512 lines
9.1 KiB
Go
512 lines
9.1 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package ignore
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import (
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime"
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"testing"
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)
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func TestIgnore(t *testing.T) {
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pats := New(true)
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err := pats.Load("testdata/.stignore")
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if err != nil {
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t.Fatal(err)
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}
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var tests = []struct {
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f string
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r bool
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}{
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{"afile", false},
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{"bfile", true},
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{"cfile", false},
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{"dfile", false},
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{"efile", true},
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{"ffile", true},
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{"dir1", false},
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{filepath.Join("dir1", "cfile"), true},
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{filepath.Join("dir1", "dfile"), false},
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{filepath.Join("dir1", "efile"), true},
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{filepath.Join("dir1", "ffile"), false},
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{"dir2", false},
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{filepath.Join("dir2", "cfile"), false},
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{filepath.Join("dir2", "dfile"), true},
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{filepath.Join("dir2", "efile"), true},
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{filepath.Join("dir2", "ffile"), false},
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{filepath.Join("dir3"), true},
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{filepath.Join("dir3", "afile"), true},
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{"lost+found", true},
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}
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for i, tc := range tests {
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if r := pats.Match(tc.f); r != tc.r {
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t.Errorf("Incorrect ignoreFile() #%d (%s); E: %v, A: %v", i, tc.f, tc.r, r)
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}
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}
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}
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func TestExcludes(t *testing.T) {
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stignore := `
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!iex2
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!ign1/ex
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ign1
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i*2
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!ign2
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`
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pats := New(true)
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err := pats.Parse(bytes.NewBufferString(stignore), ".stignore")
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if err != nil {
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t.Fatal(err)
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}
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var tests = []struct {
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f string
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r bool
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}{
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{"ign1", true},
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{"ign2", true},
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{"ibla2", true},
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{"iex2", false},
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{filepath.Join("ign1", "ign"), true},
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{filepath.Join("ign1", "ex"), false},
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{filepath.Join("ign1", "iex2"), false},
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{filepath.Join("iex2", "ign"), false},
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{filepath.Join("foo", "bar", "ign1"), true},
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{filepath.Join("foo", "bar", "ign2"), true},
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{filepath.Join("foo", "bar", "iex2"), false},
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}
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for _, tc := range tests {
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if r := pats.Match(tc.f); r != tc.r {
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t.Errorf("Incorrect match for %s: %v != %v", tc.f, r, tc.r)
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}
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}
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}
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func TestBadPatterns(t *testing.T) {
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var badPatterns = []string{
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"[",
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"/[",
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"**/[",
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"#include nonexistent",
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"#include .stignore",
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"!#include makesnosense",
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}
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for _, pat := range badPatterns {
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err := New(true).Parse(bytes.NewBufferString(pat), ".stignore")
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if err == nil {
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t.Errorf("No error for pattern %q", pat)
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}
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}
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}
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func TestCaseSensitivity(t *testing.T) {
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ign := New(true)
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err := ign.Parse(bytes.NewBufferString("test"), ".stignore")
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if err != nil {
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t.Error(err)
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}
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match := []string{"test"}
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dontMatch := []string{"foo"}
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switch runtime.GOOS {
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case "darwin", "windows":
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match = append(match, "TEST", "Test", "tESt")
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default:
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dontMatch = append(dontMatch, "TEST", "Test", "tESt")
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}
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for _, tc := range match {
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if !ign.Match(tc) {
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t.Errorf("Incorrect match for %q: should be matched", tc)
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}
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}
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for _, tc := range dontMatch {
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if ign.Match(tc) {
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t.Errorf("Incorrect match for %q: should not be matched", tc)
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}
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}
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}
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func TestCaching(t *testing.T) {
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fd1, err := ioutil.TempFile("", "")
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if err != nil {
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t.Fatal(err)
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}
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fd2, err := ioutil.TempFile("", "")
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if err != nil {
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t.Fatal(err)
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}
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defer fd1.Close()
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defer fd2.Close()
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defer os.Remove(fd1.Name())
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defer os.Remove(fd2.Name())
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_, err = fd1.WriteString("/x/\n#include " + filepath.Base(fd2.Name()) + "\n")
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if err != nil {
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t.Fatal(err)
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}
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fd2.WriteString("/y/\n")
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pats := New(true)
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err = pats.Load(fd1.Name())
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if err != nil {
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t.Fatal(err)
