Adding querying tests

Fxed cwd in tests

.github/ISSUE_TEMPLATE/question--feedback-or-bug-.md

@@ -0,0 +1,10 @@
+---
+name: Question, feedback or bug?
+about: Use our community!
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Please use our community on https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce

.mocharc.yml

@@ -0,0 +1 @@
+parallel: true

.npmrc

@@ -1 +0,0 @@
-@sap:registry=https://npm.sap.com

.vscode/extensions.json

@@ -4,7 +4,7 @@
 
 	// List of extensions which should be recommended for users of this workspace.
 	"recommendations": [
-		// "CDS Editor !",
+		"SAPSE.vscode-cds",
 		"dbaeumer.vscode-eslint",
 		"esbenp.prettier-vscode",
 		"mechatroner.rainbow-csv",

.vscode/launch.json

@@ -6,24 +6,16 @@
   "configurations": [
     {
       "name": "bookshop",
-      "cwd": "${workspaceFolder}/bookshop",
+      "command": "cds watch bookshop",
       "request": "launch",
-      "type": "node",
-      "runtimeExecutable": "npx",
-      "runtimeArgs": ["-n"],
-      "args": ["--", "cds", "run", "--with-mocks", "--in-memory?"],
-      "console": "integratedTerminal",
+      "type": "node-terminal",
       "skipFiles": ["<node_internals>/**"]
     },
     {
-      "name": "Fiori App",
-      "cwd": "${workspaceFolder}/fiori",
+      "name": "Fiori app",
+      "command": "cds watch fiori",
       "request": "launch",
-      "type": "node",
-      "runtimeExecutable": "npx",
-      "runtimeArgs": ["-n"],
-      "args": ["--", "cds", "run", "--with-mocks", "--in-memory?"],
-      "console": "integratedTerminal",
+      "type": "node-terminal",
       "skipFiles": ["<node_internals>/**"]
     }
   ],

README.md

@@ -50,7 +50,7 @@ npx jest
 ## Get Support
 
 Check out the documentation at [https://cap.cloud.sap](https://cap.cloud.sap). <br>
-In case you find a bug or need support, please [open an issue in here](https://github.com/SAP-samples/cloud-cap-samples/issues/new).
+In case you have a question, find a bug, or otherwise need support, please use our [community](https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce).
 
 
 ## License

bookshop/db/data/sap.capire.bookshop-Genres.csv

@@ -11,6 +11,6 @@ ID;parent_ID;name
 19;10;Fairy Tale
 20;;Non-Fiction
 21;20;Biography
-22;20;Autobiography
+22;21;Autobiography
 23;20;Essay
 24;20;Speech

common/data/sap.common-Currencies.csv

@@ -2,7 +2,7 @@ code;symbol;name;descr;numcode;minor;exponent
 EUR;€;Euro;European Euro;978;Cent;2
 USD;$;US Dollar;United States Dollar;840;Cent;2
 CAD;$;Canadian Dollar;Canadian Dollar;124;Cent;2
-AUD;$;Australian Dollar;Canadian Dollar;036;Cent;2
+AUD;$;Australian Dollar;Australian Dollar;036;Cent;2
 GBP;£;British Pound;Great Britain Pound;826;Penny;2
 ILS;₪;Shekel;Israeli New Shekel;376;Agorat;2
 INR;₹;Rupee;Indian Rupee;356;Paise;2

ext/.eslintrc

@@ -1,24 +0,0 @@
-{
-    "extends": "eslint:recommended",
-    "env": {
-        "node": true,
-        "es6": true,
-        "jest": true
-    },
-    "parserOptions": {
-        "ecmaVersion": 2017
-    },
-    "globals": {
-        "SELECT": true,
-        "INSERT": true,
-        "UPDATE": true,
-        "DELETE": true,
-        "CREATE": true,
-        "DROP": true,
-        "cds": true
-    },
-    "rules": {
-        "no-console": "off",
-        "require-atomic-updates": "off"
-    }
-}

ext/.gitignore

@@ -1,30 +0,0 @@
-# CAP ext
-_out
-*.db
-connection.properties
-default-*.json
-gen/
-node_modules/
-package-lock.json
-target/
-
-# Web IDE, App Studio
-.che/
-.gen/
-
-# MTA
-*_mta_build_tmp
-*.mtar
-mta_archives/
-
-# Other
-.DS_Store
-*.orig
-*.log
-
-*.iml
-*.flattened-pom.xml
-
-# IDEs
-.vscode
-.idea

