Squashed 'lib/mbedtls/external/mbedtls/' content from commit 2ca6c285a0dd
git-subtree-dir: lib/mbedtls/external/mbedtls
git-subtree-split: 2ca6c285a0dd3f33982dd57299012dacab1ff206
diff --git a/tests/suites/test_suite_platform_printf.function b/tests/suites/test_suite_platform_printf.function
new file mode 100644
index 0000000..643accf
--- /dev/null
+++ b/tests/suites/test_suite_platform_printf.function
@@ -0,0 +1,89 @@
+/* BEGIN_HEADER */
+
+/* The printf test functions take a format argument from the test data
+ * for several reasons:
+ * - For some tests, it makes sense to vary the format.
+ * - For all tests, it means we're testing the actual printf function
+ * that parses the format at runtime, and not a compiler optimization.
+ * (It may be useful to add tests that allow compiler optimizations.
+ * There aren't any yet at the time of writing.)
+ */
+
+#include "mbedtls/platform.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define NEWLINE_CHAR '\n'
+#define SPACE_CHAR ' '
+#define DOUBLE_QUOTE_CHAR '"'
+#define COLON_CHAR ':'
+#define QUESTION_CHAR '?'
+#define BACKSLASH_CHAR '\\'
+#define LOWERCASE_N_CHAR 'n'
+/* END_HEADER */
+
+/* BEGIN_CASE */
+void printf_int(char *format, /* any format expecting one int argument, e.g. "%d" */
+ int x, char *result)
+{
+ char *output = NULL;
+ const size_t n = strlen(result);
+
+ /* Nominal case: buffer just large enough */
+ TEST_CALLOC(output, n + 1);
+ TEST_EQUAL(n, mbedtls_snprintf(output, n + 1, format, x));
+ TEST_MEMORY_COMPARE(result, n + 1, output, n + 1);
+ mbedtls_free(output);
+ output = NULL;
+
+exit:
+ mbedtls_free(output);
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void printf_long_max(const char *format, /* "%lx" or longer type */
+ long value)
+{
+ char *expected = NULL;
+ char *output = NULL;
+ /* 2 hex digits per byte */
+ const size_t n = sizeof(value) * 2;
+
+ /* We assume that long has no padding bits! */
+ TEST_CALLOC(expected, n + 1);
+ expected[0] = '7';
+ memset(expected + 1, 'f', sizeof(value) * 2 - 1);
+
+ TEST_CALLOC(output, n + 1);
+ TEST_EQUAL(n, mbedtls_snprintf(output, n + 1, format, value));
+ TEST_MEMORY_COMPARE(expected, n + 1, output, n + 1);
+ mbedtls_free(output);
+ output = NULL;
+
+exit:
+ mbedtls_free(output);
+ mbedtls_free(expected);
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void printf_char2(char *format, /* "%c%c" */
+ int arg1, int arg2, char *result)
+{
+ char *output = NULL;
+ const size_t n = strlen(result);
+
+ /* Nominal case: buffer just large enough */
+ TEST_CALLOC(output, n + 1);
+ TEST_EQUAL(n, mbedtls_snprintf(output, n + 1, format, arg1, arg2));
+ TEST_MEMORY_COMPARE(result, n + 1, output, n + 1);
+ mbedtls_free(output);
+ output = NULL;
+
+exit:
+ mbedtls_free(output);
+}
+/* END_CASE */