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}
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if pats.matches.len() != 0 {
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t.Fatal("Expected empty cache")
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}
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if len(pats.patterns) != 4 {
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t.Fatal("Incorrect number of patterns loaded", len(pats.patterns), "!=", 4)
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}
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// Cache some outcomes
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for _, letter := range []string{"a", "b", "x", "y"} {
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pats.Match(letter)
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}
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if pats.matches.len() != 4 {
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t.Fatal("Expected 4 cached results")
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}
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// Reload file, expect old outcomes to be preserved
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err = pats.Load(fd1.Name())
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if err != nil {
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t.Fatal(err)
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}
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if pats.matches.len() != 4 {
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t.Fatal("Expected 4 cached results")
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}
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// Modify the include file, expect empty cache
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fd2.WriteString("/z/\n")
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err = pats.Load(fd1.Name())
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if err != nil {
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t.Fatal(err)
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}
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if pats.matches.len() != 0 {
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t.Fatal("Expected 0 cached results")
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}
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// Cache some outcomes again
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for _, letter := range []string{"b", "x", "y"} {
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pats.Match(letter)
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}
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// Verify that outcomes preserved on next laod
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err = pats.Load(fd1.Name())
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if err != nil {
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t.Fatal(err)
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}
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if pats.matches.len() != 3 {
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t.Fatal("Expected 3 cached results")
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}
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// Modify the root file, expect cache to be invalidated
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fd1.WriteString("/a/\n")
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err = pats.Load(fd1.Name())
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if err != nil {
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t.Fatal(err)
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}
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if pats.matches.len() != 0 {
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t.Fatal("Expected cache invalidation")
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}
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// Cache some outcomes again
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for _, letter := range []string{"b", "x", "y"} {
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pats.Match(letter)
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}
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// Verify that outcomes provided on next laod
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err = pats.Load(fd1.Name())
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if err != nil {
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t.Fatal(err)
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}
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if pats.matches.len() != 3 {
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t.Fatal("Expected 3 cached results")
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}
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}
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func TestCommentsAndBlankLines(t *testing.T) {
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stignore := `
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// foo
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//bar
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//!baz
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//#dex
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// ips
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`
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pats := New(true)
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err := pats.Parse(bytes.NewBufferString(stignore), ".stignore")
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if err != nil {
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t.Error(err)
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}
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if len(pats.patterns) > 0 {
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t.Errorf("Expected no patterns")
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}
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}
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var result bool
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func BenchmarkMatch(b *testing.B) {
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stignore := `
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.frog
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.frog*
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.frogfox
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.whale
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.whale/*
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.dolphin
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.dolphin/*
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~ferret~.*
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.ferret.*
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flamingo.*
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flamingo
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*.crow
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*.crow
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`
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pats := New(false)
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err := pats.Parse(bytes.NewBufferString(stignore), ".stignore")
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if err != nil {
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b.Error(err)
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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result = pats.Match("filename")
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}
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}
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func BenchmarkMatchCached(b *testing.B) {
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stignore := `
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.frog
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.frog*
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.frogfox
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.whale
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.whale/*
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.dolphin
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.dolphin/*
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~ferret~.*
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.ferret.*
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flamingo.*
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flamingo
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*.crow
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*.crow
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`
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// Caches per file, hence write the patterns to a file.
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fd, err := ioutil.TempFile("", "")
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if err != nil {
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b.Fatal(err)
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}
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_, err = fd.WriteString(stignore)
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defer fd.Close()
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defer os.Remove(fd.Name())
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if err != nil {
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b.Fatal(err)
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}
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// Load the patterns
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pats := New(true)
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err = pats.Load(fd.Name())
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if err != nil {
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b.Fatal(err)
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}
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// Cache the outcome for "filename"
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pats.Match("filename")
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// This load should now load the cached outcomes as the set of patterns
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// has not changed.
