Repo created

libs/coding/coding_tests/value_opt_string_test.cpp

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+#include "testing/testing.hpp"
+
+#include "coding/reader.hpp"
+#include "coding/value_opt_string.hpp"
+#include "coding/writer.hpp"
+
+#include <algorithm>
+#include <string>
+#include <vector>
+
+namespace
+{
+
+template <class T>
+void TestStringCodingT(T const * arr, size_t count, size_t maxSize)
+{
+  for (size_t i = 0; i < count; ++i)
+  {
+    auto const ethalon = strings::to_string(arr[i]);
+
+    StringNumericOptimal s;
+    s.Set(ethalon);
+
+    std::vector<char> buffer;
+    MemWriter<std::vector<char>> w(buffer);
+
+    s.Write(w);
+
+    size_t const sz = buffer.size();
+    TEST_GREATER(sz, 0, ());
+    TEST_LESS_OR_EQUAL(sz, maxSize, ());
+
+    MemReader r(&buffer[0], sz);
+    ReaderSource<MemReader> src(r);
+    s.Read(src);
+
+    TEST_EQUAL(ethalon, s.Get(), ());
+  }
+}
+
+}  // namespace
+
+UNIT_TEST(StringNumericOptimal_Zero)
+{
+  int t1 = 0;
+  TestStringCodingT(&t1, 1, 1);  // should be coded as VarUint
+
+  std::string t2 = "01";
+  TestStringCodingT(&t2, 1, 3);  // should be coded as String
+}
+
+UNIT_TEST(StringNumericOptimal_IntCoding1)
+{
+  int arr[] = {0, 1, 2, 666, 0x0FFFFFFF, 0x7FFFFFFF - 1, 0x7FFFFFFF};
+  TestStringCodingT(arr, ARRAY_SIZE(arr), 5);  // should be coded as VarUint
+}
+
+UNIT_TEST(StringNumericOptimal_IntCoding2)
+{
+  int arr[] = {-1, -2, -666666, static_cast<int>(0xFFFFFFFE), static_cast<int>(0xFFFFFFFF)};
+  TestStringCodingT(arr, ARRAY_SIZE(arr), 12);  // should be coded as String
+}
+
+UNIT_TEST(StringNumericOptimal_StringCoding)
+{
+  char const * arr[] = {"xxx", "yyy", "a", "0xFFFFFF", "123456UL"};
+  TestStringCodingT(arr, ARRAY_SIZE(arr), 12);  // should be coded as String
+}
+
+UNIT_TEST(StringNumericOptimal_LargeStringCoding)
+{
+  std::string s;
+  fill_n(back_inserter(s), 10000, 'x');
+
+  TestStringCodingT(&s, 1, 10006);
+}