[Patch v5 3/8] test: add error reporting tests

[David Bremner]

This includes tests for all of the error fprintfs in the library I
could figure out how to test without using gdb scripts. It boils down
to errors opening files and exceptions caused by corrupted Xapian
databases.
---
 test/T560-lib-error.sh | 250 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 250 insertions(+)
 create mode 100755 test/T560-lib-error.sh

diff --git a/test/T560-lib-error.sh b/test/T560-lib-error.sh
new file mode 100755
index 0000000..c2964cb
--- /dev/null
+++ b/test/T560-lib-error.sh
@@ -0,0 +1,250 @@
+#!/usr/bin/env bash
+test_description="error reporting for library"
+
+. ./test-lib.sh
+
+backup_database (){
+    rm -rf notmuch-dir-backup
+    cp -a ${MAIL_DIR}/.notmuch notmuch-dir-backup
+}
+restore_database (){
+    rm -rf ${MAIL_DIR}/.notmuch
+    cp -a notmuch-dir-backup ${MAIL_DIR}/.notmuch
+}
+
+
+add_email_corpus
+
+test_expect_success "building database" "NOTMUCH_NEW"
+
+test_begin_subtest "Open null pointer"
+test_C <<EOF
+#include <stdio.h>
+#include <notmuch.h>
+int main (int argc, char** argv)
+{
+    notmuch_database_t *db;
+    notmuch_status_t stat;
+    stat = notmuch_database_open (NULL, 0, 0);
+}
+EOF
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+Error: Cannot open a database for a NULL path.
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "Open nonexistent database"
+test_C <<EOF
+#include <stdio.h>
+#include <notmuch.h>
+int main (int argc, char** argv)
+{
+    notmuch_database_t *db;
+    notmuch_status_t stat;
+    stat = notmuch_database_open ("/nonexistent/foo", 0, 0);
+}
+EOF
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+Error opening database at /nonexistent/foo/.notmuch: No such file or directory
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "Write to read-only database"
+test_C ${MAIL_DIR} <<EOF
+#include <stdio.h>
+#include <notmuch.h>
+int main (int argc, char** argv)
+{
+   notmuch_database_t *db;
+   notmuch_status_t stat;
+   stat = notmuch_database_open (argv[1], NOTMUCH_DATABASE_MODE_READ_ONLY, &db);
+   if (stat != NOTMUCH_STATUS_SUCCESS) {
+     fprintf (stderr, "error opening database: %d\n", stat);
+   }
+   stat = notmuch_database_add_message (db, "/dev/null", NULL);
+}
+EOF
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+Cannot write to a read-only database.
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "Add non-existent file"
+test_C ${MAIL_DIR} <<EOF
+#include <stdio.h>
+#include <notmuch.h>
+int main (int argc, char** argv)
+{
+   notmuch_database_t *db;
+   notmuch_status_t stat;
+   stat = notmuch_database_open (argv[1], NOTMUCH_DATABASE_MODE_READ_WRITE, &db);
+   if (stat != NOTMUCH_STATUS_SUCCESS) {
+     fprintf (stderr, "error opening database: %d\n", stat);
+   }
+   stat = notmuch_database_add_message (db, "/nonexistent", NULL);
+   if (stat)
+       fputs (notmuch_database_status_string (db), stderr);
+
+}
+EOF
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+Error opening /nonexistent: No such file or directory
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "compact, overwriting existing backup"
+test_C ${MAIL_DIR} <<EOF
+#include <stdio.h>
+#include <notmuch.h>
+static void
+status_cb (const char *msg, void *closure)
+{
+    printf ("%s\n", msg);
+}
+int main (int argc, char** argv)
+{
+   notmuch_database_t *db;
+   notmuch_status_t stat;
+   stat = notmuch_database_compact (argv[1], argv[1], status_cb, NULL);
+}
+EOF
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+Path already exists: CWD/mail
