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kunit: Add ability to filter attributes
Add filtering of test attributes. Users can filter tests using the module_param called "filter". Filters are imputed in the format: <attribute_name><operation><value> Example: kunit.filter="speed>slow" Operations include: >, <, >=, <=, !=, and =. These operations will act the same for attributes of the same type but may not between types. Note multiple filters can be inputted by separating them with a comma. Example: kunit.filter="speed=slow, module!=example" Since both suites and test cases can have attributes, there may be conflicts. The process of filtering follows these rules: - Filtering always operates at a per-test level. - If a test has an attribute set, then the test's value is filtered on. - Otherwise, the value falls back to the suite's value. - If neither are set, the attribute has a global "default" value, which is used. Filtered tests will not be run or show in output. The tests can instead be skipped using the configurable option "kunit.filter_action=skip". Note the default settings for running tests remains unfiltered. Finally, add "filter" methods for the speed and module attributes to parse and compare attribute values. Note this filtering functionality will be added to kunit.py in the next patch. Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Rae Moar <rmoar@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Rae Moar
Shuah Khan
parent
a00a727091
commit
529534e8cb
@ -9,6 +9,20 @@
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#ifndef _KUNIT_ATTRIBUTES_H
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#define _KUNIT_ATTRIBUTES_H
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/*
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* struct kunit_attr_filter - representation of attributes filter with the
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* attribute object and string input
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*/
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struct kunit_attr_filter {
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struct kunit_attr *attr;
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char *input;
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};
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/*
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* Returns the name of the filter's attribute.
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*/
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const char *kunit_attr_filter_name(struct kunit_attr_filter filter);
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/*
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* Print all test attributes for a test case or suite.
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* Output format for test cases: "# <test_name>.<attribute>: <value>"
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@ -16,4 +30,21 @@
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*/
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void kunit_print_attr(void *test_or_suite, bool is_test, unsigned int test_level);
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/*
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* Returns the number of fitlers in input.
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*/
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int kunit_get_filter_count(char *input);
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/*
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* Parse attributes filter input and return an objects containing the
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* attribute object and the string input of the next filter.
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*/
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struct kunit_attr_filter kunit_next_attr_filter(char **filters, int *err);
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/*
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* Returns a copy of the suite containing only tests that pass the filter.
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*/
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struct kunit_suite *kunit_filter_attr_tests(const struct kunit_suite *const suite,
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struct kunit_attr_filter filter, char *action, int *err);
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#endif /* _KUNIT_ATTRIBUTES_H */
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@ -67,6 +67,104 @@ static const char *attr_string_to_string(void *attr, bool *to_free)
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return (char *) attr;
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}
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/* Filter Methods */
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static const char op_list[] = "<>!=";
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/*
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* Returns whether the inputted integer value matches the filter given
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* by the operation string and inputted integer.
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*/
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static int int_filter(long val, const char *op, int input, int *err)
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{
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if (!strncmp(op, "<=", 2))
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return (val <= input);
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else if (!strncmp(op, ">=", 2))
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return (val >= input);
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else if (!strncmp(op, "!=", 2))
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return (val != input);
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else if (!strncmp(op, ">", 1))
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return (val > input);
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else if (!strncmp(op, "<", 1))
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return (val < input);
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else if (!strncmp(op, "=", 1))
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return (val == input);
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*err = -EINVAL;
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pr_err("kunit executor: invalid filter operation: %s\n", op);
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return false;
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}
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/*
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* Returns whether the inputted enum value "attr" matches the filter given
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* by the input string. Note: the str_list includes the corresponding string
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* list to the enum values.
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*/
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static int attr_enum_filter(void *attr, const char *input, int *err,
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const char * const str_list[], int max)
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{
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int i, j, input_int;
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long test_val = (long)attr;
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const char *input_val = NULL;
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for (i = 0; input[i]; i++) {
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if (!strchr(op_list, input[i])) {
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input_val = input + i;
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break;
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}
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}
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if (!input_val) {
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*err = -EINVAL;
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pr_err("kunit executor: filter value not found: %s\n", input);
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return false;
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}
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for (j = 0; j <= max; j++) {
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if (!strcmp(input_val, str_list[j]))
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input_int = j;
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}
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if (!input_int) {
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*err = -EINVAL;
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pr_err("kunit executor: invalid filter input: %s\n", input);
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return false;
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}
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return int_filter(test_val, input, input_int, err);
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}
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static int attr_speed_filter(void *attr, const char *input, int *err)
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{
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return attr_enum_filter(attr, input, err, speed_str_list, KUNIT_SPEED_MAX);
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}
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/*
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* Returns whether the inputted string value (attr) matches the filter given
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* by the input string.
