testdata: convert last chunk tests to testkit

testdata/stream_last_chunk_empty.go

@@ -0,0 +1,32 @@
+// Copyright 2022 The age Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build ignore
+
+package main
+
+import (
+	"bytes"
+	"encoding/hex"
+
+	"filippo.io/age/internal/testkit"
+)
+
+func main() {
+	f := testkit.NewTestFile()
+	// Reuse the file key and nonce from a previous test vector to avoid
+	// bloating the git history with two versions that can't be compressed.
+	fileKey, _ := hex.DecodeString("7aa5bdac0e6afeed3dd0a7eccb42af44")
+	f.FileKey(fileKey)
+	f.VersionLine("v1")
+	f.X25519(testkit.TestX25519Identity)
+	f.HMAC()
+	nonce, _ := hex.DecodeString("c82f71eb82029b77136399e485e879f4")
+	f.Nonce(nonce)
+	f.PayloadChunk(bytes.Repeat([]byte{0}, 64*1024))
+	f.PayloadChunkFinal([]byte{})
+	f.Comment("final STREAM chunk can't be empty unless whole payload is empty")
+	f.ExpectPayloadFailure()
+	f.Generate()
+}

testdata/stream_last_chunk_full.go

@@ -0,0 +1,29 @@
+// Copyright 2022 The age Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build ignore
+
+package main
+
+import (
+	"bytes"
+	"encoding/hex"
+
+	"filippo.io/age/internal/testkit"
+)
+
+func main() {
+	f := testkit.NewTestFile()
+	// Reuse the file key and nonce from a previous test vector to avoid
+	// bloating the git history with two versions that can't be compressed.
+	fileKey, _ := hex.DecodeString("5085919e0d59b19d6cbd00330f03861c")
+	f.FileKey(fileKey)
+	f.VersionLine("v1")
+	f.X25519(testkit.TestX25519Identity)
+	f.HMAC()
+	nonce, _ := hex.DecodeString("32521791a6f22e11637fb69ead3f2d5f")
+	f.Nonce(nonce)
+	f.PayloadChunkFinal(bytes.Repeat([]byte{0}, 64*1024))
+	f.Generate()
+}