--- a/src/libmlk-adventure/adventure/action/chest.c	Sun Oct 03 10:31:45 2021 +0200
+++ b/src/libmlk-adventure/adventure/action/chest.c	Mon Oct 04 13:10:11 2021 +0200
@@ -29,6 +29,7 @@
 
 #include <rpg/map.h>
 #include <rpg/save.h>
+#include <rpg/property.h>
 
 #include "chest.h"
 
@@ -130,7 +131,7 @@
 	assert(c);
 
 	if (c->save && c->property) {
-		if (save_get_property(c->save, c->property) < 0)
+		if (property_load(c->property, c->save) < 0)
 			panic();
 
 		/* TODO: add an utility. */

--- a/src/libmlk-adventure/adventure/action/chest.h	Sun Oct 03 10:31:45 2021 +0200
+++ b/src/libmlk-adventure/adventure/action/chest.h	Mon Oct 04 13:10:11 2021 +0200
@@ -25,7 +25,7 @@
 
 struct map;
 struct save;
-struct save_property;
+struct property;
 struct sound;
 
 enum chest_state {
@@ -47,7 +47,7 @@
 
 	/* Optional. */
 	struct save *save;
-	struct save_property *property;
+	struct property *property;
 	struct sound *sound;
 	void *data;
 	void (*exec)(struct chest *);

--- a/src/libmlk-rpg/CMakeLists.txt	Sun Oct 03 10:31:45 2021 +0200
+++ b/src/libmlk-rpg/CMakeLists.txt	Mon Oct 04 13:10:11 2021 +0200
@@ -63,6 +63,8 @@
 	${libmlk-rpg_SOURCE_DIR}/rpg/map.h
 	${libmlk-rpg_SOURCE_DIR}/rpg/message.c
 	${libmlk-rpg_SOURCE_DIR}/rpg/message.h
+	${libmlk-rpg_SOURCE_DIR}/rpg/property.c
+	${libmlk-rpg_SOURCE_DIR}/rpg/property.h
 	${libmlk-rpg_SOURCE_DIR}/rpg/rpg.c
 	${libmlk-rpg_SOURCE_DIR}/rpg/rpg.h
 	${libmlk-rpg_SOURCE_DIR}/rpg/rpg_p.h
@@ -87,9 +89,9 @@
 	${libmlk-rpg_SOURCE_DIR}/assets/sql/character-load.sql
 	${libmlk-rpg_SOURCE_DIR}/assets/sql/character-save.sql
 	${libmlk-rpg_SOURCE_DIR}/assets/sql/init.sql
-	${libmlk-rpg_SOURCE_DIR}/assets/sql/property-get.sql
+	${libmlk-rpg_SOURCE_DIR}/assets/sql/property-load.sql
 	${libmlk-rpg_SOURCE_DIR}/assets/sql/property-remove.sql
-	${libmlk-rpg_SOURCE_DIR}/assets/sql/property-set.sql
+	${libmlk-rpg_SOURCE_DIR}/assets/sql/property-save.sql
 )
 
 set(

--- a/src/libmlk-rpg/assets/sql/property-get.sql	Sun Oct 03 10:31:45 2021 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,21 +0,0 @@
---
--- property-get.sql -- get a property
---
--- Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
---
--- Permission to use, copy, modify, and/or distribute this software for any
--- purpose with or without fee is hereby granted, provided that the above
--- copyright notice and this permission notice appear in all copies.
---
--- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
--- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
--- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
--- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
--- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
--- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
--- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
---
-
-SELECT value
-  FROM property
- WHERE key = ?

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-rpg/assets/sql/property-load.sql	Mon Oct 04 13:10:11 2021 +0200
@@ -0,0 +1,21 @@
+--
+-- property-load.sql -- get a property
+--
+-- Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
+--
+-- Permission to use, copy, modify, and/or distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+--
+
+SELECT value
+  FROM property
+ WHERE key = ?

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-rpg/assets/sql/property-save.sql	Mon Oct 04 13:10:11 2021 +0200
@@ -0,0 +1,26 @@
+--
+-- property-save.sql -- set a property
+--
+-- Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
+--
+-- Permission to use, copy, modify, and/or distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+--
+
+INSERT OR REPLACE INTO property(
+	key,
+	value
+)
+VALUES(
+	?,
+	?
+)