ext/db/schema.cds

@@ -1,6 +0,0 @@
-using { sap.capire.bookshop.Books } from '@capire/bookshop';
-
-extend Books with {
-  ISBN : String;
-  discount : Decimal @assert.range:[0,1];
-}

ext/package.json

@@ -1,19 +0,0 @@
-{
-  "name": "ext",
-  "version": "1.0.0",
-  "description": "A simple CAP project.",
-  "repository": "<Add your repository here>",
-  "license": "UNLICENSED",
-  "private": true,
-  "dependencies": {
-    "@capire/bookshop": "../bookshop",
-    "@sap/cds": "^4",
-    "express": "^4"
-  },
-  "devDependencies": {
-    "sqlite3": "^4"
-  },
-  "scripts": {
-    "start": "npx cds run"
-  }
-}

ext/server.js

@@ -1,40 +0,0 @@
-const cds = require ('@sap/cds')
-const path = require ('path')
-const fs = require ('fs')
-const protected = {db:1,messaging:1,auth:1}
-const { isfile } = cds.utils
-
-cds.on('served', ()=>{
-  for (let each of cds.services) {
-    if (each.name in protected) continue
-    // search for local srv/<each>.js files and if exist
-    // activate them in a service extension sandbox
-    const impl = isfile (path.resolve('srv/'+each.name+'.js'))
-    if (impl) activate_sandboxed (each,impl)
-  }
-})
-
-function activate_sandboxed (srv,impl) {
-  console.log (`[cds] - extending ${srv.name} with sandboxed:`, {impl:path.relative(process.cwd(),impl)})
-  const src = fs.readFileSync (impl)
-  const sandbox = Object.keys(global).filter(name => name !== 'cds')
-  const fn = new Function (
-    'module','cds','global','process', ...sandbox,
-    src
-  )
-  // restricted sandboxed variant of 'module' and 'cds'
-  const module = {}
-  const cds = {
-    service: {
-      impl: fn=>fn
-    }
-  }
-  fn (module,cds,undefined,undefined, ...sandbox.map((()=>(undefined))))
-  if (typeof module.exports === 'function') try {
-    module.exports.call (srv,srv)
-  } catch (e) {
-    console.log (e)
-  }
-}
-
-module.exports = cds.server

ext/srv/AdminService.js

@@ -1,10 +0,0 @@
-module.exports = cds.service.impl(function(){
-
-  this.before(['CREATE','UPDATE'],'Books', req => {  //> ....
-    const book = req.data
-    if (book.stock < 10 && book.discount > 0.5) {
-      req.error('Hey, da sind so wenig übrig, die wollen wir nicht zu billig verticken')
-    }
-  })
-
-})

ext/srv/CatalogService.js

@@ -1,9 +0,0 @@
-console.log ('Böses Zeug', global, process, cds)
-// process.exit()
-// const fs = require('fs')
-// cds.run('Böses Zeugs')
-// SELECT.from ('Foo')
-
-module.exports = cds.service.impl(function(){
-  this.after('READ','Books', each => each.title += ' (served through sandbox)')
-})

fiori/app/_i18n/i18n.properties

@@ -7,7 +7,19 @@ AuthorID = Author ID
 Stock = Stock
 Name = Name
 AuthorName = Author's Name
+DateOfBirth = Date of Birth
+DateOfDeath = Date of Death
+PlaceOfBirth = Place of Birth
+PlaceOfDeath = Place of Death
 Authors = Authors
 Order = Order
 Orders = Orders
 Price = Price
+
+Genre = Genre
+Genres = Genres
+SubGenres = Sub Genres
+
+NumCode = Numeric Code
+MinorUnit = Minor Unit
+Exponent = Exponent

fiori/app/admin/webapp/Component.js

@@ -1,5 +1,8 @@
-sap.ui.define(["sap/fe/core/AppComponent"], ac => ac.extend("admin.Component", {
-    metadata:{ manifest:'json' }
-}))
+sap.ui.define(["sap/fe/core/AppComponent"], function(AppComponent) {
+	"use strict";
+	return AppComponent.extend("admin.Component", {
+		metadata: { manifest: "json" }
+	});
+});
 
