trufflehog/pkg/decoders/base64_test.go
2022-04-15 12:09:01 -07:00

102 lines
2.4 KiB
Go

package decoders
import (
"testing"
"github.com/kylelemons/godebug/pretty"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
"github.com/trufflesecurity/trufflehog/v3/pkg/sources"
)
func TestBase64_FromChunk(t *testing.T) {
tests := []struct {
name string
chunk *sources.Chunk
want *sources.Chunk
}{
{
name: "only b64 chunk",
chunk: &sources.Chunk{
Data: []byte(`bG9uZ2VyLWVuY29kZWQtc2VjcmV0LXRlc3Q=`),
},
want: &sources.Chunk{
Data: []byte(`longer-encoded-secret-test`),
},
},
{
name: "mixed content",
chunk: &sources.Chunk{
Data: []byte(`token: bG9uZ2VyLWVuY29kZWQtc2VjcmV0LXRlc3Q=`),
},
want: &sources.Chunk{
Data: []byte(`token: longer-encoded-secret-test`),
},
},
{
name: "no chunk",
chunk: &sources.Chunk{
Data: []byte(``),
},
want: nil,
},
{
name: "env var (looks like all b64 decodable but has `=` in the middle)",
chunk: &sources.Chunk{
Data: []byte(`some-encoded-secret=dGVzdHNlY3JldA==`),
},
want: &sources.Chunk{
Data: []byte(`some-encoded-secret=testsecret`),
},
},
{
name: "has longer b64 inside",
chunk: &sources.Chunk{
Data: []byte(`some-encoded-secret="bG9uZ2VyLWVuY29kZWQtc2VjcmV0LXRlc3Q="`),
},
want: &sources.Chunk{
Data: []byte(`some-encoded-secret="longer-encoded-secret-test"`),
},
},
{
name: "many possible substrings",
chunk: &sources.Chunk{
Data: []byte(`Many substrings in this slack message could be base64 decoded
but only dGhpcyBlbmNhcHN1bGF0ZWQgc2VjcmV0 should be decoded.`),
},
want: &sources.Chunk{
Data: []byte(`Many substrings in this slack message could be base64 decoded
but only this encapsulated secret should be decoded.`),
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
d := &Base64{}
got := d.FromChunk(tt.chunk)
if tt.want != nil {
if got == nil {
t.Fatal("got nil, did not want nil")
}
if diff := pretty.Compare(string(got.Data), string(tt.want.Data)); diff != "" {
t.Errorf("Base64FromChunk() %s diff: (-got +want)\n%s", tt.name, diff)
}
} else {
if got != nil {
t.Error("Expected nil chunk")
}
}
})
}
}
func BenchmarkFromChunk(benchmark *testing.B) {
d := Base64{}
for name, data := range detectors.MustGetBenchmarkData() {
benchmark.Run(name, func(b *testing.B) {
for n := 0; n < b.N; n++ {
d.FromChunk(&sources.Chunk{Data: data})
}
})
}
}