test/suite.go (4)

25-25: Consider testing context behavior explicitly

While context.TODO() works for basic testing, consider adding test cases that verify context cancellation and timeout behavior. This would ensure the context implementation actually provides the intended request lifecycle management.

Example test cases to consider:

func (s *ExecutorSuite) TestInitChainWithTimeout() {
    ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
    defer cancel()
    // Test timeout scenario
    _, _, err := s.Exec.InitChain(ctx, time.Now().UTC(), 1, "test-chain")
    s.Require().Error(err)
}

func (s *ExecutorSuite) TestInitChainWithCancellation() {
    ctx, cancel := context.WithCancel(context.Background())
    cancel() // Cancel immediately
    // Test cancellation scenario
    _, _, err := s.Exec.InitChain(ctx, time.Now().UTC(), 1, "test-chain")
    s.Require().Error(err)
}

---

33-35: Enhance test coverage for GetTxs

The test could be improved in two ways:

1. Test context behavior (cancellation/timeout) as suggested for InitChain
2. Add more specific assertions about the returned transactions

Consider adding assertions like:

func (s *ExecutorSuite) TestGetTxs() {
    txs, err := s.Exec.GetTxs(context.Background())
    s.Require().NoError(err)
    s.NotNil(txs)
    // Add more specific assertions
    s.IsType([]types.Tx{}, txs, "should return correct type")
    if len(txs) > 0 {
        s.IsType([]byte{}, txs[0], "each tx should be a byte slice")
    }
}

---

45-48: Consider using table-driven tests for ExecuteTxs

While the basic test case is good, ExecuteTxs is a complex method that would benefit from testing multiple scenarios using table-driven tests.

Example implementation:

func (s *ExecutorSuite) TestExecuteTxs() {
    tests := []struct {
        name          string
        txs          []types.Tx
        blockHeight  uint64
        prevStateRoot types.Hash
        expectError   bool
    }{
        {
            name: "valid transactions",
            txs: []types.Tx{[]byte("tx1"), []byte("tx2")},
            blockHeight: 1,
            prevStateRoot: types.Hash{1, 2, 3},
            expectError: false,
        },
        {
            name: "empty transaction list",
            txs: []types.Tx{},
            blockHeight: 1,
            prevStateRoot: types.Hash{1, 2, 3},
            expectError: false,
        },
        // Add more test cases
    }

    for _, tt := range tests {
        s.Run(tt.name, func() {
            stateRoot, maxBytes, err := s.Exec.ExecuteTxs(
                context.Background(),
                tt.txs,
                tt.blockHeight,
                time.Now().UTC(),
                tt.prevStateRoot,
            )
            if tt.expectError {
                s.Require().Error(err)
                return
            }
            s.Require().NoError(err)
            s.NotEqual(types.Hash{}, stateRoot)
            s.Greater(maxBytes, uint64(0))
        })
    }
}

---

53-54: Improve SetFinal test coverage

The current test only verifies basic functionality with height 1. Consider testing:

1. Context behavior (cancellation/timeout)
2. Different height values
3. Error cases

Example implementation:

func (s *ExecutorSuite) TestSetFinal() {
    tests := []struct {
        name        string
        height      uint64
        expectError bool
    }{
        {"valid height", 1, false},
        {"zero height", 0, true},
        {"large height", 1000000, false},
    }

    for _, tt := range tests {
        s.Run(tt.name, func() {
            err := s.Exec.SetFinal(context.Background(), tt.height)
            if tt.expectError {
                s.Require().Error(err)
                return
            }
            s.Require().NoError(err)
        })
    }
}

test/dummy.go (2)

28-30: Consider documenting context usage in comments

While this is a dummy implementation, it would be helpful to document that the context parameter is intentionally unused.

-// InitChain initializes the chain state with the given genesis time, initial height, and chain ID.
-// It returns the state root hash, the maximum byte size, and an error if the initialization fails.
+// InitChain initializes the chain state with the given genesis time, initial height, and chain ID.
+// The context parameter is currently unused in this dummy implementation.
+// It returns the state root hash, the maximum byte size, and an error if the initialization fails.

---

33-33: Consider naming the context parameter for consistency

Other methods use named context parameter (ctx). Consider using the same convention here.

-func (e *DummyExecutor) GetTxs(context.Context) ([]types.Tx, error) {
+func (e *DummyExecutor) GetTxs(ctx context.Context) ([]types.Tx, error) {

proxy/grpc/proxy_test.go (1)

Line range hint 68-72: Consider improving the retry mechanism

The current retry mechanism uses hard-coded values and lacks proper error handling. Consider using exponential backoff with proper logging.