 /* eslint no-undef:0 */

fiori/app/admin/webapp/manifest.json

@@ -24,7 +24,7 @@
     "sap.ui5": {
         "dependencies": {
             "libs": {
-                "sap.fe": {}
+                "sap.fe.templates": {}
             }
         },
         "models": {

fiori/app/browse/webapp/Component.js

@@ -1,5 +1,7 @@
-sap.ui.define(["sap/fe/core/AppComponent"], ac => ac.extend("bookshop.Component", {
-    metadata:{ manifest:'json' }
-}))
-
+sap.ui.define(["sap/fe/core/AppComponent"], function(AppComponent) {
+	"use strict";
+	return AppComponent.extend("bookshop.Component", {
+		metadata: { manifest: "json" }
+	});
+});
 /* eslint no-undef:0 */

fiori/app/browse/webapp/manifest.json

@@ -24,7 +24,7 @@
   "sap.ui5": {
     "dependencies": {
       "libs": {
-        "sap.fe": {}
+        "sap.fe.templates": {}
       }
     },
     "models": {

fiori/app/common.cds

@@ -1,9 +1,9 @@
 /*
-  Common Annotations shared by all apps
+	Common Annotations shared by all apps
 */
 
 using { sap.capire.bookshop as my } from '@capire/bookshop';
-
+using { sap.common } from '@capire/common';
 
 ////////////////////////////////////////////////////////////////////////////
 //
@@ -13,7 +13,7 @@ annotate my.Books with @(
 	Common.SemanticKey: [title],
 	UI: {
 		Identification: [{Value:title}],
-	  SelectionFields: [ ID, author_ID, price, currency_code ],
+		SelectionFields: [ ID, author_ID, price, currency_code ],
 		LineItem: [
 			{Value: ID},
 			{Value: title},
@@ -28,25 +28,18 @@ annotate my.Books with @(
 	author @ValueList.entity:'Authors';
 };
 
-annotate my.Authors with @(
-	UI: {
-		Identification: [{Value:name}],
-	}
-);
-
-
 ////////////////////////////////////////////////////////////////////////////
 //
 //	Books Details
 //
 annotate my.Books with @(
 	UI: {
-  	HeaderInfo: {
-  		TypeName: '{i18n>Book}',
-  		TypeNamePlural: '{i18n>Books}',
-  		Title: {Value: title},
-  		Description: {Value: author.name}
-  	},
+		HeaderInfo: {
+			TypeName: '{i18n>Book}',
+			TypeNamePlural: '{i18n>Books}',
+			Title: {Value: title},
+			Description: {Value: author.name}
+		},
 	}
 );
 
@@ -66,15 +59,199 @@ annotate my.Books with {
 	descr @UI.MultiLineText;
 }
 
+////////////////////////////////////////////////////////////////////////////
+//
+//	Genres List
+//
+annotate my.Genres with @(
+	Common.SemanticKey: [name],
+	UI: {
+		SelectionFields: [ name ],
+		LineItem:[
+			{Value: name},
+			{Value: parent.name, Label: 'Main Genre'},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Genre Details
+//
+annotate my.Genres with @(
+	UI: {
+		Identification: [{Value:name}],
+		HeaderInfo: {
+			TypeName: '{i18n>Genre}',
+			TypeNamePlural: '{i18n>Genres}',
+			Title: {Value: name},
+			Description: {Value: ID}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>SubGenres}', Target: 'children/@UI.LineItem'},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Genres Elements
+//
 annotate my.Genres with {
-  name  @title: '{i18n>Genre}';
+	ID  @title: '{i18n>ID}';
+	name  @title: '{i18n>Genre}';
 }
 
