implement xorshift

1 files changed, 36 insertions, 0 deletions

diff --git a/lichen.test.c b/lichen.test.c
new file mode 100644
index 0000000..77ff067
--- /dev/null
+++ b/lichen.test.c
@@ -0,0 +1,36 @@
+#define LILY_IMPLEMENTATION
+#include "lichen.h"
+#include "lily-test.h"
+
+
+LILY_FILE_BEGIN(lichen_suite)
+
+LILY_TEST("xorshift output") {
+  struct li_xorshift32_t xor;
+  li_xorshift32_seed(&xor, 0);
+  CHECK_EQ(xor.generator.state, &(xor.state), "%p");
+  CHECK_NEQ(xor.state, 0, "%d");
+  uint16_t start = xor.state;
+  INFO("%p, %p", &(xor.state), xor.generator.state);
+  INFO("%d", xor.generator.rand(xor.generator.state));
+  INFO("%d, %d", xor.state, *((uint64_t*)xor.generator.state));
+  INFO("%d", xor.generator.rand(xor.generator.state));
+  INFO("%d, %d", xor.state, *((uint64_t*)xor.generator.state));
+  INFO("%d", xor.generator.rand(xor.generator.state));
+  INFO("%d, %d", xor.state, *((uint64_t*)xor.generator.state));
+  INFO("%d", xor.generator.rand(xor.generator.state));
+  INFO("%d, %d", xor.state, *((uint64_t*)xor.generator.state));
+  REQUIRE_NEQ(xor.state, start, "%d");
+}
+#include LILY_PUSH_TEST()
+
+#define LILY_FILE_END
+#include LILY_REGISTER_TESTS()
+
+
+int main() {
+  lily_begin();
+  lichen_suite();
+  lily_finish();
+  return 0;
+}