Add IGNORE_TEST and IGNORE_TEST_F macros

[stefano-p]

Add IGNORE_TEST and IGNORE_TEST_F macros 🚀

This feature allows developers to temporarily disable specific tests without removing them from the codebase. This is particularly useful when:

• Working on experimental features
• Dealing with temporarily broken tests
• Handling environment-dependent tests
• Managing long-running tests during development

New Macros ✨

Two new macros have been added:

• IGNORE_TEST() - for regular test cases
• IGNORE_TEST_F() - for fixture-based tests

Usage Example 💡

#include <tau/tau.h>

// Regular test case that will be executed
TEST(MathSuite, Addition) {
    int result = 2 + 2;
    CHECK_EQ(result, 4);
}

// This test will be ignored but remains in the codebase
IGNORE_TEST(MathSuite, ComplexCalculation) {
    int result = perform_complex_calculation();
    CHECK_EQ(result, 42);
}

// Setup for fixture
TEST_F_SETUP(DatabaseFixture) {
    tau->db = database_connect();
}

// Teardown for fixture
TEST_F_TEARDOWN(DatabaseFixture) {
    database_disconnect(tau->db);
}

// This fixture test will be ignored but setup/teardown are preserved
IGNORE_TEST_F(DatabaseFixture, SlowQuery) {
    bool query_result = database_execute_heavy_query(tau->db);
    CHECK_TRUE(query_result);
}

// This fixture test will run normally
TEST_F(DatabaseFixture, QuickQuery) {
    bool query_result = database_execute_simple_query(tau->db);
    CHECK_TRUE(query_result);
}

TAU_MAIN()

Output Example 🖥️

[==========] Running 4 test suites.
[ RUN      ] MathSuite.Addition
[       OK ] MathSuite.Addition (0.001s)
[ IGNORED  ] MathSuite.ComplexCalculation
[ RUN      ] DatabaseFixture.QuickQuery
[       OK ] DatabaseFixture.QuickQuery (0.003s)
[ IGNORED  ] DatabaseFixture.SlowQuery
[==========] 2 test suites ran
[  PASSED  ] 2 suites

Summary:
    Total test suites:          4
    Total suites run:           2
    Total warnings generated:   0
    Total suites skipped:       2
    Total suites failed:        0

Implementation Details 🔧

• Added ignored flag to test suite structure
• Extended test registration to support ignored state
• Modified test runner to handle ignored tests
• Maintained existing color coding (yellow for ignored tests)
• Updated test statistics to properly count ignored tests

Backwards Compatibility ⚡

This change is fully backwards compatible:

• Existing tests continue to work as before
• No changes required to existing test code
• No changes to command-line interface

Testing 🧪

The implementation has been tested with:

• Regular test cases
• Fixture-based tests
• Mixed ignored and regular tests
• Various output formats (colored, non-colored)