+////////////////////////////////////////////////////////////////////////////
+//
+//	Authors List
+//
+annotate my.Authors with @(
+	Common.SemanticKey: [name],
+	UI: {
+		Identification: [{Value:name}],
+		SelectionFields: [ name ],
+		LineItem:[
+			{Value: ID},
+			{Value: name},
+			{Value: dateOfBirth},
+			{Value: dateOfDeath},
+			{Value: placeOfBirth},
+			{Value: placeOfDeath},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Author Details
+//
+annotate my.Authors with @(
+	UI: {
+		HeaderInfo: {
+			TypeName: '{i18n>Author}',
+			TypeNamePlural: '{i18n>Authors}',
+			Title: {Value: name},
+			Description: {Value: dateOfBirth}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Target: 'books/@UI.LineItem'},
+		],
+	}
+);
+
+
 ////////////////////////////////////////////////////////////////////////////
 //
 //	Authors Elements
 //
 annotate my.Authors with {
 	ID @title:'{i18n>ID}' @UI.HiddenFilter;
-	name @title:'{i18n>AuthorName}';
+	name @title:'{i18n>Name}';
+	dateOfBirth @title:'{i18n>DateOfBirth}';
+	dateOfDeath @title:'{i18n>DateOfDeath}';
+	placeOfBirth @title:'{i18n>PlaceOfBirth}';
+	placeOfDeath @title:'{i18n>PlaceOfDeath}';
+}
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Languages List
+//
+annotate common.Languages with @(
+	Common.SemanticKey: [code],
+	Identification: [{Value:code}],
+	UI: {
+		SelectionFields: [ name, descr ],
+		LineItem:[
+			{Value: code},
+			{Value: name},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Language Details
+//
+annotate common.Languages with @(
+	UI: {
+		HeaderInfo: {
+			TypeName: '{i18n>Language}',
+			TypeNamePlural: '{i18n>Languages}',
+			Title: {Value: name},
+			Description: {Value: descr}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Details}', Target: '@UI.FieldGroup#Details'},
+		],
+		FieldGroup#Details: {
+			Data: [
+				{Value: code},
+				{Value: name},
+				{Value: descr}
+			]
+		},
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Currencies List
+//
+annotate common.Currencies with @(
+	Common.SemanticKey: [code],
+	Identification: [{Value:code}],
+	UI: {
+		SelectionFields: [ name, descr ],
+		LineItem:[
+			{Value: descr},
+			{Value: symbol},
+			{Value: code},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Currency Details
+//
+annotate common.Currencies with @(
+	UI: {
+		HeaderInfo: {
+			TypeName: '{i18n>Currency}',
+			TypeNamePlural: '{i18n>Currencies}',
+			Title: {Value: descr},
+			Description: {Value: code}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Details}', Target: '@UI.FieldGroup#Details'},
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Extended}', Target: '@UI.FieldGroup#Extended'},
+		],
+		FieldGroup#Details: {
+			Data: [
+				{Value: name},
+				{Value: symbol},
+				{Value: code},
+				{Value: descr}
+			]
+		},
+		FieldGroup#Extended: {
+			Data: [
+				{Value: numcode},
+				{Value: minor},
+				{Value: exponent}
+			]
+		},
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Currencies Elements
+//
+annotate common.Currencies with {
+	numcode @title:'{i18n>NumCode}';
+	minor @title:'{i18n>MinorUnit}';
+	exponent @title:'{i18n>Exponent}';
 }

fiori/app/orders/webapp/Component.js

@@ -1,5 +1,8 @@
-sap.ui.define(["sap/fe/core/AppComponent"], ac => ac.extend("orders.Component", {
-    metadata:{ manifest:'json' }
-}))
+sap.ui.define(["sap/fe/core/AppComponent"], function(AppComponent) {
+	"use strict";
+	return AppComponent.extend("orders.Component", {
+		metadata: { manifest: "json" }
+	});
+});
 
 /* eslint no-undef:0 */

fiori/app/orders/webapp/manifest.json

@@ -24,7 +24,7 @@
 	"sap.ui5": {
         "dependencies": {
             "libs": {
-                "sap.fe": {}
+                "sap.fe.templates": {}
             }
         },
 		"models": {

package.json

@@ -19,6 +19,8 @@
     "sqlite3": "^4"
   },
   "scripts": {
+    "bookshop": "cds watch bookshop",
+    "fiori": "cds watch fiori",
     "mocha": "npx mocha || echo",
     "jest": "npx jest --verbose",
     "test": "npm run jest -s"

