Merge branch 'design' of github.com:system-transparency/stfe into design

1 files changed, 114 insertions, 0 deletions

diff --git a/types/trunnel_test.go b/types/trunnel_test.go
new file mode 100644
index 0000000..0fa7656
--- /dev/null
+++ b/types/trunnel_test.go
@@ -0,0 +1,114 @@
+package types
+
+import (
+	"bytes"
+	"reflect"
+	"testing"
+)
+
+var (
+	testBuffer32 = [32]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
+	testBuffer64 = [64]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63}
+)
+
+func TestMarshalMessage(t *testing.T) {
+	description := "valid: shard hint 72623859790382856, checksum 0x00,0x01,..."
+	message := &Message{
+		ShardHint: 72623859790382856,
+		Checksum:  testBuffer32,
+	}
+	want := bytes.Join([][]byte{
+		[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08},
+		testBuffer32[:],
+	}, nil)
+	if got := message.Marshal(); !bytes.Equal(got, want) {
+		t.Errorf("got message\n\t%v\nbut wanted\n\t%v\nin test %q\n", got, want, description)
+	}
+}
+
+func TestMarshalLeaf(t *testing.T) {
+	description := "valid: shard hint 72623859790382856, buffers 0x00,0x01,..."
+	leaf := &Leaf{
+		Message: Message{
+			ShardHint: 72623859790382856,
+			Checksum:  testBuffer32,
+		},
+		SigIdent: SigIdent{
+			Signature: testBuffer64,
+			KeyHash:   testBuffer32,
+		},
+	}
+	want := bytes.Join([][]byte{
+		[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08},
+		testBuffer32[:], testBuffer64[:], testBuffer32[:],
+	}, nil)
+	if got := leaf.Marshal(); !bytes.Equal(got, want) {
+		t.Errorf("got leaf\n\t%v\nbut wanted\n\t%v\nin test %q\n", got, want, description)
+	}
+}
+
+func TestMarshalTreeHead(t *testing.T) {
+	description := "valid: timestamp 16909060, tree size 72623859790382856, root hash 0x00,0x01,..."
+	th := &TreeHead{
+		Timestamp: 16909060,
+		TreeSize:  72623859790382856,
+		RootHash:  testBuffer32,
+	}
+	want := bytes.Join([][]byte{
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04},
+		[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08},
+		testBuffer32[:],
+	}, nil)
+	if got := th.Marshal(); !bytes.Equal(got, want) {
+		t.Errorf("got tree head\n\t%v\nbut wanted\n\t%v\nin test %q\n", got, want, description)
+	}
+}
+
+func TestUnmarshalLeaf(t *testing.T) {
+	for _, table := range []struct {
+		description string
+		serialized  []byte
+		wantErr     bool
+		want        *Leaf
+	}{
+		{
+			description: "invalid: not enough bytes",
+			serialized:  make([]byte, LeafSize-1),
+			wantErr:     true,
+		},
+		{
+			description: "invalid: too many bytes",
+			serialized:  make([]byte, LeafSize+1),
+			wantErr:     true,
+		},
+		{
+			description: "valid: shard hint 72623859790382856, buffers 0x00,0x01,...",
+			serialized: bytes.Join([][]byte{
+				[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08},
+				testBuffer32[:], testBuffer64[:], testBuffer32[:],
+			}, nil),
+			want: &Leaf{
+				Message: Message{
+					ShardHint: 72623859790382856,
+					Checksum:  testBuffer32,
+				},
+				SigIdent: SigIdent{
+					Signature: testBuffer64,
+					KeyHash:   testBuffer32,
+				},
+			},
+		},
+	} {
+		var leaf Leaf
+		err := leaf.Unmarshal(table.serialized)
+		if got, want := err != nil, table.wantErr; got != want {
+			t.Errorf("got error %v but wanted %v in test %q: %v", got, want, table.description, err)
+		}
+		if err != nil {
+			continue // nothing more to check on error
+		}
+		if got, want := &leaf, table.want; !reflect.DeepEqual(got, want) {
+			t.Errorf("got leaf\n\t%v\nbut wanted\n\t%v\nin test %q\n", got, want, table.description)
+		}
+	}
+}