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path: root/internal/dbstore/dbstore_test.go
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package dbstore

import (
  "compress/gzip"
  db_sql "database/sql"
  "encoding/xml"
  "embed"
  "errors"
  "fmt"
  _ "github.com/mattn/go-sqlite3"
  "github.com/pablotron/cvez/cpedict"
  io_fs "io/fs"
  "os"
  "testing"
)

func getTestDictionary(path string) (cpedict.Dictionary, error) {
  var dict cpedict.Dictionary

  // open test data
  f, err := os.Open(path)
  if err != nil {
    return dict, err
  }
  defer f.Close()

  // create zip reader
  gz, err := gzip.NewReader(f)
  if err != nil {
    return dict, err
  }
  defer gz.Close()

  // create xml decoder
  d := xml.NewDecoder(gz)

  // decode xml
  if err = d.Decode(&dict); err != nil {
    return dict, err
  }

  // return success
  return dict, nil
}
//go:embed testdata/sql/*.sql
var testSqlFs embed.FS

var testSqlIds = map[string]bool {
  "init": false,
  "insert-cpe": true,
  "insert-title": true,
  "insert-ref": true,
}

func getTestQueries() (map[string]string, error) {
  r := make(map[string]string)

  for id, _ := range(testSqlIds) {
    path := fmt.Sprintf("testdata/sql/%s.sql", id)
    if data, err := testSqlFs.ReadFile(path); err != nil {
      return r, err
    } else {
      r[id] = string(data)
    }
  }

  return r, nil
}

func TestSimple(t *testing.T) {
  testDbPath := "./testdata/foo.db"
  // get queries
  queries, err := getTestQueries()
  if err != nil {
    t.Error(err)
    return
  }

  // load test CPEs
  dict, err := getTestDictionary("testdata/test-0.xml.gz")
  if err != nil {
    t.Error(err)
    return
  }

  // does test db exist?
  if _, err = os.Stat(testDbPath); err != nil {
    if !errors.Is(err, io_fs.ErrNotExist) {
      t.Error(err)
      return
    }
  } else if err == nil {
    // remove test db
    if err = os.Remove(testDbPath); err != nil {
      t.Error(err)
      return
    }
  }

  // init db
  db, err := db_sql.Open("sqlite3", testDbPath)
  if err != nil {
    t.Error(err)
    return
  }
  defer db.Close()

  // init tables
  if _, err := db.Exec(queries["init"]); err != nil {
    t.Error(err)
    return
  }

  tx, err := db.Begin()
  if err != nil {
    t.Error(err)
    return
  }

  // build statements
  sts := make(map[string]*db_sql.Stmt)
  for id, use := range(testSqlIds) {
    if use {
      if st, err := tx.Prepare(queries[id]); err != nil {
        t.Error(err)
        return
      } else {
        sts[id] = st
        defer sts[id].Close()
      }
    }
  }

  // add items
  for _, item := range(dict.Items) {
    // add cpe
    rs, err := sts["insert-cpe"].Exec(item.CpeUri, item.Cpe23Item.Name);
    if err != nil {
      t.Error(err)
      return
    }

    // get last row ID
    id, err := rs.LastInsertId()
    if err != nil {
      t.Error(err)
      return
    }

    // add titles
    for _, title := range(item.Titles) {
      if _, err := sts["insert-title"].Exec(id, title.Lang, title.Text); err != nil {
        t.Error(err)
        return
      }
    }

    // add refs
    for _, ref := range(item.References) {
      if _, err := sts["insert-ref"].Exec(id, ref.Href, ref.Text); err != nil {
        t.Error(err)
        return
      }
    }
  }

  // commit changes
  if err = tx.Commit(); err != nil {
    t.Error(err)
    return
  }
}