Running the Codegen Tests

Quick Start

# Regenerate C code from all tests
for f in tests/codegen/*.sui; do
    ./target/debug/suicmez "$f"
done

# Compile and run a single test
gcc tests/codegen/test_comprehensive.c -o /tmp/test_comprehensive
/tmp/test_comprehensive

Test Summary

Test	Purpose	Input	Output
`test_executable.sui`	Simple arithmetic	Basic int operations	Exit code with result
`test_array_simple.sui`	Array operations	Array literal and indexing	Debug output with array values
`test_enum_simple.sui`	Enum types	Enum variant creation	Discriminant value
`test_comprehensive.sui`	Mixed types	All basic + complex types	Full debug trace
`test_all_types.sui`	Type coverage	Every language type	Debug output for each

Running Individual Tests

1. Array Test

./target/debug/suicmez tests/codegen/test_array_simple.sui
gcc tests/codegen/test_array_simple.c -o /tmp/array_test
/tmp/array_test

Expected Output:

| int* arr = (int[]){1, 2, 3} | 
 0x...
| int x = arr[0] | 
 1

2. Enum Test

./target/debug/suicmez tests/codegen/test_enum_simple.sui
gcc tests/codegen/test_enum_simple.c -o /tmp/enum_test
/tmp/enum_test

Expected Output:

| struct Color c = (struct Color){ .discriminant = 0, .data = { .red = (struct Color_Red){} } } | 
 0

3. Comprehensive Test

./target/debug/suicmez tests/codegen/test_comprehensive.sui
gcc tests/codegen/test_comprehensive.c -o /tmp/comprehensive_test
/tmp/comprehensive_test

Expected Output: (full debug trace of all operations)

| int x = 10 | 
 10
| int y = 20 | 
 20
| int sum = add(x, y) | 
 30
... (more output)

Debugging the Codegen

Each test's generated C file includes debug printf statements. To see what's happening:

Look at the generated C code:
```
cat tests/codegen/test_comprehensive.c
```

Run with debug output:

gcc tests/codegen/test_comprehensive.c -o /tmp/test
/tmp/test 2>&1 | head -20

Check for compilation errors:

gcc tests/codegen/test_comprehensive.c -c -o /tmp/test.o

Verifying Correctness

All tests should:

✅ Generate valid C99 code
✅ Compile without warnings
✅ Execute without segmentation faults
✅ Show proper debug output for each statement

Common Issues

Test fails to compile

Check that the .sui file was properly transpiled
Regenerate with: ./target/debug/suicmez tests/codegen/test_name.sui

Debug output missing

Ensure the printf statements are in the generated C code
Check for return statements that might skip debug output

Wrong values printed

The debug output uses automatic format specifiers (%d, %f, %s, %p)
Struct types print the first field value
Arrays print the pointer address

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