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tests.ts
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tests.ts
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import testMatrix from './_matrix'
/* eslint-disable @typescript-eslint/no-unused-vars */
// @ts-ignore this is just for type checks
declare let prisma: import('@prisma/client').PrismaClient
testMatrix.setupTestSuite(
(suiteConfig, suiteMeta) => {
describe('issue 16390', () => {
afterEach(async () => {
// Start from a clean state
await prisma.item.deleteMany({})
await prisma.category.deleteMany({})
if (suiteConfig['provider'] === 'mysql') {
await prisma.$executeRaw`TRUNCATE TABLE \`_CategoryToItem\`;`
} else {
await prisma.$executeRaw`TRUNCATE TABLE "_CategoryToItem";`
}
})
afterAll(async () => {
await prisma.$disconnect()
})
test('when deleting an item, the corresponding entry in the implicit pivot table should be deleted', async () => {
// Create one category
const category = await prisma.category.create({
data: {},
})
expect(category).toMatchObject({
id: 1,
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Create one item linked to the category
const item = await prisma.item.create({
data: {
categories: {
connect: {
id: category.id,
},
},
},
include: {
categories: true,
},
})
expect(item).toMatchObject({
categories: [{ id: 1, createdAt: expect.any(Date), updatedAt: expect.any(Date) }],
id: 1,
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Check the pivot table entries
let pivotTable
if (suiteConfig['provider'] === 'mysql') {
pivotTable = await prisma.$queryRaw`SELECT * FROM \`_CategoryToItem\`;`
} else {
pivotTable = await prisma.$queryRaw`SELECT * FROM "_CategoryToItem";`
}
expect(pivotTable).toMatchInlineSnapshot(`
Array [
Object {
A: 1,
B: 1,
},
]
`)
// Delete the item
expect(
await prisma.item.delete({
where: {
id: item.id,
},
}),
).toMatchObject({
id: 1,
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Item query now returns null
expect(
await prisma.item.findUnique({
where: {
id: item.id,
},
include: {
categories: true,
},
}),
).toBeNull()
// Category has no items
expect(
await prisma.category.findUnique({
where: {
id: category.id,
},
include: {
items: true,
},
}),
).toMatchObject({
id: 1,
items: [],
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Everything looks good but....
// Let's check the pivot table
// Check the pivot table entries
let pivotTableAfterDelete
if (suiteConfig['provider'] === 'mysql') {
pivotTableAfterDelete = await prisma.$queryRaw`SELECT * FROM \`_CategoryToItem\`;`
} else {
pivotTableAfterDelete = await prisma.$queryRaw`SELECT * FROM "_CategoryToItem";`
}
// ... the pivot table entry is still there!
// This is a bug in the relationMode="prisma" emulation
if (suiteConfig.relationMode === 'prisma') {
expect(pivotTableAfterDelete).toStrictEqual([
{
A: 1,
B: 1,
},
])
} else {
// This is the expected behavior for prisma and foreignKeys
// once this bug is fixed
expect(pivotTableAfterDelete).toStrictEqual([])
}
})
})
test('when deleting a category, the corresponding entry in the implicit pivot table should be deleted', async () => {
// Create one category
const category = await prisma.category.create({
data: {},
})
expect(category).toMatchObject({
id: 2,
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Create one item linked to the category
const item = await prisma.item.create({
data: {
categories: {
connect: {
id: category.id,
},
},
},
include: {
categories: true,
},
})
expect(item).toMatchObject({
categories: [{ id: 2, createdAt: expect.any(Date), updatedAt: expect.any(Date) }],
id: 2,
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Check the pivot table entries
let pivotTable
if (suiteConfig['provider'] === 'mysql') {
pivotTable = await prisma.$queryRaw`SELECT * FROM \`_CategoryToItem\`;`
} else {
pivotTable = await prisma.$queryRaw`SELECT * FROM "_CategoryToItem";`
}
expect(pivotTable).toMatchInlineSnapshot(`
Array [
Object {
A: 2,
B: 2,
},
]
`)
// Delete the category
expect(
await prisma.category.delete({
where: {
id: item.id,
},
}),
).toMatchObject({
id: 2,
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Category query now returns null
expect(
await prisma.category.findUnique({
where: {
id: category.id,
},
include: {
items: true,
},
}),
).toBeNull()
// Item has no category
expect(
await prisma.item.findUnique({
where: {
id: item.id,
},
include: {
categories: true,
},
}),
).toMatchObject({
id: 2,
categories: [],
createdAt: expect.any(Date),
updatedAt: expect.any(Date),
})
// Everything looks good but....
// Let's check the pivot table
// Check the pivot table entries
let pivotTableAfterDelete
if (suiteConfig['provider'] === 'mysql') {
pivotTableAfterDelete = await prisma.$queryRaw`SELECT * FROM \`_CategoryToItem\`;`
} else {
pivotTableAfterDelete = await prisma.$queryRaw`SELECT * FROM "_CategoryToItem";`
}
// ... the pivot table entry is still there!
// This is a bug in the relationMode="prisma" emulation
//
// TODO once the bug is fixed: remove conditional
// pivot table should be empty
if (suiteConfig.relationMode === 'prisma') {
expect(pivotTableAfterDelete).toStrictEqual([
{
A: 2,
B: 2,
},
])
} else {
// This is the expected behavior for prisma and foreignKeys
// once this bug is fixed
expect(pivotTableAfterDelete).toStrictEqual([])
}
})
},
// Use `optOut` to opt out from testing the default selected providers
// otherwise the suite will require all providers to be specified.
{
optOut: {
from: ['sqlite', 'mongodb', 'cockroachdb', 'sqlserver'],
reason: 'Only testing postgresql and mysql',
},
},
)