UserDB: Alternative Output Format - CSV

Write CSV: Test

Talk

  • We have tests, why not continue this way?

  • Write test to see how it could be done

Write test

  • Copy test-funny-overflow-file.cpp to test-csv.cpp

  • Expected content:

    std::string expected_content = "666;Joerg;Faschingbauer;joerg@home.com\n";

  • Pull in read-file (at the top of the file -> function)

  • Write out filled DB

    Discuss implementation strategy

    In a hurry ⟶ bool binary

  • read_file()

  • Compare

Implement

  • In UserDB::write(string filename, bool binary=true)

    • if/else

    • Pull in write-csv into CSV branch

Write CSV: Frontend Program

Build that functionality into bin/userdb-write-binaryfile.cpp

  • Rename to bin/userdb-write.cpp

  • argv[1] … type

  • argv[2] … filename

Read CSV: Test

Discuss

  • Do we really want to write one file per test?

  • Doesn’t writing and reading CSV belong together?

Implement read test inside tests/test-csv.cpp

  • Rename main() to test_write_csv()

  • Call that in main()

  • New (empty) test, test_read_csv()

    • Pull read-csv-test into body

  • Ah yes, UserDB::read(string filename, binary=true)

    • if/else

    • Pull in write-csv into CSV branch

Write CSV: Frontend Program

Build that functionality into bin/userdb-read-binaryfile.cpp

  • Rename to bin/userdb-read.cpp

  • argv[1] … type

  • argv[2] … filename