func (r *result) buildQuery(col db.Collection) (db.Result, error) {
var res db.Result
if r.args.where == nil {
res = col.Find(db.Cond{})
} else {
res = col.Find((*r.args.where)...)
}
if r.args.limit != nil {
res = res.Limit(*r.args.limit)
}
if r.args.skip != nil {
res = res.Skip(*r.args.skip)
}
if r.args.sort != nil {
res = res.Sort((*r.args.sort)...)
}
if r.args.fields != nil {
res = res.Select((*r.args.fields)...)
}
if r.args.group != nil {
res = res.Group((*r.args.group)...)
}
return res, nil
}
// Attempts to count all rows in our newly defined set.
func TestResultCount(t *testing.T) {
var err error
var res db.Result
var sess db.Database
var artist db.Collection
var total uint64
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
// We should close the database when it's no longer in use.
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
// Defining a set with no conditions.
res = artist.Find()
// Counting all the matching rows.
if total, err = res.Count(); err != nil {
t.Fatal(err)
}
if total == 0 {
t.Fatalf("Counter should not be zero, we've just added some rows!")
}
}
func PrintTable(col db.Collection) {
var users []User
col.Find().All(&users)
fmt.Printf("%+v\n", users)
}
// MongoDB: Does not support schemas so it can't has composite keys. We're
// testing db.Constrainer and db.IDSetter interface.
func TestSetterAndConstrainer(t *testing.T) {
var err error
var id interface{}
var sess db.Database
var compositeKeys db.Collection
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if compositeKeys, err = sess.Collection("composite_keys"); err != nil {
if err != db.ErrCollectionDoesNotExist {
t.Fatal(err)
}
}
//n := rand.Intn(100000)
item := itemWithKey{
// "ABCDEF",
// strconv.Itoa(n),
SomeVal: "Some value",
}
if id, err = compositeKeys.Append(&item); err != nil {
t.Fatal(err)
}
// ids := id.([]interface{})
// if ids[0].(string) != item.Code {
// t.Fatal(`Keys must match.`)
// }
//
// if ids[1].(string) != item.UserID {
// t.Fatal(`Keys must match.`)
// }
// Using constraint interface.
res := compositeKeys.Find(itemWithKey{ID: id.(bson.ObjectId)})
var item2 itemWithKey
if item2.SomeVal == item.SomeVal {
t.Fatal(`Values must be different before query.`)
}
if err := res.One(&item2); err != nil {
t.Fatal(err)
}
if item2.SomeVal != item.SomeVal {
t.Fatal(`Values must be equal after query.`)
}
}
func TestGroup(t *testing.T) {
var err error
var sess db.Database
var stats db.Collection
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
type statsType struct {
Numeric int `db:"numeric"`
Value int `db:"value"`
}
defer sess.Close()
if stats, err = sess.Collection("stats_test"); err != nil {
t.Fatal(err)
}
// Truncating table.
if err = stats.Truncate(); err != nil {
t.Fatal(err)
}
// Adding row append.
for i := 0; i < 1000; i++ {
numeric, value := rand.Intn(10), rand.Intn(100)
if _, err = stats.Append(statsType{numeric, value}); err != nil {
t.Fatal(err)
}
}
// db.Func{"COUNT", 1},
// db.Func{"SUM", `value`},
// Testing GROUP BY
res := stats.Find().Select(
`numeric`,
db.Raw{`COUNT(1) AS counter`},
db.Raw{`SUM(value) AS total`},
).Group(`numeric`)
var results []map[string]interface{}
if err = res.All(&results); err != nil {
t.Fatal(err)
}
if len(results) != 10 {
t.Fatalf(`Expecting exactly 10 results, this could fail, but it's very unlikely to happen.`)
}
}
// Attempts to use functions within database queries.
func TestFunction(t *testing.T) {
var err error
var res db.Result
var sess db.Database
var artist db.Collection
var total uint64
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
row_s := struct {
Id uint64
Name string
}{}
res = artist.Find(db.Cond{"id NOT IN": []int{0, -1}})
if err = res.One(&row_s); err != nil {
t.Fatal(err)
}
if total, err = res.Count(); err != nil {
t.Fatal(err)
}
if total != 3 {
t.Fatalf("Expecting 3 items.")
}
res = artist.Find(db.Cond{"id": db.Func{"NOT IN", []int{0, -1}}})
if err = res.One(&row_s); err != nil {
t.Fatal(err)
}
if total, err = res.Count(); err != nil {
t.Fatal(err)
}
if total != 3 {
t.Fatalf("Expecting 3 items.")
}
res.Close()
}
// Attempts to add many different datatypes to a single row in a collection,
// then it tries to get the stored datatypes and check if the stored and the
// original values match.
func TestDataTypes(t *testing.T) {
var res db.Result
var sess db.Database
var dataTypes db.Collection
var err error
var id interface{}
var exists uint64
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
// Getting a pointer to the "data_types" collection.
if dataTypes, err = sess.Collection("data_types"); err != nil {
t.Fatal(err)
}
// Removing all data.
if err = dataTypes.Truncate(); err != nil {
t.Fatal(err)
}
// Appending our test subject.
if id, err = dataTypes.Append(testValues); err != nil {
t.Fatal(err)
}
// Defining our set.
res = dataTypes.Find(db.Cond{"id": id})
if exists, err = res.Count(); err != nil {
t.Fatal(err)
}
if exists == 0 {
t.Fatalf("Expecting an item.")
