diff --git a/header_test.go b/header_test.go
index a060ae6..832c63d 100644
--- a/header_test.go
+++ b/header_test.go
@@ -8,14 +8,13 @@ import (
 	"testing"
 )
 
-// TestImportance_StringFuncs tests the different string method of the Importance object
-func TestImportance_StringFuncs(t *testing.T) {
+func TestImportance_Stringer(t *testing.T) {
 	tests := []struct {
-		name   string
-		imp    Importance
-		wantns string
-		xprio  string
-		want   string
+		name    string
+		imp     Importance
+		wantnum string
+		xprio   string
+		want    string
 	}{
 		{"Importance: Non-Urgent", ImportanceNonUrgent, "0", "5", "non-urgent"},
 		{"Importance: Low", ImportanceLow, "0", "5", "low"},
@@ -24,22 +23,35 @@ func TestImportance_StringFuncs(t *testing.T) {
 		{"Importance: Urgent", ImportanceUrgent, "1", "1", "urgent"},
 		{"Importance: Unknown", 9, "", "", ""},
 	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			if tt.imp.NumString() != tt.wantns {
-				t.Errorf("wrong number string for Importance returned. Expected: %s, got: %s",
-					tt.wantns, tt.imp.NumString())
-			}
-			if tt.imp.XPrioString() != tt.xprio {
-				t.Errorf("wrong x-prio string for Importance returned. Expected: %s, got: %s",
-					tt.xprio, tt.imp.XPrioString())
-			}
-			if tt.imp.String() != tt.want {
-				t.Errorf("wrong string for Importance returned. Expected: %s, got: %s",
-					tt.want, tt.imp.String())
-			}
-		})
-	}
+	t.Run("String", func(t *testing.T) {
+		for _, tt := range tests {
+			t.Run(tt.name, func(t *testing.T) {
+				if tt.imp.String() != tt.want {
+					t.Errorf("wrong string for Importance returned. Expected: %s, got: %s", tt.want, tt.imp.String())
+				}
+			})
+		}
+	})
+	t.Run("NumString", func(t *testing.T) {
+		for _, tt := range tests {
+			t.Run(tt.name, func(t *testing.T) {
+				if tt.imp.NumString() != tt.wantnum {
+					t.Errorf("wrong number string for Importance returned. Expected: %s, got: %s", tt.wantnum,
+						tt.imp.NumString())
+				}
+			})
+		}
+	})
+	t.Run("XPrioString", func(t *testing.T) {
+		for _, tt := range tests {
+			t.Run(tt.name, func(t *testing.T) {
+				if tt.imp.XPrioString() != tt.xprio {
+					t.Errorf("wrong x-prio string for Importance returned. Expected: %s, got: %s", tt.xprio,
+						tt.imp.XPrioString())
+				}
+			})
+		}
+	})
 }
 
 // TestAddrHeader_String tests the string method of the AddrHeader object