Add test cases for blink and shift functionality

lib/libx52/Makefile.am

@@ -30,7 +30,7 @@ x52include_HEADERS = libx52.h
 # pkg-config files
 pkgconfig_DATA = libx52.pc
 
-check_PROGRAMS = test_offset test_led
+check_PROGRAMS = test_offset test_led test_blink_shift
 
 test_offset_SOURCES = test_offset.c
 test_offset_CFLAGS = @LIBUSB_CFLAGS@
@@ -40,8 +40,12 @@ test_led_SOURCES = test_led.c test_common.c
 test_led_CFLAGS = @LIBUSB_CFLAGS@
 test_led_LDADD = libx52.la
 
+test_blink_shift_SOURCES = test_blink_shift.c test_common.c
+test_blink_shift_CFLAGS = @LIBUSB_CFLAGS@
+test_blink_shift_LDADD = libx52.la
+
 LOG_DRIVER = env AM_TAP_AWK='$(AWK)' $(SHELL) $(top_srcdir)/tap-driver.sh
-TESTS = test_offset test_led
+TESTS = test_offset test_led test_blink_shift
 
 # Extra files that need to be in the distribution
 EXTRA_DIST = libx52.h x52_commands.h x52_common.h test_common.h README.md

lib/libx52/test_blink_shift.c

@@ -0,0 +1,89 @@
+/*
+ * Saitek X52 Pro MFD & LED driver
+ * Test program for validating blink and shift functionality
+ *
+ * Copyright (C) 2020 Nirenjan Krishnan (nirenjan@nirenjan.org)
+ *
+ * SPDX-License-Identifier: GPL-2.0-only WITH Classpath-exception-2.0
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include "x52_common.h"
+#include "test_common.h"
+#include "x52_commands.h"
+
+typedef int (*blink_shift_fn)(libx52_device *, uint8_t);
+
+struct test_case {
+    const char *test_case_id;
+    blink_shift_fn func;
+    uint8_t state;
+    struct ivpair data[2];
+};
+
+#define on 1
+#define off 0
+
+#define x52_shift_indicator 0xfd
+#define x52_shift_on 0x51
+#define x52_shift_off 0x50
+
+#define x52_blink_indicator 0xb4
+#define x52_blink_on 0x51
+#define x52_blink_off 0x50
+
+#define TEST(func, state) { #func "/" #state, libx52_set_ ## func, state, {{ x52_ ## func ## _indicator, x52_ ## func ## _ ## state}, {0, 0}}}
+
+const struct test_case test_cases[] = {
+    TEST(blink, on),
+    TEST(blink, off),
+    TEST(shift, on),
+    TEST(shift, off),
+};
+
+#define TC_COUNT (sizeof(test_cases) / sizeof(test_cases[0]))
+
+void run_test(int tc_id)
+{
+    struct libx52_device *dev = x52_test_init();
+
+    struct test_case test = test_cases[tc_id];
+
+    #define PRINT_FAIL() printf("not ok %d %s\n", tc_id+1, test.test_case_id)
+    #define PRINT_PASS() printf("ok %d %s\n", tc_id+1, test.test_case_id)
+    int rc = (*test.func)(dev, test.state);
+
+    if (rc != LIBX52_SUCCESS) {
+        PRINT_FAIL();
+        printf("# Expected success, got %d\n", rc);
+        return;
+    }
+
+    rc = libx52_update(dev);
+    if (rc != LIBX52_SUCCESS) {
+        PRINT_FAIL();
+        printf("# libx52_update failed, rc = %d\n", rc);
+        return;
+    }
+
+    if (!x52_test_assert_expected(dev, test.data)) {
+        PRINT_FAIL();
+        x52_test_print_diagnostics();
+        return;
+    }
+
+    PRINT_PASS();
+    x52_test_cleanup(dev);
+}
+
+int main()
+{
+    int i;
+
+    printf("1..%ld\n", TC_COUNT);
+    for (i = 0; i < TC_COUNT; i++) {
+        run_test(i);
+    }
+}