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// Copyright 2020 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package kconfig
import (
"bytes"
"fmt"
"testing"
)
func TestMinimize(t *testing.T) {
const (
kconfig = `
mainmenu "test"
config A
config B
config C
config D
config I
config S
`
baseConfig = `
CONFIG_A=y
CONFIG_I=1
`
fullConfig = `
CONFIG_A=y
CONFIG_B=y
CONFIG_C=y
CONFIG_D=y
CONFIG_I=42
CONFIG_S="foo"
`
)
type Test struct {
pred func(*ConfigFile) (bool, error)
result string
}
tests := []Test{
{
pred: func(cf *ConfigFile) (bool, error) {
return true, nil
},
result: baseConfig,
},
{
pred: func(cf *ConfigFile) (bool, error) {
return false, nil
},
result: fullConfig,
},
{
pred: func(cf *ConfigFile) (bool, error) {
return cf.Value("C") != No, nil
},
result: `
CONFIG_A=y
CONFIG_I=42
CONFIG_S="foo"
CONFIG_C=y
`,
},
}
kconf, err := ParseData([]byte(kconfig), "kconf")
if err != nil {
t.Fatal(err)
}
base, err := ParseConfigData([]byte(baseConfig), "base")
if err != nil {
t.Fatal(err)
}
full, err := ParseConfigData([]byte(fullConfig), "full")
if err != nil {
t.Fatal(err)
}
for i, test := range tests {
t.Run(fmt.Sprint(i), func(t *testing.T) {
trace := new(bytes.Buffer)
res, err := kconf.Minimize(base, full, test.pred, trace)
t.Log(trace.String())
if err != nil {
t.Fatal(err)
}
result := string(res.Serialize())
if result != test.result {
t.Fatalf("got:\n%v\n\nwant:\n%s", result, test.result)
}
})
}
}
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