1 files changed, 40 insertions, 0 deletions
diff --git a/tests/test_environment.c b/tests/test_environment.c
new file mode 100644
index 0000000..d081dac
--- /dev/null
+++ b/tests/test_environment.c
@@ -0,0 +1,40 @@
+#include "spm.h"
+#include "framework.h"
+
+const char *testFmt = "returned '%s', expected '%s'\n";
+struct TestCase testCase = {
+        .caseValue.voidptr = (char *[]){"test1=one", "test2=two", NULL},
+        .inputValue.voidptr = (char *[]){"test1", "test2", NULL},
+        .truthValue.voidptr = (char *[]){"one", "two", NULL},
+        .arg[0].sptr = "one hundred",
+};
+
+int main(int argc, char *argv[]) {
+    RuntimeEnv *rt = NULL;
+    char **pInput = (char **)testCase.inputValue.voidptr;
+    char **pTruth = (char **)testCase.truthValue.voidptr;
+
+    rt = runtime_copy((char **)testCase.caseValue.voidptr);
+    myassert(rt != NULL, "runtime_copy failed");
+
+    // Are the keys we just inserted actually there?
+    for (size_t j = 0; pInput[j] != NULL; j++) {
+        char *result = runtime_get(rt, pInput[j]);
+        myassert(strcmp(result, pTruth[j]) == 0, "returned '%s', expected '%s'\n", result, pTruth[j]);
+    }
+
+    // Set a key that already exists to have a different value
+    runtime_set(rt, pInput[0], testCase.arg[0].sptr);
+    myassert(strcmp(runtime_get(rt, pInput[0]), testCase.arg[0].sptr) == 0,
+            "runtime_set changed contents of '%s', but did not work: '%s'\n", runtime_get(rt, pInput[0]), runtime_get(rt, pInput[0]));
+
+    myassert(runtime_contains(rt, pInput[0]) >= 0, "key '%s' is not present", pInput[0]);
+    myassert(runtime_contains(rt, pInput[1]) >= 0, "key '%s' is not present", pInput[1]);
+
+    // Apply changes in `rt` to system environment
+    runtime_apply(rt);
+    myassert(getenv(pInput[0]) != NULL, "runtime_apply failed");
+    myassert(getenv(pInput[1]) != NULL, "runtime_apply failed");
+
+    runtime_free(rt);
+}
+\ No newline at end of file