119 lines
3.9 KiB
JavaScript
119 lines
3.9 KiB
JavaScript
/*
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2022-09-12
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The author disclaims copyright to this source code. In place of a
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legal notice, here is a blessing:
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* May you do good and not evil.
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* May you find forgiveness for yourself and forgive others.
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* May you share freely, never taking more than you give.
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***********************************************************************
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A basic test script for sqlite3-kvvfs.wasm. This file must be run in
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main JS thread and sqlite3-kvvfs.js must have been loaded before it.
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*/
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'use strict';
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(function(){
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const T = self.SqliteTestUtil;
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const toss = function(...args){throw new Error(args.join(' '))};
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const debug = console.debug.bind(console);
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const eOutput = document.querySelector('#test-output');
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const logC = console.log.bind(console)
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const logE = function(domElement){
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eOutput.append(domElement);
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};
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const logHtml = function(cssClass,...args){
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const ln = document.createElement('div');
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if(cssClass) ln.classList.add(cssClass);
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ln.append(document.createTextNode(args.join(' ')));
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logE(ln);
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}
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const log = function(...args){
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logC(...args);
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logHtml('',...args);
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};
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const warn = function(...args){
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logHtml('warning',...args);
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};
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const error = function(...args){
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logHtml('error',...args);
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};
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const runTests = function(Module){
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//log("Module",Module);
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const sqlite3 = Module.sqlite3,
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capi = sqlite3.capi,
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oo = sqlite3.oo1,
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wasm = capi.wasm;
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log("Loaded module:",capi.sqlite3_libversion(), capi.sqlite3_sourceid());
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T.assert( 0 !== capi.sqlite3_vfs_find(null) );
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if(!oo.DB.clearKvvfsStorage){
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warn("This build is not kvvfs-capable.");
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return;
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}
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const dbStorage = 1 ? ':sessionStorage:' : ':localStorage:';
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const theStore = 's'===dbStorage[1] ? sessionStorage : localStorage;
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/**
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The names ':sessionStorage:' and ':localStorage:' are handled
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via the DB class constructor, not the C level. In the C API,
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the names "local" and "session" are the current (2022-09-12)
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names for those keys, but that is subject to change.
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*/
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const db = new oo.DB( dbStorage );
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document.querySelector('#btn-clear-storage').addEventListener('click',function(){
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oo.DB.clearKvvfsStorage();
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log("kvvfs localStorage and sessionStorage cleared.");
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});
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document.querySelector('#btn-clear-log').addEventListener('click',function(){
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eOutput.innerText = '';
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});
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document.querySelector('#btn-init-db').addEventListener('click',function(){
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const saveSql = [];
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try{
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db.exec({
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sql:["drop table if exists t;",
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"create table if not exists t(a);",
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"insert into t(a) values(?),(?),(?)"],
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bind: [performance.now() >> 0,
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(performance.now() * 2) >> 0,
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(performance.now() / 2) >> 0],
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saveSql
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});
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console.log("saveSql =",saveSql,theStore);
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log("DB (re)initialized.");
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}catch(e){
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error(e.message);
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}
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});
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const btnSelect = document.querySelector('#btn-select1');
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btnSelect.addEventListener('click',function(){
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log("DB rows:");
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try{
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db.exec({
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sql: "select * from t order by a",
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rowMode: 0,
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callback: (v)=>log(v)
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});
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}catch(e){
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error(e.message);
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}
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});
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log("Storage backend:",db.filename /* note that the name was internally translated */);
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if(0===db.selectValue('select count(*) from sqlite_master')){
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log("DB is empty. Use the init button to populate it.");
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}else{
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log("DB contains data from a previous session. Use the Clear Ctorage button to delete it.");
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btnSelect.click();
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}
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};
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sqlite3InitModule(self.sqlite3TestModule).then(function(theModule){
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console.warn("Installing Emscripten module as global EM for dev console access.");
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self.EM = theModule;
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runTests(theModule);
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});
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})();
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