Fixed tests and prepared for mocha

bookshop/test/genres.cds

@@ -0,0 +1,4 @@
+using { sap.capire.bookshop as my } from '../db/schema';
+service TestService {
+  entity Genres as projection on my.Genres;
+}

bookshop/test/genres.http

@@ -0,0 +1,38 @@
+#################################################
+#
+#   Genres
+#
+
+GET http://localhost:4004/test/Genres?
+###
+
+GET http://localhost:4004/test/Genres?
+&$filter=parent_ID eq null&$select=name
+&$expand=children($select=name)
+###
+
+POST http://localhost:4004/test/Genres?
+Content-Type: application/json
+
+{ "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":"Catweazle" }
+]}
+###
+
+GET http://localhost:4004/test/Genres(100)?
+# &$expand=children
+# &$expand=children($expand=children($expand=children($expand=children)))
+###
+
+DELETE http://localhost:4004/test/Genres(103)
+###
+
+DELETE http://localhost:4004/test/Genres(100)
+###

bookshop/test/genres.test.js

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+const cds = require ('@sap/cds')
+const { expect } = require('chai') .use (require('chai-subset'))
+
+describe('reading/writing hierarchies', ()=>{
+
+    it ('should bootstrap sqlite in-memory db', async()=>{
+        await cds.deploy (__dirname+'/../db') .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:'Catweazle' }
+            ]}
+        )
+    })
+
+    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 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' } ]},
+            ]}
+
+        )
+    })
+
+})

bookshop/test/requests.http

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+GET http://localhost:4004/browse
+###
+
+GET http://localhost:4004/browse/$metadata
+###
+
+
+GET http://localhost:4004/browse/Books?
+&$select=title,stock
+&$expand=currency
+#> add @capire/common to see data for currencies
+# &sap-language=de
+###
+
+
+GET http://localhost:4004/admin/Authors?
+# &$select=name,dateOfBirth,placeOfBirth
+&$expand=books($select=title;$expand=currency)
+#> add @capire/common to see data for currencies
+# &$filter=ID eq 101
+&sap-language=de
+###
+
+
+POST http://localhost:4004/browse/order
+# Run that three times to get out-of-stock message
+Content-Type: application/json
+
+{ "book":201, "amount":5 }
+###
+
+
+
+GET http://localhost:4004/browse/Genres?
+###
+
+GET http://localhost:4004/browse/Genres?
+&$filter=parent_ID eq null&$select=name
+&$expand=children($select=name)
+###