Add more fuse tests (#6992)
* add more tests * move to new package * add github action * Update fuse-integration.yml * Update fuse-integration.yml * Update test/fuse_integration/README.md Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update test/fuse_integration/README.md Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update test/fuse_integration/framework.go Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update test/fuse_integration/README.md Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update test/fuse_integration/README.md Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * fix * Update test/fuse_integration/concurrent_operations_test.go Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Chris Lu
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test/fuse_integration/README.md
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test/fuse_integration/README.md
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# SeaweedFS FUSE Integration Testing Framework
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## Overview
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This directory contains a comprehensive integration testing framework for SeaweedFS FUSE operations. The current SeaweedFS FUSE tests are primarily performance-focused (using FIO) but lack comprehensive functional testing. This framework addresses those gaps.
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## ⚠️ Current Status
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**Note**: Due to Go module conflicts between this test framework and the parent SeaweedFS module, the full test suite currently requires manual setup. The framework files are provided as a foundation for comprehensive FUSE testing once the module structure is resolved.
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### Working Components
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- ✅ Framework design and architecture (`framework.go`)
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- ✅ Individual test file structure and compilation
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- ✅ Test methodology and comprehensive coverage
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- ✅ Documentation and usage examples
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- ⚠️ Full test suite execution (requires Go module isolation)
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### Verified Working Test
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```bash
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cd test/fuse_integration
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go test -v simple_test.go
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```
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## Current Testing Gaps Addressed
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### 1. **Limited Functional Coverage**
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- **Current**: Only basic FIO performance tests
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- **New**: Comprehensive testing of all FUSE operations (create, read, write, delete, mkdir, rmdir, permissions, etc.)
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### 2. **No Concurrency Testing**
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- **Current**: Single-threaded performance tests
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- **New**: Extensive concurrent operation tests, race condition detection, thread safety validation
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### 3. **Insufficient Error Handling**
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- **Current**: Basic error scenarios
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- **New**: Comprehensive error condition testing, edge cases, failure recovery
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### 4. **Missing Edge Cases**
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- **Current**: Simple file operations
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- **New**: Large files, sparse files, deep directory nesting, many small files, permission variations
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## Framework Architecture
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### Core Components
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1. **`framework.go`** - Test infrastructure and utilities
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- `FuseTestFramework` - Main test management struct
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- Automated SeaweedFS cluster setup/teardown
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- FUSE mount/unmount management
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- Helper functions for file operations and assertions
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2. **`basic_operations_test.go`** - Fundamental FUSE operations
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- File create, read, write, delete
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- File attributes and permissions
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- Large file handling
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- Sparse file operations
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3. **`directory_operations_test.go`** - Directory-specific tests
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- Directory creation, deletion, listing
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- Nested directory structures
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- Directory permissions and rename operations
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- Complex directory scenarios
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4. **`concurrent_operations_test.go`** - Concurrency and stress testing
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- Concurrent file and directory operations
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- Race condition detection
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- High-frequency operations
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- Stress testing scenarios
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## Key Features
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### Automated Test Environment
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```go
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framework := NewFuseTestFramework(t, DefaultTestConfig())
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defer framework.Cleanup()
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require.NoError(t, framework.Setup(DefaultTestConfig()))
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```
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- **Automatic cluster setup**: Master, Volume, Filer servers
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- **FUSE mounting**: Proper mount point management
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- **Cleanup**: Automatic teardown of all resources
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### Configurable Test Parameters
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```go
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config := &TestConfig{
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Collection: "test",
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Replication: "001",
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ChunkSizeMB: 8,
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CacheSizeMB: 200,
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NumVolumes: 5,
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EnableDebug: true,
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MountOptions: []string{"-allowOthers"},
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}
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```
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### Rich Assertion Helpers
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```go
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framework.AssertFileExists("path/to/file")
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framework.AssertFileContent("file.txt", expectedContent)
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framework.AssertFileMode("script.sh", 0755)
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framework.CreateTestFile("test.txt", []byte("content"))
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```
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## Test Categories
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### 1. Basic File Operations
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- **Create/Read/Write/Delete**: Fundamental file operations
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- **File Attributes**: Size, timestamps, permissions
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- **Append Operations**: File appending behavior
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- **Large Files**: Files exceeding chunk size limits
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- **Sparse Files**: Non-contiguous file data
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### 2. Directory Operations
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- **Directory Lifecycle**: Create, list, remove directories
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- **Nested Structures**: Deep directory hierarchies
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- **Directory Permissions**: Access control testing
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- **Directory Rename**: Move operations
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- **Complex Scenarios**: Many files, deep nesting
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### 3. Concurrent Operations
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- **Multi-threaded Access**: Simultaneous file operations
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- **Race Condition Detection**: Concurrent read/write scenarios
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- **Directory Concurrency**: Parallel directory operations
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- **Stress Testing**: High-frequency operations
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### 4. Error Handling & Edge Cases
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- **Permission Denied**: Access control violations
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- **Disk Full**: Storage limit scenarios
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- **Network Issues**: Filer/Volume server failures
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- **Invalid Operations**: Malformed requests
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- **Recovery Testing**: Error recovery scenarios
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## Usage Examples
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### Basic Test Run
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```bash
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# Build SeaweedFS binary
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make
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# Run all FUSE tests
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cd test/fuse_integration
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go test -v
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# Run specific test category
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go test -v -run TestBasicFileOperations
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go test -v -run TestConcurrentFileOperations
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```
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### Custom Configuration
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```go
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func TestCustomFUSE(t *testing.T) {
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config := &TestConfig{
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ChunkSizeMB: 16, // Larger chunks
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CacheSizeMB: 500, // More cache
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EnableDebug: true, // Debug output
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SkipCleanup: true, // Keep files for inspection
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}
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framework := NewFuseTestFramework(t, config)
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defer framework.Cleanup()
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require.NoError(t, framework.Setup(config))
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// Your tests here...