+	backoff := 100 * time.Millisecond
 	for i := 0; i < 10; i++ {
-		if _, err := client.GetTxs(context.TODO()); err == nil {
+		if _, err := client.GetTxs(ctx); err == nil {
 			break
 		}
-		time.Sleep(100 * time.Millisecond)
+		if i < 9 { // Don't log on last attempt
+			s.T().Logf("Failed to connect on attempt %d: %v", i+1, err)
+			time.Sleep(backoff)
+			backoff *= 2 // Exponential backoff
+		}
 	}

proxy/grpc/client_server_test.go (1)

70-73: Consider using context.Background() instead of context.TODO().

While both work, context.Background() is more appropriate here as it explicitly indicates that we're starting a new context hierarchy for testing. context.TODO() is typically used as a placeholder when it's unclear which context to use, which isn't the case in tests.

-		stateRoot, maxBytes, err := client.InitChain(context.TODO(), genesisTime, initialHeight, chainID)
+		stateRoot, maxBytes, err := client.InitChain(context.Background(), genesisTime, initialHeight, chainID)

proxy/grpc/server.go (2)

Line range hint 90-94: Propagate the incoming context for state management operations

ExecuteTxs performs critical state modifications. Proper context propagation is essential for managing the lifecycle of these operations, especially for timeout and cancellation handling during state updates.

Apply this change:

	updatedStateRoot, maxBytes, err := s.exec.ExecuteTxs(
-		context.TODO(),
+		ctx,
		txs,
		req.BlockHeight,
		time.Unix(req.Timestamp, 0),
		prevStateRoot,

---

Line range hint 1-114: Implement consistent context handling across the server

While the server correctly uses context for authentication (validateAuth), it systematically fails to propagate contexts to executor calls. Consider implementing the following improvements:

1. Add context timeout middleware for all gRPC methods
2. Consider adding context logging/tracing for better observability
3. Document context handling expectations in method comments

Example middleware implementation:

func (s *Server) withTimeout(ctx context.Context) (context.Context, context.CancelFunc) {
    return context.WithTimeout(ctx, s.config.RequestTimeout)
}

Would you like me to provide a complete implementation of these suggestions?

proxy/grpc/client.go (2)

Line range hint 54-65: Consider adding timeout configuration for InitChain operation

While the context parameter has been correctly added and propagated, the removal of internal timeout handling could lead to long-running operations. Consider adding a default timeout configuration option in the Client config.

type Config struct {
+    InitChainTimeout time.Duration
     // existing fields...
}

func DefaultConfig() *Config {
    return &Config{
+        InitChainTimeout: 30 * time.Second,
         // existing defaults...
    }
}

---

Line range hint 54-114: Consider adding context handling middleware

To ensure consistent context handling across all methods, consider implementing middleware that:

• Validates context presence and timeout configuration
• Adds logging/tracing for context cancellations
• Implements consistent retry policies
• Provides metrics for context-related failures

This would centralize the context handling logic and make it easier to maintain.

Would you like me to provide an example implementation of the context handling middleware?

proxy/jsonrpc/client_server_test.go (5)

52-52: Consider using a proper context instead of context.TODO()

While the changes correctly implement the context parameter, using context.TODO() in tests might not be the best practice. Consider using context.Background() or a context with timeout for more realistic testing scenarios.

-		stateRoot, maxBytes, err := client.InitChain(context.TODO(), genesisTime, initialHeight, chainID)
+		ctx, cancel := context.WithTimeout(context.Background(), config.DefaultTimeout)
+		defer cancel()
+		stateRoot, maxBytes, err := client.InitChain(ctx, genesisTime, initialHeight, chainID)

Also applies to: 55-55

---

65-65: Maintain consistent context handling across test cases

Similar to the InitChain test, consider using a proper context with timeout instead of context.TODO().

-		txs, err := client.GetTxs(context.TODO())
+		ctx, cancel := context.WithTimeout(context.Background(), config.DefaultTimeout)
+		defer cancel()
+		txs, err := client.GetTxs(ctx)

Also applies to: 67-67

---

90-90: Maintain consistent context handling in ExecuteTxs test

The context parameter is correctly added, but consider using a proper context with timeout instead of context.TODO().

-		updatedStateRoot, maxBytes, err := client.ExecuteTxs(context.TODO(), txs, blockHeight, timestamp, prevStateRoot)
+		ctx, cancel := context.WithTimeout(context.Background(), config.DefaultTimeout)
+		defer cancel()
+		updatedStateRoot, maxBytes, err := client.ExecuteTxs(ctx, txs, blockHeight, timestamp, prevStateRoot)

Also applies to: 93-93

---

103-103: Consider refactoring context creation into a test helper

The context parameter is correctly added, but there's repeated context creation pattern across all tests. Consider creating a test helper function for consistent context handling.

