// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
// SPDX-License-Identifier: BSD-3-Clause

package verify

import (
	"testing"
)

func TestFuzzResultString(t *testing.T) {
	t.Run("ok", func(t *testing.T) {
		r := FuzzResult{Func: "add", Iterations: 100, Matches: 100}
		s := r.String()
		if s != "add: 100/100 iterations match" {
			t.Errorf("String() = %q", s)
		}
	})

	t.Run("mismatch", func(t *testing.T) {
		r := FuzzResult{Func: "mul", Iterations: 100, Matches: 95, Mismatches: 5, FirstFail: "iter 23"}
		s := r.String()
		if s != "mul: 95/100 match, 5 MISMATCH — iter 23" {
			t.Errorf("String() = %q", s)
		}
	})

	t.Run("crash", func(t *testing.T) {
		r := FuzzResult{Func: "dec", Iterations: 100, Matches: 99, Mismatches: 1, FirstFail: "SIGSEGV", CrashInput: []byte{0x01, 0x02}}
		s := r.String()
		if s != "dec: 99/100 match, 1 MISMATCH — SIGSEGV\n  input: 0102" {
			t.Errorf("String() = %q", s)
		}
	})
}

func TestArrayLen(t *testing.T) {
	tests := []struct {
		typ  string
		want int
	}{
		{"*[32]uint16", 32},
		{"*[16]int32", 16},
		{"bad", 1},
		{"*[]", 1},
		{"*[0x]", 1},
	}
	for _, tt := range tests {
		if got := arrayLen(tt.typ); got != tt.want {
			t.Errorf("arrayLen(%q) = %d, want %d", tt.typ, got, tt.want)
		}
	}
}