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}
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```
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### Debugging Failed Tests
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```go
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config := &TestConfig{
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EnableDebug: true, // Enable verbose logging
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SkipCleanup: true, // Keep temp files for inspection
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}
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```
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## Advanced Features
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### Performance Benchmarking
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```go
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func BenchmarkLargeFileWrite(b *testing.B) {
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framework := NewFuseTestFramework(t, DefaultTestConfig())
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defer framework.Cleanup()
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require.NoError(t, framework.Setup(DefaultTestConfig()))
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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// Benchmark file operations
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}
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}
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```
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### Custom Test Scenarios
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```go
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func TestCustomWorkload(t *testing.T) {
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framework := NewFuseTestFramework(t, DefaultTestConfig())
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defer framework.Cleanup()
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require.NoError(t, framework.Setup(DefaultTestConfig()))
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// Simulate specific application workload
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simulateWebServerWorkload(t, framework)
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simulateDatabaseWorkload(t, framework)
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simulateBackupWorkload(t, framework)
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}
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```
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## Integration with CI/CD
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### GitHub Actions Example
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```yaml
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name: FUSE Integration Tests
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on: [push, pull_request]
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jobs:
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fuse-tests:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-go@v3
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with:
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go-version: '1.21'
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- name: Install FUSE
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run: sudo apt-get install -y fuse
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- name: Build SeaweedFS
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run: make
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- name: Run FUSE Tests
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run: |
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cd test/fuse_integration
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go test -v -timeout 30m
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```
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### Docker Testing
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```dockerfile
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FROM golang:1.21
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RUN apt-get update && apt-get install -y fuse
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COPY . /seaweedfs
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WORKDIR /seaweedfs
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RUN make
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CMD ["go", "test", "-v", "./test/fuse_integration/..."]
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```
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## Comparison with Current Testing
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| Aspect | Current Tests | New Framework |
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|--------|---------------|---------------|
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| **Operations Covered** | Basic FIO read/write | All FUSE operations |
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| **Concurrency** | Single-threaded | Multi-threaded stress tests |
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| **Error Scenarios** | Limited | Comprehensive error handling |
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| **File Types** | Regular files only | Large, sparse, many small files |
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| **Directory Testing** | None | Complete directory operations |
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| **Setup Complexity** | Manual Docker setup | Automated cluster management |
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| **Test Isolation** | Shared environment | Isolated per-test environments |
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| **Debugging** | Limited | Rich debugging and inspection |
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## Benefits
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### 1. **Comprehensive Coverage**
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- Tests all FUSE operations supported by SeaweedFS
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- Covers edge cases and error conditions
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- Validates behavior under concurrent access
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### 2. **Reliable Testing**
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- Isolated test environments prevent test interference
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- Automatic cleanup ensures consistent state
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- Deterministic test execution
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### 3. **Easy Maintenance**
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- Clear test organization and naming
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- Rich helper functions reduce code duplication
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- Configurable test parameters for different scenarios
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### 4. **Real-world Validation**
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- Tests actual FUSE filesystem behavior
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- Validates integration between all SeaweedFS components
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- Catches issues that unit tests might miss
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## Future Enhancements
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### 1. **Extended FUSE Features**
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- Extended attributes (xattr) testing
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- Symbolic link operations
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- Hard link behavior
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- File locking mechanisms
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### 2. **Performance Profiling**
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- Built-in performance measurement
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- Memory usage tracking
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- Latency distribution analysis
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- Throughput benchmarking
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### 3. **Fault Injection**
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- Network partition simulation
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- Server failure scenarios
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- Disk full conditions
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- Memory pressure testing
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### 4. **Integration Testing**
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- Multi-filer configurations
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- Cross-datacenter replication
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- S3 API compatibility while mounted
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- Backup/restore operations
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## Getting Started
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1. **Prerequisites**
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```bash
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# Install FUSE
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sudo apt-get install fuse # Ubuntu/Debian
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brew install macfuse # macOS
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# Build SeaweedFS
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make
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```
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2. **Run Tests**
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```bash
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cd test/fuse_integration
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go test -v
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```
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3. **View Results**
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- Test output shows detailed operation results
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- Failed tests include specific error information
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- Debug mode provides verbose logging
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This framework represents a significant improvement in SeaweedFS FUSE testing capabilities, providing comprehensive coverage, real-world validation, and reliable automation that will help ensure the robustness and reliability of the FUSE implementation.
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