Keep braces in TEST_CASE arguments when finding tests

auto/generate_test_runner.rb

@@ -139,6 +139,7 @@ def find_tests(source)
     source_scrubbed = source_scrubbed.gsub(/\/\/(?:.+\/\*|\*(?:$|[^\/])).*$/, '')  # remove line comments that comment out the start of blocks
     source_scrubbed = source_scrubbed.gsub(/\/\*.*?\*\//m, '')                     # remove block comments
     source_scrubbed = source_scrubbed.gsub(/\/\/.*$/, '')                          # remove line comments (all that remain)
+    source_scrubbed = source_scrubbed.gsub(/TEST_(?:CASE|RANGE|MATRIX)\s*(\((?:[^()]|\g<1>)*\))/) { |s| s.gsub(substring_re, substring_subs) } # hide braces of compound literals in parameter lists
     lines = source_scrubbed.split(/(^\s*\#.*$) | (;|\{|\}) /x)                     # Treat preprocessor directives as a logical line. Match ;, {, and } as end of lines
                            .map { |line| line.gsub(substring_unre, substring_unsubs) } # unhide the problematic characters previously removed
 

docs/UnityChangeLog.md

@@ -19,6 +19,7 @@ Significant Bugfixes:
 
   - Default `UNITY_INCLUDE_EXEC_TIME` macros compile as ISO C99, are statement-safe, and accept `-Wsign-conversion` (#838)
   - `unity_test_summary.rb` honors its own default result directory and root path again. @youdie006
+  - Test runner generator keeps `TEST_CASE` arguments that contain braces, such as compound literals (#752)
 
 ### Unity 2.7.0 (July 2026)
 

test/tests/test_generate_test_runner.rb

@@ -1383,6 +1383,26 @@ def verify_number(expected, expression, output)
   $generate_test_runner_tests += 1
 end
 
+should 'FindTestsKeepsBracesInTestCaseArguments' do
+  # Issue #752: a compound literal such as (uint8_t[]){1, 2} contains braces,
+  # which must not end the logical line before the test function is found.
+  source = "TEST_CASE((uint8_t[]){0x1, 0x2, 0x3}, 3)\n" \
+           "TEST_CASE((uint8_t[]){0x4}, 1)\n" \
+           "void test_WithArray(const uint8_t * data, unsigned len)\n" \
+           "{\n" \
+           "}\n"
+  found = UnityTestRunnerGenerator.new(use_param_tests: true).find_tests(source).map { |t| [t[:test], t[:args]] }
+  expected = [['test_WithArray', ['(uint8_t[]){0x1, 0x2, 0x3}, 3', '(uint8_t[]){0x4}, 1']]]
+  if found == expected
+    report 'Runner_FindTestsKeepsBracesInTestCaseArguments:PASS'
+  else
+    report "  FAIL: expected #{expected.inspect}, got #{found.inspect}"
+    report 'Runner_FindTestsKeepsBracesInTestCaseArguments:FAIL'
+    $generate_test_runner_failures += 1
+  end
+  $generate_test_runner_tests += 1
+end
+
 RUNNER_TESTS.each do |testset|
   basename = File.basename(testset[:testfile], C_EXTENSION)
   testset_name = "Runner_#{basename}_#{testset[:name]}"

test/tests/test_unity_parameterized.c

@@ -171,6 +171,21 @@ void test_CharsArePreserved(unsigned index, char c)
     NextExpectedCharIndex++;
 }
 
+TEST_CASE((const int[]){1, 2, 3}, 3, 6)
+TEST_CASE((const int[]){4}, 1, 4)
+void test_CompoundLiteralArgsArePreserved(const int * values, unsigned count, int sum)
+{
+    int total = 0;
+    unsigned i;
+
+    for (i = 0; i < count; i++)
+    {
+        total += values[i];
+    }
+
+    TEST_ASSERT_EQUAL_INT(sum, total);
+}
+
 TEST_RANGE([0, 10, 2])
 void test_SingleRange(unsigned value)
 {