package server

import "testing"

func TestCleanProfanity(t *testing.T) {
	tests := []struct {
		name     string
		input    string
		expected string
	}{
		{
			name:     "no profanity",
			input:    "hello world",
			expected: "hello world",
		},
		{
			name:     "case insensitive",
			input:    "That was a KERFUFFLE",
			expected: "That was a ****",
		},
		{
			name:     "not a substring match",
			input:    "kerfuffling away",
			expected: "kerfuffling away",
		},
		{
			name:     "multiple words",
			input:    "sharbert fornax",
			expected: "**** ****",
		},
		{
			name:     "empty body",
			input:    "",
			expected: "",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := cleanProfanity(tt.input)

			if got != tt.expected {
				t.Errorf("cleanProfanity(%q) = %q, want %q", tt.input, got, tt.expected)
			}
		})
	}
}