dm: test: Add a way to run SPL tests
Add a -u flag for U-Boot SPL which requests that unit tests be run. To
make this work, export dm_test_main() and update it to skip test features
that are not used with of-platdata.
To run the tests:
$ spl/u-boot-spl -u
U-Boot SPL 2020.10-rc5 (Oct 01 2020 - 07:35:39 -0600)
Running 0 driver model tests
Failures: 0
At present there are no SPL unit tests.
Note that there is one wrinkle with these tests. SPL has limited memory
available for allocation. Also malloc_simple does not free memory
(free() is a nop) and running tests repeatedly causes driver-model to
reinit multiple times and allocate memory. Therefore it is not possible
to run more than a few tests at a time. One solution is to increase the
amount of malloc space in sandbox_spl. This is not a problem for pytest,
since it runs each test individually, so for now this is left as is.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/cpu/spl.c b/arch/sandbox/cpu/spl.c
index 7ab8919..48fd126 100644
--- a/arch/sandbox/cpu/spl.c
+++ b/arch/sandbox/cpu/spl.c
@@ -12,6 +12,7 @@
#include <spl.h>
#include <asm/spl.h>
#include <asm/state.h>
+#include <test/test.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -67,6 +68,13 @@
uclass_next_device(&dev))
;
}
+
+ if (state->run_unittests) {
+ int ret;
+
+ ret = dm_test_main(NULL);
+ /* continue execution into U-Boot */
+ }
}
void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index c6a2bbe..f5e104b 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -374,6 +374,15 @@
}
SANDBOX_CMDLINE_OPT(show_of_platdata, 0, "Show of-platdata in SPL");
+static int sandbox_cmdline_cb_unittests(struct sandbox_state *state,
+ const char *arg)
+{
+ state->run_unittests = true;
+
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(unittests, 'u', 0, "Run unit tests");
+
static void setup_ram_buf(struct sandbox_state *state)
{
/* Zero the RAM buffer if we didn't read it, to keep valgrind happy */
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index 1bfad30..f828d9d 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -92,6 +92,7 @@
int default_log_level; /* Default log level for sandbox */
bool show_of_platdata; /* Show of-platdata in SPL */
bool ram_buf_read; /* true if we read the RAM buffer */
+ bool run_unittests; /* Run unit tests */
/* Pointer to information for each SPI bus/cs */
struct sandbox_spi_info spi[CONFIG_SANDBOX_SPI_MAX_BUS]
diff --git a/include/test/test.h b/include/test/test.h
index 67c7d69..03e2929 100644
--- a/include/test/test.h
+++ b/include/test/test.h
@@ -94,4 +94,15 @@
TEST_DEVRES_SIZE3 = 37,
};
+/**
+ * dm_test_main() - Run driver model tests
+ *
+ * Run all the available driver model tests, or a selection
+ *
+ * @test_name: Name of single test to run (e.g. "dm_test_fdt_pre_reloc" or just
+ * "fdt_pre_reloc"), or NULL to run all
+ * @return 0 if all tests passed, 1 if not
+ */
+int dm_test_main(const char *test_name);
+
#endif /* __TEST_TEST_H */
diff --git a/test/dm/test-main.c b/test/dm/test-main.c
index 5560572..9d22df8 100644
--- a/test/dm/test-main.c
+++ b/test/dm/test-main.c
@@ -127,7 +127,7 @@
return !strstr(fname, "video") || strstr(test->name, "video_base");
}
-static int dm_test_main(const char *test_name)
+int dm_test_main(const char *test_name)
{
struct unit_test *tests = ll_entry_start(struct unit_test, dm_test);
const int n_ents = ll_entry_count(struct unit_test, dm_test);