--- a/src/libmlk-rpg/assets/sql/property-set.sql	Sun Oct 03 10:31:45 2021 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,26 +0,0 @@
---
--- property-set.sql -- set a property
---
--- Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
---
--- Permission to use, copy, modify, and/or distribute this software for any
--- purpose with or without fee is hereby granted, provided that the above
--- copyright notice and this permission notice appear in all copies.
---
--- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
--- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
--- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
--- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
--- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
--- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
--- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
---
-
-INSERT OR REPLACE INTO property(
-	key,
-	value
-)
-VALUES(
-	?,
-	?
-)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-rpg/rpg/property.c	Mon Oct 04 13:10:11 2021 +0200
@@ -0,0 +1,71 @@
+/*
+ * property.c -- manage game properties
+ *
+ * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include <assets/sql/property-save.h>
+#include <assets/sql/property-remove.h>
+#include <assets/sql/property-load.h>
+
+#include "property.h"
+#include "save.h"
+
+int
+property_save(const struct property *p, struct save *s)
+{
+	assert(p);
+	assert(save_ok(s));
+
+	return save_exec(s, (const char *)assets_sql_property_save, "ss", p->key, p->value);
+}
+
+int
+property_load(struct property *p, struct save *s)
+{
+	assert(p);
+	assert(save_ok(s));
+
+	struct save_stmt stmt;
+	int ret;
+
+	if (save_stmt_init(s, &stmt, (const char *)assets_sql_property_load, "s", p->key) < 0)
+		return -1;
+
+	switch (save_stmt_next(&stmt, "s", p->value, sizeof (p->value))) {
+	case SAVE_STMT_DONE:
+	case SAVE_STMT_ERROR:
+		ret = -1;
+		break;
+	default:
+		ret = 0;
+	}
+
+	save_stmt_finish(&stmt);
+
+	return ret;
+}
+
+int
+property_remove(struct property *p, struct save *s)
+{
+	assert(p);
+	assert(save_ok(s));
+
+	return save_exec(s, (const char *)assets_sql_property_remove, "s", p->key);
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-rpg/rpg/property.h	Mon Oct 04 13:10:11 2021 +0200
@@ -0,0 +1,47 @@
+/*
+ * property.h -- manage game properties
+ *
+ * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef MOLKO_RPG_PROPERTY_H
+#define MOLKO_RPG_PROPERTY_H
+
+#include <core/core.h>
+
+#define PROPERTY_KEY_MAX        (64)
+#define PROPERTY_VALUE_MAX      (1024)
+
+struct save;
+
+struct property {
+	char key[PROPERTY_KEY_MAX + 1];
+	char value[PROPERTY_VALUE_MAX + 1];
+};
+
+CORE_BEGIN_DECLS
+
+int
+property_save(const struct property *, struct save *);
+
+int
+property_load(struct property *, struct save *);
+
+int
+property_remove(struct property *, struct save *);
+
+CORE_END_DECLS
+
+#endif /* !MOLKO_RPG_PROPERTY_H */

--- a/src/libmlk-rpg/rpg/save.c	Sun Oct 03 10:31:45 2021 +0200
+++ b/src/libmlk-rpg/rpg/save.c	Mon Oct 04 13:10:11 2021 +0200
@@ -30,11 +30,9 @@
 #include <core/util.h>
 
 #include <assets/sql/init.h>
-#include <assets/sql/property-get.h>
-#include <assets/sql/property-remove.h>
-#include <assets/sql/property-set.h>
 
 #include "rpg_p.h"
+#include "property.h"
 #include "save.h"
 
 #define SQL_BEGIN       "BEGIN EXCLUSIVE TRANSACTION"
@@ -67,7 +65,7 @@
 {
 	struct {
 		time_t *date;
-		struct save_property prop;
+		struct property prop;
 	} table[] = {
 		{ .date = &db->created, { .key = "molko.create-date" } },
 		{ .date = &db->updated, { .key = "molko.update-date" } },
@@ -75,7 +73,7 @@
 
 	/* Ensure create and update dates are present. */
 	for (size_t i = 0; i < UTIL_SIZE(table); ++i) {
-		if (save_get_property(db, &table[i].prop) < 0) {
+		if (property_load(&table[i].prop, db) < 0) {
 			sqlite3_close(db->handle);
 			return errorf(_("database not initialized correctly"));
 		}
@@ -209,115 +207,6 @@
 }
 