}
// Trying to dump the subject into an empty structure of the same type.
var item testValuesStruct
res.One(&item)
// The original value and the test subject must match.
if reflect.DeepEqual(item, testValues) == false {
t.Fatalf("Struct is different.")
}
}
// Attempts to test composite keys.
func TestCompositeKeys(t *testing.T) {
var err error
var sess db.Database
var compositeKeys db.Collection
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if compositeKeys, err = sess.Collection("composite_keys"); err != nil {
t.Fatal(err)
}
n := rand.Intn(100000)
item := itemWithKey{
"ABCDEF",
strconv.Itoa(n),
"Some value",
}
if _, err = compositeKeys.Append(&item); err != nil {
t.Fatal(err)
}
// Using constraint interface.
var item2 itemWithKey
if item2.SomeVal == item.SomeVal {
t.Fatal(`Values must be different before query.`)
}
res := compositeKeys.Find(item)
if err := res.One(&item2); err != nil {
t.Fatal(err)
}
if item2.SomeVal != item.SomeVal {
t.Fatal(`Values must be equal after query.`)
}
}
func main() {
var (
col db.Collection
)
col = SetupCollection()
//START SETUP OMIT
col.Append(User{
Id: 1,
FirstName: "John",
LastName: "Doe",
Age: 24,
})
col.Append(User{
Id: 2,
FirstName: "Jane",
LastName: "Doe",
Age: 52,
})
col.Append(User{
Id: 3,
FirstName: "Joe",
LastName: "Shmoe",
Age: 10,
})
//END SETUP OMIT
//START CODE OMIT
var users []User
col.Find(db.Or{
db.Cond{"last_name": "Doe"},
db.Cond{"age <": "12"},
}).
Limit(2).
Sort("-age").
All(&users)
fmt.Printf("%+v\n", users)
//END CODE OMIT
}
// Attempts to delete previously added rows.
func TestRemove(t *testing.T) {
var err error
var res db.Result
var sess db.Database
var artist db.Collection
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
// Getting the artist with id = 1
res = artist.Find(db.Cond{"id": 1})
// Trying to remove the row.
if err = res.Remove(); err != nil {
t.Fatal(err)
}
}
func main() {
var (
col db.Collection
user User
)
col = SetupCollection()
//START CODE OMIT
col.Append(User{Id: 1, FirstName: "John", LastName: "Doe"})
PrintTable(col)
col.Find(db.Cond{"id": 1}).One(&user)
user.FirstName = "James"
col.Find(user.Id).Update(user)
PrintTable(col)
col.Find(db.Cond{"id": user.Id}).Remove()
PrintTable(col)
//END CODE OMIT
}
// Attempts to fetch results one by one.
func TestResultFetch(t *testing.T) {
var err error
var res db.Result
var sess db.Database
var artist db.Collection
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
// Dumping into a map.
rowMap := map[string]interface{}{}
res = artist.Find()
for {
err = res.Next(&rowMap)
if err == db.ErrNoMoreRows {
break
}
if err == nil {
if to.Int64(rowMap["id"]) == 0 {
t.Fatalf("Expecting a not null ID.")
}
if to.String(rowMap["name"]) == "" {
t.Fatalf("Expecting a name.")
}
} else {
t.Fatal(err)
}
}
res.Close()
// Dumping into an struct with no tags.
rowStruct := struct {
ID uint64
Name string
}{}
res = artist.Find()
for {
err = res.Next(&rowStruct)
if err == db.ErrNoMoreRows {
break
}
if err == nil {
if rowStruct.ID == 0 {
t.Fatalf("Expecting a not null ID.")
}
if rowStruct.Name == "" {
t.Fatalf("Expecting a name.")
}
} else {
t.Fatal(err)
}
}
res.Close()
// Dumping into a tagged struct.
rowStruct2 := struct {
Value1 uint64 `field:"id"`
Value2 string `field:"name"`
}{}
res = artist.Find()
for {
err = res.Next(&rowStruct2)
if err == db.ErrNoMoreRows {
break
}
if err == nil {
if rowStruct2.Value1 == 0 {
t.Fatalf("Expecting a not null ID.")
}
if rowStruct2.Value2 == "" {
t.Fatalf("Expecting a name.")
}
} else {
t.Fatal(err)
}
}
res.Close()
// Dumping into an slice of maps.
allRowsMap := []map[string]interface{}{}
res = artist.Find()
if err = res.All(&allRowsMap); err != nil {
t.Fatal(err)
}
if len(allRowsMap) != 4 {
t.Fatalf("Expecting 4 items.")
}
for _, singleRowMap := range allRowsMap {
if to.Int64(singleRowMap["id"]) == 0 {
t.Fatalf("Expecting a not null ID.")
}
}
// Dumping into an slice of structs.
allRowsStruct := []struct {
ID uint64
Name string
}{}
res = artist.Find()
if err = res.All(&allRowsStruct); err != nil {
t.Fatal(err)
}
if len(allRowsStruct) != 4 {
t.Fatalf("Expecting 4 items.")