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*/
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static int attr_string_filter(void *attr, const char *input, int *err)
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{
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char *str = attr;
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if (!strncmp(input, "<", 1)) {
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*err = -EINVAL;
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pr_err("kunit executor: invalid filter input: %s\n", input);
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return false;
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} else if (!strncmp(input, ">", 1)) {
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*err = -EINVAL;
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pr_err("kunit executor: invalid filter input: %s\n", input);
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return false;
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} else if (!strncmp(input, "!=", 2)) {
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return (strcmp(input + 2, str) != 0);
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} else if (!strncmp(input, "=", 1)) {
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return (strcmp(input + 1, str) == 0);
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}
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*err = -EINVAL;
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pr_err("kunit executor: invalid filter operation: %s\n", input);
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return false;
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}
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/* Get Attribute Methods */
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static void *attr_speed_get(void *test_or_suite, bool is_test)
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@ -99,6 +197,7 @@ static struct kunit_attr kunit_attr_list[] = {
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.name = "speed",
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.get_attr = attr_speed_get,
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.to_string = attr_speed_to_string,
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.filter = attr_speed_filter,
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.attr_default = (void *)KUNIT_SPEED_NORMAL,
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.print = PRINT_ALWAYS,
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},
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@ -106,6 +205,7 @@ static struct kunit_attr kunit_attr_list[] = {
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.name = "module",
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.get_attr = attr_module_get,
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.to_string = attr_string_to_string,
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.filter = attr_string_filter,
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.attr_default = (void *)"",
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.print = PRINT_SUITE,
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}
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@ -113,6 +213,11 @@ static struct kunit_attr kunit_attr_list[] = {
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/* Helper Functions to Access Attributes */
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const char *kunit_attr_filter_name(struct kunit_attr_filter filter)
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{
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return filter.attr->name;
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}
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void kunit_print_attr(void *test_or_suite, bool is_test, unsigned int test_level)
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{
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int i;
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@ -145,3 +250,169 @@ void kunit_print_attr(void *test_or_suite, bool is_test, unsigned int test_level
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}
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}
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}
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/* Helper Functions to Filter Attributes */
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int kunit_get_filter_count(char *input)
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{
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int i, comma_index, count = 0;
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for (i = 0; input[i]; i++) {
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if (input[i] == ',') {
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if ((i - comma_index) > 1)
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count++;
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comma_index = i;
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}
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}
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if ((i - comma_index) > 0)
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count++;
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return count;
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}
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struct kunit_attr_filter kunit_next_attr_filter(char **filters, int *err)
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{
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struct kunit_attr_filter filter = {};
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int i, j, comma_index, new_start_index;
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int op_index = -1, attr_index = -1;
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char op;
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char *input = *filters;
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/* Parse input until operation */
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for (i = 0; input[i]; i++) {
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if (op_index < 0 && strchr(op_list, input[i])) {
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op_index = i;
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} else if (!comma_index && input[i] == ',') {
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comma_index = i;
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} else if (comma_index && input[i] != ' ') {
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new_start_index = i;
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break;
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}
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}
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if (op_index <= 0) {
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*err = -EINVAL;
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pr_err("kunit executor: filter operation not found: %s\n", input);
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return filter;
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}
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/* Temporarily set operator to \0 character. */
