C++: Test complex-block statement thresholds

Cover blocks with four sufficiently large nested loops and the three-loop boundary for cpp/complex-block.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: geoffw0

cpp/ql/test/query-tests/Best Practices/BlockWithTooManyStatements/BlockWithTooManyStatements.cpp

@@ -0,0 +1,107 @@
+void complex_block_one() {
+  while (true) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  while (true) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  while (true) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  while (true) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+} // $ Alert
+
+void complex_block_two() {
+  for (;;) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  for (;;) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  for (;;) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  for (;;) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+} // $ Alert
+
+void three_complex_statements_is_not_enough() {
+  while (true) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  while (true) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+  while (true) {
+    int a = 1;
+    int b = 2;
+    int c = 3;
+    int d = 4;
+    int e = 5;
+    int f = 6;
+    int g = 7;
+  }
+}

cpp/ql/test/query-tests/Best Practices/BlockWithTooManyStatements/BlockWithTooManyStatements.expected

@@ -0,0 +1,2 @@
+| BlockWithTooManyStatements.cpp:1:26:38:1 | { ... } | Block with too many statements (4 complex statements in the block). |
+| BlockWithTooManyStatements.cpp:40:26:77:1 | { ... } | Block with too many statements (4 complex statements in the block). |

cpp/ql/test/query-tests/Best Practices/BlockWithTooManyStatements/BlockWithTooManyStatements.qlref

@@ -0,0 +1,2 @@
+query: Best Practices/BlockWithTooManyStatements.ql
+postprocess: utils/test/InlineExpectationsTestQuery.ql