+	// Add at the beginning of the test file
+	func createTestContext(t *testing.T, timeout time.Duration) (context.Context, context.CancelFunc) {
+		return context.WithTimeout(context.Background(), timeout)
+	}

-		err := client.SetFinal(context.TODO(), blockHeight)
+		ctx, cancel := createTestContext(t, config.DefaultTimeout)
+		defer cancel()
+		err := client.SetFinal(ctx, blockHeight)

Also applies to: 105-105

---

Context handling needs improvement in test coverage

The test suite currently lacks comprehensive context handling tests. While timeouts are configured in the client/server setup, there are no explicit test cases for:

• Context timeout scenarios
• Context cancellation behavior
• Error propagation when context deadlines are exceeded
• Edge cases around context values and propagation

Key locations requiring attention:

• proxy/jsonrpc/client_server_test.go: Add timeout and cancellation test cases for each RPC method
• proxy/jsonrpc/proxy_test.go: Enhance context deadline tests beyond basic configuration
• Consider adding similar context tests as implemented in proxy/grpc/proxy_test.go

🔗 Analysis chain

Line range hint 1-109: Overall context implementation looks good with room for improvement

The changes successfully implement the context parameter across all executor methods, aligning well with the PR objectives. However, there are opportunities to improve the test suite:

1. Consider implementing context timeout tests to verify proper timeout handling
2. Add test cases for context cancellation scenarios
3. Consider testing context propagation to ensure the context is properly passed through the execution chain

Let's verify if there are any timeout or cancellation tests in the codebase:

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for timeout-related tests
echo "Searching for timeout-related tests..."
rg -l "WithTimeout|context.*cancel|Timeout" --type go --glob "*_test.go"

# Search for context cancellation tests
echo "Searching for context cancellation tests..."
rg -l "cancel\(\)|Done\(\)" --type go --glob "*_test.go"

Length of output: 464

---

Script:

#!/bin/bash
# Let's examine the actual timeout and cancellation test implementations
echo "Checking timeout tests in jsonrpc client_server_test.go:"
rg "WithTimeout|context.*cancel|Timeout" -B 2 -A 5 proxy/jsonrpc/client_server_test.go

echo -e "\nChecking timeout tests in jsonrpc proxy_test.go:"
rg "WithTimeout|context.*cancel|Timeout" -B 2 -A 5 proxy/jsonrpc/proxy_test.go

echo -e "\nChecking context cancellation tests in grpc proxy_test.go:"
rg "cancel\(\)|Done\(\)" -B 2 -A 5 proxy/grpc/proxy_test.go

Length of output: 1276

proxy/jsonrpc/server.go (3)

Line range hint 33-83: Update method signatures to include context parameter.

The PR objective is to add context parameters to all methods, but the handler methods don't accept context. Update the signatures to accept context from ServeHTTP.

Example refactor:

- func (s *Server) handleInitChain(params json.RawMessage) (interface{}, *jsonRPCError) {
+ func (s *Server) handleInitChain(ctx context.Context, params json.RawMessage) (interface{}, *jsonRPCError) {

  // In ServeHTTP:
  switch request.Method {
  case "init_chain":
-   result, err = s.handleInitChain(request.Params)
+   result, err = s.handleInitChain(r.Context(), request.Params)

---

Line range hint 194-195: Implement proper error handling with context.

The TODO comment about error handling becomes more critical with context propagation. Consider implementing:

1. Context deadline exceeded errors
2. Request cancellation handling
3. Proper error logging with request context

Would you like me to propose a comprehensive error handling implementation that integrates with the context changes?

---

Context error handling needs to be implemented

The codebase currently:

• Uses context.TODO() in all RPC handler methods, which means no timeout or cancellation handling
• Has no mapping between context errors and JSON-RPC error codes
• Only maps generic errors to ErrCodeInternal

Required changes:

• Replace context.TODO() with request context from HTTP handler
• Add proper error mapping for context.Canceled and context.DeadlineExceeded
• Consider adding a new error code for context-related failures

🔗 Analysis chain

Line range hint 33-83: Verify context error handling in JSON-RPC responses.

