feat!: redefine hostname as a required property that maps to --host (#256)

internal/config/stringutil/stringutil_test.go

@@ -0,0 +1,46 @@
+package stringutil
+
+import "testing"
+
+func TestSanitizeID(t *testing.T) {
+	tcs := []struct {
+		name string
+		id   string
+		want string
+	}{
+		{
+			name: "empty",
+			id:   "",
+			want: "",
+		},
+		{
+			name: "no change",
+			id:   "abc123",
+			want: "abc123",
+		},
+		{
+			name: "spaces",
+			id:   "a b c 1 2 3",
+			want: "a_b_c_1_2_3",
+		},
+		{
+			name: "special characters",
+			id:   "a!b@c#1$2%3",
+			want: "a_b_c_1_2_3",
+		},
+		{
+			name: "unicode",
+			id:   "a👍b👍c👍1👍2👍3",
+			want: "a_b_c_1_2_3",
+		},
+	}
+
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			got := SanitizeID(tc.id)
+			if got != tc.want {
+				t.Errorf("SanitizeID(%q) = %q, want %q", tc.id, got, tc.want)
+			}
+		})
+	}
+}