C++: Turn header variant tests that use PCH files into integration tests

cpp/ql/integration-tests/header-variant-tests/clang-pch/a.c

@@ -0,0 +1,2 @@
+#include "a.h"
+#define FOUR 4

cpp/ql/integration-tests/header-variant-tests/clang-pch/c.c

@@ -0,0 +1,3 @@
+int main() {
+  return ONE + FOUR;
+}

cpp/ql/integration-tests/header-variant-tests/clang-pch/d.c

@@ -0,0 +1 @@
+#import "d.h"

cpp/ql/integration-tests/header-variant-tests/clang-pch/e.c

@@ -0,0 +1,3 @@
+int main() {
+  return SEVENTEEN;
+}

cpp/ql/integration-tests/header-variant-tests/clang-pch/f.c

@@ -0,0 +1,5 @@
+#if 1
+#pragma hdrstop
+extern int x;
+#define SEEN_F
+#endif

cpp/ql/integration-tests/header-variant-tests/clang-pch/g.c

@@ -0,0 +1,5 @@
+#ifdef SEEN_F
+static int g() {
+  return 20;
+}
+#endif

cpp/ql/integration-tests/header-variant-tests/clang-pch/h.c

@@ -0,0 +1,4 @@
+#include "h1.h"
+#pragma hdrstop
+#include "h2.h"
+#define SEEN_H

cpp/ql/test/header-variant-tests/clang-pch/i.c → cpp/ql/integration-tests/header-variant-tests/clang-pch/i.c

@@ -13,4 +13,3 @@ static int h2() {
   return 32;
 }
 #endif
-// semmle-extractor-options: --clang -include-pch ${testdir}/clang-pch.testproj/h.pch

cpp/ql/integration-tests/header-variant-tests/clang-pch/test.py

@@ -0,0 +1,17 @@
+import os
+
+
+def test(codeql, cpp):
+    os.mkdir("pch")
+    extractor = f"{cpp.get_tool("extractor")}" 
+    codeql.database.create(command=[
+        f'"{extractor}" --mimic-clang -emit-pch -o pch/a.pch a.c',
+        f'"{extractor}" --mimic-clang -include-pch pch/a.pch -Iextra_dummy_path b.c',
+        f'"{extractor}" --mimic-clang -include pch/a -Iextra_dummy_path c.c',
+        f'"{extractor}" --mimic-clang -emit-pch -o pch/d.pch d.c',
+        f'"{extractor}" --mimic-clang -include-pch pch/d.pch e.c',
+        f'"{extractor}" --mimic-clang -emit-pch -o pch/f.pch f.c',
+        f'"{extractor}" --mimic-clang -include-pch pch/f.pch g.c',
+        f'"{extractor}" --mimic-clang -emit-pch -o pch/h.pch h.c',
+        f'"{extractor}" --mimic-clang -include-pch pch/h.pch i.c',
+    ])

cpp/ql/integration-tests/header-variant-tests/microsoft-pch/a.c

@@ -0,0 +1 @@
+#include "a.h"

cpp/ql/integration-tests/header-variant-tests/microsoft-pch/b.c

@@ -0,0 +1,6 @@
+#pragma hdrstop
+#include "b.h"
+
+int b() {
+  return A;
+}

cpp/ql/integration-tests/header-variant-tests/microsoft-pch/c.c

@@ -0,0 +1,6 @@
+#include "d.h"
+#include "c.h"
+
+int c() {
+  return A;
+}

cpp/ql/integration-tests/header-variant-tests/microsoft-pch/test.py

@@ -0,0 +1,11 @@
+import os
+
+
+def test(codeql, cpp):
+    os.mkdir("pch")
+    extractor = f"{cpp.get_tool("extractor")}" 
+    codeql.database.create(command=[
+        f'"{extractor}" --mimic-cl /Yca.h /Fppch/a.pch a.c',
+        f'"{extractor}" --mimic-cl /Yub.h /Fppch/a.pch b.c',
+        f'"{extractor}" --mimic-cl /Yuc.h /Fppch/a.pch c.c',
+    ])