From 09277325ef4f7b612504192306005ca5075b9721 Mon Sep 17 00:00:00 2001
From: Ian Norden <iannordenn@gmail.com>
Date: Wed, 8 Jul 2020 11:34:56 -0500
Subject: [PATCH] mock blockservice interfaces for tests

---
 mock_blockservice.go | 144 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 mock_blockservice.go

diff --git a/mock_blockservice.go b/mock_blockservice.go
new file mode 100644
index 0000000..fe25177
--- /dev/null
+++ b/mock_blockservice.go
@@ -0,0 +1,144 @@
+// VulcanizeDB
+// Copyright © 2020 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package ipfsethdb
+
+import (
+	"context"
+	"errors"
+
+	"github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-blockservice"
+	"github.com/ipfs/go-cid"
+	"github.com/ipfs/go-ipfs-blockstore"
+	"github.com/ipfs/go-ipfs-exchange-interface"
+)
+
+var (
+	blockNotFoundErr = errors.New("block not found")
+)
+
+type MockBlockservice struct {
+	blockStore *MockBlockstore
+	err        error
+}
+
+func NewMockBlockservice() blockservice.BlockService {
+	return &MockBlockservice{
+		blockStore: &MockBlockstore{
+			blocks: make(map[string]blocks.Block),
+		},
+	}
+}
+
+func (mbs *MockBlockservice) Blockstore() blockstore.Blockstore {
+	return mbs.blockStore
+}
+
+func (mbs *MockBlockservice) Exchange() exchange.Interface {
+	panic("Exchange: implement me")
+}
+
+func (mbs *MockBlockservice) AddBlock(b blocks.Block) error {
+	return mbs.blockStore.Put(b)
+}
+
+func (mbs *MockBlockservice) AddBlocks(bs []blocks.Block) error {
+	return mbs.blockStore.PutMany(bs)
+}
+
+func (mbs *MockBlockservice) DeleteBlock(c cid.Cid) error {
+	return mbs.blockStore.DeleteBlock(c)
+}
+
+func (mbs *MockBlockservice) GetBlock(ctx context.Context, c cid.Cid) (blocks.Block, error) {
+	return mbs.blockStore.Get(c)
+}
+
+func (mbs *MockBlockservice) GetBlocks(ctx context.Context, cs []cid.Cid) <-chan blocks.Block {
+	blockChan := make(chan blocks.Block)
+	go func() {
+		for _, c := range cs {
+			if b, err := mbs.blockStore.Get(c); err == nil {
+				blockChan <- b
+			}
+		}
+	}()
+	return blockChan
+}
+
+func (mbs *MockBlockservice) Close() error {
+	return mbs.err
+}
+
+func (mbs *MockBlockservice) SetError(err error) {
+	mbs.err = err
+}
+
+type MockBlockstore struct {
+	blocks map[string]blocks.Block
+	err    error
+}
+
+func (mbs *MockBlockstore) DeleteBlock(c cid.Cid) error {
+	delete(mbs.blocks, c.String())
+	return mbs.err
+}
+
+func (mbs *MockBlockstore) Has(c cid.Cid) (bool, error) {
+	_, ok := mbs.blocks[c.String()]
+	return ok, mbs.err
+}
+
+func (mbs *MockBlockstore) Get(c cid.Cid) (blocks.Block, error) {
+	obj, ok := mbs.blocks[c.String()]
+	if !ok {
+		return nil, blockNotFoundErr
+	}
+	return obj, mbs.err
+}
+
+func (mbs *MockBlockstore) GetSize(c cid.Cid) (int, error) {
+	obj, ok := mbs.blocks[c.String()]
+	if !ok {
+		return 0, blockNotFoundErr
+	}
+	return len(obj.RawData()), mbs.err
+}
+
+func (mbs *MockBlockstore) Put(b blocks.Block) error {
+	mbs.blocks[b.Cid().String()] = b
+	return mbs.err
+}
+
+func (mbs *MockBlockstore) PutMany(bs []blocks.Block) error {
+	for _, b := range bs {
+		mbs.blocks[b.Cid().String()] = b
+	}
+	return mbs.err
+}
+
+func (mbs *MockBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+	panic("AllKeysChan: implement me")
+}
+
+func (mbs *MockBlockstore) HashOnRead(enabled bool) {
+	panic("HasOnRead: implement me")
+}
+
+func (mbs *MockBlockstore) SetError(err error) {
+	mbs.err = err
+}