reviewed/.env

@@ -0,0 +1 @@
+cds.requires.messaging.kind = file-based-messaging

reviewed/package.json

@@ -2,8 +2,8 @@
   "name": "@capire/bookshop-with-reviews",
   "version": "1.0.0",
   "dependencies": {
-    "@capire/bookshop": "../../../bookshop",
-    "@capire/reviews": "..",
+    "@capire/bookshop": "../bookshop",
+    "@capire/reviews": "../reviews",
     "@sap/cds": "^3.33.1",
     "express": "^4.17.1"
   },
@@ -14,10 +14,7 @@
       },
       "ReviewsService": {
         "kind": "odata", "model": "@capire/reviews"
-      },
-      "messaging": {
-        "kind": "file-based-messaging"
       }
     }
   }
-}
+}

reviewed/server.js

@@ -12,9 +12,13 @@ cds.once('served', async()=>{
     // react on event messages from reviews service
     const ReviewsService = await cds.connect.to ('ReviewsService')
     const db = await cds.connect.to ('db')
+
+    // reflect entities required below...
+    const { Books } = db.entities('sap.capire.bookshop')
+    const { Reviews } = ReviewsService.entities
+
     ReviewsService.on ('reviewed', (msg) => {
         console.debug ('> received:', msg.event, msg.data)
-        const { Books } = db.entities('sap.capire.bookshop')
         const { subject, rating } = msg.data
         const tx = db.tx (msg) // TODO: db.tx(msg) fully implemented?
         return tx.update (Books,subject) .with ({rating})
@@ -24,10 +28,10 @@ cds.once('served', async()=>{
     const CatalogService = await cds.connect.to ('CatalogService')
     CatalogService.impl (srv => srv.on ('READ', 'Books/reviews', (req) => {
         console.debug ('> delegating to ReviewsService')
-        const { Reviews } = ReviewsService.entities
-        const [ subject ] = req.params
-        const tx = ReviewsService.tx (req)
-        return tx.read (Reviews) .where({subject}) .columns (req.query.SELECT.columns)
+        const [ id ] = req.params
+        const tx = ReviewsService.tx(req)
+        return tx.read (Reviews) .where ({ subject: String(id) })
+        .columns (req.query.SELECT.columns)
     }))
 
 })

reviewed/test/requests.http

@@ -1,13 +1,16 @@
 #################################################
 #
-#   To ReviewsService mocked in bookshop process
+#   To ReviewsService
 #
+# move the right down:
+@reviews-service = http://localhost:4004/reviews
+@reviews-service = http://localhost:5005/reviews
 
-GET http://localhost:4004/reviews/Reviews?
+### Get all reviews
+GET {{reviews-service}}/Reviews
 
-###
-
-POST http://localhost:4004/reviews/Reviews
+### Add a new review (with random rating)
+POST {{reviews-service}}/Reviews
 Content-Type: application/json;IEEE754Compatible=true
 
 {"subject":"201", "title":"boo"}
@@ -20,17 +23,18 @@ Content-Type: application/json;IEEE754Compatible=true
 #   (both in-process as well as separate one)
 #
 
+@bookshop = http://localhost:4004
 
 ### Request to CatalogService > delegated to ReviewsService
-GET http://localhost:4004/browse/Books(201)/reviews?
+GET {{bookshop}}/browse/Books(201)/reviews?
 &$select=rating,date,reviewer,title
 
 ### Alternative OData URL
-GET http://localhost:4004/browse/Books/201/reviews?
+GET {{bookshop}}/browse/Books/201/reviews?
 &$select=rating,date,reviewer,title
 
 ###
-GET http://localhost:4004/browse/Books(201)?
+GET {{bookshop}}/browse/Books(201)?
 &$select=ID,title,rating
 &$expand=reviews
 # Note: the $expand only works in case of ReviewsService in same process

reviews/.env

@@ -1 +1,2 @@
+cds.requires.messaging.kind = file-based-messaging
 PORT = 5005

reviews/package.json

@@ -12,15 +12,12 @@
   },
   "scripts": {
     "reviews-service": "cds watch",
-    "bookshop": "cds watch test/bookshop"
+    "books-reviewed": "cds watch ../reviewed"
   },
   "cds": {
     "requires": {
       "db": {
         "kind": "sql"
-      },
-      "messaging": {
-        "kind": "file-based-messaging"
       }
     }
   }

reviews/test/5005.http

@@ -1,13 +0,0 @@
-#################################################
-#
-#   To ReviewsService running as separate process
-#
-
-GET http://localhost:5005/reviews/Reviews?
-
-###
-
-POST http://localhost:5005/reviews/Reviews
-Content-Type: application/json;IEEE754Compatible=true
-
-{"subject":"201", "title":"boo"}

test/cds.ql.test.js

@@ -261,7 +261,7 @@ describe('cds.ql → cqn', () => {
       // same for works distinct
     })
 
