use require.IsType for type assertions in tests

api/auth/auth_test.go

@@ -69,8 +69,8 @@ func TestNewTokenHappyPath(t *testing.T) {
 	})
 	require.NoError(t, err, "couldn't parse new token")
 
-	claims, ok := token.Claims.(*endpointClaims)
-	require.True(t, ok, "expected auth token's claims to be type endpointClaims but is different type")
+	require.IsType(t, &endpointClaims{}, token.Claims)
+	claims := token.Claims.(*endpointClaims)
 	require.ElementsMatch(t, endpoints, claims.Endpoints, "token has wrong endpoint claims")
 
 	shouldExpireAt := jwt.NewNumericDate(now.Add(defaultTokenLifespan))

database/manager/manager_test.go

@@ -306,12 +306,9 @@ func TestMeterDBManager(t *testing.T) {
 	dbs := manager.GetDatabases()
 	require.Len(dbs, 3)
 
-	_, ok := dbs[0].Database.(*meterdb.Database)
-	require.True(ok)
-	_, ok = dbs[1].Database.(*meterdb.Database)
-	require.False(ok)
-	_, ok = dbs[2].Database.(*meterdb.Database)
-	require.False(ok)
+	require.IsType(&meterdb.Database{}, dbs[0].Database)
+	require.IsType(&memdb.Database{}, dbs[1].Database)
+	require.IsType(&memdb.Database{}, dbs[2].Database)
 
 	// Confirm that the error from a name conflict is handled correctly
 	_, err = m.NewMeterDBManager("", registry)
@@ -355,12 +352,9 @@ func TestCompleteMeterDBManager(t *testing.T) {
 	dbs := manager.GetDatabases()
 	require.Len(dbs, 3)
 
-	_, ok := dbs[0].Database.(*meterdb.Database)
-	require.True(ok)
-	_, ok = dbs[1].Database.(*meterdb.Database)
-	require.True(ok)
-	_, ok = dbs[2].Database.(*meterdb.Database)
-	require.True(ok)
+	require.IsType(&meterdb.Database{}, dbs[0].Database)
+	require.IsType(&meterdb.Database{}, dbs[1].Database)
+	require.IsType(&meterdb.Database{}, dbs[2].Database)
 
 	// Confirm that the error from a name conflict is handled correctly
 	_, err = m.NewCompleteMeterDBManager("", registry)

indexer/indexer_test.go

@@ -67,8 +67,8 @@ func TestNewIndexer(t *testing.T) {
 
 	idxrIntf, err := NewIndexer(config)
 	require.NoError(err)
-	idxr, ok := idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr := idxrIntf.(*indexer)
 	require.NotNil(idxr.codec)
 	require.NotNil(idxr.log)
 	require.NotNil(idxr.db)
@@ -118,8 +118,8 @@ func TestMarkHasRunAndShutdown(t *testing.T) {
 	config.DB = versiondb.New(baseDB)
 	idxrIntf, err = NewIndexer(config)
 	require.NoError(err)
-	idxr, ok := idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr := idxrIntf.(*indexer)
 	require.True(idxr.hasRunBefore)
 	require.NoError(idxr.Close())
 	shutdown.Wait()
@@ -150,8 +150,8 @@ func TestIndexer(t *testing.T) {
 	// Create indexer
 	idxrIntf, err := NewIndexer(config)
 	require.NoError(err)
-	idxr, ok := idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr := idxrIntf.(*indexer)
 	now := time.Now()
 	idxr.clock.Set(now)
 
@@ -232,10 +232,10 @@ func TestIndexer(t *testing.T) {
 	config.DB = versiondb.New(baseDB)
 	idxrIntf, err = NewIndexer(config)
 	require.NoError(err)
-	idxr, ok = idxrIntf.(*indexer)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr = idxrIntf.(*indexer)
 	now = time.Now()
 	idxr.clock.Set(now)
-	require.True(ok)
 	require.Len(idxr.blockIndices, 0)
 	require.Len(idxr.txIndices, 0)
 	require.Len(idxr.vtxIndices, 0)
@@ -389,8 +389,8 @@ func TestIndexer(t *testing.T) {
 	config.DB = versiondb.New(baseDB)
 	idxrIntf, err = NewIndexer(config)
 	require.NoError(err)
-	idxr, ok = idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr = idxrIntf.(*indexer)
 	idxr.RegisterChain("chain1", chain1Ctx, chainVM)
 	idxr.RegisterChain("chain2", chain2Ctx, dagVM)
 