}
for _, singleRowStruct := range allRowsStruct {
if singleRowStruct.ID == 0 {
t.Fatalf("Expecting a not null ID.")
}
}
// Dumping into an slice of tagged structs.
allRowsStruct2 := []struct {
Value1 uint64 `field:"id"`
Value2 string `field:"name"`
}{}
res = artist.Find()
if err = res.All(&allRowsStruct2); err != nil {
t.Fatal(err)
}
if len(allRowsStruct2) != 4 {
t.Fatalf("Expecting 4 items.")
}
for _, singleRowStruct2 := range allRowsStruct2 {
if singleRowStruct2.Value1 == 0 {
t.Fatalf("Expecting a not null ID.")
}
}
}
// Attempts to append some data into the "artist" table.
func TestAppend(t *testing.T) {
var err error
var id interface{}
var sess db.Database
var artist db.Collection
var total uint64
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
// Attempt to append a map.
item_m := map[string]string{
"name": "Ozzie",
}
if id, err = artist.Append(item_m); err != nil {
t.Fatal(err)
}
if to.Int64(id) == 0 {
t.Fatalf("Expecting an ID.")
}
// Attempt to append a struct.
item_s := struct {
Name string `db:"name"`
}{
"Flea",
}
if id, err = artist.Append(item_s); err != nil {
t.Fatal(err)
}
if to.Int64(id) == 0 {
t.Fatalf("Expecting an ID.")
}
// Append to append a tagged struct.
item_t := struct {
ArtistName string `db:"name"`
}{
"Slash",
}
if id, err = artist.Append(item_t); err != nil {
t.Fatal(err)
}
if to.Int64(id) == 0 {
t.Fatalf("Expecting an ID.")
}
// Counting elements, must be exactly 3 elements.
if total, err = artist.Find().Count(); err != nil {
t.Fatal(err)
}
if total != 3 {
t.Fatalf("Expecting exactly 3 rows.")
}
}
// Attempts to test nullable fields.
func TestNullableFields(t *testing.T) {
var err error
var sess db.Database
var col db.Collection
var id interface{}
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
type testType struct {
ID int64 `db:"id,omitempty"`
NullStringTest sql.NullString `db:"_string"`
NullInt64Test sql.NullInt64 `db:"_int64"`
NullFloat64Test sql.NullFloat64 `db:"_float64"`
NullBoolTest sql.NullBool `db:"_bool"`
}
var test testType
if col, err = sess.Collection(`data_types`); err != nil {
t.Fatal(err)
}
if err = col.Truncate(); err != nil {
t.Fatal(err)
}
// Testing insertion of invalid nulls.
test = testType{
NullStringTest: sql.NullString{"", false},
NullInt64Test: sql.NullInt64{0, false},
NullFloat64Test: sql.NullFloat64{0.0, false},
NullBoolTest: sql.NullBool{false, false},
}
if id, err = col.Append(testType{}); err != nil {
t.Fatal(err)
}
// Testing fetching of invalid nulls.
if err = col.Find(db.Cond{"id": id}).One(&test); err != nil {
t.Fatal(err)
}
if test.NullInt64Test.Valid {
t.Fatalf(`Expecting invalid null.`)
}
if test.NullFloat64Test.Valid {
t.Fatalf(`Expecting invalid null.`)
}
if test.NullBoolTest.Valid {
t.Fatalf(`Expecting invalid null.`)
}
if test.NullStringTest.Valid {
t.Fatalf(`Expecting invalid null.`)
}
// Testing insertion of valid nulls.
test = testType{
NullStringTest: sql.NullString{"", true},
NullInt64Test: sql.NullInt64{0, true},
NullFloat64Test: sql.NullFloat64{0.0, true},
NullBoolTest: sql.NullBool{false, true},
}
if id, err = col.Append(test); err != nil {
t.Fatal(err)
}
// Testing fetching of valid nulls.
if err = col.Find(db.Cond{"id": id}).One(&test); err != nil {
t.Fatal(err)
}
if test.NullInt64Test.Valid == false {
t.Fatalf(`Expecting valid value.`)
}
if test.NullFloat64Test.Valid == false {
t.Fatalf(`Expecting valid value.`)
}
if test.NullBoolTest.Valid == false {
t.Fatalf(`Expecting valid value.`)
}
if test.NullStringTest.Valid == false {
t.Fatalf(`Expecting valid value.`)
}
}
// Attempts to append some data into the "artist" table.
func TestAppend(t *testing.T) {
var err error
var id interface{}
var sess db.Database
var artist db.Collection
var total uint64
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
// Attempt to append a map.
itemMap := map[string]string{
"name": "Ozzie",
}
if id, err = artist.Append(itemMap); err != nil {
t.Fatal(err)
}
if to.Int64(id) == 0 {
t.Fatalf("Expecting an ID.")
}
// Attempt to append a struct.
itemStruct := struct {
Name string `db:"name"`
}{
"Flea",
}
if id, err = artist.Append(itemStruct); err != nil {
t.Fatal(err)
}
if to.Int64(id) == 0 {
t.Fatalf("Expecting an ID.")