 int
-save_set_property(struct save *db, const struct save_property *prop)
-{
-	assert(db);
-	assert(prop);
-
-	sqlite3_stmt *stmt = NULL;
-
-	if (exec(db, SQL_BEGIN) < 0)
-		return -1;
-	if (sqlite3_prepare(db->handle, (const char *)assets_sql_property_set, -1, &stmt, NULL) != SQLITE_OK)
-		goto sqlite3_err;
-	if (sqlite3_bind_text(stmt, 1, prop->key, -1, NULL) != SQLITE_OK ||
-	    sqlite3_bind_text(stmt, 2, prop->value, -1, NULL) != SQLITE_OK)
-		goto sqlite3_err;
-	if (sqlite3_step(stmt) != SQLITE_DONE)
-		goto sqlite3_err;
-
-	sqlite3_finalize(stmt);
-
-	return exec(db, SQL_COMMIT);
-
-sqlite3_err:
-	errorf("%s", sqlite3_errmsg(db->handle));
-
-	if (stmt)
-		sqlite3_finalize(stmt);
-
-	exec(db, SQL_ROLLBACK);
-
-	return -1;
-}
-
-int
-save_get_property(struct save *db, struct save_property *prop)
-{
-	assert(db);
-	assert(prop);
-
-	sqlite3_stmt *stmt = NULL;
-	int ret = 0;
-
-	if (sqlite3_prepare(db->handle, (const char *)assets_sql_property_get,
-	    sizeof (assets_sql_property_get), &stmt, NULL) != SQLITE_OK)
-		goto sqlite3_err;
-	if (sqlite3_bind_text(stmt, 1, prop->key, -1, NULL) != SQLITE_OK)
-		goto sqlite3_err;
-
-	switch (sqlite3_step(stmt)) {
-	case SQLITE_DONE:
-		/* Not found. */
-		ret = errorf(_("property '%s' was not found"), prop->key);
-		break;
-	case SQLITE_ROW:
-		/* Found. */
-		strlcpy(prop->value, (const char *)sqlite3_column_text(stmt, 0),
-		    sizeof (prop->value));
-		break;
-	default:
-		/* Error. */
-		goto sqlite3_err;
-	}
-
-	sqlite3_finalize(stmt);
-
-	return ret;
-
-sqlite3_err:
-	errorf("%s", sqlite3_errmsg(db->handle));
-
-	if (stmt)
-		sqlite3_finalize(stmt);
-
-	return -1;
-}
-
-int
-save_remove_property(struct save *db, const struct save_property *prop)
-{
-	assert(db);
-	assert(prop);
-
-	sqlite3_stmt *stmt = NULL;
-
-	if (exec(db, SQL_BEGIN) < 0)
-		return -1;
-	if (sqlite3_prepare(db->handle, (const char *)assets_sql_property_remove,
-	    sizeof (assets_sql_property_remove), &stmt, NULL) != SQLITE_OK)
-		goto sqlite3_err;
-	if (sqlite3_bind_text(stmt, 1, prop->key, -1, NULL) != SQLITE_OK)
-		goto sqlite3_err;
-	if (sqlite3_step(stmt) != SQLITE_DONE)
-		goto sqlite3_err;
-
-	sqlite3_finalize(stmt);
-
-	return exec(db, SQL_COMMIT);
-
-sqlite3_err:
-	errorf("%s", sqlite3_errmsg(db->handle));
-
-	if (stmt)
-		sqlite3_finalize(stmt);
-
-	exec(db, SQL_ROLLBACK);
-
-	return -1;
-}
-
-int
 save_exec(struct save *db, const char *sql, const char *args, ...)
 {
 	assert(save_ok(db));
@@ -334,7 +223,7 @@
 	if (ret < 0)
 		return -1;
 
-	ret = save_stmt_next(&stmt, NULL) == 0;
+	ret = save_stmt_next(&stmt, NULL);
 	save_stmt_finish(&stmt);
 
 	return ret;
@@ -368,25 +257,25 @@
 	return ret;
 }
 
-int
+enum save_stmt_errno
 save_stmt_next(struct save_stmt *stmt, const char *args, ...)
 {
 	assert(stmt);
 
 	va_list ap;
-	int ret = -1;
+	enum save_stmt_errno ret = SAVE_STMT_ERROR;
 
 	switch (sqlite3_step(stmt->handle)) {
 	case SQLITE_ROW:
 		va_start(ap, args);
-
-		if (extract(stmt, args, ap))
-			ret = 1;
-
+		
+		if (extract(stmt, args, ap) == 0)
+			ret = SAVE_STMT_ROW;
+		
 		va_end(ap);
 		break;
 	case SQLITE_DONE:
-		ret = 0;
+		ret = SAVE_STMT_DONE;
 		break;
 	default:
 		break;

--- a/src/libmlk-rpg/rpg/save.h	Sun Oct 03 10:31:45 2021 +0200
+++ b/src/libmlk-rpg/rpg/save.h	Mon Oct 04 13:10:11 2021 +0200
@@ -23,9 +23,6 @@
 
 #include <core/core.h>
 
-#define SAVE_PROPERTY_KEY_MAX   (64)
-#define SAVE_PROPERTY_VALUE_MAX (1024)
-
 struct save {
 	time_t created;
 	time_t updated;
@@ -37,16 +34,17 @@
 	SAVE_MODE_WRITE
 };
 
-struct save_property {
-	char key[SAVE_PROPERTY_KEY_MAX + 1];
-	char value[SAVE_PROPERTY_VALUE_MAX + 1];
-};
-
 struct save_stmt {
 	struct save *parent;
 	void *handle;
 };
 
