunction
]
})
}
},
{
testName: 'should destroy the svg node on destroy',
fn: function () {
const destroyableInstance = functionPlot({
target: '#playground',
data: [{ fn: 'x^2' } as LinearFunction]
})
destroyableInstance.destroy()
}
},
{
testName: 'should render using the exported functions',
fn: function () {
functionPlot({
target: '#playground',
data: [
functionPlot.interval({ fn: 'x^2' }) as any,
functionPlot.scatter({ fn: 'sin(x)', nSamples: 50 }),
functionPlot.polyline({ fn: 'x^3' }),
functionPlot.text({ text: 'foo', location: [1, 2] })
]
})
}
},
{
testName: 'should render x^2 [async]',
fn: function () {
const nSamples = 1000
functionPlot.withWebWorkers(8)
functionPlot({
target: '#playground',
data: [
{ fn: 'x^2', sampler: 'asyncInterval', nSamples } as LinearFunction,
{ fn: 'x^3', sampler: 'asyncInterval', nSamples } as LinearFunction,
{ fn: '1/x', sampler: 'asyncInterval', nSamples } as LinearFunction,
{ fn: 'sin(x)', sampler: 'asyncInterval', nSamples } as LinearFunction
]
})
}
}
]
export { snippets }