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chore: add range.cy.ts #6665

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Feb 8, 2024
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chore: add range.cy.ts #6665

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314 changes: 314 additions & 0 deletions projects/demo-cypress/src/tests/range.cy.ts
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import {Component, ElementRef, ViewChild} from '@angular/core';
import {ComponentFixture} from '@angular/core/testing';
import {FormControl, ReactiveFormsModule} from '@angular/forms';
import {TuiRootModule} from '@taiga-ui/core';
import {TuiKeySteps, TuiRangeComponent, TuiRangeModule} from '@taiga-ui/kit';

describe('TuiRange', () => {
let component: TestComponent;
let fixture: ComponentFixture<TestComponent>;

@Component({
template: `
<tui-root>
<tui-range
[formControl]="testValue"
[keySteps]="keySteps"
[max]="max"
[min]="min"
[segments]="segments"
[step]="step"
></tui-range>
</tui-root>
`,
})
class TestComponent {
@ViewChild(TuiRangeComponent, {static: true})
component!: TuiRangeComponent;

@ViewChild(TuiRangeComponent, {static: true, read: ElementRef})
el!: ElementRef<HTMLElement>;

testValue = new FormControl([3, 5]);
max = 11;
min = 1;
segments = 10;
step = 1;
keySteps: TuiKeySteps | null = null;
}

beforeEach(() => {
cy.mount(TestComponent, {
imports: [TuiRootModule, TuiRangeModule, ReactiveFormsModule],
}).then(wrapper => {
component = wrapper.component;
fixture = wrapper.fixture;
});

cy.get('[automation-id="tui-range__left"]').as('leftThumb');
cy.get('[automation-id="tui-range__right"]').as('rightThumb');
});

it('The bar is filled from 20% to 60%', () => {
expect(getFilledRangeOffset(component).left).to.equal('20%');
expect(getFilledRangeOffset(component).right).to.equal('60%');
});

describe('Changing values', () => {
describe('Left point', () => {
it('Pressing the left arrow decreases the value by one step', () => {
cy.get('@leftThumb')
.focus()
.type('{leftArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(2);
expect(component.testValue.value?.[1]).to.equal(5);
});
});

it('Pressing the right arrow increases the value by one step', () => {
cy.get('@leftThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(4);
expect(component.testValue.value?.[1]).to.equal(5);
});
});

it('Pressing the left arrow correctly paints the strip', () => {
cy.get('@leftThumb')
.focus()
.type('{leftArrow}')
.then(() => {
expect(getFilledRangeOffset(component).left).to.equal('10%');
expect(getFilledRangeOffset(component).right).to.equal('60%');
});
});

it('Pressing the right arrow correctly paints the strip', () => {
cy.get('@leftThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(getFilledRangeOffset(component).left).to.equal('30%');
expect(getFilledRangeOffset(component).right).to.equal('60%');
});
});
});
});

describe('Right point', () => {
it('Pressing the left arrow decreases the value by one step', () => {
cy.get('@rightThumb')
.focus()
.type('{leftArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(3);
expect(component.testValue.value?.[1]).to.equal(4);
});
});

it('Pressing the right arrow increases the value by one step', () => {
cy.get('@rightThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(3);
expect(component.testValue.value?.[1]).to.equal(6);
});
});

it('Pressing the left arrow correctly paints the strip', () => {
cy.get('@rightThumb')
.focus()
.type('{leftArrow}')
.then(() => {
expect(getFilledRangeOffset(component).left).to.equal('20%');
expect(getFilledRangeOffset(component).right).to.equal('70%');
});
});

it('Pressing the right arrow correctly paints the strip', () => {
cy.get('@rightThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(getFilledRangeOffset(component).left).to.equal('20%');
expect(getFilledRangeOffset(component).right).to.equal('50%');
});
});
});

describe('Borders', () => {
it('Prevents the left border from exceeding the right', () => {
component.testValue.setValue([5, 5]);
cy.get('@leftThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(5);
expect(component.testValue.value?.[0]).to.equal(5);
});
});

it('Prevents the right border from dropping below the left', () => {
component.testValue.setValue([5, 5]);
cy.get('@rightThumb')
.focus()
.type('{leftArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(5);
expect(component.testValue.value?.[1]).to.equal(5);
});
});

it('Prevents the value from decreasing below the minimum', () => {
component.testValue.setValue([1, 11]);
cy.get('@leftThumb')
.focus()
.type('{leftArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(1);
});
});

it('Prevents the value from exceeding the maximum', () => {
component.testValue.setValue([1, 11]);
cy.get('@rightThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(component.testValue.value?.[1]).to.equal(11);
});
});

it('Adds a value to the closest allowed step', () => {
component.testValue.setValue([3.3, 5]);
cy.get('@leftThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(4);
});
});
});

describe('[step] prop', () => {
beforeEach(() => {
component.min = 0;
component.max = 10;
component.step = 0.1;
component.testValue.setValue([1, 5]);
});

it('Pressing the right arrow increases the value by one step (step = 1)', () => {
cy.get('@leftThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(1.1);
});
});

it('Pressing the left arrow decreases the value by one step', () => {
cy.get('@rightThumb')
.focus()
.type('{leftArrow}')
.then(() => {
expect(component.testValue.value?.[1]).to.equal(4.9);
});
});

it('Pressing the right arrow increases the value by one step (step = 3)', () => {
component.testValue.setValue([0, 10]);
component.step = 3;
cy.get('@leftThumb')
.focus()
.type('{rightArrow}')
.then(() => {
expect(component.testValue.value?.[0]).to.equal(3);
});
});
});

describe('keySteps', () => {
beforeEach(() => {
component.keySteps = [
[0, 0],
[25, 10_000],
[50, 100_000],
[75, 500_000],
[100, 1_000_000],
];
component.step = (component.max - component.min) / 10;
component.testValue.setValue([0, 0]);
fixture.detectChanges();
});

const testsContexts = [
{
value: [0, 10_000],
leftOffset: '0%',
rightOffset: '75%',
},
{
value: [10_000, 10_000],
leftOffset: '25%',
rightOffset: '75%',
},
{
value: [10_000, 100_000],
leftOffset: '25%',
rightOffset: '50%',
},
{
value: [100_000, 100_000],
leftOffset: '50%',
rightOffset: '50%',
},
{
value: [100_000, 500_000],
leftOffset: '50%',
rightOffset: '25%',
},
{
value: [500_000, 500_000],
leftOffset: '75%',
rightOffset: '25%',
},
{
value: [500_000, 750_000],
leftOffset: '75%',
rightOffset: '12.5%',
},
{
value: [750_000, 1_000_000],
leftOffset: '87.5%',
rightOffset: '0%',
},
] as const;

testsContexts.forEach(({value, leftOffset, rightOffset}) => {
it(`${JSON.stringify(value)}`, () => {
component.testValue.setValue(value as unknown as number[]);
fixture.detectChanges();

expect(getFilledRangeOffset(component).left).to.equal(leftOffset);
expect(getFilledRangeOffset(component).right).to.equal(rightOffset);
});
});
});

function getFilledRangeOffset(component: TestComponent): {
left: string;
right: string;
} {
const computedStyles = component.el.nativeElement;

return {
left: getComputedStyle(computedStyles).getPropertyValue('--left'),
right: getComputedStyle(computedStyles).getPropertyValue('--right'),
};
}
});
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