blogc: rusage: added tests, fixed minor issue

1 files changed, 104 insertions, 0 deletions

diff --git a/tests/blogc/check_rusage.c b/tests/blogc/check_rusage.c
new file mode 100644
index 0000000..e828fb2
--- /dev/null
+++ b/tests/blogc/check_rusage.c
@@ -0,0 +1,104 @@
+/*
+ * blogc: A blog compiler.
+ * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
+ *
+ * This program can be distributed under the terms of the BSD License.
+ * See the file LICENSE.
+ */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include "../../src/common/utils.h"
+#include "../../src/blogc/rusage.h"
+
+
+int
+__wrap_getrusage(int who, struct rusage *usage)
+{
+    assert_int_equal(who, RUSAGE_SELF);
+    int rv = mock_type(int);
+    if (rv == 0) {
+        usage->ru_utime.tv_sec = 1;
+        usage->ru_utime.tv_usec = 2;
+        usage->ru_stime.tv_sec = 3;
+        usage->ru_stime.tv_usec = 4;
+        usage->ru_maxrss = 10250;
+    }
+    return rv;
+}
+
+
+static void
+test_rusage_get(void **state)
+{
+    will_return(__wrap_getrusage, -1);
+    assert_null(blogc_rusage_get());
+
+    will_return(__wrap_getrusage, 0);
+    blogc_rusage_t *r = blogc_rusage_get();
+    assert_non_null(r);
+    assert_int_equal(r->cpu_time, 4000006);
+    assert_int_equal(r->memory, 10250);
+    free(r);
+}
+
+
+static void
+test_rusage_format_cpu_time(void **state)
+{
+    char *f = blogc_rusage_format_cpu_time(0);
+    assert_string_equal(f, "0us");
+    free(f);
+
+    f = blogc_rusage_format_cpu_time(123);
+    assert_string_equal(f, "123us");
+    free(f);
+
+    f = blogc_rusage_format_cpu_time(1234);
+    assert_string_equal(f, "1.234ms");
+    free(f);
+
+    f = blogc_rusage_format_cpu_time(12345678);
+    assert_string_equal(f, "12.346s");
+    free(f);
+}
+
+
+static void
+test_rusage_format_memory(void **state)
+{
+    char *f = blogc_rusage_format_memory(0);
+    assert_string_equal(f, "0KB");
+    free(f);
+
+    f = blogc_rusage_format_memory(123);
+    assert_string_equal(f, "123KB");
+    free(f);
+
+    f = blogc_rusage_format_memory(1234);
+    assert_string_equal(f, "1.205MB");
+    free(f);
+
+    f = blogc_rusage_format_memory(12345678);
+    assert_string_equal(f, "11.774GB");
+    free(f);
+}
+
+
+int
+main(void)
+{
+    const UnitTest tests[] = {
+        unit_test(test_rusage_get),
+        unit_test(test_rusage_format_cpu_time),
+        unit_test(test_rusage_format_memory),
+    };
+    return run_tests(tests);
+}