// Copyright 2020 Gregory Petrosyan <gregory.petrosyan@gmail.com>//// This Source Code Form is subject to the terms of the Mozilla Public// License, v. 2.0. If a copy of the MPL was not distributed with this// file, You can obtain one at https://mozilla.org/MPL/2.0/. package rapid import (	"os"	"path/filepath"	"testing") func TestFailFilePattern(t *testing.T) {	t.Parallel() 	Check(t, func(t *T) {		testName := String().Draw(t, "testName")		_, fileName := failFileName(testName)		pattern := failFilePattern(testName)		match, err := filepath.Match(pattern, fileName)		if !match || err != nil {			t.Fatalf("pattern %q does not match %q; err %v", pattern, fileName, err)		}	})} func TestFailFileRoundtrip(t *testing.T) {	t.Parallel() 	Check(t, func(t *T) {		var (			// OS X seems to have issues with Go 1.16 and String(), reporting "illegal byte sequence" when trying to rename the file			testName = StringMatching(`[a-zA-Z0-9._-]+`).Draw(t, "testName")			version  = StringMatching(`[a-zA-Z0-9._-]+`).Draw(t, "version")			seed     = Uint64().Draw(t, "seed")			output   = SliceOf(Byte()).Draw(t, "output")			buf      = SliceOf(Uint64()).Draw(t, "buf")		) 		dirName, fileName := failFileName(testName)		err := saveFailFile(fileName, version, output, seed, buf)		if err != nil {			t.Fatal(err)		}		defer func() { _ = os.RemoveAll(dirName) }() 		version2, seed2, buf2, err := loadFailFile(fileName)		if err != nil {			t.Fatal(err)		} 		if version2 != version {			t.Fatalf("got version %q instead of %q", version2, version)		}		if seed2 != seed {			t.Fatalf("got seed %v instead of %v", seed2, seed)		}		if len(buf2) != len(buf) {			t.Fatalf("got buf of length %v instead of %v", len(buf2), len(buf))		}		for i, u := range buf {			if buf2[i] != u {				t.Fatalf("got %v instead of %v at %v", buf2[i], u, i)			}		}	})}