+enum save_stmt_errno {
+	SAVE_STMT_DONE,
+	SAVE_STMT_ROW,
+	SAVE_STMT_ERROR
+};
+
 CORE_BEGIN_DECLS
 
 int
@@ -59,15 +57,6 @@
 save_ok(const struct save *);
 
 int
-save_set_property(struct save *, const struct save_property *);
-
-int
-save_get_property(struct save *, struct save_property *);
-
-int
-save_remove_property(struct save *, const struct save_property *);
-
-int
 save_exec(struct save *, const char *, const char *, ...);
 
 void
@@ -77,7 +66,7 @@
 int
 save_stmt_init(struct save *, struct save_stmt *, const char *, const char *, ...);
 
-int
+enum save_stmt_errno
 save_stmt_next(struct save_stmt *, const char *, ...);
 
 void

--- a/tests/test-save.c	Sun Oct 03 10:31:45 2021 +0200
+++ b/tests/test-save.c	Mon Oct 04 13:10:11 2021 +0200
@@ -21,6 +21,7 @@
 #define GREATEST_USE_ABBREVS 0
 #include <greatest.h>
 
+#include <rpg/property.h>
 #include <rpg/save.h>
 
 static void
@@ -89,22 +90,22 @@
 properties_set(void)
 {
 	struct save db;
-	struct save_property prop;
+	struct property prop;
 
 	GREATEST_ASSERT(save_open_path(&db, "1.db", SAVE_MODE_WRITE) == 0);
 
 	/* Insert a new property 'state'. */
-	prop = (struct save_property){.key = "state", .value = "intro"};
-	GREATEST_ASSERT(save_set_property(&db, &prop) == 0);
-	prop = (struct save_property){.key = "state"};
-	GREATEST_ASSERT(save_get_property(&db, &prop) == 0);
+	prop = (struct property){.key = "state", .value = "intro"};
+	GREATEST_ASSERT(property_save(&prop, &db) == 0);
+	prop = (struct property){.key = "state"};
+	GREATEST_ASSERT(property_load(&prop, &db) == 0);
 	GREATEST_ASSERT_STR_EQ(prop.value, "intro");
 
 	/* Now we replace the value. */
-	prop = (struct save_property){.key = "state", .value = "map"};
-	GREATEST_ASSERT(save_set_property(&db, &prop) == 0);
-	prop = (struct save_property){.key = "state"};
-	GREATEST_ASSERT(save_get_property(&db, &prop) == 0);
+	prop = (struct property){.key = "state", .value = "map"};
+	GREATEST_ASSERT(property_save(&prop, &db) == 0);
+	prop = (struct property){.key = "state"};
+	GREATEST_ASSERT(property_load(&prop, &db) == 0);
 	GREATEST_ASSERT_STR_EQ(prop.value, "map");
 
 	save_finish(&db);
@@ -116,10 +117,10 @@
 properties_notfound(void)
 {
 	struct save db;
-	struct save_property prop = {.key = "state"};
+	struct property prop = {.key = "state"};
 
 	GREATEST_ASSERT(save_open_path(&db, "1.db", SAVE_MODE_WRITE) == 0);
-	GREATEST_ASSERT(save_get_property(&db, &prop) < 0);
+	GREATEST_ASSERT(property_load(&prop, &db) < 0);
 	GREATEST_ASSERT_STR_EQ(prop.value, "");
 
 	GREATEST_PASS();
@@ -129,17 +130,17 @@
 properties_remove(void)
 {
 	struct save db;
-	struct save_property prop;
+	struct property prop;
 
 	GREATEST_ASSERT(save_open_path(&db, "1.db", SAVE_MODE_WRITE) == 0);
 
 	/* Insert a new property 'initialized'. */
-	prop = (struct save_property){.key = "state", .value = "intro"};
-	GREATEST_ASSERT(save_set_property(&db, &prop) == 0);
-	prop = (struct save_property){.key = "state"};
-	GREATEST_ASSERT(save_remove_property(&db, &prop) == 0);
-	prop = (struct save_property){.key = "state"};
-	GREATEST_ASSERT(save_get_property(&db, &prop) < 0);
+	prop = (struct property){.key = "state", .value = "intro"};
+	GREATEST_ASSERT(property_save(&prop, &db) == 0);
+	prop = (struct property){.key = "state"};
+	GREATEST_ASSERT(property_remove(&prop, &db) == 0);
+	prop = (struct property){.key = "state"};
+	GREATEST_ASSERT(property_load(&prop, &db) < 0);
 	GREATEST_ASSERT_STR_EQ(prop.value, "");
 
 	GREATEST_PASS();