| // Copyright 2022 The Wuffs Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package litonlylzma |
| |
| import ( |
| "bytes" |
| "os" |
| "testing" |
| ) |
| |
| const ( |
| oneThousand0x00s = "oneThousand0x00s" |
| oneThousand0xFFs = "oneThousand0xFFs" |
| ) |
| |
| func testRoundTrip(tt *testing.T, filename string) { |
| original := []byte(nil) |
| switch filename { |
| case oneThousand0x00s: |
| original = make([]byte, 1000) |
| case oneThousand0xFFs: |
| original = make([]byte, 1000) |
| for i := range original { |
| original[i] = 0xFF |
| } |
| default: |
| o, err := os.ReadFile("../../test/data/" + filename) |
| if err != nil { |
| tt.Fatalf("ReadFile: %v", err) |
| } |
| original = o |
| } |
| |
| fileFormats := [...]FileFormat{ |
| FileFormatLZMA, |
| FileFormatXz, |
| } |
| |
| for _, f := range fileFormats { |
| compressed, err := f.Encode(nil, original) |
| if err != nil { |
| tt.Fatalf("%v.Encode: %v", f, err) |
| } |
| recovered, _, err := f.Decode(nil, compressed) |
| if err != nil { |
| tt.Fatalf("%v.Decode: %v", f, err) |
| } |
| if !bytes.Equal(original, recovered) { |
| tt.Fatalf("%v: round trip produced different bytes", f) |
| } |
| } |
| } |
| |
| func TestRoundTrip0Bytes(tt *testing.T) { testRoundTrip(tt, "0.bytes") } |
| func TestRoundTripArchiveTar(tt *testing.T) { testRoundTrip(tt, "archive.tar") } |
| func TestRoundTripOneThousand0x00s(tt *testing.T) { testRoundTrip(tt, oneThousand0x00s) } |
| func TestRoundTripOneThousand0xFFs(tt *testing.T) { testRoundTrip(tt, oneThousand0xFFs) } |
| func TestRoundTripPiTxt(tt *testing.T) { testRoundTrip(tt, "pi.txt") } |
| func TestRoundTripRomeoTxt(tt *testing.T) { testRoundTrip(tt, "romeo.txt") } |