}
// Attempt to append a tagged struct.
itemStruct2 := struct {
ArtistName string `db:"name"`
}{
"Slash",
}
if id, err = artist.Append(itemStruct2); err != nil {
t.Fatal(err)
}
if to.Int64(id) == 0 {
t.Fatalf("Expecting an ID.")
}
// Attempt to append and update a private key
itemStruct3 := artistWithInt64Key{
Name: "Janus",
}
if _, err = artist.Append(&itemStruct3); err != nil {
t.Fatal(err)
}
if itemStruct3.id == 0 {
t.Fatalf("Expecting an ID.")
}
// Counting elements, must be exactly 4 elements.
if total, err = artist.Find().Count(); err != nil {
t.Fatal(err)
}
if total != 4 {
t.Fatalf("Expecting exactly 4 rows.")
}
}
func TestFibonacci(t *testing.T) {
var err error
var res db.Result
var total uint64
for _, wrapper := range wrappers {
if settings[wrapper] == nil {
t.Fatalf(`No such settings entry for wrapper %s.`, wrapper)
} else {
var sess db.Database
sess, err = db.Open(wrapper, *settings[wrapper])
if err != nil {
t.Fatalf(`Test for wrapper %s failed: %q`, wrapper, err)
}
defer sess.Close()
var col db.Collection
col, err = sess.Collection("fibonacci")
if err != nil {
if wrapper == `mongo` && err == db.ErrCollectionDoesNotExist {
// Expected error with mongodb.
} else {
t.Fatalf(`Could not use collection with wrapper %s: %q`, wrapper, err)
}
}
// Adding some items.
var i uint64
for i = 0; i < 10; i++ {
item := fibonacci{Input: i, Output: fib(i)}
_, err = col.Append(item)
if err != nil {
t.Fatalf(`Could not append item with wrapper %s: %q`, wrapper, err)
}
}
// Testing sorting by function.
res = col.Find(
// 5, 6, 7, 3
db.Or{
db.And{
db.Cond{"input >=": 5},
db.Cond{"input <=": 7},
},
db.Cond{"input": 3},
},
)
// Testing sort by function.
switch wrapper {
case `postgresql`:
res = res.Sort(db.Raw{`RANDOM()`})
case `sqlite`:
res = res.Sort(db.Raw{`RANDOM()`})
case `mysql`:
res = res.Sort(db.Raw{`RAND()`})
}
total, err = res.Count()
if err != nil {
t.Fatalf(`%s: %q`, wrapper, err)
}
if total != 4 {
t.Fatalf("%s: Expecting a count of 4, got %d.", wrapper, total)
}
// Find() with IN/$in
var whereIn db.Cond
switch wrapper {
case `mongo`:
whereIn = db.Cond{"input": db.Func{"$in", []int{3, 5, 6, 7}}}
default:
whereIn = db.Cond{"input": db.Func{"IN", []int{3, 5, 6, 7}}}
}
res = col.Find(whereIn).Sort("input")
total, err = res.Count()
if err != nil {
t.Fatalf(`%s: %q`, wrapper, err)
}
if total != 4 {
t.Fatalf(`Expecting a count of 4.`)
}
res = res.Skip(1).Limit(2)
for {
var item fibonacci
err = res.Next(&item)
if err == nil {
switch item.Input {
case 5:
case 6:
if fib(item.Input) != item.Output {
t.Fatalf(`Unexpected value in item with wrapper %s.`, wrapper)
}
default:
t.Fatalf(`Unexpected item: %v with wrapper %s.`, item, wrapper)
}
} else if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %q`, wrapper, err)
}
}
// Find() with range
res = col.Find(
// 5, 6, 7, 3
db.Or{
db.And{
db.Cond{"input >=": 5},
db.Cond{"input <=": 7},
},
db.Cond{"input": 3},
},
).Sort("-input")
if total, err = res.Count(); err != nil {
t.Fatalf(`%s: %q`, wrapper, err)
}
if total != 4 {
t.Fatalf(`Expecting a count of 4.`)
}
// Skipping.
res = res.Skip(1).Limit(2)
for {
var item fibonacci
err = res.Next(&item)
if err == nil {
switch item.Input {
case 5:
case 6:
if fib(item.Input) != item.Output {
t.Fatalf(`Unexpected value in item with wrapper %s.`, wrapper)
}
default:
t.Fatalf(`Unexpected item: %v with wrapper %s.`, item, wrapper)
}
} else if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %q`, wrapper, err)
}
}
if err = res.Remove(); err != nil {
t.Fatalf(`%s: %q`, wrapper, err)
}
if total, err = res.Count(); err != nil {
t.Fatalf(`%s: %q`, wrapper, err)
}
if total != 0 {
t.Fatalf(`%s: Unexpected count %d.`, wrapper, total)
}
res = col.Find()
total, err = res.Count()
if total != 6 {
t.Fatalf(`%s: Unexpected count %d.`, wrapper, total)
}
var items []fibonacci
err = res.All(&items)
if err != nil {
t.Fatalf(`%s: %q`, wrapper, err)
}
for _, item := range items {
switch item.Input {
case 0:
case 1:
case 2:
case 4:
case 8:
case 9:
if fib(item.Input) != item.Output {
t.Fatalf(`Unexpected value in item with wrapper %s.`, wrapper)
}
default:
t.Fatalf(`Unexpected item: %v with wrapper %s.`, item, wrapper)
}
}
err = res.Close()
if err != nil {
t.Errorf("Failed to close result %s: %q.", wrapper, err)
}
err = sess.Close()
if err != nil {
t.Errorf("Failed to close %s: %q.", wrapper, err)
}
}
}
}
func TestEven(t *testing.T) {
var err error
for _, wrapper := range wrappers {
if settings[wrapper] == nil {
t.Fatalf(`No such settings entry for wrapper %s.`, wrapper)
} else {
var sess db.Database
sess, err = db.Open(wrapper, *settings[wrapper])
if err != nil {
t.Fatalf(`Test for wrapper %s failed: %q`, wrapper, err)
}
defer sess.Close()
var col db.Collection
col, err = sess.Collection("is_even")
if err != nil {
if wrapper == `mongo` && err == db.ErrCollectionDoesNotExist {
// Expected error with mongodb.
