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-rw-r--r--lib/ccan/endian/test/run.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/lib/ccan/endian/test/run.c b/lib/ccan/endian/test/run.c
new file mode 100644
index 0000000000..a00fce74e4
--- /dev/null
+++ b/lib/ccan/endian/test/run.c
@@ -0,0 +1,106 @@
+#include <ccan/endian/endian.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <ccan/tap/tap.h>
+
+int main(int argc, char *argv[])
+{
+ union {
+ uint64_t u64;
+ unsigned char u64_bytes[8];
+ } u64;
+ union {
+ uint32_t u32;
+ unsigned char u32_bytes[4];
+ } u32;
+ union {
+ uint16_t u16;
+ unsigned char u16_bytes[2];
+ } u16;
+
+ plan_tests(48);
+
+ /* Straight swap tests. */
+ u64.u64_bytes[0] = 0x00;
+ u64.u64_bytes[1] = 0x11;
+ u64.u64_bytes[2] = 0x22;
+ u64.u64_bytes[3] = 0x33;
+ u64.u64_bytes[4] = 0x44;
+ u64.u64_bytes[5] = 0x55;
+ u64.u64_bytes[6] = 0x66;
+ u64.u64_bytes[7] = 0x77;
+ u64.u64 = bswap_64(u64.u64);
+ ok1(u64.u64_bytes[7] == 0x00);
+ ok1(u64.u64_bytes[6] == 0x11);
+ ok1(u64.u64_bytes[5] == 0x22);
+ ok1(u64.u64_bytes[4] == 0x33);
+ ok1(u64.u64_bytes[3] == 0x44);
+ ok1(u64.u64_bytes[2] == 0x55);
+ ok1(u64.u64_bytes[1] == 0x66);
+ ok1(u64.u64_bytes[0] == 0x77);
+
+ u32.u32_bytes[0] = 0x00;
+ u32.u32_bytes[1] = 0x11;
+ u32.u32_bytes[2] = 0x22;
+ u32.u32_bytes[3] = 0x33;
+ u32.u32 = bswap_32(u32.u32);
+ ok1(u32.u32_bytes[3] == 0x00);
+ ok1(u32.u32_bytes[2] == 0x11);
+ ok1(u32.u32_bytes[1] == 0x22);
+ ok1(u32.u32_bytes[0] == 0x33);
+
+ u16.u16_bytes[0] = 0x00;
+ u16.u16_bytes[1] = 0x11;
+ u16.u16 = bswap_16(u16.u16);
+ ok1(u16.u16_bytes[1] == 0x00);
+ ok1(u16.u16_bytes[0] == 0x11);
+
+ /* Endian tests. */
+ u64.u64 = cpu_to_le64(0x0011223344556677ULL);
+ ok1(u64.u64_bytes[0] == 0x77);
+ ok1(u64.u64_bytes[1] == 0x66);
+ ok1(u64.u64_bytes[2] == 0x55);
+ ok1(u64.u64_bytes[3] == 0x44);
+ ok1(u64.u64_bytes[4] == 0x33);
+ ok1(u64.u64_bytes[5] == 0x22);
+ ok1(u64.u64_bytes[6] == 0x11);
+ ok1(u64.u64_bytes[7] == 0x00);
+ ok1(le64_to_cpu(u64.u64) == 0x0011223344556677ULL);
+
+ u64.u64 = cpu_to_be64(0x0011223344556677ULL);
+ ok1(u64.u64_bytes[7] == 0x77);
+ ok1(u64.u64_bytes[6] == 0x66);
+ ok1(u64.u64_bytes[5] == 0x55);
+ ok1(u64.u64_bytes[4] == 0x44);
+ ok1(u64.u64_bytes[3] == 0x33);
+ ok1(u64.u64_bytes[2] == 0x22);
+ ok1(u64.u64_bytes[1] == 0x11);
+ ok1(u64.u64_bytes[0] == 0x00);
+ ok1(be64_to_cpu(u64.u64) == 0x0011223344556677ULL);
+
+ u32.u32 = cpu_to_le32(0x00112233);
+ ok1(u32.u32_bytes[0] == 0x33);
+ ok1(u32.u32_bytes[1] == 0x22);
+ ok1(u32.u32_bytes[2] == 0x11);
+ ok1(u32.u32_bytes[3] == 0x00);
+ ok1(le32_to_cpu(u32.u32) == 0x00112233);
+
+ u32.u32 = cpu_to_be32(0x00112233);
+ ok1(u32.u32_bytes[3] == 0x33);
+ ok1(u32.u32_bytes[2] == 0x22);
+ ok1(u32.u32_bytes[1] == 0x11);
+ ok1(u32.u32_bytes[0] == 0x00);
+ ok1(be32_to_cpu(u32.u32) == 0x00112233);
+
+ u16.u16 = cpu_to_le16(0x0011);
+ ok1(u16.u16_bytes[0] == 0x11);
+ ok1(u16.u16_bytes[1] == 0x00);
+ ok1(le16_to_cpu(u16.u16) == 0x0011);
+
+ u16.u16 = cpu_to_be16(0x0011);
+ ok1(u16.u16_bytes[1] == 0x11);
+ ok1(u16.u16_bytes[0] == 0x00);
+ ok1(be16_to_cpu(u16.u16) == 0x0011);
+
+ exit(exit_status());
+}