Find libraries on darwin and linux

1 files changed, 44 insertions, 1 deletions

diff --git a/tests/test_shlib_spm_shlib_deps.c b/tests/test_shlib_spm_shlib_deps.c
index 40e52f8..46a06db 100644
--- a/tests/test_shlib_spm_shlib_deps.c
+++ b/tests/test_shlib_spm_shlib_deps.c
@@ -1,6 +1,45 @@
 #include "spm.h"
 #include "framework.h"
 
+static char *LIBRARY_SEARCH_PATH[] = {
+#if OS_DARWIN
+        "/usr/lib",
+        "/usr/local/lib",
+#elif OS_LINUX
+        "/lib",
+        "/usr/lib",
+        "/usr/local/lib",
+        "/lib64",
+        "/usr/lib64",
+        "/usr/local/lib64",
+#endif
+        NULL,
+};
+
+/**
+ * Find a library based on known library search paths. This cannot handle macos-style `@string` paths, and
+ * will not follow RPATHs.
+ * @param name
+ * @return path to library (or NULL)
+ */
+static char *find_library(const char *name) {
+    char *path = NULL;
+
+    if (strstr(name, DIRSEPS) != NULL) {
+        return strdup(name);
+    }
+
+    for (size_t i = 0; LIBRARY_SEARCH_PATH[i] != NULL; i++) {
+        path = join_ex(path, DIRSEPS, LIBRARY_SEARCH_PATH[i], name);
+        if (path != NULL && exists(path) == 0) {
+            break;
+        }
+        free(path);
+        path = NULL;
+    }
+    return path;
+}
+
 struct TestCase testCase[] = {
         {.caseValue.sptr = "/bin/sh", .truthValue.signed_integer = 0},
         {.caseValue.sptr = "/usr/bin/tar", .truthValue.signed_integer = 0},
@@ -9,11 +48,13 @@ struct TestCase testCase[] = {
 };
 size_t numCases = sizeof(testCase) / sizeof(struct TestCase);
 
+
 int main(int argc, char *argv[]) {
     for (size_t i = 0; i < numCases; i++) {
         StrList *result = shlib_deps(testCase[i].caseValue.sptr);
         if (result == NULL && testCase[i].truthValue.signed_integer < 0) {
             // expected failure
+            fprintf(stderr, "case %zu: trapped expected failure (ignore any stderr text)\n", i);
             continue;
         }
 
@@ -21,8 +62,10 @@ int main(int argc, char *argv[]) {
         myassert(result != NULL, "case %zu: unexpected NULL", i);
         for (size_t j = 0; j < strlist_count(result);  j++) {
             char *item = strlist_item(result, j);
-            myassert(exists(item) == testCase[i].truthValue.signed_integer,
+            char *libpath = find_library(item);
+            myassert(libpath != NULL,
                     "library record found, but does not exist: '%s' (your OS is broken)\n", item);
+            free(libpath);
         }
         strlist_free(result);
     }