initial pass, not working

Author: aabrown100-git

Code/Source/solver/CMakeLists.txt

@@ -313,10 +313,9 @@ if(ENABLE_UNIT_TEST)
   enable_testing()
   include(GoogleTest)
 
-  # add test.cpp for unit test
-
-  # remove the main.cpp and add test.cpp
-  set(TEST_SOURCES "../../../tests/unitTests/test.cpp")
+  # add modular unit test files using GLOB
+  # remove the main.cpp and add modular test files
+  file(GLOB TEST_SOURCES "../../../tests/unitTests/*.cpp")
   list(REMOVE_ITEM CSRCS "main.cpp")
   list(APPEND CSRCS ${TEST_SOURCES})
 

tests/unitTests/README.md

@@ -0,0 +1,75 @@
+# Material Model Unit Tests
+
+This directory contains unit tests for material models in the svMultiPhysics codebase. The tests have been modularized to improve maintainability and ease of adding new tests.
+
+## File Structure
+
+### Common Files
+- `material_test_common.h` - Common utilities, helper functions, base classes, and material parameter structs shared across all material model tests
+
+### Material Model Test Files
+- `material_test_neo_hookean.h/.cpp` - Tests for Neo-Hookean material model
+- `material_test_mooney_rivlin.h/.cpp` - Tests for Mooney-Rivlin material model  
+- `material_test_holzapfel_ogden.h/.cpp` - Tests for Holzapfel-Ogden material model (including Modified Anisotropy variant)
+- `material_test_main.cpp` - Main test runner that includes all material model test implementation files
+
+## Naming Convention
+
+All material model test files use the `material_test_` prefix to clearly identify them as material model tests. This allows for future addition of other unit test files (e.g., solver tests, boundary condition tests) with different prefixes.
+
+## Adding New Material Model Tests
+
+To add tests for a new material model:
+
+1. **Create the header file** (`material_test_[model_name].h`):
+   - Include `material_test_common.h`
+   - Define test fixture classes for the material model
+   - Include both STRUCT and USTRUCT variants if applicable
+
+2. **Create the implementation file** (`material_test_[model_name].cpp`):
+   - Include the corresponding header file
+   - Implement all test cases for the material model
+   - Include tests for both STRUCT and USTRUCT variants if applicable
+
+3. **Update the main test file** (`material_test_main.cpp`):
+   - Add include for the new header file
+   - Add include for the new implementation file
+
+4. **Update this README** to document the new material model tests
+
+## Test Structure
+
+Each material model test file follows this structure:
+
+### Header File
+- Test fixture classes that inherit from `MaterialModelTest`
+- Material-specific parameter setup
+- STRUCT and USTRUCT variants
+
+### Implementation File  
+- Identity deformation gradient tests (F = I)
+- Triaxial stretch/compression tests
+- Biaxial stretch/compression tests
+- Random deformation gradient tests (small, medium, large perturbations)
+- Material elasticity consistency tests
+- Both STRUCT and USTRUCT variants for each test type
+
+## Running Tests
+
+The tests are automatically included in the build system through the existing CMakeLists.txt file, which uses globbing to include all test source files.
+
+## Material Models Currently Tested
+
+1. **Neo-Hookean** - Isotropic hyperelastic material model
+2. **Mooney-Rivlin** - Isotropic hyperelastic material model with two parameters
+3. **Holzapfel-Ogden** - Anisotropic hyperelastic material model for cardiac tissue
+   - Standard variant
+   - Modified Anisotropy variant
+
+## Future Material Models
+
+The modular structure makes it easy to add tests for additional material models such as:
+- Guccione material model
+- Fung material model  
+- Ogden material model
+- And others...