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err = pats.Load(fd.Name())
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if err != nil {
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b.Fatal(err)
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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result = pats.Match("filename")
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}
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}
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func TestCacheReload(t *testing.T) {
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fd, err := ioutil.TempFile("", "")
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if err != nil {
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t.Fatal(err)
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}
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defer fd.Close()
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defer os.Remove(fd.Name())
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// Ignore file matches f1 and f2
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_, err = fd.WriteString("f1\nf2\n")
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if err != nil {
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t.Fatal(err)
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}
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pats := New(true)
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err = pats.Load(fd.Name())
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if err != nil {
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t.Fatal(err)
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}
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// Verify that both are ignored
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if !pats.Match("f1") {
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t.Error("Unexpected non-match for f1")
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}
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if !pats.Match("f2") {
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t.Error("Unexpected non-match for f2")
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}
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if pats.Match("f3") {
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t.Error("Unexpected match for f3")
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}
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// Rewrite file to match f1 and f3
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err = fd.Truncate(0)
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if err != nil {
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t.Fatal(err)
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}
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_, err = fd.Seek(0, os.SEEK_SET)
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if err != nil {
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t.Fatal(err)
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}
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_, err = fd.WriteString("f1\nf3\n")
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if err != nil {
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t.Fatal(err)
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}
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err = pats.Load(fd.Name())
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if err != nil {
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t.Fatal(err)
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}
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// Verify that the new patterns are in effect
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if !pats.Match("f1") {
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t.Error("Unexpected non-match for f1")
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}
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if pats.Match("f2") {
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t.Error("Unexpected match for f2")
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}
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if !pats.Match("f3") {
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t.Error("Unexpected non-match for f3")
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}
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}
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func TestHash(t *testing.T) {
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p1 := New(true)
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err := p1.Load("testdata/.stignore")
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if err != nil {
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t.Fatal(err)
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}
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// Same list of patterns as testdata/.stignore, after expansion
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stignore := `
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dir2/dfile
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dir3
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bfile
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dir1/cfile
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**/efile
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/ffile
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lost+found
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`
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p2 := New(true)
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err = p2.Parse(bytes.NewBufferString(stignore), ".stignore")
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if err != nil {
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t.Fatal(err)
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}
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// Not same list of patterns
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stignore = `
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dir2/dfile
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dir3
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bfile
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dir1/cfile
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/ffile
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lost+found
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`
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p3 := New(true)
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err = p3.Parse(bytes.NewBufferString(stignore), ".stignore")
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if err != nil {
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t.Fatal(err)
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}
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if p1.Hash() == "" {
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t.Error("p1 hash blank")
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}
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if p2.Hash() == "" {
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t.Error("p2 hash blank")
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}
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if p3.Hash() == "" {
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t.Error("p3 hash blank")
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}
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if p1.Hash() != p2.Hash() {
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t.Error("p1-p2 hashes differ")
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}
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if p1.Hash() == p3.Hash() {
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t.Error("p1-p3 hashes same")
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}
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}
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func TestHashOfEmpty(t *testing.T) {
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p1 := New(true)
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err := p1.Load("testdata/.stignore")
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if err != nil {
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t.Fatal(err)
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}
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firstHash := p1.Hash()
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// Reloading with a non-existent file should empty the patterns and
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// recalculate the hash. d41d8cd98f00b204e9800998ecf8427e is the md5 of
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// nothing.
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p1.Load("file/does/not/exist")
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secondHash := p1.Hash()
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if firstHash == secondHash {
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t.Error("hash did not change")
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}
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if secondHash != "d41d8cd98f00b204e9800998ecf8427e" {
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t.Error("second hash is not hash of empty string")
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}
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if len(p1.patterns) != 0 {
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t.Error("there are more than zero patterns")
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}
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}
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