mocks for network address obtaining

Author: BalaM314

build/scripts/main.js

@@ -54,4 +54,64 @@ class Fi {
   }
 }
 
-Object.assign(globalThis, {Pattern, ObjectIntMap, Seq, Fi});
+const Collections = {
+  list<T>(e:Enumeration<T>){
+    return new ArrayList(e.items);
+  }
+};
+class Enumeration<T> {
+  constructor(public items:T[]){}
+}
+class ArrayList<T> {
+  constructor(public items:T[]){}
+  stream(){
+    return new Stream(this.items);
+  }
+}
+class NetworkInterface {
+  constructor(public interfaceAddresses: InterfaceAddress[]){}
+  getInterfaceAddresses(){ return new ArrayList(this.interfaceAddresses); }
+}
+class Stream<T> {
+  iterator: IteratorObject<T, undefined>;
+  constructor(items:T[]){
+    this.iterator = items.values();
+  }
+  map<U>(operation:(item:T) => U){
+    (this as never as Stream<U>).iterator = this.iterator.map(operation);
+    return this as never as Stream<U>;
+  }
+  filter(operation:(item:T) => boolean){
+    this.iterator = this.iterator.filter(operation);
+    return this;
+  }
+  findFirst(){
+    return new Optional<T>(this.iterator.next()?.value ?? null);
+  }
+}
+class Optional<T> {
+  constructor(public item:T | null){}
+  orElse<U>(value:U){
+    return this.item ?? value;
+  }
+}
+class InterfaceAddress {
+  constructor(public address: InetAddress){}
+  getAddress(){ return this.address; }
+}
+class InetAddress {
+  constructor(public hostAddress: string){}
+  getHostAddress(){ return this.hostAddress; }
+}
+class Inet4Address extends InetAddress {
+
+}
+
+const Packages = {
+  java: {
+    net: { NetworkInterface, Inet4Address },
+    util: { Collections }
+  }
+};
+
+Object.assign(globalThis, {Pattern, ObjectIntMap, Seq, Fi, Packages});

spec/src/env.ts

@@ -6,6 +6,7 @@
 		"types": ["node", "jasmine"],
 		"composite": false,
 		"declaration": false,
+		"lib": ["ESNext"],
 	},
 	"references": [{"path": ".."}],
 	"include": [