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tests: Check non-matching cases for fdt_node_check_compatible() 

The current tests for fdt_node_check_compatible() test that it returns true
on several matching cases, but don't test that it actually returns false on
some non-matching cases, which isn't great coverage.  Add some basic tests
to address that.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
main
David Gibson 2017-10-29 22:56:54 +01:00
parent bba26a5291
commit cc392f0890
1 changed files with 19 additions and 0 deletions
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19
tests/node_check_compatible.c
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@ -45,6 +45,23 @@ static void check_compatible(const void *fdt, const char *path,
FAIL("%s is not compatible with \"%s\"", path, compat);
}

static void check_not_compatible(const void *fdt, const char *path,
const char *compat)
{
int offset, err;

offset = fdt_path_offset(fdt, path);
if (offset < 0)
FAIL("fdt_path_offset(%s): %s", path, fdt_strerror(offset));

err = fdt_node_check_compatible(fdt, offset, compat);
if (err < 0)
FAIL("fdt_node_check_compatible(%s): %s", path,
fdt_strerror(err));
if (err == 0)
FAIL("%s is incorrectly compatible with \"%s\"", path, compat);
}

int main(int argc, char *argv[])
{
void *fdt;
@ -55,8 +72,10 @@ int main(int argc, char *argv[])
check_compatible(fdt, "/", "test_tree1");
check_compatible(fdt, "/subnode@1/subsubnode", "subsubnode1");
check_compatible(fdt, "/subnode@1/subsubnode", "subsubnode");
check_not_compatible(fdt, "/subnode@1/subsubnode", "subsubnode2");
check_compatible(fdt, "/subnode@2/subsubnode", "subsubnode2");
check_compatible(fdt, "/subnode@2/subsubnode", "subsubnode");
check_not_compatible(fdt, "/subnode@2/subsubnode", "subsubnode1");

PASS();
}