mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2024-05-20 13:48:02 -04:00
361 lines
7.4 KiB
Go
361 lines
7.4 KiB
Go
// This file is part of Gopher2600.
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//
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// Gopher2600 is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Gopher2600 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
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package prefs_test
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"testing"
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"github.com/jetsetilly/gopher2600/prefs"
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"github.com/jetsetilly/gopher2600/test"
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)
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const tempFile = "gopher2600_prefs_test"
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func getTmpPrefFile(t *testing.T) string {
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t.Helper()
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// get info about the temp directory
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td := os.TempDir()
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info, err := os.Stat(td)
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if err != nil {
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t.Errorf("error accessing tmp file: %v", err)
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}
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// check read/write permission for user
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p := info.Mode().Perm()
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if p&0o0700 != 0o0700 {
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t.Errorf("error accessing tmp file: %v", err)
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}
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// return temporary file
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fn := filepath.Join(td, tempFile)
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return fn
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}
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func delTmpPrefFile(t *testing.T, fn string) {
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t.Helper()
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if err := os.Remove(fn); err != nil {
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// not worrying about path errors; these are returned if
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// file doesn't exist
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if _, ok := err.(*os.PathError); !ok {
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t.Errorf("error removing tmp pref file: %v", err)
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}
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}
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}
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func cmpTmpFile(t *testing.T, fn string, expected string) {
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t.Helper()
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f, err := os.Open(fn)
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if err != nil {
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t.Errorf("error opening tmp file: %v", err)
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return
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}
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defer f.Close()
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data, err := io.ReadAll(f)
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if err != nil {
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t.Errorf("error reading tmp file: %v", err)
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return
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}
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expected = fmt.Sprintf("%s\n%s", prefs.WarningBoilerPlate, expected)
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if expected != string(data) {
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t.Errorf("expected data and data in prefs file do not match")
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fmt.Println("expected:")
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fmt.Println(expected)
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fmt.Println("\nin file:")
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fmt.Println(string(data))
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}
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}
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func TestBool(t *testing.T) {
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fn := getTmpPrefFile(t)
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defer delTmpPrefFile(t, fn)
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dsk, err := prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var v prefs.Bool
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var w prefs.Bool
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var x prefs.Bool
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err = dsk.Add("test", &v)
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test.ExpectSuccess(t, err)
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err = dsk.Add("testB", &w)
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test.ExpectSuccess(t, err)
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err = dsk.Add("testC", &x)
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test.ExpectSuccess(t, err)
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err = v.Set(true)
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test.ExpectSuccess(t, err)
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err = w.Set("foo")
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test.ExpectSuccess(t, err)
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err = x.Set("true")
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test.ExpectSuccess(t, err)
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err = dsk.Save()
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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return
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}
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cmpTmpFile(t, fn, "test :: true\ntestB :: false\ntestC :: true\n")
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}
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func TestString(t *testing.T) {
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fn := getTmpPrefFile(t)
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defer delTmpPrefFile(t, fn)
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dsk, err := prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var v prefs.String
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err = dsk.Add("foo", &v)
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test.ExpectSuccess(t, err)
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err = v.Set("bar")
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test.ExpectSuccess(t, err)
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err = dsk.Save()
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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}
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cmpTmpFile(t, fn, "foo :: bar\n")
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}
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func TestFloat(t *testing.T) {
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fn := getTmpPrefFile(t)
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defer delTmpPrefFile(t, fn)
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dsk, err := prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var v prefs.Float
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err = dsk.Add("foo", &v)
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test.ExpectSuccess(t, err)
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err = v.Set("bar")
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test.ExpectFailure(t, err)
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err = v.Set(1.0)
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test.ExpectSuccess(t, err)
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err = v.Set(2.0)
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test.ExpectSuccess(t, err)
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err = v.Set(-3.0)
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test.ExpectSuccess(t, err)
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err = dsk.Save()
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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}
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}
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func TestInt(t *testing.T) {
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fn := getTmpPrefFile(t)
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defer delTmpPrefFile(t, fn)
