Add di-lite tests

di-lite/di-lite-test.ts

@@ -0,0 +1,137 @@
+interface Dependency {
+    dependencies?: string;
+}
+
+function doTest(test: (ctx: DiCreateContext, ...obj: Dependency[]) => void) {
+    // create di context
+    var ctx = di.createContext(),
+        A: Dependency = () => {
+            this.dependencies = "b, c";
+        },
+        B: Dependency = () => {
+            this.dependencies = "c";
+        },
+        C: Dependency = () => {};
+
+    // register a class with an unique name
+    ctx.register("a", A);
+    ctx.register("b", B);
+    ctx.register("c", C);
+
+    test(ctx, A, B, C);
+}
+
+module BasicWiring {
+    doTest(ctx => {
+        // initialize di container so all singleton(default) objects will be wired at this stage
+        ctx.initialize();
+
+        var instanceOfA = ctx.get("a");
+        instanceOfA.b === ctx.get("b"); // true
+        instanceOfA.c === ctx.get("c"); // true
+
+        var instanceOfB = ctx.get("b");
+        instanceOfB.c === ctx.get("c"); // true
+    });
+}
+
+module WiringWithAssignment {
+    doTest((ctx, A) => {
+        A.dependencies = "bee=b, c"; // mix explicit and implicit assignment
+
+        ctx.initialize();
+
+        var instanceOfA = ctx.get("a");
+        instanceOfA.bee === ctx.get("b"); // true - explicit assignment
+        instanceOfA.c === ctx.get("c"); // true - implicit assignment
+    });
+}
+
+module PassiveDependencyResolution {
+    doTest((ctx, A) => {
+        ctx.register("a", A);
+        ctx.get("a"); // this triggers the dependency resolution for "a" alone
+        ctx.initialize();
+    });
+}
+
+module PrototypeStrategy {
+    doTest((ctx, A) => {
+        ctx.register("prototype", A).strategy(di.strategy.proto);
+        ctx.get("prototype") === ctx.get("prototype"); // false
+        ctx.create("prototype", 100); // create can be used if you want to explicitly pass in a new parameter
+    });
+}
+
+module PassingConstructorArguments {
+    class ProfileView { }
+
+    doTest(ctx => {
+        ctx.register("str", String, "hello world"); // signle simple argument
+        ctx.register("profileView", ProfileView, { el: "#profile_div" }); // signle object literal argument
+        ctx.register("array", Array, ["Saab", "Volvo", "BMW"]); // multiple argument is passed in using an array
+    });
+}
+
+module CyclicalDependency {
+    doTest((ctx, A, B) => {
+        A.dependencies = "b";
+        B.dependencies = "a";
+
+        ctx.register("a", A);
+        ctx.register("b", B);
+
+        ctx.initialize();
+
+        ctx.get("a").b === ctx.get("b"); // true
+        ctx.get("b").a === ctx.get("a"); // true
+        ctx.get("a").b.a === ctx.get("a"); // true
+        ctx.get("b").a.b === ctx.get("b"); // true
+    });
+}
+
+module FunctionalObject {
+    doTest(ctx => {
+        var FuncObject = spec => {
+                var that = {};
+                return that;
+            },
+            spec = [];
+
+        ctx.register("funcObjSingleton", FuncObject, spec).factory(di.factory.func);
+
+        // function chaining can be used to customize your object registration
+        ctx.register("funcObjProto", FuncObject, spec)
+            .strategy(di.strategy.proto)
+            .factory(di.factory.func);
+
+        ctx.initialize();
+
+        ctx.get("funcObjSingleton"); // will return you a signleton instance of FuncObject
+        ctx.get("funcObjProto"); // will return you a new instance of FuncObject each time
+    });
+}
+
+module RuntimeDependenciesOverride {
+    doTest((ctx, A) => {
+        ctx.register("a", A)
+            .dependencies("bee=b"); // dependencies specified here will take precedence
+        ctx.get("a").bee === ctx.get("b"); // true
+    });
+}
+
+module CreateYourOwn {
+    class Backbone {
+        history: History = new History();
+    }
+
+    class History {
+        start() {}
+    }
+
+    doTest(ctx => {
+        ctx.register("history").object(new Backbone().history);
+        ctx.get("history").start(); // you can use it since it is already created and initialized
+        ctx.initialize(); // initialize the rest of the objects
+    });
+}