Qt 测试：在测试项目中实例化 object 时找不到错误符号

Question

我确定我在原来的 class (conferenceview) 中只是遗漏了一些东西，但我无法完全理解遗漏了什么。当我尝试构建我的 tst_conferencepage.cpp 文件时，其中包括我的会议视图 class，当我尝试实例化一个 object 会议视图类型。

conferenceview.h:

#ifndef CONFERENCEVIEW_H
#define CONFERENCEVIEW_H
#include "constants.h"

class conferenceView
{
    QString conference; // Holds the current conference selected by the fan
    QString division;   // Holds the current division selected by the fan
public:
    conferenceView(); // Default Constructor
    void setConference(QString);    // Sets the current conference of the fan
    QString getConference();    // Returns the current conference of the fan
    void setDivision(QString);  // Sets the current division of the fan
    QString getDivision();  // Gets the current division of the fan
    QSqlQuery queryConference(QString); // Returns a query for the teams in a specified conference
    QSqlQuery queryDivision(QString);   // Returns a query for the teams in a specified conference
    QSqlQueryModel* populateView(QString, int); // Returns a QSqlQueryModel index to display the queried data to the table view
};

#endif // CONFERENCEVIEW_H

conferenceview.cpp:

#include "conferenceview.h"

conferenceView::conferenceView()
{
    this->conference = "";
    this->division = "";
}

// Assigns conference to passed in QString
void conferenceView::setConference(QString conference) { this->conference = conference; }

// Returns conference
QString conferenceView::getConference() { return this->conference; };

// Assigns division to passed in QString
void conferenceView::setDivision(QString division) { this->division = division; }

// Returns division
QString conferenceView::getDivision() { return this->division; }


QSqlQuery conferenceView::queryConference(QString conference)
{
    this->setConference(conference); // Sets current conference

    // Queries database for team names by conference order by team name
    QSqlQuery q;
    q.prepare("SELECT TeamName "
              "FROM TeamInfo "
              "WHERE Conference = :conf "
              "ORDER BY TeamName");
    q.bindValue(":conf", conference);
    q.exec();

    return q;
}

QSqlQuery conferenceView::queryDivision(QString division)
{
    // Sets current division
    if( this->conference == "American Football Conference")
        this->setDivision(division.prepend("AFC "));
    else
        this->setDivision(division.prepend("NFC "));

    // Queries database for team names by division order by team name
    QSqlQuery q;
    q.prepare("SELECT TeamName "
              "FROM TeamInfo "
              "WHERE Division = :div "
              "ORDER BY TeamName");
    q.bindValue(":div", division);
    q.exec();

    return q;
}

QSqlQueryModel* conferenceView::populateView(QString str, int id)
{
    QSqlQueryModel* qModel = new QSqlQueryModel;

    // if id == 0, sets the qModel to the conference teams
    if(id == 0)
    {
        this->setConference(str);
        qModel->setQuery(this->queryConference(this->getConference()));
    }
    // if id == 1, sets the qModel to the division teams
    else
    {
        this->setDivision(str);
        qModel->setQuery(this->queryDivision(this->getDivision()));
    }

    // Sets the header title of the table view
    qModel->setHeaderData(0, Qt::Horizontal, QObject::tr("Team Name"));

    return qModel;
}

tst_conferencepage.cpp:

#include <QtTest>
#include "../NFL_Teams_App/conferenceview.h"

class ConferencePage : public QObject
{
    Q_OBJECT
    QVector<QString> AFC;
public:
    ConferencePage();
private slots:
    void testAFCConference();
};

ConferencePage::ConferencePage()
{
    this->AFC = {"Baltimore Ravens", "Buffalo Bills", "Cincinnati Bengals",
                 "Cleveland Browns", "Denver Broncos", "Houston Texans",
                 "Indianapolis Colts", "Jacksonville Jaguars", "Kansas City Chiefs",
                 "Los Angeles Chargers", "Miami Dolphins", "New England Patriots",
                 "New York Jets", "Oakland Raiders", "Pittsburgh Steelers", "Tennessee Titans"};
}

void ConferencePage::testAFCConference()
{

    conferenceView c;
    QSqlQuery query = c.queryConference("American Football Conference");
    int index = 0;
    while(query.next())
        QVERIFY(this->AFC.at(index) == query.value(index));

ConferencePage::testAFCConference() 中的阻塞代码是我实例化 conferenceView 类型的 object 的地方，错误源于。

UnitTests.pro:

QT += core testlib sql
QT -= gui

TARGET = UnitTests

CONFIG += qt console warn_on depend_includepath testcase
CONFIG -= app_bundle

TEMPLATE = app

SOURCES += \ 
    tst_conferencepage.cpp

项目层次结构：

完整错误信息：

Undefined symbols for architecture x86_64:
"conferenceView::queryConference(QString)", referenced from: ConferencePage::testAFCConference() in tst_conferencepage.o "conferenceView::conferenceView()", referenced from: ConferencePage::testAFCConference() in tst_conferencepage.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make[1]: * [UnitTests] Error 1 make: * [sub-UnitTests-make_first] Error 2 01:21:30: The process "/usr/bin/make" exited with code 2. Error while building/deploying project NFLTeamsProject (kit: Desktop Qt 5.11.2 clang 64bit) When executing step "Make"

感谢任何帮助，提前致谢！

Answer 1

您的 UnitTest.pro 文件中缺少 conferenceview.cpp 和 conferenceview.h，因此链接器不知道您的测试应该基于什么构建。您的 .pro 文件应如下所示：

QT += core testlib sql
QT -= gui

TARGET = UnitTests

CONFIG += qt console warn_on depend_includepath testcase
CONFIG -= app_bundle

TEMPLATE = app

VPATH = "../NFL_Teams_App"

SOURCES += \ 
    tst_conferencepage.cpp \
    conferenceview.cpp

HEADERS += \
    conferenceview.h

Qt 测试：在测试项目中实例化 object 时找不到错误符号

Qt Test: error symbol(s) not found when instantiating object in test project

c++

qt

qt-creator

undefined-symbol

qttest