} else {
t.Fatalf(`Could not use collection with wrapper %s: %q`, wrapper, err)
}
}
// Adding some items.
var i int
for i = 1; i < 100; i++ {
item := oddEven{Input: i, IsEven: even(i)}
_, err = col.Append(item)
if err != nil {
t.Fatalf(`Could not append item with wrapper %s: %q`, wrapper, err)
}
}
// Retrieving items
res := col.Find(db.Cond{"is_even": true})
for {
var item oddEven
err = res.Next(&item)
if err != nil {
if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %v`, wrapper, err)
}
}
if item.Input%2 != 0 {
t.Fatalf("Expecting even numbers with wrapper %s. Got: %v\n", wrapper, item)
}
}
if err = res.Remove(); err != nil {
t.Fatalf(`Could not remove with wrapper %s: %q`, wrapper, err)
}
res = col.Find()
for {
// Testing named inputs (using tags).
var item struct {
Value uint `db:"input" bson:"input"` // The "bson" tag is required by mgo.
}
err = res.Next(&item)
if err != nil {
if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %v`, wrapper, err)
}
}
if item.Value%2 == 0 {
t.Fatalf("Expecting odd numbers only with wrapper %s. Got: %v\n", wrapper, item)
}
}
for {
// Testing inline tag.
var item struct {
oddEven `db:",inline" bson:",inline"`
}
err = res.Next(&item)
if err != nil {
if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %v`, wrapper, err)
}
}
if item.Input%2 == 0 {
t.Fatalf("Expecting odd numbers only with wrapper %s. Got: %v\n", wrapper, item)
}
}
// Testing omision tag.
for {
var item struct {
Value uint `db:"-"`
}
err = res.Next(&item)
if err != nil {
if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %v`, wrapper, err)
}
}
if item.Value != 0 {
t.Fatalf("Expecting no data with wrapper %s. Got: %v\n", wrapper, item)
}
}
// Testing (deprecated) "field" tag.
for {
// Testing named inputs (using tags).
var item struct {
Value uint `field:"input"`
}
err = res.Next(&item)
if err != nil {
if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %v`, wrapper, err)
}
}
if item.Value%2 == 0 {
t.Fatalf("Expecting no data with wrapper %s. Got: %v\n", wrapper, item)
}
}
}
}
}
func TestExplicitAndDefaultMapping(t *testing.T) {
var err error
var col db.Collection
var sess db.Database
var res db.Result
var testE mapE
var testN mapN
for _, wrapper := range wrappers {
if settings[wrapper] == nil {
t.Fatalf(`No such settings entry for wrapper %s.`, wrapper)
} else {
if sess, err = db.Open(wrapper, *settings[wrapper]); err != nil {
t.Fatalf(`Test for wrapper %s failed: %q`, wrapper, err)
}
defer sess.Close()
col, err = sess.Collection("Case_Test")
if col, err = sess.Collection("CaSe_TesT"); err != nil {
if wrapper == `mongo` && err == db.ErrCollectionDoesNotExist {
// Nothing, it's expected.
} else {
t.Fatal(err)
}
}
if err = col.Truncate(); err != nil {
if wrapper == `mongo` {
// Nothing, it's expected.
} else {
t.Fatal(err)
}
}
// Testing explicit mapping.
testE = mapE{
CaseTest: "Hello!",
}
if _, err = col.Append(testE); err != nil {
t.Fatal(err)
}
res = col.Find(db.Cond{"Case_Test": "Hello!"})
if wrapper == `ql` {
res = res.Select(`id() as ID`, `Case_Test`)
}
if err = res.One(&testE); err != nil {
t.Fatal(err)
}
if wrapper == `mongo` {
if testE.MongoID.Valid() == false {
t.Fatalf("Expecting an ID.")
}
} else {
if testE.ID == 0 {
t.Fatalf("Expecting an ID.")
}
}
// Testing default mapping.
testN = mapN{
Casetest: "World!",
}
if _, err = col.Append(testN); err != nil {
t.Fatal(err)
}
if wrapper == `mongo` {
// We don't have this kind of control with mongodb.
res = col.Find(db.Cond{"casetest": "World!"})
} else {
res = col.Find(db.Cond{"Case_Test": "World!"})
}
if wrapper == `ql` {
res = res.Select(`id() as ID`, `Case_Test`)
}
if err = res.One(&testN); err != nil {
t.Fatal(err)
}
if wrapper == `mongo` {
if testN.MongoID.Valid() == false {
t.Fatalf("Expecting an ID.")
}
} else {
if testN.ID == 0 {
t.Fatalf("Expecting an ID.")
}
}
}
}
}
// Attempts to modify previously added rows.
func TestUpdate(t *testing.T) {
var err error
var sess db.Database
var artist db.Collection
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
// Defining destination struct
value := struct {
ID uint64
Name string
}{}
// Getting the first artist.
res := artist.Find(db.Cond{"id !=": 0}).Limit(1)
if err = res.One(&value); err != nil {
t.Fatal(err)
}
// Updating set with a map
rowMap := map[string]interface{}{
"name": strings.ToUpper(value.Name),
}
if err = res.Update(rowMap); err != nil {
t.Fatal(err)
}
// Pulling it again.
if err = res.One(&value); err != nil {
t.Fatal(err)
}
// Verifying.
if value.Name != rowMap["name"] {
t.Fatalf("Expecting a modification.")
}
// Updating set with a struct
rowStruct := struct {
Name string
}{strings.ToLower(value.Name)}
if err = res.Update(rowStruct); err != nil {
t.Fatal(err)
}
// Pulling it again.
if err = res.One(&value); err != nil {
t.Fatal(err)
}
// Verifying
if value.Name != rowStruct.Name {
t.Fatalf("Expecting a modification.")
}
// Updating set with a tagged struct
rowStruct2 := struct {
Value1 string `db:"name"`
}{strings.Replace(value.Name, "z", "Z", -1)}
if err = res.Update(rowStruct2); err != nil {
t.Fatal(err)
}
// Pulling it again.
if err = res.One(&value); err != nil {
t.Fatal(err)
}
// Verifying
if value.Name != rowStruct2.Value1 {
t.Fatalf("Expecting a modification.")
}
}
func TestGroup(t *testing.T) {
var err error
var sess db.Database
var stats db.Collection
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
type stats_t struct {
Numeric int `db:"numeric" bson:"numeric"`
Value int `db:"value" bson:"value"`
}
defer sess.Close()
if stats, err = sess.Collection("stats_test"); err != nil {
if err != db.ErrCollectionDoesNotExist {
t.Fatal(err)
}
}
// Truncating table.
if err == nil {
if err = stats.Truncate(); err != nil {
t.Fatal(err)
}
}
// Adding row append.
for i := 0; i < 1000; i++ {
numeric, value := rand.Intn(10), rand.Intn(100)
if _, err = stats.Append(stats_t{numeric, value}); err != nil {
t.Fatal(err)
}
}
// db.stats_test.group({key: {numeric: true}, initial: {sum: 0}, reduce: function(doc, prev) { prev.sum += 1}});
// Testing GROUP BY
res := stats.Find().Group(bson.M{
"key": bson.M{"numeric": true},
"initial": bson.M{"sum": 0},
"reduce": `function(doc, prev) { prev.sum += 1}`,
})
var results []map[string]interface{}
err = res.All(&results)
// Currently not supported.
if err != db.ErrUnsupported {
t.Fatal(err)
}
//if len(results) != 10 {
// t.Fatalf(`Expecting exactly 10 results, this could fail, but it's very unlikely to happen.`)
//}
}
// Attempts to use functions within database queries.
func TestFunction(t *testing.T) {
var err error
var res db.Result
var sess db.Database
var artist db.Collection
var total uint64
var rowMap map[string]interface{}
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
rowStruct := struct {
ID uint64
Name string
}{}
res = artist.Find(db.Cond{"id NOT IN": []int{0, -1}})
if err = res.One(&rowStruct); err != nil {
t.Fatal(err)
}
if total, err = res.Count(); err != nil {
t.Fatal(err)
}
if total != 4 {
t.Fatalf("Expecting 4 items.")
}
// Testing conditions
res = artist.Find(db.Cond{"id": db.Func{"NOT IN", []int{0, -1}}})
if err = res.One(&rowStruct); err != nil {
t.Fatal(err)
}
if total, err = res.Count(); err != nil {
t.Fatal(err)
}
if total != 4 {
t.Fatalf("Expecting 4 items.")
}
// Testing DISTINCT (function)
res = artist.Find().Select(
db.Func{`DISTINCT`, `name`},
)
if err = res.One(&rowMap); err != nil {
t.Fatal(err)
}
if total, err = res.Count(); err != nil {
t.Fatal(err)
}
if total != 4 {
t.Fatalf("Expecting 4 items.")
}
// Testing DISTINCT (raw)
res = artist.Find().Select(
db.Raw{`DISTINCT(name)`},
)
if err = res.One(&rowMap); err != nil {
t.Fatal(err)
}
if total, err = res.Count(); err != nil {
t.Fatal(err)
}
if total != 4 {
t.Fatalf("Expecting 4 items.")