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op = input[op_index];
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input[op_index] = '\0';
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/* Find associated kunit_attr object */
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for (j = 0; j < ARRAY_SIZE(kunit_attr_list); j++) {
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if (!strcmp(input, kunit_attr_list[j].name)) {
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attr_index = j;
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break;
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}
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}
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input[op_index] = op;
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if (attr_index < 0) {
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*err = -EINVAL;
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pr_err("kunit executor: attribute not found: %s\n", input);
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} else {
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filter.attr = &kunit_attr_list[attr_index];
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}
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if (comma_index) {
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input[comma_index] = '\0';
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filter.input = input + op_index;
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input = input + new_start_index;
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} else {
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filter.input = input + op_index;
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input = NULL;
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}
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*filters = input;
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return filter;
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}
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struct kunit_suite *kunit_filter_attr_tests(const struct kunit_suite *const suite,
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struct kunit_attr_filter filter, char *action, int *err)
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{
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int n = 0;
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struct kunit_case *filtered, *test_case;
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struct kunit_suite *copy;
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void *suite_val, *test_val;
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bool suite_result, test_result, default_result, result;
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/* Allocate memory for new copy of suite and list of test cases */
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copy = kmemdup(suite, sizeof(*copy), GFP_KERNEL);
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if (!copy)
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return ERR_PTR(-ENOMEM);
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kunit_suite_for_each_test_case(suite, test_case) { n++; }
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filtered = kcalloc(n + 1, sizeof(*filtered), GFP_KERNEL);
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if (!filtered) {
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kfree(copy);
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return ERR_PTR(-ENOMEM);
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}
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n = 0;
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/* Save filtering result on default value */
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default_result = filter.attr->filter(filter.attr->attr_default, filter.input, err);
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if (*err) {
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kfree(copy);
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kfree(filtered);
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return NULL;
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}
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/* Save suite attribute value and filtering result on that value */
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suite_val = filter.attr->get_attr((void *)suite, false);
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suite_result = filter.attr->filter(suite_val, filter.input, err);
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if (*err) {
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kfree(copy);
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kfree(filtered);
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return NULL;
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}
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/* For each test case, save test case if passes filtering. */
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kunit_suite_for_each_test_case(suite, test_case) {
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test_val = filter.attr->get_attr((void *) test_case, true);
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test_result = filter.attr->filter(filter.attr->get_attr(test_case, true),
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filter.input, err);
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if (*err) {
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kfree(copy);
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kfree(filtered);
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return NULL;
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}
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/*
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* If attribute value of test case is set, filter on that value.
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* If not, filter on suite value if set. If not, filter on
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* default value.
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*/
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result = false;
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if (test_val) {
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if (test_result)
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result = true;
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} else if (suite_val) {
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if (suite_result)
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result = true;
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} else if (default_result) {
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result = true;
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}
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if (result) {
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filtered[n++] = *test_case;
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} else if (action && strcmp(action, "skip") == 0) {
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test_case->status = KUNIT_SKIPPED;
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filtered[n++] = *test_case;
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}
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}
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if (n == 0) {
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kfree(copy);
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kfree(filtered);
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return NULL;
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}
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copy->test_cases = filtered;
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return copy;
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}
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@ -17,6 +17,8 @@ extern struct kunit_suite * const __kunit_suites_end[];
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static char *filter_glob_param;
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static char *action_param;
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static char *filter_param;
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static char *filter_action_param;
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module_param_named(filter_glob, filter_glob_param, charp, 0);
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MODULE_PARM_DESC(filter_glob,
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@ -27,15 +29,23 @@ MODULE_PARM_DESC(action,
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"<none>: run the tests like normal\n"
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"'list' to list test names instead of running them.\n"
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"'list_attr' to list test names and attributes instead of running them.\n");
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module_param_named(filter, filter_param, charp, 0);
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MODULE_PARM_DESC(filter,
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"Filter which KUnit test suites/tests run at boot-time using attributes, e.g. speed>slow");
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module_param_named(filter_action, filter_action_param, charp, 0);
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MODULE_PARM_DESC(filter_action,
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"Changes behavior of filtered tests using attributes, valid values are:\n"
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"<none>: do not run filtered tests as normal\n"
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"'skip': skip all filtered tests instead so tests will appear in output\n");
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/* glob_match() needs NULL terminated strings, so we need a copy of filter_glob_param. */
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struct kunit_test_filter {
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struct kunit_glob_filter {
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char *suite_glob;
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char *test_glob;
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};
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/* Split "suite_glob.test_glob" into two. Assumes filter_glob is not empty. */
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static void kunit_parse_filter_glob(struct kunit_test_filter *parsed,
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static void kunit_parse_glob_filter(struct kunit_glob_filter *parsed,
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const char *filter_glob)
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{
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const int len = strlen(filter_glob);
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@ -57,7 +67,7 @@ static void kunit_parse_filter_glob(struct kunit_test_filter *parsed,
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/* Create a copy of suite with only tests that match test_glob. */
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static struct kunit_suite *
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kunit_filter_tests(const struct kunit_suite *const suite, const char *test_glob)
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kunit_filter_glob_tests(const struct kunit_suite *const suite, const char *test_glob)
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{
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int n = 0;
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struct kunit_case *filtered, *test_case;
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@ -111,12 +121,15 @@ static void kunit_free_suite_set(struct suite_set suite_set)
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static struct suite_set kunit_filter_suites(const struct suite_set *suite_set,
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const char *filter_glob,
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char *filters,
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char *filter_action,
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int *err)
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{
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int i;
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struct kunit_suite **copy, *filtered_suite;
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int i, j, k, filter_count;
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struct kunit_suite **copy, *filtered_suite, *new_filtered_suite;
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struct suite_set filtered;
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struct kunit_test_filter filter;
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struct kunit_glob_filter parsed_glob;
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struct kunit_attr_filter *parsed_filters;
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const size_t max = suite_set->end - suite_set->start;
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@ -127,17 +140,52 @@ static struct suite_set kunit_filter_suites(const struct suite_set *suite_set,
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return filtered;
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}
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kunit_parse_filter_glob(&filter, filter_glob);
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if (filter_glob)
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kunit_parse_glob_filter(&parsed_glob, filter_glob);
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/* Parse attribute filters */
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if (filters) {
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filter_count = kunit_get_filter_count(filters);
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parsed_filters = kcalloc(filter_count + 1, sizeof(*parsed_filters), GFP_KERNEL);
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for (j = 0; j < filter_count; j++)
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parsed_filters[j] = kunit_next_attr_filter(&filters, err);
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if (*err)
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return filtered;
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}
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for (i = 0; &suite_set->start[i] != suite_set->end; i++) {