Ensure that context cancellation and timeout errors are properly mapped to appropriate JSON-RPC error codes.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for error handling patterns in the codebase
echo "Searching for JSON-RPC error definitions..."
rg "type.*jsonRPCError" -A 5

echo "Searching for context error handling patterns..."
rg "context\.(Canceled|DeadlineExceeded)"

Length of output: 523

---

Script:

#!/bin/bash
# Let's check the error definitions and their usage
echo "Checking error constants and their values..."
rg "var|const.*Err" proxy/jsonrpc/errors.go -A 3

echo "Checking where these errors are used..."
rg "writeError\(.*Err.*\)" proxy/jsonrpc/

echo "Checking context usage in server methods..."
ast-grep --pattern 'func \(s \*Server\) handle.*\(.*context\.Context.*\) \{'

Length of output: 947

---

Script:

#!/bin/bash
# Let's check all error definitions and error handling patterns
echo "Checking all error constants..."
cat proxy/jsonrpc/errors.go

echo "Checking error handling in server methods..."
rg "func.*handle.*" proxy/jsonrpc/server.go -A 10

echo "Checking if context is used in the request processing..."
rg "context\." proxy/jsonrpc/server.go

Length of output: 3700

proxy/jsonrpc/client.go (1)

Line range hint 1-194: Consider enhancing context handling with middleware and validation.

To improve the robustness of the context handling, consider:

1. Adding context timeout validation to ensure the provided context timeout doesn't exceed the client's default timeout
2. Implementing middleware for common context handling logic (logging, metrics, etc.)
3. Adding context cancellation checks in long-running operations

Example timeout validation:

func validateTimeout(ctx context.Context, defaultTimeout time.Duration) error {
    if deadline, ok := ctx.Deadline(); ok && deadline.Sub(time.Now()) > defaultTimeout {
        return fmt.Errorf("context deadline %v exceeds default timeout %v", deadline, defaultTimeout)
    }
    return nil
}

Would you like me to provide a more detailed implementation of these suggestions?

Configuration used: CodeRabbit UI
Review profile: CHILL

#!/bin/bash
# Search for any remaining executor method definitions that might be missing context
ast-grep --pattern 'interface Executor {
  $$$
  $method($params) $ret {
    $$$
  }
  $$$
}'

# Search for any method calls that might still be using old signatures
rg "s\.Exec\." --type go

#!/bin/bash
# Search for the Executor interface definition to see all required methods
rg "type Executor interface" -A 20 --type go

# Search for any executor implementations to verify context usage
ast-grep --pattern 'type $_ struct {
  $$$
}

func (e $_) $_($params) $_ {
  $$$
}'

#!/bin/bash
# Description: Verify that all Executor interface methods are implemented with context parameter
# Expected: All interface methods should have corresponding implementations with context

# Search for interface definition
echo "=== Executor Interface Methods ==="
ast-grep --pattern 'type Executor interface {
  $$$
}'

# Search for DummyExecutor implementations
echo -e "\n=== DummyExecutor Implementations ==="
ast-grep --pattern 'func (e *DummyExecutor) $_($$$) $_' 

#!/bin/bash
# Description: Check all executor method signatures to ensure consistent context parameter addition

# Check interface definition
echo "Checking Executor interface definition:"
rg -A 10 "type Executor interface" --type go

# Check implementations
echo "Checking executor method implementations:"
ast-grep --pattern 'func ($x *$_) $method($params) $_ {
  $$$
}'

#!/bin/bash
# Search for all executor method implementations
echo "Searching for InitChain implementations:"
rg "func.*InitChain.*context\.Context.*\)" --type go -A 2

echo -e "\nSearching for GetTxs implementations:"
rg "func.*GetTxs.*context\.Context.*\)" --type go -A 2

echo -e "\nSearching for ExecuteTxs implementations:"
rg "func.*ExecuteTxs.*context\.Context.*\)" --type go -A 2

echo -e "\nSearching for SetFinal implementations:"
rg "func.*SetFinal.*context\.Context.*\)" --type go -A 2

#!/bin/bash
# Description: Verify that tests are updated to use context with mock executor

# Test: Search for mock executor usage in tests
echo "Searching for mock executor usage in tests..."
rg -l "NewMockExecutor" --glob "**/*_test.go"

# Test: Verify context is passed in test calls
echo "Verifying context usage in test calls..."
rg "mock.(ExecuteTxs|GetTxs|InitChain|SetFinal)" --glob "**/*_test.go" -A 2

#!/bin/bash
# Let's examine the test files that use mock executor more closely
echo "Content of proxy/grpc/client_server_test.go:"
cat proxy/grpc/client_server_test.go

echo -e "\nContent of proxy/jsonrpc/client_server_test.go:"
cat proxy/jsonrpc/client_server_test.go

# Let's also check for any test setup or mock initialization
echo -e "\nSearching for mock setup patterns:"
rg "mock := .+NewMockExecutor|executor := .+NewMockExecutor" -A 3