Question

我在此处测试了以下yaml脚本：online yaml parser

testcases:
- testcase:
    desc: 'TEST TC1'
    requirement-ref: Doors-10.1.1.0
    given:
      text: 'A UUT, TEST2 and TEST are connected'
      devices:
      - Device:
          Type: UUT
          Status: Connected
      - Device:
          Type: TEST
          Status: Connected
      - Device:
          Type: TEST2
          Status: Connected

- testcase: # next test case...
    desc: 'TEST TC2'

然后我有以下代码：

#include <iostream>
#include <unistd.h>
#include <ctime>
#include "yaml-cpp/yaml.h"

using namespace std;

void load_config()
{
    cout << "loading yaml file\n";

    YAML::Node testfile = YAML::LoadFile("BDD-test-case.yaml");
    if (testfile["testcases"])
    {
        cout << "found testfile[\"testcases\"] - size: " << testfile["testcases"].size() << "\n";
        YAML::Node testcases = testfile["testcases"];

        for (int i = 0; i < testcases.size(); i++)
        {
            YAML::Node testcase = testcases[0];
            cout << "testcase " << i << ":\n";
            cout << "\tsize:" << testcase.size() << "\n";
            cout << "\tIsNull:" << testcase.IsNull() << "\n";

            YAML::Node desc = testcase["desc"];
            if (desc)
            {
                std::string desc_str = desc.as<std::string>();
                cout << "desc: " << desc_str.c_str() << "\n";
            }
        }
    }
    cout << "yaml - done\n";
}

int main(int argc, char *argv[])
{
    long double lastTimeMS = time(0)*1000;
    long double CurrTimeMS = time(0)*1000;
    int localPort = 31010;
    int remotePort = 31011;
    int procId = 1;

    load_config();

    cout << "Hello World!" << endl;
    return 0;
}

我得到以下输出：

loading yaml file
found testfile["testcases"] - size: 2
testcase 0:
        size:1
        IsNull:0
testcase 1:
        size:1
        IsNull:0
yaml - done
Hello World!

我正在尝试解析每个测试用例并打印出“desc”字段的值。

从调试中可以看出，我能够找到顶级节点testcases。我检查它的大小，它是2 - 这是正确的。然后我遍历测试用例并将每个测试用例存储为新节点testcase = testcases[i]。到现在为止还挺好。但是现在我想看看每个测试用例里面的内容 - 我应该找到一个tsetcase [“desc”] ......但是我没有看到。事实上，testcase似乎是空的......

我在这里做错了什么？

Answer 1

当你抬头时：

YAML::Node desc = testcase["desc"];

您正在尝试在以下节点中查找desc密钥：

testcase:
  desc: 'TEST TC1'
  requirement-ref: Doors-10.1.1.0
  given:
    text: 'A UUT, TEST2 and TEST are connected'
    devices:
    - Device:
        Type: UUT
        Status: Connected
    - Device:
        Type: TEST
        Status: Connected
    - Device:
        Type: TEST2
        Status: Connected

但此节点有一个顶级地图键testcase。你可能并不打算这样做;我想如果您只是删除该密钥，那么您的文档看起来就像是您的意图。

<强>更新

固定的YAML（删除了额外级别的＆＃39;标记＆＃39;非预期）：

testcases:
-   desc: 'TEST TC1'
    requirement-ref: Doors-10.1.1.0
    given:
      text: 'A UUT, TEST2 and TEST are connected'
      devices:
      -   Type: UUT
          Status: Connected
      -   Type: TEST
          Status: Connected
      -   Type: TEST2
          Status: Connected

-   desc: 'TEST TC2'

yaml-cpp解析混合数组/字符串节点时遇到问题

1 个答案: