package cli import ( "bytes" "context" "encoding/json" "fmt" "regexp" "testing" "github.com/filecoin-project/lotus/api" "github.com/filecoin-project/lotus/api/mocks" types "github.com/filecoin-project/lotus/chain/types" "github.com/filecoin-project/lotus/chain/types/mock" "github.com/golang/mock/gomock" cid "github.com/ipfs/go-cid" "github.com/stretchr/testify/assert" ucli "github.com/urfave/cli/v2" ) // newMockAppWithFullAPI returns a gomock-ed CLI app used for unit tests // see cli/util/api.go:GetFullNodeAPI for mock API injection func newMockAppWithFullAPI(t *testing.T, cmd *ucli.Command) (*ucli.App, *mocks.MockFullNode, *bytes.Buffer, func()) { app := ucli.NewApp() app.Commands = ucli.Commands{cmd} app.Setup() // create and inject the mock API into app Metadata ctrl := gomock.NewController(t) mockFullNode := mocks.NewMockFullNode(ctrl) var fullNode api.FullNode = mockFullNode app.Metadata["test-full-api"] = fullNode // this will only work if the implementation uses the app.Writer, // if it uses fmt.*, it has to be refactored buf := &bytes.Buffer{} app.Writer = buf return app, mockFullNode, buf, ctrl.Finish } func TestChainHead(t *testing.T) { app, mockApi, buf, done := newMockAppWithFullAPI(t, WithCategory("chain", ChainHeadCmd)) defer done() ctx, cancel := context.WithCancel(context.Background()) defer cancel() ts := mock.TipSet(mock.MkBlock(nil, 0, 0)) gomock.InOrder( mockApi.EXPECT().ChainHead(ctx).Return(ts, nil), ) err := app.Run([]string{"chain", "head"}) assert.NoError(t, err) assert.Regexp(t, regexp.MustCompile(ts.Cids()[0].String()), buf.String()) } // TestGetBlock checks if "chain getblock" returns the block information in the expected format func TestGetBlock(t *testing.T) { app, mockApi, buf, done := newMockAppWithFullAPI(t, WithCategory("chain", ChainGetBlock)) defer done() ctx, cancel := context.WithCancel(context.Background()) defer cancel() block := mock.MkBlock(nil, 0, 0) blockMsgs := api.BlockMessages{} gomock.InOrder( mockApi.EXPECT().ChainGetBlock(ctx, block.Cid()).Return(block, nil), mockApi.EXPECT().ChainGetBlockMessages(ctx, block.Cid()).Return(&blockMsgs, nil), mockApi.EXPECT().ChainGetParentMessages(ctx, block.Cid()).Return([]api.Message{}, nil), mockApi.EXPECT().ChainGetParentReceipts(ctx, block.Cid()).Return([]*types.MessageReceipt{}, nil), ) err := app.Run([]string{"chain", "getblock", block.Cid().String()}) assert.NoError(t, err) // expected output format out := struct { types.BlockHeader BlsMessages []*types.Message SecpkMessages []*types.SignedMessage ParentReceipts []*types.MessageReceipt ParentMessages []cid.Cid }{} err = json.Unmarshal(buf.Bytes(), &out) assert.NoError(t, err) assert.True(t, block.Cid().Equals(out.Cid())) } // TestChainReadObj checks if "chain read-obj" prints the referenced IPLD node as hex, if exists func TestReadOjb(t *testing.T) { app, mockApi, buf, done := newMockAppWithFullAPI(t, WithCategory("chain", ChainReadObjCmd)) defer done() ctx, cancel := context.WithCancel(context.Background()) defer cancel() block := mock.MkBlock(nil, 0, 0) obj := new(bytes.Buffer) err := block.MarshalCBOR(obj) assert.NoError(t, err) gomock.InOrder( mockApi.EXPECT().ChainReadObj(ctx, block.Cid()).Return(obj.Bytes(), nil), ) err = app.Run([]string{"chain", "read-obj", block.Cid().String()}) assert.NoError(t, err) assert.Equal(t, buf.String(), fmt.Sprintf("%x\n", obj.Bytes())) }