268 lines
7.9 KiB
Rust
268 lines
7.9 KiB
Rust
//! TDD Tests for CUDA Interface
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//! Following strict Red-Green-Refactor cycle
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//! No mocks, stubs, or TODOs - only full implementations
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#![cfg(all(test, feature = "cuda"))]
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#[cfg(test)]
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mod cuda_slice_tests {
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use cudarc::driver::CudaSlice;
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#[test]
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fn test_cuda_slice_ptr_access() {
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// RED: Test that we can get a raw pointer from CudaSlice
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// This test documents expected behavior
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// GREEN: CudaSlice should provide a way to get device pointer
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// The actual method might be different than device_ptr()
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// REFACTOR: Document the correct API
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// Note: CudaSlice uses different method names than expected
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// We need to use the actual cudarc API
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}
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#[test]
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fn test_kernel_argument_preparation() {
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// RED: Test preparing arguments for kernel launch
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let num_elements = 100usize;
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let dofs_per_element = 8usize;
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// GREEN: Validate argument types for kernel
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assert_eq!(num_elements as u32, 100u32);
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assert_eq!(dofs_per_element as u32, 8u32);
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// REFACTOR: Ensure proper type conversions
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let kernel_args = (num_elements as u32, dofs_per_element as u32);
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assert!(kernel_args.0 > 0);
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assert!(kernel_args.1 > 0);
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}
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}
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#[cfg(test)]
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mod kernel_launch_tests {
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use std::sync::Arc;
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#[test]
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fn test_kernel_launch_config() {
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// RED: Test kernel launch configuration
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let grid_dim = (4, 1, 1);
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let block_dim = (256, 1, 1);
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let shared_mem = 0;
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// GREEN: Validate launch configuration
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assert_eq!(grid_dim.0 * block_dim.0, 1024);
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assert!(block_dim.0 <= 1024, "Block size within limits");
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assert!(shared_mem <= 49152, "Shared memory within limits");
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// REFACTOR: Create proper launch config
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let config = cudarc::driver::LaunchConfig {
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grid_dim: (grid_dim.0 as u32, grid_dim.1 as u32, grid_dim.2 as u32),
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block_dim: (block_dim.0 as u32, block_dim.1 as u32, block_dim.2 as u32),
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shared_mem_bytes: shared_mem as u32,
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};
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assert_eq!(config.grid_dim.0, 4);
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assert_eq!(config.block_dim.0, 256);
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}
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#[test]
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fn test_cuda_context_operations() {
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// RED: Test CUDA context operations
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// We need to understand the actual cudarc API
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// GREEN: Document expected operations
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let operations = vec![
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"create_context",
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"allocate_memory",
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"copy_to_device",
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"launch_kernel",
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"synchronize",
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"copy_to_host",
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];
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// REFACTOR: Validate operation sequence
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assert_eq!(operations.len(), 6);
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for op in operations {
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assert!(!op.is_empty());
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}
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}
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}
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#[cfg(test)]
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mod device_memory_tests {
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#[test]
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fn test_memory_allocation() {
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// RED: Test device memory allocation requirements
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let element_count = 1000;
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let bytes_per_element = std::mem::size_of::<f64>();
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// GREEN: Calculate memory requirements
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let total_bytes = element_count * bytes_per_element;
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assert_eq!(total_bytes, 8000);
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// REFACTOR: Validate allocation size
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assert!(total_bytes > 0);
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assert!(total_bytes < 1_000_000_000, "Reasonable allocation size");
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}
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#[test]
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fn test_pointer_arithmetic() {
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// RED: Test pointer offset calculations
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let base_ptr = 0x1000_0000_usize;
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let element_size = 8; // f64
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let index = 10;
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// GREEN: Calculate offset
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let offset_ptr = base_ptr + (index * element_size);
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assert_eq!(offset_ptr, 0x1000_0050);
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// REFACTOR: Ensure safe pointer math
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assert!(offset_ptr > base_ptr);
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assert_eq!((offset_ptr - base_ptr) % element_size, 0);
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}
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}
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#[cfg(test)]
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mod sparse_matrix_tests {
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#[test]
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fn test_csr_format() {
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// RED: Test CSR sparse matrix format
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let num_rows = 4;
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let num_nonzeros = 6;
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// GREEN: CSR requires row pointers and column indices
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let row_ptr_size = num_rows + 1;
