fixed unhandled panic and wrapped all internal goroutines

tools/routine/routine.go

@@ -1,6 +1,7 @@
 package routine
 
 import (
+	"fmt"
 	"log"
 	"runtime"
 	"sync"
@@ -33,3 +34,17 @@ func FireAndForget(f func(), wg ...*sync.WaitGroup) {
 		f()
 	}()
 }
+
+// SafeWrap wraps the provided function with auto panic recover handling
+// and returns any eventual panic as regular error.
+func SafeWrap(f func() error) func() error {
+	return func() (err error) {
+		defer func() {
+			if r := recover(); r != nil {
+				err = fmt.Errorf("[SafeWrap] recovered from panic: %v", r)
+			}
+		}()
+
+		return f()
+	}
+}

tools/routine/routine_test.go

@@ -1,6 +1,7 @@
 package routine_test
 
 import (
+	"strings"
 	"sync"
 	"testing"
 
@@ -12,7 +13,7 @@ func TestFireAndForget(t *testing.T) {
 
 	fn := func() {
 		called = true
-		panic("test")
+		panic("test_recover")
 	}
 
 	wg := &sync.WaitGroup{}
@@ -22,6 +23,29 @@ func TestFireAndForget(t *testing.T) {
 	wg.Wait()
 
 	if !called {
-		t.Error("Expected fn to be called.")
+		t.Fatal("Expected fn to be called.")
+	}
+}
+
+func TestSafeWrap(t *testing.T) {
+	called := false
+
+	fn := func() error {
+		called = true
+		panic("test_recover")
+	}
+
+	err := routine.SafeWrap(fn)()
+
+	if !called {
+		t.Fatal("Expected fn to be called.")
+	}
+
+	if err == nil {
+		t.Fatal("Expected fn panic to be converted to error")
+	}
+
+	if !strings.Contains(err.Error(), "test_recover") {
+		t.Fatal("Expected the returned error to contain the recovered panic value")
 	}
 }