@@ -427,8 +427,8 @@ func TestIncompleteIndex(t *testing.T) {
 	}
 	idxrIntf, err := NewIndexer(config)
 	require.NoError(err)
-	idxr, ok := idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr := idxrIntf.(*indexer)
 	require.False(idxr.indexingEnabled)
 
 	// Register a chain
@@ -454,8 +454,8 @@ func TestIncompleteIndex(t *testing.T) {
 	config.DB = versiondb.New(baseDB)
 	idxrIntf, err = NewIndexer(config)
 	require.NoError(err)
-	idxr, ok = idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr = idxrIntf.(*indexer)
 	require.True(idxr.indexingEnabled)
 
 	// Register the chain again. Should die due to incomplete index.
@@ -470,8 +470,8 @@ func TestIncompleteIndex(t *testing.T) {
 	config.DB = versiondb.New(baseDB)
 	idxrIntf, err = NewIndexer(config)
 	require.NoError(err)
-	idxr, ok = idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr = idxrIntf.(*indexer)
 	require.True(idxr.allowIncompleteIndex)
 
 	// Register the chain again. Should be OK
@@ -486,8 +486,7 @@ func TestIncompleteIndex(t *testing.T) {
 	config.DB = versiondb.New(baseDB)
 	idxrIntf, err = NewIndexer(config)
 	require.NoError(err)
-	_, ok = idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
 }
 
 // Ensure we only index chains in the primary network
@@ -513,8 +512,8 @@ func TestIgnoreNonDefaultChains(t *testing.T) {
 	// Create indexer
 	idxrIntf, err := NewIndexer(config)
 	require.NoError(err)
-	idxr, ok := idxrIntf.(*indexer)
-	require.True(ok)
+	require.IsType(&indexer{}, idxrIntf)
+	idxr := idxrIntf.(*indexer)
 
 	// Assert state is right
 	chain1Ctx := snow.DefaultConsensusContextTest()

