[flashrom-gerrit] Change in flashrom[master]: tests/linux_spi: Validate param file path

[Edward O'Callaghan (Code Review)]

Edward O'Callaghan has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/62319 )

Change subject: tests/linux_spi: Validate param file path
......................................................................

tests/linux_spi: Validate param file path

BUG=b:217629892,b:215255210
TEST=`ninja test`.

Change-Id: If5d24c65f291c53a35509fea5d2f5b3fdb51c306
Signed-off-by: Edward O'Callaghan 
---
M tests/init_shutdown.c
1 file changed, 23 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/19/62319/1

diff --git a/tests/init_shutdown.c b/tests/init_shutdown.c
index 5221a16..4fb93b2 100644
--- a/tests/init_shutdown.c
+++ b/tests/init_shutdown.c
@@ -36,6 +36,23 @@
    free(param_dup);
 }

+struct default_io_mock_state {
+	unsigned int noc;
+	const char *paths[2]; // no. of subsequent paths to check.
+	int flags;
+	int fd;
+};
+
+static int default_open(void *state, const char *pathname, int flags)
+{
+	struct default_io_mock_state * io_state = state;
+	const char *path = io_state->paths[io_state->noc];
+	io_state->noc++; // proceed to the next path upon next call.
+	assert_string_equal(pathname, path);
+	assert_int_equal(flags & io_state->flags, io_state->flags);
+	return io_state->fd;
+}
+
 void dummy_init_and_shutdown_test_success(void **state)
 {
 #if CONFIG_DUMMY == 1
@@ -299,8 +316,14 @@
     * Specifically, it is reading the buffer size from sysfs.
     */
 #if CONFIG_LINUX_SPI == 1
+	static struct default_io_mock_state data = {
+		.paths	= {"/dev/null"},
+		.noc	= 0,
+	};
    const struct io_mock linux_spi_io = {
    	.fgets	= linux_spi_fgets,
+		.open = default_open,
+		.state	= &data,
    };

io_mock_register(&linux_spi_io);