Updated and added tests for Event Lib

Author: Vardan2009

eiger.Tests/EigerTests.cs

@@ -381,7 +381,24 @@ public void ReturnInsideLoopsTest()
     }
 
     [TestMethod]
-    public void MathLibTest() {
+    public void EventLibTest()
+    {
+        // Subscribing to event and invoking event
+        TestCode(
+            "include event\nlet ev = Event()\nev.Subscribe(func(msg) emitln(\"First Subscriber: \" + msg) end)\nev.Subscribe(func(msg) emitln(\"Second Subscriber: \" + msg) end)\nev.Invoke(\"Hello!\")",
+            "First Subscriber: Hello!\nSecond Subscriber: Hello!\n"
+        );
+
+        // Unsubscribing from event
+        TestCode(
+            "include event\nfunc functionOne(args) emitln(\"This is function one\") end\nfunc functionTwo(args) emitln(\"This is function two\") end\nlet ev = Event()\nev.Subscribe(functionTwo)\nev.Subscribe(functionOne)\nev.Unsubscribe(functionTwo)\nev.Invoke(nix)",
+            "This is function one"
+        );
+    }
+
+    [TestMethod]
+    public void MathLibTest()
+    {
         TestCode(
             "include math\nemitln(math.abs(-128))",
             "128"

eiger/Execution/Function.cs

@@ -7,6 +7,8 @@
 using EigerLang.Execution;
 using EigerLang.Parsing;
 
+using Boolean = EigerLang.Execution.BuiltInTypes.Boolean;
+
 namespace EigerLang.Execution;
 
 // a base function from which both custom and built-in functions will extend
@@ -25,6 +27,18 @@ public void CheckArgs(string path, int line, int pos, int argCount)
     }
 
     public abstract ReturnResult Execute(List<Value> args, int line, int pos, string path); // abstract execute function
+
+    public override Boolean ComparisonEqeq(object other) {
+        if(other is BaseFunction f)
+            return new Boolean(filename, line, pos, name == f.name && arg_n.SequenceEqual(f.arg_n) && symbolTable == f.symbolTable);
+        return new Boolean(filename, line, pos, false);
+    }
+
+    public override Boolean ComparisonNeqeq(object other) {
+         if(other is BaseFunction f)
+            return new Boolean(filename, line, pos, !(name == f.name && arg_n.SequenceEqual(f.arg_n) && symbolTable == f.symbolTable));
+        return new Boolean(filename, line, pos, true);
+    }
 }
 
 // custom functions

eiger/modules/event.ei

@@ -9,7 +9,7 @@
 		let newSubscribers = []
 		for i = 0 to subscribers.length do
 			if subscribers[i] != subscriber then
-				newSubscribers += subscibers[i]
+				newSubscribers += subscribers[i]
 			end
 		end
 		subscribers = newSubscribers