Add ctype test

[thirdparty/git.git] / test-ctype.c

diff --git a/test-ctype.c b/test-ctype.c
new file mode 100644 (file)
index 0000000..723eff4
--- /dev/null
+++ b/test-ctype.c
@@ -0,0 +1,66 @@
+#include "cache.h"
+
+
+static int test_isdigit(int c)
+{
+       return isdigit(c);
+}
+
+static int test_isspace(int c)
+{
+       return isspace(c);
+}
+
+static int test_isalpha(int c)
+{
+       return isalpha(c);
+}
+
+static int test_isalnum(int c)
+{
+       return isalnum(c);
+}
+
+#define DIGIT "0123456789"
+#define LOWER "abcdefghijklmnopqrstuvwxyz"
+#define UPPER "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+static const struct ctype_class {
+       const char *name;
+       int (*test_fn)(int);
+       const char *members;
+} classes[] = {
+       { "isdigit", test_isdigit, DIGIT },
+       { "isspace", test_isspace, " \n\r\t" },
+       { "isalpha", test_isalpha, LOWER UPPER },
+       { "isalnum", test_isalnum, LOWER UPPER DIGIT },
+       { NULL }
+};
+
+static int test_class(const struct ctype_class *test)
+{
+       int i, rc = 0;
+
+       for (i = 0; i < 256; i++) {
+               int expected = i ? !!strchr(test->members, i) : 0;
+               int actual = test->test_fn(i);
+
+               if (actual != expected) {
+                       rc = 1;
+                       printf("%s classifies char %d (0x%02x) wrongly\n",
+                              test->name, i, i);
+               }
+       }
+       return rc;
+}
+
+int main(int argc, char **argv)
+{
+       const struct ctype_class *test;
+       int rc = 0;
+
+       for (test = classes; test->name; test++)
+               rc |= test_class(test);
+
+       return rc;
+}