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if (!glob_match(filter.suite_glob, suite_set->start[i]->name))
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continue;
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filtered_suite = kunit_filter_tests(suite_set->start[i], filter.test_glob);
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if (IS_ERR(filtered_suite)) {
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*err = PTR_ERR(filtered_suite);
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return filtered;
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filtered_suite = suite_set->start[i];
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if (filter_glob) {
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if (!glob_match(parsed_glob.suite_glob, filtered_suite->name))
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continue;
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filtered_suite = kunit_filter_glob_tests(filtered_suite,
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parsed_glob.test_glob);
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if (IS_ERR(filtered_suite)) {
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*err = PTR_ERR(filtered_suite);
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return filtered;
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}
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}
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if (filter_count) {
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for (k = 0; k < filter_count; k++) {
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new_filtered_suite = kunit_filter_attr_tests(filtered_suite,
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parsed_filters[k], filter_action, err);
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/* Free previous copy of suite */
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if (k > 0 || filter_glob)
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kfree(filtered_suite);
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filtered_suite = new_filtered_suite;
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||||
|
||||
if (*err)
|
||||
return filtered;
|
||||
if (IS_ERR(filtered_suite)) {
|
||||
*err = PTR_ERR(filtered_suite);
|
||||
return filtered;
|
||||
}
|
||||
if (!filtered_suite)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!filtered_suite)
|
||||
continue;
|
||||
|
||||
@ -145,8 +193,14 @@ static struct suite_set kunit_filter_suites(const struct suite_set *suite_set,
|
||||
}
|
||||
filtered.end = copy;
|
||||
|
||||
kfree(filter.suite_glob);
|
||||
kfree(filter.test_glob);
|
||||
if (filter_glob) {
|
||||
kfree(parsed_glob.suite_glob);
|
||||
kfree(parsed_glob.test_glob);
|
||||
}
|
||||
|
||||
if (filter_count)
|
||||
kfree(parsed_filters);
|
||||
|
||||
return filtered;
|
||||
}
|
||||
|
||||
@ -206,8 +260,9 @@ int kunit_run_all_tests(void)
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (filter_glob_param) {
|
||||
suite_set = kunit_filter_suites(&suite_set, filter_glob_param, &err);
|
||||
if (filter_glob_param || filter_param) {
|
||||
suite_set = kunit_filter_suites(&suite_set, filter_glob_param,
|
||||
filter_param, filter_action_param, &err);
|
||||
if (err) {
|
||||
pr_err("kunit executor: error filtering suites: %d\n", err);
|
||||
goto out;
|
||||
@ -223,7 +278,7 @@ int kunit_run_all_tests(void)
|
||||
else
|
||||
pr_err("kunit executor: unknown action '%s'\n", action_param);
|
||||
|
||||
if (filter_glob_param) { /* a copy was made of each suite */
|
||||
if (filter_glob_param || filter_param) { /* a copy was made of each suite */
|
||||
kunit_free_suite_set(suite_set);
|
||||
}
|
||||
|
||||
|
||||
@ -24,15 +24,15 @@ static struct kunit_case dummy_test_cases[] = {
|
||||
|
||||
static void parse_filter_test(struct kunit *test)
|
||||
{
|
||||
struct kunit_test_filter filter = {NULL, NULL};
|
||||
struct kunit_glob_filter filter = {NULL, NULL};
|
||||
|
||||
kunit_parse_filter_glob(&filter, "suite");
|
||||
kunit_parse_glob_filter(&filter, "suite");
|
||||
KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite");
|
||||
KUNIT_EXPECT_FALSE(test, filter.test_glob);
|
||||
kfree(filter.suite_glob);
|
||||
kfree(filter.test_glob);
|
||||
|
||||
kunit_parse_filter_glob(&filter, "suite.test");
|
||||
kunit_parse_glob_filter(&filter, "suite.test");
|
||||
KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite");
|
||||
KUNIT_EXPECT_STREQ(test, filter.test_glob, "test");
|
||||
kfree(filter.suite_glob);
|
||||
@ -50,7 +50,7 @@ static void filter_suites_test(struct kunit *test)
|
||||
subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases);
|
||||
|
||||
/* Want: suite1, suite2, NULL -> suite2, NULL */
|
||||
got = kunit_filter_suites(&suite_set, "suite2", &err);
|
||||
got = kunit_filter_suites(&suite_set, "suite2", NULL, NULL, &err);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
|
||||
KUNIT_ASSERT_EQ(test, err, 0);
|
||||
kfree_at_end(test, got.start);
|
||||
@ -74,7 +74,7 @@ static void filter_suites_test_glob_test(struct kunit *test)
|
||||
subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases);
|
||||
|
||||
/* Want: suite1, suite2, NULL -> suite2 (just test1), NULL */
|
||||
got = kunit_filter_suites(&suite_set, "suite2.test2", &err);
|
||||
got = kunit_filter_suites(&suite_set, "suite2.test2", NULL, NULL, &err);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
|
||||
KUNIT_ASSERT_EQ(test, err, 0);
|
||||
kfree_at_end(test, got.start);
|
||||
@ -100,7 +100,7 @@ static void filter_suites_to_empty_test(struct kunit *test)
|
||||
subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases);
|
||||
subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases);
|
||||
|
||||
got = kunit_filter_suites(&suite_set, "not_found", &err);
|
||||
got = kunit_filter_suites(&suite_set, "not_found", NULL, NULL, &err);
|
||||
KUNIT_ASSERT_EQ(test, err, 0);
|
||||
kfree_at_end(test, got.start); /* just in case */
|
||||
|
||||
|
||||
@ -613,18 +613,22 @@ int kunit_run_tests(struct kunit_suite *suite)
|
||||
kunit_suite_for_each_test_case(suite, test_case) {
|
||||
struct kunit test = { .param_value = NULL, .param_index = 0 };
|
||||
struct kunit_result_stats param_stats = { 0 };
|
||||
test_case->status = KUNIT_SKIPPED;
|
||||
|
||||
kunit_init_test(&test, test_case->name, test_case->log);
|
||||
|
||||
if (!test_case->generate_params) {
|
||||
if (test_case->status == KUNIT_SKIPPED) {
|
||||
/* Test marked as skip */
|
||||
test.status = KUNIT_SKIPPED;
|
||||
kunit_update_stats(¶m_stats, test.status);
|
||||
} else if (!test_case->generate_params) {
|
||||
/* Non-parameterised test. */
|
||||
test_case->status = KUNIT_SKIPPED;
|
||||
kunit_run_case_catch_errors(suite, test_case, &test);
|
||||
kunit_update_stats(¶m_stats, test.status);
|
||||
} else {
|
||||
/* Get initial param. */
|
||||
param_desc[0] = '\0';
|
||||
test.param_value = test_case->generate_params(NULL, param_desc);
|
||||
test_case->status = KUNIT_SKIPPED;
|
||||
kunit_log(KERN_INFO, &test, KUNIT_SUBTEST_INDENT KUNIT_SUBTEST_INDENT
|
||||
"KTAP version 1\n");
|
||||
kunit_log(KERN_INFO, &test, KUNIT_SUBTEST_INDENT KUNIT_SUBTEST_INDENT
|
||||
|
||||
Loading…
Reference in New Issue
Block a user