YugabyteDB (2.13.0.0-b42, bfc6a6643e7399ac8a0e81d06a3ee6d6571b33ab)

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// Portions Copyright (c) YugaByte, Inc.

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// 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

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#include <string>

#include <vector>

#include <gtest/gtest.h>

#include "yb/gutil/integral_types.h"

#include "yb/util/jsonreader.h"

#include "yb/util/status.h"

#include "yb/util/test_macros.h"

using rapidjson::Value;

using std::string;

using std::vector;

using strings::Substitute;

namespace yb {

TEST(JsonReaderTest, Corrupt) {

  JsonReader r("");

  Status s = r.Init();

  ASSERT_TRUE(s.IsCorruption());

  ASSERT_STR_CONTAINS(

      s.ToString(), "JSON text is corrupt: The document is empty.");

}

TEST(JsonReaderTest, Empty) {

  JsonReader r("{}");

  ASSERT_OK(r.Init());

  JsonReader r2("[]");

  ASSERT_OK(r2.Init());

  // Not found.

  ASSERT_TRUE(r.ExtractInt32(r.root(), "foo", nullptr).IsNotFound());

  ASSERT_TRUE(r.ExtractInt64(r.root(), "foo", nullptr).IsNotFound());

  ASSERT_TRUE(r.ExtractString(r.root(), "foo", nullptr).IsNotFound());

  ASSERT_TRUE(r.ExtractObject(r.root(), "foo", nullptr).IsNotFound());

  ASSERT_TRUE(r.ExtractObjectArray(r.root(), "foo", nullptr).IsNotFound());

}

TEST(JsonReaderTest, Basic) {

  JsonReader r("{ \"foo\" : \"bar\" }");

  ASSERT_OK(r.Init());

  string foo;

  ASSERT_OK(r.ExtractString(r.root(), "foo", &foo));

  ASSERT_EQ("bar", foo);

  // Bad types.

  ASSERT_TRUE(r.ExtractInt32(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt64(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObject(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObjectArray(r.root(), "foo", nullptr).IsInvalidArgument());

}

TEST(JsonReaderTest, LessBasic) {

  string doc = Substitute(

      "{ \"small\" : 1, \"big\" : $0, \"null\" : null, \"empty\" : \"\" }", kint64max);

  JsonReader r(doc);

  ASSERT_OK(r.Init());

  int32_t small;

  ASSERT_OK(r.ExtractInt32(r.root(), "small", &small));

  ASSERT_EQ(1, small);

  int64_t big;

  ASSERT_OK(r.ExtractInt64(r.root(), "big", &big));

  ASSERT_EQ(kint64max, big);

  string str;

  ASSERT_OK(r.ExtractString(r.root(), "null", &str));

  ASSERT_EQ("", str);

  ASSERT_OK(r.ExtractString(r.root(), "empty", &str));

  ASSERT_EQ("", str);

  // Bad types.

  ASSERT_TRUE(r.ExtractString(r.root(), "small", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObject(r.root(), "small", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObjectArray(r.root(), "small", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt32(r.root(), "big", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractString(r.root(), "big", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObject(r.root(), "big", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObjectArray(r.root(), "big", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt32(r.root(), "null", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt64(r.root(), "null", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObject(r.root(), "null", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObjectArray(r.root(), "null", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt32(r.root(), "empty", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt64(r.root(), "empty", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObject(r.root(), "empty", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObjectArray(r.root(), "empty", nullptr).IsInvalidArgument());

}

TEST(JsonReaderTest, Objects) {

  JsonReader r("{ \"foo\" : { \"1\" : 1 } }");

  ASSERT_OK(r.Init());

  const Value* foo = nullptr;

  ASSERT_OK(r.ExtractObject(r.root(), "foo", &foo));

  ASSERT_TRUE(foo);

  int32_t one;

  ASSERT_OK(r.ExtractInt32(foo, "1", &one));

  ASSERT_EQ(1, one);

  // Bad types.

  ASSERT_TRUE(r.ExtractInt32(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt64(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractString(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObjectArray(r.root(), "foo", nullptr).IsInvalidArgument());

}

TEST(JsonReaderTest, TopLevelArray) {

  JsonReader r("[ { \"name\" : \"foo\" }, { \"name\" : \"bar\" } ]");

  ASSERT_OK(r.Init());

  vector<const Value*> objs;

  ASSERT_OK(r.ExtractObjectArray(r.root(), nullptr, &objs));

  ASSERT_EQ(2, objs.size());

  string name;

  ASSERT_OK(r.ExtractString(objs[0], "name", &name));

  ASSERT_EQ("foo", name);

  ASSERT_OK(r.ExtractString(objs[1], "name", &name));

  ASSERT_EQ("bar", name);

  // Bad types.

  ASSERT_TRUE(r.ExtractInt32(r.root(), nullptr, NULL).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt64(r.root(), nullptr, NULL).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractString(r.root(), nullptr, NULL).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObject(r.root(), nullptr, NULL).IsInvalidArgument());

}

TEST(JsonReaderTest, NestedArray) {

  JsonReader r("{ \"foo\" : [ { \"val\" : 0 }, { \"val\" : 1 }, { \"val\" : 2 } ] }");

  ASSERT_OK(r.Init());

  vector<const Value*> foo;

  ASSERT_OK(r.ExtractObjectArray(r.root(), "foo", &foo));

  ASSERT_EQ(3, foo.size());

  int i = 0;

  for (const Value* v : foo) {

    int32_t number;

    ASSERT_OK(r.ExtractInt32(v, "val", &number));

    ASSERT_EQ(i, number);

    i++;

  }

  // Bad types.

  ASSERT_TRUE(r.ExtractInt32(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractInt64(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractString(r.root(), "foo", nullptr).IsInvalidArgument());

  ASSERT_TRUE(r.ExtractObject(r.root(), "foo", nullptr).IsInvalidArgument());

}

} // namespace yb