fix(secretflag) use title case when printing flag usage

Author: cgoetz-inovex

docs/stackit_beta_alb_observability-credentials_add.md

@@ -22,7 +22,7 @@ stackit beta alb observability-credentials add [flags]
 ```
   -d, --displayname string   Displayname for the credentials
   -h, --help                 Help for "stackit beta alb observability-credentials add"
-      --password string      password. Can be a string (deprecated) or a file path, if prefixed with '@' (example: @./secret.txt). Will be read from stdin when empty.
+      --password string      Password. Can be a string (deprecated) or a file path, if prefixed with '@' (example: @./secret.txt). Will be read from stdin when empty.
   -u, --username string      Username for the credentials
 ```
 

internal/pkg/flags/secret.go

@@ -7,6 +7,8 @@ import (
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 
 	"github.com/stackitcloud/stackit-cli/internal/pkg/print"
 	"github.com/stackitcloud/stackit-cli/internal/pkg/types"
@@ -54,7 +56,8 @@ func (f *secretFlag) Type() string {
 }
 
 func (f *secretFlag) Usage() string {
-	return fmt.Sprintf("%s. Can be a string (deprecated) or a file path, if prefixed with '@' (example: @./secret.txt). Will be read from stdin when empty.", f.name)
+	name := cases.Title(language.AmericanEnglish).String(f.name)
+	return fmt.Sprintf("%s. Can be a string (deprecated) or a file path, if prefixed with '@' (example: @./secret.txt). Will be read from stdin when empty.", name)
 }
 
 func SecretFlagToStringPointer(p *print.Printer, cmd *cobra.Command, flag string) *string {

internal/pkg/flags/secret_test.go

@@ -1,7 +1,9 @@
 package flags
 
 import (
+	"fmt"
 	"io"
+	"strings"
 	"testing"
 	"testing/fstest"
 
@@ -122,3 +124,39 @@ func TestSecretFlag(t *testing.T) {
 		})
 	}
 }
+
+func TestSecretFlag_Usage(t *testing.T) {
+	t.Parallel()
+	tests := []struct{
+		in string
+		want string
+	} {
+		{
+			in: "password",
+			want: "Password",
+		},
+		{
+			in: "Password",
+			want: "Password",
+		},
+		{
+			in: "",
+			want: "",
+		},
+		{
+			in: "secret-key",
+			want: "Secret-Key",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(fmt.Sprintf("%q -> %q", tt.in, tt.want), func(t *testing.T) {
+			t.Parallel()
+			params := testparams.NewTestParams()
+			flag := SecretFlag(tt.in, params.CmdParams)
+			got := flag.Usage()
+			if !strings.HasPrefix(got, tt.want) {
+				t.Fatalf("unexpected usage: got %q, want %q", got, tt.want)
+			}
+		})
+	}
+}