filer/tests/spec/adapters/adapters.general.spec.js

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define(["Filer"], function(Filer) {
// We reuse the same set of tests for all adapters.
// buildTestsFor() creates a set of tests bound to an
// adapter, and uses a Memory() provider internally.
function buildTestsFor(adapterName, buildAdapter) {
function encode(str) {
// TextEncoder is either native, or shimmed by Filer
return (new TextEncoder("utf-8")).encode(str);
}
// Make some string + binary buffer versions of things we'll need
var valueStr = "value", valueBuffer = encode(valueStr);
var value1Str = "value1", value1Buffer = encode(value1Str);
var value2Str = "value2", value2Buffer = encode(value2Str);
function createProvider() {
var memoryProvider = new Filer.FileSystem.providers.Memory();
return buildAdapter(memoryProvider);
}
describe("Filer.FileSystem.adapters." + adapterName, function() {
it("is supported -- if it isn't, none of these tests can run.", function() {
// Allow for combined adapters (e.g., 'AES+Zlib') joined by '+'
adapterName.split('+').forEach(function(name) {
expect(Filer.FileSystem.adapters[name].isSupported()).toEqual(true);
});
});
it("has open, getReadOnlyContext, and getReadWriteContext instance methods", function() {
var provider = createProvider();
expect(typeof provider.open).toEqual('function');
expect(typeof provider.getReadOnlyContext).toEqual('function');
expect(typeof provider.getReadWriteContext).toEqual('function');
});
describe("open a Memory provider with an " + adapterName + " adapter", function() {
it("should open a new database", function() {
var complete = false;
var _error, _result;
var provider = createProvider();
provider.open(function(err, firstAccess) {
_error = err;
_result = firstAccess;
complete = true;
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toEqual(null);
expect(_result).toEqual(true);
});
});
});
describe("Read/Write operations on a Memory provider with an " + adapterName + " adapter", function() {
it("should allow put() and get()", function() {
var complete = false;
var _error, _result;
var provider = createProvider();
provider.open(function(err, firstAccess) {
_error = err;
var context = provider.getReadWriteContext();
context.put("key", valueBuffer, function(err, result) {
_error = _error || err;
context.get("key", function(err, result) {
_error = _error || err;
_result = result;
complete = true;
});
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toEqual(null);
expect(_result).toEqual(valueBuffer);
});
});
it("should allow delete()", function() {
var complete = false;
var _error, _result;
var provider = createProvider();
provider.open(function(err, firstAccess) {
_error = err;
var context = provider.getReadWriteContext();
context.put("key", valueBuffer, function(err, result) {
_error = _error || err;
context.delete("key", function(err, result) {
_error = _error || err;
context.get("key", function(err, result) {
_error = _error || err;
_result = result;
complete = true;
});
});
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toEqual(null);
expect(_result).toEqual(null);
});
});
it("should allow clear()", function() {
var complete = false;
var _error, _result1, _result2;
var provider = createProvider();
provider.open(function(err, firstAccess) {
_error = err;
var context = provider.getReadWriteContext();
context.put("key1", value1Buffer, function(err, result) {
_error = _error || err;
context.put("key2", value2Buffer, function(err, result) {
_error = _error || err;
context.clear(function(err) {
_error = _error || err;
context.get("key1", function(err, result) {
_error = _error || err;
_result1 = result;
context.get("key2", function(err, result) {
_error = _error || err;
_result2 = result;
complete = true;
});
});
});
});
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toEqual(null);
expect(_result1).toEqual(null);
expect(_result2).toEqual(null);
});
});
it("should fail when trying to write on ReadOnlyContext", function() {
var complete = false;
var _error, _result;
var provider = createProvider();
provider.open(function(err, firstAccess) {
_error = err;
var context = provider.getReadOnlyContext();
context.put("key1", value1Buffer, function(err, result) {
_error = _error || err;
_result = result;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_result).toEqual(null);
});
});
});
});
}
// Encryption
buildTestsFor('Encryption', function buildAdapter(provider) {
var passphrase = '' + Date.now();
return new Filer.FileSystem.adapters.Encryption(passphrase, provider);
});
// Compression
buildTestsFor('Compression', function buildAdapter(provider) {
return new Filer.FileSystem.adapters.Compression(provider);
});
// Encryption + Compression together
buildTestsFor('Encryption+Compression', function buildAdapter(provider) {
var passphrase = '' + Date.now();
var compression = new Filer.FileSystem.adapters.Compression(provider);
var encryptionWithCompression = new Filer.FileSystem.adapters.Encryption(passphrase, compression);
return encryptionWithCompression;
});
});