use execute method

tests/unit/database.spec.js

@@ -0,0 +1,54 @@
+/* import { expect } from 'chai'
+import { shallowMount } from '@vue/test-utils'
+import HelloWorld from '@/components/HelloWorld.vue'
+
+describe('HelloWorld.vue', () => {
+  it('renders props.msg when passed', () => {
+    const msg = 'new message'
+    const wrapper = shallowMount(HelloWorld, {
+      propsData: { msg }
+    })
+    expect(wrapper.text()).to.include(msg)
+  })
+})
+ */
+import { expect } from 'chai'
+import initSqlJs from 'sql.js'
+import db from '@/database.js'
+
+describe('database.js', () => {
+  it('creates schema', () => {
+    const config = {
+      locateFile: filename => `js/sql-wasm.wasm`
+    }
+    return initSqlJs(config)
+    .then(SQL => {
+      const database = new SQL.Database()
+      database.run(`
+        CREATE TABLE test (
+          col1,
+          col2 integer,
+          col3 decimal(5,2),
+          col4 varchar(30)
+        )
+      `)
+
+      const data = database.export()
+      const buffer = new Blob([data])
+      return db.loadDb(buffer)
+    })
+    .then(({dbName, schema}) => {
+      console.log(schema[0].columns)
+      expect(schema.length).to.equal(1)
+      expect(schema[0].name).to.equal('test') 
+      expect(schema[0].columns[0].name).to.equal('col1') 
+      expect(schema[0].columns[0].type).to.equal('N/A') 
+      expect(schema[0].columns[1].name).to.equal('col2') 
+      expect(schema[0].columns[1].type).to.equal('integer') 
+      expect(schema[0].columns[2].name).to.equal('col3') 
+      expect(schema[0].columns[2].type).to.equal('decimal(5, 2)') 
+      expect(schema[0].columns[3].name).to.equal('col4') 
+      expect(schema[0].columns[3].type).to.equal('varchar(30)') 
+    })
+  })
+})