chore(cmd): use vars and add util tests

Author: rektdeckard

cmd/lk/app.go

@@ -196,7 +196,7 @@ func listTemplates(ctx context.Context, cmd *cli.Command) error {
 		for _, t := range templates {
 			table.Row(
 				t.Name,
-				strings.Join(wrapToLines(t.Desc, 40), "\n"),
+				strings.Join(wrapToLines(t.Desc, maxDescLength), "\n"),
 				strings.Join(t.Tags, ", "),
 			)
 		}

cmd/lk/utils_test.go

@@ -56,3 +56,34 @@ func TestMapStrings(t *testing.T) {
 		t.Error("mapStrings should apply the function to all elements")
 	}
 }
+
+func TestEllipziseTo(t *testing.T) {
+	str := "This is some long string that should be ellipsized"
+	ellipsized := ellipsizeTo(str, 12)
+	if len(ellipsized) != 12 {
+		t.Error("ellipsizeTo should return a string of the specified length")
+	}
+	if ellipsized != "This is s..." {
+		t.Error("ellipsizeTo should ellipsize the string")
+	}
+}
+
+func TestWrapToLines(t *testing.T) {
+	str := "This is a long string that should be wrapped to multiple lines"
+	wrapped := wrapToLines(str, 10)
+	if len(wrapped) != 8 {
+		t.Error("wrapToLines should return a slice of lines")
+	}
+	if !slices.Equal([]string{
+		"This is a",
+		"long",
+		"string",
+		"that",
+		"should be",
+		"wrapped to",
+		"multiple",
+		"lines",
+	}, wrapped) {
+		t.Error("wrapToLines should wrap the string to the specified width")
+	}
+}