Adding tests for mocha and jest

test/genres.test.js

@@ -0,0 +1,70 @@
+const {expect} = require('@capire/tests')
+const cds = require ('@sap/cds')
+
+describe('Hierarchical CodeLists', ()=>{
+
+    it ('should bootstrap sqlite in-memory db...', async()=>{
+        await cds.deploy ('@capire/bookshop') .to ('sqlite::memory:')
+        expect (cds.db) .to.exist
+        expect (cds.db.model) .to.exist
+    })
+
+    it ('should insert hierarchy of genres', ()=>{
+        const { Genres } = cds.entities
+        return INSERT.into (Genres) .entries (
+            { ID:100, name:'Some Sample Genres...', 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:'Ca<tweazle' }
+            ]}
+        )
+    })
+
+    it ('should read genres with children', async()=>{
+        const { Genres } = cds.entities
+        expect (await
+
+            SELECT.one.from (Genres, c=>{
+                c.ID, c.name.as('parent'), c.children (c=>{
+                    c.name.as('child')
+                })
+            }) .where ({name:'Cat'})
+
+        ) .to.containSubset (
+
+            { ID:101, parent:'Cat', children:[
+                { child:'Kitty' },
+                { child:'Catwoman' },
+            ]}
+
+        )
+    })
+
+    it ('should read deep hierarchy of genres', async()=>{
+        const { Genres } = cds.entities
+        expect (await
+
+            SELECT.one.from (Genres, c=>{
+                c.ID, c.name, c.children (c=>{ c.name },{levels:3})
+            }) .where ({name:'Cat'})
+
+        ) .to.containSubset (
+
+            { ID:101, name:'Cat', children:[
+                { name:'Kitty', children:[
+                    { name:'Kitty Cat', children:[
+                        { name:'Aristocat' }, ]},
+                    { name:'Kitty Bat' }, ]},
+                { name:'Catwoman', children:[
+                    { name:'Catalina' } ]},
+            ]}
+
+        )
+    })
+
+})