Add integration tests for new practracker features

These tests check our .may_include checking, and our header file
checking.

They do not pass yet: we have a bug in our filtering code.

scripts/maint/practracker/test_practracker.sh

@@ -25,7 +25,9 @@ DATA="${PRACTRACKER_DIR}/testdata"
 
 run_practracker() {
     "${PYTHON:-python}" "${PRACTRACKER_DIR}/practracker.py" \
-        --max-include-count=0 --max-file-size=0 --max-function-size=0 --terse \
+        --max-include-count=0 --max-file-size=0 \
+        --max-h-include-count=0 --max-h-file-size=0 \
+        --max-function-size=0 --terse \
         "${DATA}/" "$@";
 }
 compare() {

scripts/maint/practracker/testdata/.may_include

@@ -0,0 +1,3 @@
+!advisory
+
+permitted.h

scripts/maint/practracker/testdata/a.c

@@ -3,7 +3,7 @@
 #include "two.h"
 #incldue "three.h"
 
-# include "four.h"
+# include "permitted.h"
 
 int
 i_am_a_function(void)

scripts/maint/practracker/testdata/ex0-expected.txt

@@ -2,6 +2,10 @@ problem file-size a.c 38
 problem include-count a.c 4
 problem function-size a.c:i_am_a_function() 9
 problem function-size a.c:another_function() 12
+problem dependency-violation a.c 3
 problem file-size b.c 15
 problem function-size b.c:foo() 4
 problem function-size b.c:bar() 5
+problem file-size header.h 8
+problem include-count header.h 4
+problem dependency-violation header.h 3

scripts/maint/practracker/testdata/ex1.txt

@@ -9,3 +9,7 @@ problem file-size b.c 15
 # This is removed, and so will produce an error.
 # problem function-size b.c:foo() 4
 problem function-size b.c:bar() 5
+problem dependency-violation a.c 3
+problem dependency-violation header.h 3
+problem file-size header.h 8
+problem include-count header.h 4

scripts/maint/practracker/testdata/header.h

@@ -0,0 +1,8 @@
+
+// some forbidden includes
+#include "foo.h"
+#include "quux.h"
+#include "quup.h"
+
+// a permitted include
+#include "permitted.h"