test: Add a test for log filter-*

This exercises a few success and failure modes of the log filter-*
commands. log filter-list is not tested because it's purely informational.
I don't think there's a good way to test it except by testing if the output
of the command exactly matches a sample run.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

include/test/log.h

@@ -14,5 +14,6 @@
 
 /* Declare a new logging test */
 #define LOG_TEST(_name) UNIT_TEST(_name, 0, log_test)
+#define LOG_TEST_FLAGS(_name, _flags) UNIT_TEST(_name, _flags, log_test)
 
 #endif /* __TEST_LOG_H__ */

test/log/Makefile

@@ -3,6 +3,7 @@
 # Copyright (c) 2017 Google, Inc
 
 obj-$(CONFIG_LOG_TEST) += log_test.o
+obj-$(CONFIG_CMD_LOG) += log_filter.o
 
 ifdef CONFIG_UT_LOG
 

test/log/log_filter.c

@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
+ */
+
+#include <common.h>
+#include <console.h>
+#include <log.h>
+#include <test/log.h>
+#include <test/ut.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Test invalid options */
+static int log_test_filter_invalid(struct unit_test_state *uts)
+{
+	ut_asserteq(1, run_command("log filter-add -AD", 0));
+	ut_asserteq(1, run_command("log filter-add -l1 -L1", 0));
+	ut_asserteq(1, run_command("log filter-add -l1 -L1", 0));
+	ut_asserteq(1, run_command("log filter-add -lfoo", 0));
+	ut_asserteq(1, run_command("log filter-add -cfoo", 0));
+	ut_asserteq(1, run_command("log filter-add -ccore -ccore -ccore -ccore "
+				   "-ccore -ccore", 0));
+
+	return 0;
+}
+LOG_TEST_FLAGS(log_test_filter_invalid, UT_TESTF_CONSOLE_REC);
+
+/* Test adding and removing filters */
+static int log_test_filter(struct unit_test_state *uts)
+{
+	bool any_found = false;
+	bool filt1_found = false;
+	bool filt2_found = false;
+	char cmd[32];
+	struct log_filter *filt;
+	struct log_device *ldev;
+	ulong filt1, filt2;
+
+#define create_filter(args, filter_num) do {\
+	ut_assertok(console_record_reset_enable()); \
+	ut_assertok(run_command("log filter-add -p " args, 0)); \
+	ut_assert_skipline(); \
+	ut_assertok(strict_strtoul(uts->actual_str, 10, &(filter_num))); \
+	ut_assert_console_end(); \
+} while (0)
+
+	create_filter("", filt1);
+	create_filter("-DL warning -cmmc -cspi -ffile", filt2);
+
+	ldev = log_device_find_by_name("console");
+	ut_assertnonnull(ldev);
+	list_for_each_entry(filt, &ldev->filter_head, sibling_node) {
+		if (filt->filter_num == filt1) {
+			filt1_found = true;
+			ut_asserteq(0, filt->flags);
+			ut_asserteq(LOGL_MAX, filt->level);
+			ut_assertnull(filt->file_list);
+		} else if (filt->filter_num == filt2) {
+			filt2_found = true;
+			ut_asserteq(LOGFF_HAS_CAT | LOGFF_DENY |
+				    LOGFF_LEVEL_MIN, filt->flags);
+			ut_asserteq(true, log_has_cat(filt->cat_list,
+						      log_uc_cat(UCLASS_MMC)));
+			ut_asserteq(true, log_has_cat(filt->cat_list,
+						      log_uc_cat(UCLASS_SPI)));
+			ut_asserteq(LOGL_WARNING, filt->level);
+			ut_asserteq_str("file", filt->file_list);
+		}
+	}
+	ut_asserteq(true, filt1_found);
+	ut_asserteq(true, filt2_found);
+
+#define remove_filter(filter_num) do { \
+	ut_assertok(console_record_reset_enable()); \
+	snprintf(cmd, sizeof(cmd), "log filter-remove %lu", filter_num); \
+	ut_assertok(run_command(cmd, 0)); \
+	ut_assert_console_end(); \
+} while (0)
+
+	remove_filter(filt1);
+	remove_filter(filt2);
+
+	filt1_found = false;
+	filt2_found = false;
+	list_for_each_entry(filt, &ldev->filter_head, sibling_node) {
+		if (filt->filter_num == filt1)
+			filt1_found = true;
+		else if (filt->filter_num == filt2)
+			filt2_found = true;
+	}
+	ut_asserteq(false, filt1_found);
+	ut_asserteq(false, filt2_found);
+
+	create_filter("", filt1);
+	create_filter("", filt2);
+
+	ut_assertok(console_record_reset_enable());
+	ut_assertok(run_command("log filter-remove -a", 0));
+	ut_assert_console_end();
+
+	list_for_each_entry(filt, &ldev->filter_head, sibling_node)
+		any_found = true;
+	ut_asserteq(false, any_found);
+
+	return 0;
+}
+LOG_TEST_FLAGS(log_test_filter, UT_TESTF_CONSOLE_REC);