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+cat <<EOF > head.c
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <talloc.h>
+#include <notmuch.h>
+
+int main (int argc, char** argv)
+{
+   notmuch_database_t *db;
+   notmuch_status_t stat;
+   char *path;
+   int fd;
+
+   stat = notmuch_database_open (argv[1], NOTMUCH_DATABASE_MODE_READ_WRITE, &db);
+   if (stat != NOTMUCH_STATUS_SUCCESS) {
+     fprintf (stderr, "error opening database: %d\n", stat);
+   }
+   path = talloc_asprintf (db, "%s/.notmuch/xapian/postlist.DB", argv[1]);
+   fd = open(path,O_WRONLY|O_TRUNC);
+   if (fd < 0)
+       fprintf (stderr, "error opening %s\n");
+EOF
+cat <<EOF > tail.c
+   if (stat) {
+       const char *stat_str = notmuch_database_status_string (db);
+       if (stat_str)
+           fputs (stat_str, stderr);
+    }
+
+}
+EOF
+
+backup_database
+test_begin_subtest "Xapian exception finding message"
+cat head.c - tail.c <<EOF | test_C ${MAIL_DIR}
+   {
+       notmuch_message_t *message = NULL;
+       stat = notmuch_database_find_message (db, "id:nonexistant", &message);
+   }
+EOF
+sed 's/^\(A Xapian exception [^:]*\):.*$/\1/' < OUTPUT > OUTPUT.clean
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+A Xapian exception occurred finding message
+EOF
+test_expect_equal_file EXPECTED OUTPUT.clean
+restore_database
+
+backup_database
+test_begin_subtest "Xapian exception getting tags"
+cat head.c - tail.c <<EOF | test_C ${MAIL_DIR}
+   {
+       notmuch_tags_t *tags = NULL;
+       tags = notmuch_database_get_all_tags (db);
+       stat = (tags == NULL);
+   }
+EOF
+sed 's/^\(A Xapian exception [^:]*\):.*$/\1/' < OUTPUT > OUTPUT.clean
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+A Xapian exception occurred getting tags
+EOF
+test_expect_equal_file EXPECTED OUTPUT.clean
+restore_database
+
+backup_database
+test_begin_subtest "Xapian exception creating directory"
+cat head.c - tail.c <<EOF | test_C ${MAIL_DIR}
+   {
+       notmuch_directory_t *directory = NULL;
+       stat = notmuch_database_get_directory (db, "none/existing", &directory);
+   }
+EOF
+sed 's/^\(A Xapian exception [^:]*\):.*$/\1/' < OUTPUT > OUTPUT.clean
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+A Xapian exception occurred creating a directory
+EOF
+test_expect_equal_file EXPECTED OUTPUT.clean
+restore_database
+
+backup_database
+test_begin_subtest "Xapian exception searching messages"
+cat head.c - tail.c <<EOF | test_C ${MAIL_DIR}
+   {
+       notmuch_messages_t *messages = NULL;
+       notmuch_query_t *query=notmuch_query_create (db, "*");
+       stat = notmuch_query_search_messages_st (query, &messages);
+   }
+EOF
+sed 's/^\(A Xapian exception [^:]*\):.*$/\1/' < OUTPUT > OUTPUT.clean
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+A Xapian exception occurred performing query
+Query string was: *
+EOF
+test_expect_equal_file EXPECTED OUTPUT.clean
+restore_database
+
+backup_database
+test_begin_subtest "Xapian exception counting messages"
+cat head.c - tail.c <<EOF | test_C ${MAIL_DIR}
+   {
+       notmuch_query_t *query=notmuch_query_create (db, "id:87ocn0qh6d.fsf at yoom.home.cworth.org");
+       int count = notmuch_query_count_messages (query);
+       stat = (count == 0);
+   }
+EOF
+sed 's/^\(A Xapian exception [^:]*\):.*$/\1/' < OUTPUT > OUTPUT.clean
+cat <<EOF >EXPECTED
+== stdout ==
+== stderr ==
+A Xapian exception occurred performing query
+Query string was: id:87ocn0qh6d.fsf at yoom.home.cworth.org
+EOF
+test_expect_equal_file EXPECTED OUTPUT.clean
+restore_database
+
+test_done
-- 
2.1.4