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

[Anastasia Klimchuk (Code Review)]

Anastasia Klimchuk has uploaded this change for review. ( 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 it worked before: my understanding is that real libusb_init was
called for dediprog? Looks like it worked by coincidence.

BUG=b:181803212
TEST=builds and ninja test

Change-Id: I51c9cb96db1afb3298f4d098df96509d3cb3c046
Signed-off-by: Anastasia Klimchuk 
---
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(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/17/57917/1

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 3ef61a5..237238c 100644
--- a/tests/io_mock.h
+++ b/tests/io_mock.h
@@ -75,6 +75,7 @@
    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 955f3bf..9179258 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -58,6 +58,7 @@
   '-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',