test: add initial tests for WebAssembly

cmd/reticulum-wasm/main_test.go

@@ -0,0 +1,29 @@
+//go:build js && wasm
+// +build js,wasm
+
+package main
+
+import (
+	"syscall/js"
+	"testing"
+)
+
+func TestRun(t *testing.T) {
+	readyCalled := false
+	js.Global().Set("reticulumReady", js.FuncOf(func(this js.Value, args []js.Value) interface{} {
+		readyCalled = true
+		return nil
+	}))
+
+	run()
+
+	if !readyCalled {
+		t.Error("reticulumReady was not called by run()")
+	}
+
+	reticulum := js.Global().Get("reticulum")
+	if reticulum.IsUndefined() {
+		t.Error("reticulum functions were not registered")
+	}
+}
+