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dsk, err := prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var v prefs.Int
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var w prefs.Int
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err = dsk.Add("number", &v)
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test.ExpectSuccess(t, err)
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err = dsk.Add("numberB", &w)
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test.ExpectSuccess(t, err)
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err = v.Set(10)
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test.ExpectSuccess(t, err)
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// test string conversion to int
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err = w.Set("99")
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test.ExpectSuccess(t, err)
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err = dsk.Save()
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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}
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cmpTmpFile(t, fn, "number :: 10\nnumberB :: 99\n")
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// while we have a prefs.Int instance set up we'll test some
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// failure conditions
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err = v.Set("---")
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test.ExpectFailure(t, err)
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err = v.Set(1.0)
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test.ExpectFailure(t, err)
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}
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func TestGeneric(t *testing.T) {
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fn := getTmpPrefFile(t)
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defer delTmpPrefFile(t, fn)
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dsk, err := prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var w, h int
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v := prefs.NewGeneric(
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func(s prefs.Value) error {
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_, err := fmt.Sscanf(s.(string), "%d,%d", &w, &h)
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if err != nil {
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return err
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}
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return nil
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},
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func() prefs.Value {
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return fmt.Sprintf("%d,%d", w, h)
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},
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)
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err = dsk.Add("generic", v)
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test.ExpectSuccess(t, err)
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// change values
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w = 1
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h = 2
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// save to disk
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err = dsk.Save()
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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}
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cmpTmpFile(t, fn, "generic :: 1,2\n")
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// reset values
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w = 0
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h = 0
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// reload them from disk
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err = dsk.Load(false)
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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}
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// check that the values have been restoed
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test.ExpectEquality(t, w, 1)
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test.ExpectEquality(t, h, 2)
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}
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// write bool and then a string from a different prefs.Disk instance. tests
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// that the second writing doesn't clobber the results of the first write.
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func TestBoolAndString(t *testing.T) {
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fn := getTmpPrefFile(t)
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defer delTmpPrefFile(t, fn)
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dsk, err := prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var v prefs.Bool
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err = dsk.Add("test", &v)
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test.ExpectSuccess(t, err)
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err = v.Set(true)
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test.ExpectSuccess(t, err)
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err = dsk.Save()
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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return
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}
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// start a new disk instance using the same file. (we haven't deleted it yet)
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dsk, err = prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var s prefs.String
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err = dsk.Add("foo", &s)
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test.ExpectSuccess(t, err)
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err = s.Set("bar")
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test.ExpectSuccess(t, err)
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err = dsk.Save()
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if err != nil {
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t.Errorf("error saving disk: %v", err)
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return
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}
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// compare file. the file should contain contents set by both disk instances
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cmpTmpFile(t, fn, "foo :: bar\ntest :: true\n")
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}
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func TestMaxStringLength(t *testing.T) {
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fn := getTmpPrefFile(t)
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defer delTmpPrefFile(t, fn)
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dsk, err := prefs.NewDisk(fn)
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if err != nil {
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t.Errorf("error preparing disk: %v", err)
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return
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}
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var s prefs.String
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err = dsk.Add("test", &s)
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test.ExpectSuccess(t, err)
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err = s.Set("123456789")
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test.ExpectSuccess(t, err)
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test.ExpectEquality(t, s.String(), "123456789")
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// setting maximum length will crop the existing string
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s.SetMaxLen(5)
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test.ExpectEquality(t, s.String(), "12345")
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// unsetting a maximum length (using value zero) will not result in
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// cropped string infomration reappearing
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s.SetMaxLen(0)
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test.ExpectEquality(t, s.String(), "12345")
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// set string after setting a maximum length will result in the set string
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// being cropped
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s.SetMaxLen(3)
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err = s.Set("abcdefghi")
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test.ExpectSuccess(t, err)
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test.ExpectEquality(t, s.String(), "abc")
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}
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