diff --git a/test/querying.test.js b/test/querying.test.js
new file mode 100644
index 00000000..eb83743c
--- /dev/null
+++ b/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' }] },
+    ])
+  })
+
+})