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unit test for ChatMessageList main functionality

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Henry Jameson 2026-07-21 16:30:15 +03:00
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src/components/chat_message_list/chat_message_list.spec.js Normal file
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import { shallowMount } from '@vue/test-utils'
import ChatMessageList from './chat_message_list.vue'
describe('ChatMessageList', () => {
describe('computed.chatItems', () => {
it('Inserts date separators', () => {
const component = shallowMount(ChatMessageList, {
props: {
messages: [{
id: '1',
idempotency_key: '1',
account_id: 'Alice',
created_at: new Date('2020-06-22T20:00:00.000Z'),
}, {
id: '2',
idempotency_key: '2',
account_id: 'Alice',
created_at: new Date('2020-06-22T20:01:00.000Z'),
}, {
id: '3',
idempotency_key: '3',
account_id: 'Alice',
created_at: new Date('2020-06-23T20:00:00.000Z'),
}]
}
})
expect(component.vm.chatItems.map((i) => i.type)).to.eql([
'message',
'message',
'date',
'message',
])
})
it('Inserts date header if needed', () => {
const component = shallowMount(ChatMessageList, {
props: {
headerDate: true,
messages: [{
id: '1',
idempotency_key: '1',
account_id: 'Alice',
created_at: new Date('2020-06-23T20:00:00.000Z'),
}]
}
})
expect(component.vm.chatItems.map((i) => i.type)).to.eql([
'date',
'message',
])
})
it('Inserts time separators if messages were sent with considerable delay (5 minutes)', () => {
const component = shallowMount(ChatMessageList, {
props: {
messages: [{
id: '1',
idempotency_key: '1',
account_id: 'Alice',
created_at: new Date('2020-06-22T20:00:00.000Z'),
}, {
id: '2',
idempotency_key: '2',
account_id: 'Alice',
created_at: new Date('2020-06-22T20:06:00.000Z'),
}, {
id: '3',
idempotency_key: '3',
account_id: 'Alice',
created_at: new Date('2020-06-23T20:00:00.000Z'),
}]
}
})
expect(component.vm.chatItems.map((i) => i.type)).to.eql([
'message',
'date',
'message',
'date',
'message',
])
expect(component.vm.chatItems.map((i) => i.isTime)).to.eql([
undefined,
true,
undefined,
false,
undefined,
])
})
it('Groups message chains by time and author', () => {
const component = shallowMount(ChatMessageList, {
props: {
messages: [{
id: '1',
idempotency_key: '1',
account_id: 'Alice',
created_at: new Date('2020-06-22T20:00:00.000Z'),
}, {
id: '2',
idempotency_key: '2',
account_id: 'Alice',
created_at: new Date('2020-06-22T20:06:00.000Z'),
}, {
id: '3',
idempotency_key: '3',
account_id: 'Alice',
created_at: new Date('2020-06-23T20:00:00.000Z'),
}, {
id: '4',
account_id: 'Bob',
created_at: new Date('2020-06-23T20:01:00.000Z'),
}, {
id: '5',
account_id: 'Bob',
created_at: new Date('2020-06-23T20:02:00.000Z'),
}, {
id: '6',
account_id: 'Bob',
created_at: new Date('2020-06-23T20:03:00.000Z'),
}, {
id: '7',
account_id: 'Eve',
created_at: new Date('2020-06-23T20:04:00.000Z'),
}]
}
})
// Type check
expect(component.vm.chatItems.map((i) => i.type)).to.eql([
'message',
'date',
'message',
'date',
'message',
'message',
'message',
'message',
'message',
])
// Chain head/Tail checks
expect(component.vm.chatItems.map((i) => [i.isHead, i.isTail])).to.eql([
[true, true],
[undefined, undefined],
[true, true],
[undefined, undefined],
[true, true],
[true, false],
[false, false],
[false, true],
[true, true],
])
// Unique ID is randomly generated so we have to compare data against itself
// Two messages from Bob next to each other
expect(component.vm.chatItems[5].messageChainId).to.eql(component.vm.chatItems[6].messageChainId)
// Message from Even right after Bob
expect(component.vm.chatItems[7].messageChainId).to.not.eql(component.vm.chatItems[8].messageChainId)
})
})
})