Extra test case and document about "Minimal Installation"

README.md

@@ -143,6 +143,14 @@ Usage
 
 ```qml
 import "./promise.js" as Q
+
+....
+
+/// Q.promise is the creator function of promise. It is equivalent to "new Promise()" in modern browser
+
+var promise = new Q.Promise(function(resolve,reject) {
+  ....
+});
 ```
 
 Reference: [Q.promise()](#qpromise)
@@ -261,13 +269,19 @@ However, you may still pass a signal object to resolve()/reject(). In this case,
 
 But it don't support to resolve by the result of Qt.binding(). It will just throw exception. In this case, you should use a QML Promise and pass it to resolveWhen property.
 
+
+Remarks: Q.promise(executor) is equivalent to `new Q.Promise(executor)`.
+
 *API*
 
 ```
-Promise(executor)
-Promise.then = function(onFulfilled,onRejected) { ... }
-Promise.resolve = function(result) { ... }
-Promise.reject = function(reason) { ... }
+Q.Promise(executor)
+Q.Promise.prototype.then = function(onFulfilled,onRejected) { ... }
+Q.Promise.resolve = function(result) { ... }
+Q.Promise.reject = function(reason) { ... }
+Q.Promise.all = function(promises) { }
+Q.Promise.allSettled = function(promises) { }
+
 ```
 
 Instruction of using then/resolve/reject: [Promise](https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Promise)

qml/QuickPromise/promise.js

@@ -445,3 +445,7 @@ function allSettled(promises) {
 
     return combinator._combined;
 }
+
+Promise.all = all;
+Promise.resolve = resolve;
+Promise.reject = reject;

tests/unittests/tst_promisejs_minimal.qml

@@ -0,0 +1,40 @@
+import QtQuick 2.0
+import QtTest 1.0
+import "qrc:///QuickPromise/promise.js"  as Q
+
+
+TestCase {
+    name : "PromiseJS_Minimal"
+
+    function tick() {
+        wait(0);
+        wait(0);
+        wait(0);
+    }
+
+    function test_constructor() {
+        var callbackResult = {}
+
+        var promise = new Q.Promise(function(resolve, reject) {
+           resolve("ready") ;
+        });
+
+        tick();
+
+        compare(callbackResult.result, "ready");
+    }
+
+    function test_resolve() {
+        var promise = Q.Promise.resolve("done");
+        var callbackResult = {}
+        promise.then(function(result) {
+            callbackResult.result = result;
+        });
+
+        tick();
+
+        compare(callbackResult.result, "done");
+    }
+
+
+}

tests/unittests/unittests.pro

@@ -30,4 +30,5 @@ DISTFILES += \
     tst_timer.qml \
     tst_promisejs_examples.qml \
     tst_promisejs_executor.qml \
-    tst_promisejs_then.qml
+    tst_promisejs_then.qml \
+    tst_promisejs_minimal.qml