Import of the watch repository from Pebble

tests/fw/util/test_base64.c

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+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "util/base64.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "clar.h"
+
+#include "stubs_passert.h"
+
+
+// Stubs
+///////////////////////////////////////////////////////////
+int g_pbl_log_level = 0;
+void pbl_log(const char* src_filename, int src_line_number, const char* fmt, ...) { }
+
+// Tests
+///////////////////////////////////////////////////////////
+static void prv_test_decode_encode(const char* test_name, char* buffer, unsigned int buffer_length,
+                                   const uint8_t* expected, unsigned int expected_length) {
+  cl_assert(buffer_length % 4 == 0);
+
+  char original_in[buffer_length + 1];
+  memcpy(original_in, buffer, buffer_length + 1);
+
+  // test decode
+  unsigned int num_bytes = base64_decode_inplace(buffer, buffer_length);
+  cl_assert(num_bytes == expected_length);
+  cl_assert(memcmp(buffer, expected, num_bytes) == 0);
+
+  // test encode
+  char out[buffer_length + 1];
+  int result = base64_encode(out, buffer_length + 1, expected, expected_length);
+  cl_assert_equal_i(result, buffer_length);
+  cl_assert_equal_m(out, original_in, buffer_length);
+}
+
+void test_base64__initialize(void) {
+}
+
+void test_base64__cleanup(void) {
+}
+
+void test_base64__decode(void) {
+  {
+    char buffer[] = "abcd";
+    const uint8_t expected[] = { 0x69, 0xb7, 0x1d };
+    prv_test_decode_encode("basic", buffer, 4, expected, 3);
+  }
+
+  {
+    char buffer[] = "ABCD";
+    const uint8_t expected[] = { 0x0, 0x10, 0x83 };
+    prv_test_decode_encode("upper", buffer, 4, expected, 3);
+  }
+
+  {
+    char buffer[] = "abcdABCD";
+    const uint8_t expected[] = { 0x69, 0xb7, 0x1d, 0x0, 0x10, 0x83 };
+    prv_test_decode_encode("twobyte", buffer, 8, expected, 6);
+  }
+
+  {
+    char buffer[] = "vu8=";
+    const uint8_t expected[] = { 0xbe, 0xef };
+    prv_test_decode_encode("1pad", buffer, 4, expected, 2);
+  }
+
+  {
+    char buffer[] = "aQ==";
+    const uint8_t expected[] = { 0x69 };
+    prv_test_decode_encode("2pad", buffer, 4, expected, 1);
+  }
+}