Change in flashrom[master]: tests: Add wrap for libusb_init and use it in dediprog test

[Nico Huber (Code Review)]

Nico Huber has submitted this change. ( https://review.coreboot.org/c/flashrom/+/57917 )

Change subject: tests: Add wrap for libusb_init and use it in dediprog test
......................................................................

tests: Add wrap for libusb_init and use it in dediprog test

Missing wrap for libusb_init has been discovered while working
on the test for raiden_debug_spi. Both dediprog (existing test) and
raiden_debug_spi (new test, see later in this chain) are using
libusb_init, so it definitely needs to be wrapped and added to io_mock.

Why tests worked before, without the wrap: my understanding is that
real libusb_init was called for dediprog test? Given that tests
definitely should not call any real libusb functions, wrap is needed.

BUG=b:181803212
TEST=builds and ninja test

Change-Id: I51c9cb96db1afb3298f4d098df96509d3cb3c046
Signed-off-by: Anastasia Klimchuk 
Reviewed-on: https://review.coreboot.org/c/flashrom/+/57917
Tested-by: build bot (Jenkins) 
Reviewed-by: Nico Huber 
---
M tests/init_shutdown.c
M tests/io_mock.h
M tests/libusb_wraps.c
M tests/meson.build
4 files changed, 18 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Nico Huber: Looks good to me, approved

diff --git a/tests/init_shutdown.c b/tests/init_shutdown.c
index 03e888f..e64e58c 100644
--- a/tests/init_shutdown.c
+++ b/tests/init_shutdown.c
@@ -54,6 +54,13 @@
 #endif
 }

+
+int dediprog_libusb_init(void *state, libusb_context **ctx)
+{
+	*ctx = not_null();
+	return 0;
+}
+
 int dediprog_libusb_control_transfer(void *state,
    				libusb_device_handle *devh,
    				uint8_t bmRequestType,
@@ -75,6 +82,7 @@
 {
 #if CONFIG_DEDIPROG == 1
    const struct io_mock dediprog_io = {
+		.libusb_init = dediprog_libusb_init,
    	.libusb_control_transfer = dediprog_libusb_control_transfer,
    };

diff --git a/tests/io_mock.h b/tests/io_mock.h
index 7c235d8..0bee6ca 100644
--- a/tests/io_mock.h
+++ b/tests/io_mock.h
@@ -70,6 +70,7 @@
    unsigned int (*inl)(void *state, unsigned short port);

/* USB I/O */
+	int (*libusb_init)(void *state, libusb_context **ctx);
    int (*libusb_control_transfer)(void *state,
    				libusb_device_handle *devh,
    				uint8_t bmRequestType,
diff --git a/tests/libusb_wraps.c b/tests/libusb_wraps.c
index 94ef652..978108e 100644
--- a/tests/libusb_wraps.c
+++ b/tests/libusb_wraps.c
@@ -23,6 +23,14 @@
    return not_null();
 }

+int __wrap_libusb_init(libusb_context **ctx)
+{
+	LOG_ME;
+	if (get_io() && get_io()->libusb_init)
+		return get_io()->libusb_init(get_io()->state, ctx);
+	return 0;
+}
+
 int __wrap_libusb_set_configuration(libusb_device_handle *devh, int config)
 {
    LOG_ME;
diff --git a/tests/meson.build b/tests/meson.build
index c55c5d2..30b1e78 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -64,6 +64,7 @@
   '-Wl,--wrap=test_outl',
   '-Wl,--wrap=test_inl',
   '-Wl,--wrap=usb_dev_get_by_vid_pid_number',
+  '-Wl,--wrap=libusb_init',
   '-Wl,--wrap=libusb_set_configuration',
   '-Wl,--wrap=libusb_claim_interface',
   '-Wl,--wrap=libusb_control_transfer',

4 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.