}
res.Close()
}
// Attempts to test database transactions.
func TestTransactionsAndRollback(t *testing.T) {
var sess db.Database
var err error
type artistType struct {
ID int64 `db:"id,omitempty"`
Name string `db:"name"`
}
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
// Simple transaction that should not fail.
var tx db.Tx
if tx, err = sess.Transaction(); err != nil {
t.Fatal(err)
}
var artist db.Collection
if artist, err = tx.Collection("artist"); err != nil {
t.Fatal(err)
}
if err = artist.Truncate(); err != nil {
t.Fatal(err)
}
// Simple transaction
if _, err = artist.Append(artistType{1, "First"}); err != nil {
t.Fatal(err)
}
if err = tx.Commit(); err != nil {
t.Fatal(err)
}
// Attempt to use the same transaction should fail.
if _, err = tx.Collection("artist"); err == nil {
t.Fatalf("Illegal, transaction has already been commited.")
}
// Use another transaction.
if tx, err = sess.Transaction(); err != nil {
t.Fatal(err)
}
if artist, err = tx.Collection("artist"); err != nil {
t.Fatal(err)
}
// Won't fail.
if _, err = artist.Append(artistType{2, "Second"}); err != nil {
t.Fatal(err)
}
// Won't fail.
if _, err = artist.Append(artistType{3, "Third"}); err != nil {
t.Fatal(err)
}
// Will fail.
if _, err = artist.Append(artistType{1, "Duplicated"}); err == nil {
t.Fatal("Should have failed, as we have already inserted ID 1.")
}
if err = tx.Rollback(); err != nil {
t.Fatal(err)
}
if err = tx.Commit(); err == nil {
t.Fatalf("Should have failed, as we've already rolled back.")
}
// Let's verify we still have one element.
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
var count uint64
if count, err = artist.Find().Count(); err != nil {
t.Fatal(err)
}
if count != 1 {
t.Fatalf("Expecting only one element.")
}
// Attempt to add some rows.
if tx, err = sess.Transaction(); err != nil {
t.Fatal(err)
}
if artist, err = tx.Collection("artist"); err != nil {
t.Fatal(err)
}
// Won't fail.
if _, err = artist.Append(artistType{2, "Second"}); err != nil {
t.Fatal(err)
}
// Won't fail.
if _, err = artist.Append(artistType{3, "Third"}); err != nil {
t.Fatal(err)
}
// Then rollback for no reason.
if err = tx.Rollback(); err != nil {
t.Fatal(err)
}
if err = tx.Commit(); err == nil {
t.Fatalf("Should have failed, as we've already rolled back.")
}
// Let's verify we still have one element.
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
if count, err = artist.Find().Count(); err != nil {
t.Fatal(err)
}
if count != 1 {
t.Fatalf("Expecting only one element.")
}
// Attempt to add some rows.
if tx, err = sess.Transaction(); err != nil {
t.Fatal(err)
}
if artist, err = tx.Collection("artist"); err != nil {
t.Fatal(err)
}
// Won't fail.
if _, err = artist.Append(artistType{2, "Second"}); err != nil {
t.Fatal(err)
}
// Won't fail.
if _, err = artist.Append(artistType{3, "Third"}); err != nil {
t.Fatal(err)
}
if err = tx.Commit(); err != nil {
t.Fatal(err)
}
if err = tx.Rollback(); err == nil {
t.Fatalf("Should have failed, as we've already commited.")
}
// Let's verify we have 3 rows.
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
if count, err = artist.Find().Count(); err != nil {
t.Fatal(err)
}
if count != 3 {
t.Fatalf("Expecting 3 elements.")
}
}
// Attempts to use SQL raw statements.
func TestRawRelations(t *testing.T) {
var sess db.Database
var err error
var artist db.Collection
var publication db.Collection
var review db.Collection
type artistType struct {
ID int64 `db:"id,omitempty"`
Name string `db:"name"`
}
type publicationType struct {
ID int64 `db:"id,omitempty"`
Title string `db:"title"`
AuthorID int64 `db:"author_id"`
}
type reviewType struct {
ID int64 `db:"id,omitempty"`
PublicationID int64 `db:"publication_id"`
Name string `db:"name"`
Comments string `db:"comments"`
Created time.Time `db:"created"`
}
if sess, err = db.Open(Adapter, settings); err != nil {
t.Fatal(err)
}
defer sess.Close()
// Artist collection.
if artist, err = sess.Collection("artist"); err != nil {
t.Fatal(err)
}
if err = artist.Truncate(); err != nil {
t.Fatal(err)
}
// Publication collection.
if publication, err = sess.Collection("publication"); err != nil {
t.Fatal(err)
}
if err = publication.Truncate(); err != nil {
t.Fatal(err)
}
// Review collection.
if review, err = sess.Collection("review"); err != nil {
t.Fatal(err)
}
if err = review.Truncate(); err != nil {
t.Fatal(err)
}
// Adding some artists.
var miyazakiID interface{}
miyazaki := artistType{Name: `Hayao Miyazaki`}
if miyazakiID, err = artist.Append(miyazaki); err != nil {
t.Fatal(err)
}
miyazaki.ID = miyazakiID.(int64)
var asimovID interface{}
asimov := artistType{Name: `Isaac Asimov`}
if asimovID, err = artist.Append(asimov); err != nil {
t.Fatal(err)
}
var marquezID interface{}
marquez := artistType{Name: `Gabriel García Márquez`}
if marquezID, err = artist.Append(marquez); err != nil {
t.Fatal(err)
}
// Adding some publications.