message/inbound_msg_builder_test.go

@@ -65,8 +65,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(nodeID, msg.NodeID())
 			require.False(msg.Expiration().Before(start.Add(deadline)))
 			require.False(end.Add(deadline).Before(msg.Expiration()))
-			innerMsg, ok := msg.Message().(*p2p.GetStateSummaryFrontier)
-			require.True(ok)
+			require.IsType(&p2p.GetStateSummaryFrontier{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.GetStateSummaryFrontier)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 		},
@@ -87,8 +87,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(StateSummaryFrontierOp, msg.Op())
 			require.Equal(nodeID, msg.NodeID())
 			require.Equal(mockable.MaxTime, msg.Expiration())
-			innerMsg, ok := msg.Message().(*p2p.StateSummaryFrontier)
-			require.True(ok)
+			require.IsType(&p2p.StateSummaryFrontier{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.StateSummaryFrontier)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(summary, innerMsg.Summary)
@@ -114,8 +114,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(nodeID, msg.NodeID())
 			require.False(msg.Expiration().Before(start.Add(deadline)))
 			require.False(end.Add(deadline).Before(msg.Expiration()))
-			innerMsg, ok := msg.Message().(*p2p.GetAcceptedStateSummary)
-			require.True(ok)
+			require.IsType(&p2p.GetAcceptedStateSummary{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.GetAcceptedStateSummary)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(heights, innerMsg.Heights)
@@ -137,8 +137,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(AcceptedStateSummaryOp, msg.Op())
 			require.Equal(nodeID, msg.NodeID())
 			require.Equal(mockable.MaxTime, msg.Expiration())
-			innerMsg, ok := msg.Message().(*p2p.AcceptedStateSummary)
-			require.True(ok)
+			require.IsType(&p2p.AcceptedStateSummary{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.AcceptedStateSummary)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			summaryIDsBytes := make([][]byte, len(summaryIDs))
@@ -169,8 +169,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(nodeID, msg.NodeID())
 			require.False(msg.Expiration().Before(start.Add(deadline)))
 			require.False(end.Add(deadline).Before(msg.Expiration()))
-			innerMsg, ok := msg.Message().(*p2p.GetAcceptedFrontier)
-			require.True(ok)
+			require.IsType(&p2p.GetAcceptedFrontier{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.GetAcceptedFrontier)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(engineType, innerMsg.EngineType)
@@ -192,8 +192,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(AcceptedFrontierOp, msg.Op())
 			require.Equal(nodeID, msg.NodeID())
 			require.Equal(mockable.MaxTime, msg.Expiration())
-			innerMsg, ok := msg.Message().(*p2p.AcceptedFrontier)
-			require.True(ok)
+			require.IsType(&p2p.AcceptedFrontier{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.AcceptedFrontier)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			containerIDsBytes := make([][]byte, len(containerIDs))
@@ -225,8 +225,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(nodeID, msg.NodeID())
 			require.False(msg.Expiration().Before(start.Add(deadline)))
 			require.False(end.Add(deadline).Before(msg.Expiration()))
-			innerMsg, ok := msg.Message().(*p2p.GetAccepted)
-			require.True(ok)
+			require.IsType(&p2p.GetAccepted{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.GetAccepted)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(engineType, innerMsg.EngineType)
@@ -248,8 +248,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(AcceptedOp, msg.Op())
 			require.Equal(nodeID, msg.NodeID())
 			require.Equal(mockable.MaxTime, msg.Expiration())
-			innerMsg, ok := msg.Message().(*p2p.Accepted)
-			require.True(ok)
+			require.IsType(&p2p.Accepted{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.Accepted)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			containerIDsBytes := make([][]byte, len(containerIDs))
@@ -281,8 +281,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(nodeID, msg.NodeID())
 			require.False(msg.Expiration().Before(start.Add(deadline)))
 			require.False(end.Add(deadline).Before(msg.Expiration()))
-			innerMsg, ok := msg.Message().(*p2p.PushQuery)
-			require.True(ok)
+			require.IsType(&p2p.PushQuery{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.PushQuery)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(container, innerMsg.Container)
@@ -310,8 +310,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(nodeID, msg.NodeID())
 			require.False(msg.Expiration().Before(start.Add(deadline)))
 			require.False(end.Add(deadline).Before(msg.Expiration()))
-			innerMsg, ok := msg.Message().(*p2p.PullQuery)
-			require.True(ok)
+			require.IsType(&p2p.PullQuery{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.PullQuery)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(containerIDs[0][:], innerMsg.ContainerId)
@@ -335,8 +335,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(ChitsOp, msg.Op())
 			require.Equal(nodeID, msg.NodeID())
 			require.Equal(mockable.MaxTime, msg.Expiration())
-			innerMsg, ok := msg.Message().(*p2p.Chits)
-			require.True(ok)
+			require.IsType(&p2p.Chits{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.Chits)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			containerIDsBytes := make([][]byte, len(containerIDs))
@@ -373,8 +373,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(nodeID, msg.NodeID())
 			require.False(msg.Expiration().Before(start.Add(deadline)))
 			require.False(end.Add(deadline).Before(msg.Expiration()))
-			innerMsg, ok := msg.Message().(*p2p.AppRequest)
-			require.True(ok)
+			require.IsType(&p2p.AppRequest{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.AppRequest)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(appBytes, innerMsg.AppBytes)
@@ -396,8 +396,8 @@ func TestInboundMsgBuilder(t *testing.T) {
 			require.Equal(AppResponseOp, msg.Op())
 			require.Equal(nodeID, msg.NodeID())
 			require.Equal(mockable.MaxTime, msg.Expiration())
-			innerMsg, ok := msg.Message().(*p2p.AppResponse)
-			require.True(ok)
+			require.IsType(&p2p.AppResponse{}, msg.Message())
+			innerMsg := msg.Message().(*p2p.AppResponse)
 			require.Equal(chainID[:], innerMsg.ChainId)
 			require.Equal(requestID, innerMsg.RequestId)
 			require.Equal(appBytes, innerMsg.AppBytes)

message/messages_test.go

@@ -872,7 +872,7 @@ func TestNilInboundMessage(t *testing.T) {
 	parsedMsg, err := mb.parseInbound(msgBytes, ids.EmptyNodeID, func() {})
 	require.NoError(err)
 
