updated SafeWrap tests

tools/routine/routine_test.go

@@ -1,6 +1,7 @@
 package routine_test
 
 import (
+	"errors"
 	"strings"
 	"sync"
 	"testing"
@@ -28,24 +29,51 @@ func TestFireAndForget(t *testing.T) {
 }
 
 func TestSafeWrap(t *testing.T) {
-	called := false
+	t.Run("panic", func(t *testing.T) {
+		called := false
 
-	fn := func() error {
-		called = true
-		panic("test_recover")
-	}
+		fn := func() error {
+			called = true
+			panic("test_recover")
+		}
 
-	err := routine.SafeWrap(fn)()
+		err := routine.SafeWrap(fn)()
 
-	if !called {
-		t.Fatal("Expected fn to be called.")
-	}
+		if !called {
+			t.Fatal("Expected fn to be called.")
+		}
 
-	if err == nil {
-		t.Fatal("Expected fn panic to be converted to error")
-	}
+		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")
-	}
+		if !strings.Contains(err.Error(), "test_recover") {
+			t.Fatal("Expected the returned error to contain the recovered panic value")
+		}
+	})
+
+	t.Run("regular error", func(t *testing.T) {
+		called := false
+
+		fn := func() error {
+			called = true
+			return errors.New("test_error")
+		}
+
+		err := routine.SafeWrap(fn)()
+
+		if !called {
+			t.Fatal("Expected fn to be called.")
+		}
+
+		if err == nil {
+			t.Fatal("Expected to return the wrapped fn error")
+		}
+
+		errStr := err.Error()
+		expected := "test_error"
+		if errStr != expected {
+			t.Fatalf("Expected %s error, got %s", expected, errStr)
+		}
+	})
 }