Add test_error_handler_spmerrno_cause

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/test_error_handler_spmerrno_cause.c b/tests/test_error_handler_spmerrno_cause.c
new file mode 100644
index 0000000..1d9d9b9
--- /dev/null
+++ b/tests/test_error_handler_spmerrno_cause.c
@@ -0,0 +1,33 @@
+#include "spm.h"
+#include "framework.h"
+
+const char *testFmt = "translated error code '%d': returned '%s', expected '%s'\n";
+struct TestCase testCase[] = {
+#if defined(__APPLE__) && defined(__MACH__)
+        {.caseValue.signed_integer = 0, .truthValue.sptr = "Undefined error: 0 (winning)", .arg[0].signed_integer = 0, .arg[1].sptr = "winning"},
+        {.caseValue.signed_integer = -1, .truthValue.sptr = "Unknown error -1 (not winning)", .arg[0].signed_integer = 0, .arg[1].sptr = "not winning"},
+#elif defined(__linux) || defined(__linux__)
+        {.caseValue.signed_integer = 0, .truthValue.sptr = "Success (winning)", .arg[0].signed_integer = 0, .arg[1].sptr = "winning"},
+        {.caseValue.signed_integer = -1, .truthValue.sptr = "Unknown error -1 (not winning)", .arg[0].signed_integer = 0, .arg[1].sptr = "not winning"},
+#endif
+        {.caseValue.signed_integer = SPM_ERR_ROOT_NO_RECORD, .truthValue.sptr = "No root record (/some/path)", .arg[0].signed_integer = 0, .arg[1].sptr = "/some/path"},
+        {.caseValue.signed_integer = SPM_ERR_ROOT_UNSAFE, .truthValue.sptr = "Dangerous root path (was /)", .arg[0].signed_integer = 0, .arg[1].sptr = "was /"},
+};
+size_t numCases = sizeof(testCase) / sizeof(struct TestCase);
+
+int main(int argc, char *argv[]) {
+    for (size_t i = 0; i < numCases; i++) {
+        // Mock global errno value to the value stored in the test case
+        errno = testCase[i].arg[0].signed_integer;
+        // Mock spmerrno value
+        spmerrno = testCase[i].caseValue.signed_integer;
+        spmerrno_cause(testCase[i].arg[1].sptr);
+
+        // Get SPM error (or system error)
+        char *estr = spm_strerror(testCase[i].caseValue.signed_integer);
+
+        // Assert error string matches error produced
+        myassert(strcmp(estr, testCase[i].truthValue.sptr) == 0, testFmt, testCase[i].caseValue.signed_integer, estr, testCase[i].truthValue.sptr);
+    }
+    return 0;
+}
\ No newline at end of file