-    xtest('where ( ... cql  |  {x:y} )', () => {
+    test.skip('where ( ... cql  |  {x:y} )', () => {
       const args = [`foo`, "'bar'", 3]
       const ID = 11
 
@@ -466,47 +466,38 @@ describe('cds.ql → cqn', () => {
     UPDATE.with allows to pass in plain data payloads, e.g. as obtained from REST clients.
     In addition, UPDATE.with supports specifying expressions, either in CQL fragements
     notation or as simple expression objects.
-  */
-    test('with', () => {
-      expect(UPDATE(Foo).with(`foo=`, 11, `bar-=`, 22))
+
+    UPDATE.data allows to pass in plain data payloads, e.g. as obtained from REST clients.
+    The passed in object can be modified subsequently, e.g. by adding or modifying values
+    before the query is finally executed.
+    */
+    test('with + data', () => {
+      if (cds.version < '4.1.0') return
+      const o = {}
+      const q = UPDATE(Foo).data(o).with(`bar-=`, 22)
+      o.foo = 11
+      expect(q)
+        .to.eql(UPDATE(Foo).with(`foo=`, 11, `bar-=`, 22))
         .to.eql(UPDATE(Foo).with({ foo: 11, bar: { '-=': 22 } }))
         .to.eql({
           UPDATE: {
             entity: 'Foo',
+            data: { foo: 11 },
             with: {
-              foo: { val: 11 },
               bar: { xpr: [{ ref: ['bar'] }, '-', { val: 22 }] },
             },
           },
         })
 
       // some more
-      // expect(UPDATE(Foo).with(`bar = coalesce(x,y), car = 'foo''s bar, car'`)).to.eql({
-      //   UPDATE: {
-      //     entity: 'Foo',
-      //     with: {
-      //       bar: { func: 'coalesce', args: [{ ref: ['x'] }, { ref: ['y'] }] },
-      //       car: { val: "foo's bar, car" },
-      //     },
-      //   },
-      // })
-    })
-
-    /*
-    UPDATE.data allows to pass in plain data payloads, e.g. as obtained from REST clients.
-    The passed in object can be modified subsequently, e.g. by adding or modifying values
-    before the query is finally executed.
-  */
-    test('data', () => {
-      const o = {}
-      const q = UPDATE(Foo).data(o).with(`bar-=`, 22)
-      o.foo = 11
-      expect(q).to.eql({
+      expect(UPDATE(Foo).with(`bar = coalesce(x,y), car = 'foo''s bar, car'`)).to.eql({
         UPDATE: {
           entity: 'Foo',
-          data: { foo: 11 },
+          data: {
+            car: "foo's bar, car",
+          },
           with: {
-            bar: { xpr: [{ ref: ['bar'] }, '-', { val: 22 }] },
+            bar: { func: 'coalesce', args: [{ ref: ['x'] }, { ref: ['y'] }] },
           },
         },
       })

test/consuming-services.test.js

@@ -1,6 +1,10 @@
 const { expect } = require('./capire')
 const cds = require('@sap/cds')
 
+const cwd = process.cwd()
+before (()=> process.chdir(__dirname))
+after(()=> process.chdir(cwd))
+
 describe('Consuming Services locally', () => {
   //
   before('bootstrap db and services', async () => {

test/custom-handlers.test.js

@@ -1,3 +1,12 @@
+const cwd = process.cwd()
+const is_jest = !!global.test
+if (is_jest) { // it's jest
+  global.before = (msg,fn) => global.beforeAll(fn||msg)
+  global.after = (msg,fn) => global.afterAll(fn||msg)
+}
+before (()=> process.chdir(__dirname))
+after (()=> process.chdir(cwd))
+
 describe('Custom Handlers', () => {
   const { GET, POST, expect } = require('./capire').launch('bookshop')
 

