Question

我正在尝试在Swift中进行测试。

我想测试我的代码以打开和访问SQLite数据库。我以为可以将测试SQLite文件放在测试目标中（我怀疑是问题所在）。

我能够打开数据库并返回指向我的数据库的指针（在测试包中）

func openDatabase(_ databasePath: String) -> OpaquePointer? {
    var db: OpaquePointer? = nil
    if sqlite3_open(databasePath, &db) == SQLITE_OK {
        print("Successfully opened connection to database at \(Constants.dbName)")
        return db
    } else {
        print("Unable to open database. Verify that you created the directory described " +
            "in the Getting Started section.")
        return nil
    }
}

但是我无法真正读取数据库：

    func readQuestionsFromDB(_ dbpointer: OpaquePointer) -> [Question] {
        let querySql = "select * from Questions;"
        var sqliteStatement: OpaquePointer? = nil
        var questions = [Question]()
        if sqlite3_prepare_v2(dbpointer, querySql, -1, &sqliteStatement, nil) == SQLITE_OK {
// does not execute
}
    sqlite3_finalize(sqliteStatement)
    return nil
}

运行以下测试：

func testReadDatabase() {
    let sq = SQLiteManager()
    let db = sq.openDatabase("sociologydb")
    let test = sq.readQuestionsFromDB(db!)
    XCTAssertEqual(test.count, 1) // returns zero even when the code above is correctly filled in to populate the array
}

我想这是因为我的主要目标无法访问Test目标中的资源。那么测试打开数据库代码的最佳方法是什么？

快速加载SQLiteDB的测试

0 个答案: