116 lines
3.1 KiB
JavaScript
116 lines
3.1 KiB
JavaScript
const cds = require('@sap/cds/lib')
|
|
|
|
describe('cap/samples - Hierarchical Data', ()=>{
|
|
|
|
const csn = CDL`
|
|
entity Categories {
|
|
key ID : Integer;
|
|
name : String;
|
|
children : Composition of many Categories on children.parent = $self;
|
|
parent : Association to Categories;
|
|
}
|
|
`
|
|
const model = cds.compile.for.nodejs(csn)
|
|
const {Categories:Cats} = model.definitions
|
|
const { expect } = cds.test.in(__dirname,'..')
|
|
|
|
before ('bootstrap sqlite in-memory db...', async()=>{
|
|
await cds.deploy (csn) .to ('sqlite::memory:') // REVISIT: cds.compile.to.sql should accept cds.compiled.for.nodejs models
|
|
expect (cds.db) .to.exist
|
|
expect (cds.db.model) .to.exist
|
|
})
|
|
|
|
it ('supports deeply nested inserts', ()=> INSERT.into (Cats,
|
|
{ ID:100, name:'Some Cats...', children:[
|
|
{ ID:101, name:'Cat', children:[
|
|
{ ID:102, name:'Kitty', children:[
|
|
{ ID:103, name:'Kitty Cat', children:[
|
|
{ ID:104, name:'Aristocat' } ]},
|
|
{ ID:105, name:'Kitty Bat' } ]},
|
|
{ ID:106, name:'Catwoman', children:[
|
|
{ ID:107, name:'Catalina' } ]} ]},
|
|
{ ID:108, name:'Catweazle' }
|
|
]}
|
|
))
|
|
|
|
it ('supports nested reads', async()=>{
|
|
if (require('semver').gte(cds.version, '5.9.0')) {
|
|
expect (await
|
|
SELECT.one.from (Cats, c=>{
|
|
c.ID, c.name.as('parent'), c.children (c=>{
|
|
c.name.as('child')
|
|
})
|
|
}) .where ({name:'Cat'})
|
|
) .to.eql (
|
|
{ ID:101, parent:'Cat', children:[
|
|
{ child:'Kitty' },
|
|
{ child:'Catwoman' },
|
|
]}
|
|
)
|
|
return
|
|
}
|
|
expect (await
|
|
SELECT.one.from (Cats, c=>{
|
|
c.ID, c.name.as('parent'), c.children (c=>{
|
|
c.name.as('child')
|
|
})
|
|
}) .where ({name:'Cat'})
|
|
) .to.eql (
|
|
{ ID:101, parent:'Cat', children:[
|
|
{ ID:102, child:'Kitty' },
|
|
{ ID:106, child:'Catwoman' },
|
|
]}
|
|
)
|
|
})
|
|
|
|
it ('supports deeply nested reads', async()=>{
|
|
if (require('semver').gte(cds.version, '5.9.0')) {
|
|
expect (await SELECT.one.from (Cats, c=>{
|
|
c.ID, c.name, c.children (
|
|
c => { c.name },
|
|
{levels:3}
|
|
)
|
|
}) .where ({name:'Cat'})
|
|
) .to.eql (
|
|
{ ID:101, name:'Cat', children:[
|
|
{ name:'Kitty', children:[
|
|
{ name:'Kitty Cat', children:[
|
|
{ name:'Aristocat' }, ]}, // level 3
|
|
{ name:'Kitty Bat', children:[] }, ]},
|
|
{ name:'Catwoman', children:[
|
|
{ name:'Catalina', children:[] } ]},
|
|
]}
|
|
)
|
|
return
|
|
}
|
|
expect (await SELECT.one.from (Cats, c=>{
|
|
c.ID, c.name, c.children (
|
|
c => { c.name },
|
|
{levels:3}
|
|
)
|
|
}) .where ({name:'Cat'})
|
|
) .to.eql (
|
|
{ ID:101, name:'Cat', children:[
|
|
{ ID:102, name:'Kitty', children:[
|
|
{ ID:103, name:'Kitty Cat', children:[
|
|
{ ID:104, name:'Aristocat' }, ]}, // level 3
|
|
{ ID:105, name:'Kitty Bat', children:[] }, ]},
|
|
{ ID:106, name:'Catwoman', children:[
|
|
{ ID:107, name:'Catalina', children:[] } ]},
|
|
]}
|
|
)
|
|
})
|
|
|
|
it ('supports cascaded deletes', async()=>{
|
|
const affectedRows = await DELETE.from (Cats) .where ({ID:[102,106]})
|
|
expect (affectedRows) .to.be.greaterThan (0)
|
|
const expected = [
|
|
{ ID:100, name:'Some Cats...' },
|
|
{ ID:101, name:'Cat' },
|
|
{ ID:108, name:'Catweazle' }
|
|
]
|
|
expect ( await SELECT`ID,name`.from(Cats) ).to.eql (expected)
|
|
})
|
|
|
|
})
|