test/messaging.test.js

@@ -21,7 +21,7 @@ describe('Messaging', ()=>{
 
     let N=0, received=[], M=0
     it ('should add messaging event handlers', ()=>{
-        srv.on('reviewed', (msg)=> received.push(msg))
+        srv.on('reviewed', (msg)=> {received.push(msg)})
     })
 
     it ('should add more messaging event handlers', ()=>{

test/querying.test.js

@@ -0,0 +1,71 @@
+describe('Querying', () => {
+  const { GET, expect } = require('./capire').launch('bookshop')
+  const Authors = {name:'sap.capire.bookshop.Authors'}
+
+  it('should SELECT from Authors', async () => {
+    const authors = await SELECT.from (Authors, a => {
+      a.name
+    })
+    expect(authors).to.eql([
+      { name: 'Emily Brontë' },
+      { name: 'Charlotte Brontë' },
+      { name: 'Edgar Allen Poe' },
+      { name: 'Richard Carpenter' },
+    ])
+  })
+
+  it('should SELECT name from Authors', async () => {
+    const authors = await SELECT.from (Authors, a => {
+      a.name
+    })
+    expect(authors).to.eql([
+      { name: 'Emily Brontë' },
+      { name: 'Charlotte Brontë' },
+      { name: 'Edgar Allen Poe' },
+      { name: 'Richard Carpenter' },
+    ])
+  })
+
+  it('should GET /Authors?$select=name&$expand=books($select=title)', async () => {
+    const {data:{value:authors}} = await GET ('/admin/Authors?$select=name&$expand=books($select=title)')
+    expect(authors).to.containSubset([
+      { name: 'Emily Brontë', books: [{ title: 'Wuthering Heights' }] },
+      { name: 'Charlotte Brontë', books: [{ title: 'Jane Eyre' }] },
+      { name: 'Edgar Allen Poe', books: [{ title: 'The Raven' }, { title: 'Eleonora' }] },
+      { name: 'Richard Carpenter', books: [{ title: 'Catweazle' }] },
+    ])
+  })
+
+  it('should SELECT from Authors { name, books { title } }', async () => {
+    const authors = await SELECT.from(Authors, a => { a.name, a.books(b=>{ b.title }) })
+    expect(authors).to.eql([
+      { name: 'Emily Brontë', books: [{ title: 'Wuthering Heights' }] },
+      { name: 'Charlotte Brontë', books: [{ title: 'Jane Eyre' }] },
+      { name: 'Edgar Allen Poe', books: [{ title: 'The Raven' }, { title: 'Eleonora' }] },
+      { name: 'Richard Carpenter', books: [{ title: 'Catweazle' }] },
+    ])
+  })
+
+  it('should GET /Authors?$expand=books', async () => {
+    const {data:{value:authors}} = await GET ('/admin/Authors?$select=name&$expand=books($select=title)')
+    expect(authors).to.containSubset([
+      { name: 'Emily Brontë', books: [{ title: 'Wuthering Heights' }] },
+      { name: 'Charlotte Brontë', books: [{ title: 'Jane Eyre' }] },
+      { name: 'Edgar Allen Poe', books: [{ title: 'The Raven' }, { title: 'Eleonora' }] },
+      { name: 'Richard Carpenter', books: [{ title: 'Catweazle' }] },
+    ])
+  })
+
+  it('should SELECT from Authors { *, books{*} }', async () => {
+    const authors = await SELECT.from(Authors, a => { a('*'), a.books(b => b('*')) })
+    // const authors = await SELECT.from(Authors, ['*',{ref:['books'], expand:['*']}])
+    // const authors = await SELECT.from(Authors, [{ref:['*']},{ref:['books'], expand:[{ref:['*']}]}])
+    expect(authors).to.eql([
+      { name: 'Emily Brontë', books: [{ title: 'Wuthering Heights' }] },
+      { name: 'Charlotte Brontë', books: [{ title: 'Jane Eyre' }] },
+      { name: 'Edgar Allen Poe', books: [{ title: 'The Raven' }, { title: 'Eleonora' }] },
+      { name: 'Richard Carpenter', books: [{ title: 'Catweazle' }] },
+    ])
+  })
+
+})