-	pingMsg, ok := parsedMsg.message.(*p2p.Ping)
-	require.True(ok)
+	require.IsType(&p2p.Ping{}, parsedMsg.message)
+	pingMsg := parsedMsg.message.(*p2p.Ping)
 	require.NotNil(pingMsg)
 }

network/throttling/bandwidth_throttler_test.go

@@ -25,8 +25,8 @@ func TestBandwidthThrottler(t *testing.T) {
 	}
 	throttlerIntf, err := newBandwidthThrottler(logging.NoLog{}, "", prometheus.NewRegistry(), config)
 	require.NoError(err)
-	throttler, ok := throttlerIntf.(*bandwidthThrottlerImpl)
-	require.True(ok)
+	require.IsType(&bandwidthThrottlerImpl{}, throttlerIntf)
+	throttler := throttlerIntf.(*bandwidthThrottlerImpl)
 	require.NotNil(throttler.log)
 	require.NotNil(throttler.limiters)
 	require.Equal(config.RefillRate, throttler.RefillRate)

network/throttling/inbound_resource_throttler_test.go

@@ -40,8 +40,8 @@ func TestNewSystemThrottler(t *testing.T) {
 	targeter := tracker.NewMockTargeter(ctrl)
 	throttlerIntf, err := NewSystemThrottler("", reg, config, cpuTracker, targeter)
 	require.NoError(err)
-	throttler, ok := throttlerIntf.(*systemThrottler)
-	require.True(ok)
+	require.IsType(&systemThrottler{}, throttlerIntf)
+	throttler := throttlerIntf.(*systemThrottler)
 	require.Equal(clock, config.Clock)
 	require.Equal(time.Second, config.MaxRecheckDelay)
 	require.Equal(cpuTracker, throttler.tracker)

snow/consensus/snowball/unary_snowball_test.go

@@ -5,6 +5,8 @@ package snowball
 
 import (
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 func UnarySnowballStateTest(t *testing.T, sb *unarySnowball, expectedNumSuccessfulPolls, expectedConfidence int, expectedFinalized bool) {
@@ -18,6 +20,8 @@ func UnarySnowballStateTest(t *testing.T, sb *unarySnowball, expectedNumSuccessf
 }
 
 func TestUnarySnowball(t *testing.T) {
+	require := require.New(t)
+
 	beta := 2
 
 	sb := &unarySnowball{}
@@ -33,10 +37,8 @@ func TestUnarySnowball(t *testing.T) {
 	UnarySnowballStateTest(t, sb, 2, 1, false)
 
 	sbCloneIntf := sb.Clone()
-	sbClone, ok := sbCloneIntf.(*unarySnowball)
-	if !ok {
-		t.Fatalf("Unexpected clone type")
-	}
+	require.IsType(&unarySnowball{}, sbCloneIntf)
+	sbClone := sbCloneIntf.(*unarySnowball)
 
 	UnarySnowballStateTest(t, sbClone, 2, 1, false)
 

snow/consensus/snowball/unary_snowflake_test.go

@@ -5,6 +5,8 @@ package snowball
 
 import (
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 func UnarySnowflakeStateTest(t *testing.T, sf *unarySnowflake, expectedConfidence int, expectedFinalized bool) {
@@ -16,6 +18,8 @@ func UnarySnowflakeStateTest(t *testing.T, sf *unarySnowflake, expectedConfidenc
 }
 
 func TestUnarySnowflake(t *testing.T) {
+	require := require.New(t)
+
 	beta := 2
 
 	sf := &unarySnowflake{}
@@ -31,10 +35,8 @@ func TestUnarySnowflake(t *testing.T) {
 	UnarySnowflakeStateTest(t, sf, 1, false)
 
 	sfCloneIntf := sf.Clone()
-	sfClone, ok := sfCloneIntf.(*unarySnowflake)
-	if !ok {
-		t.Fatalf("Unexpected clone type")
-	}
+	require.IsType(&unarySnowflake{}, sfCloneIntf)
+	sfClone := sfCloneIntf.(*unarySnowflake)
 
 	UnarySnowflakeStateTest(t, sfClone, 1, false)