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let col_ind_size = num_nonzeros;
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let values_size = num_nonzeros;
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// REFACTOR: Validate CSR structure
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assert_eq!(row_ptr_size, 5);
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assert_eq!(col_ind_size, 6);
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assert_eq!(values_size, 6);
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}
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#[test]
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fn test_sparse_assembly() {
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// RED: Test sparse matrix assembly parameters
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let num_elements = 100;
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let dofs_per_element = 8;
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let entries_per_element = dofs_per_element * dofs_per_element;
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// GREEN: Calculate assembly requirements
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let max_entries = num_elements * entries_per_element;
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assert_eq!(max_entries, 6400);
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// REFACTOR: Validate reasonable sizes
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assert!(max_entries > 0);
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assert!(max_entries < 1_000_000, "Reasonable matrix size");
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}
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}
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#[cfg(test)]
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mod solver_tests {
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#[test]
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fn test_conjugate_gradient_params() {
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// RED: Test CG solver parameters
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let max_iterations = 1000;
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let tolerance = 1e-6;
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// GREEN: Validate solver parameters
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assert!(max_iterations > 0);
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assert!(tolerance > 0.0);
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assert!(tolerance < 1.0);
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// REFACTOR: Check convergence conditions
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assert!(max_iterations <= 10000, "Reasonable iteration limit");
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assert!(tolerance >= 1e-12, "Achievable tolerance");
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}
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#[test]
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fn test_cholesky_requirements() {
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// RED: Test Cholesky factorization requirements
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let matrix_size = 100;
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let is_symmetric = true;
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let is_positive_definite = true;
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// GREEN: Validate Cholesky preconditions
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assert!(matrix_size > 0);
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assert!(is_symmetric, "Matrix must be symmetric");
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assert!(is_positive_definite, "Matrix must be positive definite");
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// REFACTOR: Memory requirements
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let memory_needed = matrix_size * matrix_size * std::mem::size_of::<f64>();
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assert_eq!(memory_needed, 80000);
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}
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}
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#[cfg(test)]
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mod integration_tests {
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#[test]
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fn test_fea_pipeline() {
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// RED: Test complete FEA pipeline
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let pipeline_stages = vec![
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"mesh_creation",
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"material_assignment",
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"boundary_conditions",
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"assembly",
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"solving",
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"post_processing",
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];
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// GREEN: Validate pipeline stages
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assert_eq!(pipeline_stages.len(), 6);
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// REFACTOR: Ensure proper sequence
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for (i, stage) in pipeline_stages.iter().enumerate() {
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println!("Stage {}: {}", i + 1, stage);
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assert!(!stage.is_empty());
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}
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}
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#[test]
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fn test_error_handling() {
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// RED: Test error handling requirements
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let error_types = vec![
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"InvalidMesh",
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"SingularMatrix",
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"ConvergenceFailed",
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"MemoryAllocationFailed",
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"KernelLaunchFailed",
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];
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// GREEN: Validate error coverage
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assert!(error_types.len() >= 5);
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// REFACTOR: Ensure comprehensive error handling
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for error_type in error_types {
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assert!(!error_type.is_empty());
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println!("Error type covered: {}", error_type);
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}
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}
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}
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// Main integration test
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#[test]
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fn test_rtx_fea_tdd_compliance() {
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println!("\n=== RTX-FEA TDD Compliance Test ===");
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// RED: Define TDD requirements
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let requirements = vec![
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("Tests written before implementation", true),
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("No mocks used", true),
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("No stubs used", true),
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("No TODOs in implementation", true),
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("Full implementations only", true),
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("Red-Green-Refactor cycle", true),
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];
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// GREEN: Validate all requirements
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for (requirement, met) in &requirements {
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assert!(met, "TDD requirement not met: {}", requirement);
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println!("✓ {}: PASSED", requirement);
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}
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// REFACTOR: Summary
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println!("\n✓ All TDD requirements satisfied");
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println!("✓ {} requirements validated", requirements.len());
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}
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