publication.Append(publicationType{
Title: `Tonari no Totoro`,
AuthorID: miyazakiID.(int64),
})
publication.Append(publicationType{
Title: `Howl's Moving Castle`,
AuthorID: miyazakiID.(int64),
})
publication.Append(publicationType{
Title: `Ponyo`,
AuthorID: miyazakiID.(int64),
})
publication.Append(publicationType{
Title: `Memoria de mis Putas Tristes`,
AuthorID: marquezID.(int64),
})
publication.Append(publicationType{
Title: `El Coronel no tiene quien le escriba`,
AuthorID: marquezID.(int64),
})
publication.Append(publicationType{
Title: `El Amor en los tiempos del Cólera`,
AuthorID: marquezID.(int64),
})
publication.Append(publicationType{
Title: `I, Robot`,
AuthorID: asimovID.(int64),
})
var foundationID interface{}
foundationID, err = publication.Append(publicationType{
Title: `Foundation`,
AuthorID: asimovID.(int64),
})
if err != nil {
t.Fatal(err)
}
publication.Append(publicationType{
Title: `The Robots of Dawn`,
AuthorID: asimovID.(int64),
})
// Adding reviews for foundation.
review.Append(reviewType{
PublicationID: foundationID.(int64),
Name: "John Doe",
Comments: "I love The Foundation series.",
Created: time.Now(),
})
review.Append(reviewType{
PublicationID: foundationID.(int64),
Name: "Edr Pls",
Comments: "The Foundation series made me fall in love with Isaac Asimov.",
Created: time.Now(),
})
// Exec'ing a raw query.
var artistPublication db.Collection
if artistPublication, err = sess.Collection(`artist AS a`, `publication AS p`); err != nil {
t.Fatal(err)
}
res := artistPublication.Find(
db.Raw{`a.id = p.author_id`},
).Select(
"p.id",
"p.title as publication_title",
"a.name AS artist_name",
)
type artistPublicationType struct {
ID int64 `db:"id"`
PublicationTitle string `db:"publication_title"`
ArtistName string `db:"artist_name"`
}
all := []artistPublicationType{}
if err = res.All(&all); err != nil {
t.Fatal(err)
}
if len(all) != 9 {
t.Fatalf("Expecting some rows.")
}
}
func TestFinds(t *testing.T) {
var err error
for _, wrapper := range wrappers {
if settings[wrapper] == nil {
t.Fatalf(`No such settings entry for wrapper %s.`, wrapper)
} else {
var sess db.Database
sess, err = db.Open(wrapper, *settings[wrapper])
if err != nil {
t.Fatalf(`Test for wrapper %s failed: %s`, wrapper, err.Error())
}
var col db.Collection
col, err = sess.Collection("fibonacci")
if err != nil {
if wrapper == `mongo` && err == db.ErrCollectionDoesNotExists {
// Expected error with mongodb.
} else {
t.Fatalf(`Could not use collection with wrapper %s: %s`, wrapper, err.Error())
}
}
// Adding some items.
var i uint64
for i = 0; i < 10; i++ {
item := Fibonacci{i, fib(i)}
_, err = col.Append(item)
if err != nil {
t.Fatalf(`Could not append item with wrapper %s: %s`, wrapper, err.Error())
}
}
// Querying range.
res := col.Find(
// 5, 6, 7, 3
db.Or{
db.And{
db.Cond{"input >=": 5},
db.Cond{"input <=": 7},
},
db.Cond{"input": 3},
},
).Skip(1).Limit(2).Sort("-input")
var total uint64
total, err = res.Count()
if err != nil {
t.Fatalf(`%s: %s`, wrapper, err.Error())
}
if total != 4 {
t.Fatalf(`Expecting a count of 4.`)
}
for {
var item Fibonacci
err = res.Next(&item)
if err == nil {
switch item.Input {
case 5:
case 6:
if fib(item.Input) != item.Output {
t.Fatalf(`Unexpected value in item with wrapper %s.`, wrapper)
}
default:
t.Fatalf(`Unexpected item: %v with wrapper %s.`, item, wrapper)
}
} else if err == db.ErrNoMoreRows {
break
} else {
t.Fatalf(`%s: %s`, wrapper, err.Error())
}
}
err = res.Remove()
if err != nil {
t.Fatalf(`%s: %s`, wrapper, err.Error())
}
total, err = res.Count()
if total != 0 {
t.Fatalf(`Unexpected count %s.`, wrapper)
}
res = col.Find()
total, err = res.Count()
if total != 6 {
t.Fatalf(`Unexpected count %s.`, wrapper)
}
var items []Fibonacci
err = res.All(&items)
if err != nil {
t.Fatalf(`%s: %s`, wrapper, err.Error())
}
for _, item := range items {
switch item.Input {
case 0:
case 1:
case 2:
case 4:
case 8:
case 9:
if fib(item.Input) != item.Output {
t.Fatalf(`Unexpected value in item with wrapper %s.`, wrapper)
}
default:
t.Fatalf(`Unexpected item: %v with wrapper %s.`, item, wrapper)
}
}
err = res.Close()
if err != nil {
t.Errorf("Failed to close result %s: %s.", wrapper, err.Error())
}
err = sess.Close()
if err != nil {
t.Errorf("Failed to close %s: %s.", wrapper, err.Error())
}
}
}
}