From 0dbbdd9b594269fdb66c834146011df48678a901 Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Sat, 1 Nov 2025 17:36:26 -0400
Subject: extract big-endian signals from frames

---
 fw/tests/unit/signal_utests.c | 51 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 fw/tests/unit/signal_utests.c

(limited to 'fw/tests/unit/signal_utests.c')

diff --git a/fw/tests/unit/signal_utests.c b/fw/tests/unit/signal_utests.c
new file mode 100644
index 0000000..ebce8f6
--- /dev/null
+++ b/fw/tests/unit/signal_utests.c
@@ -0,0 +1,51 @@
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <unity.h>
+
+#include <types.h>
+#include <can.h>
+#include <signal.h>
+#include <signal_utestable.h>
+
+void setUp(void) {}
+void tearDown(void) {}
+
+static void
+testPluckLE(void) {
+	setUp();
+
+	// TODO
+	TEST_ASSERT(0);
+
+	tearDown();
+}
+
+static void
+testPluckBE(void) {
+	setUp();
+
+	// 1111 1111  (1110 11)10  (1111 0010)  1111 1(101)
+	// 7       0  15        8  23      16  31       24
+	CanFrame frame = {.data = {0xFF, 0xEE, 0xF2, 0xFD}};
+	SigFmt sig = {
+		.start = 10u,
+		.size = 17u,
+	};
+	U32 want = 0x1DF95;
+	U32 got;
+	pluckBE(&sig, &frame, &got);
+	TEST_ASSERT_EQUAL_UINT32(want, got);
+
+	tearDown();
+}
+
+int
+main(void) {
+	UnityBegin(__FILE__);
+
+	RUN_TEST(testPluckLE);
+	RUN_TEST(testPluckBE);
+
+	return UnityEnd();
+}
-- 
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