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// Copyright 2016 Qiang Xue. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package dbx
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestQB_BuildSelect(t *testing.T) {
tests := []struct {
tag string
cols []string
distinct bool
option string
expected string
}{
{"empty", []string{}, false, "", "SELECT *"},
{"empty distinct", []string{}, true, "CALC_ROWS", "SELECT DISTINCT CALC_ROWS *"},
{"multi-columns", []string{"name", "DOB1"}, false, "", "SELECT `name`, `DOB1`"},
{"aliased columns", []string{"name As Name", "users.last_name", "u.first1 first"}, false, "", "SELECT `name` AS `Name`, `users`.`last_name`, `u`.`first1` AS `first`"},
}
db := getDB()
qb := db.QueryBuilder()
for _, test := range tests {
s := qb.BuildSelect(test.cols, test.distinct, test.option)
assert.Equal(t, test.expected, s, test.tag)
}
assert.Equal(t, qb.(*BaseQueryBuilder).DB(), db)
}
func TestQB_BuildFrom(t *testing.T) {
tests := []struct {
tag string
tables []string
expected string
}{
{"empty", []string{}, ""},
{"single table", []string{"users"}, "FROM `users`"},
{"multiple tables", []string{"users", "posts"}, "FROM `users`, `posts`"},
{"table alias", []string{"users u", "posts as p"}, "FROM `users` `u`, `posts` `p`"},
{"table prefix and alias", []string{"pub.users p.u", "posts AS p1"}, "FROM `pub`.`users` `p.u`, `posts` `p1`"},
}
qb := getDB().QueryBuilder()
for _, test := range tests {
s := qb.BuildFrom(test.tables)
assert.Equal(t, test.expected, s, test.tag)
}
}
func TestQB_BuildGroupBy(t *testing.T) {
tests := []struct {
tag string
cols []string
expected string
}{
{"empty", []string{}, ""},
{"single column", []string{"name"}, "GROUP BY `name`"},
{"multiple columns", []string{"name", "age"}, "GROUP BY `name`, `age`"},
}
qb := getDB().QueryBuilder()
for _, test := range tests {
s := qb.BuildGroupBy(test.cols)
assert.Equal(t, test.expected, s, test.tag)
}
}
func TestQB_BuildWhere(t *testing.T) {
tests := []struct {
exp Expression
expected string
count int
tag string
}{
{HashExp{"age": 30, "dept": "marketing"}, "WHERE `age`={:p0} AND `dept`={:p1}", 2, "t1"},
{nil, "", 0, "t2"},
{NewExp(""), "", 0, "t3"},
}
qb := getDB().QueryBuilder()
for _, test := range tests {
params := Params{}
s := qb.BuildWhere(test.exp, params)
assert.Equal(t, test.expected, s, test.tag)
assert.Equal(t, test.count, len(params), test.tag)
}
}
func TestQB_BuildHaving(t *testing.T) {
tests := []struct {
exp Expression
expected string
count int
tag string
}{
{HashExp{"age": 30, "dept": "marketing"}, "HAVING `age`={:p0} AND `dept`={:p1}", 2, "t1"},
{nil, "", 0, "t2"},
{NewExp(""), "", 0, "t3"},
}
qb := getDB().QueryBuilder()
for _, test := range tests {
params := Params{}
s := qb.BuildHaving(test.exp, params)
assert.Equal(t, test.expected, s, test.tag)
assert.Equal(t, test.count, len(params), test.tag)
}
}
func TestQB_BuildOrderBy(t *testing.T) {
tests := []struct {
tag string
cols []string
expected string
}{
{"empty", []string{}, ""},
{"single column", []string{"name"}, "ORDER BY `name`"},
{"multiple columns", []string{"name ASC", "age DESC", "id desc"}, "ORDER BY `name` ASC, `age` DESC, `id` desc"},
}
qb := getDB().QueryBuilder().(*BaseQueryBuilder)
for _, test := range tests {
s := qb.BuildOrderBy(test.cols)
assert.Equal(t, test.expected, s, test.tag)
}
}
func TestQB_BuildLimit(t *testing.T) {
tests := []struct {
tag string
limit, offset int64
expected string
}{
{"t1", 10, -1, "LIMIT 10"},
{"t2", 10, 0, "LIMIT 10"},
{"t3", 10, 2, "LIMIT 10 OFFSET 2"},
{"t4", 0, 2, "LIMIT 0 OFFSET 2"},
{"t5", -1, 2, "LIMIT 9223372036854775807 OFFSET 2"},
{"t6", -1, 0, ""},
}
qb := getDB().QueryBuilder().(*BaseQueryBuilder)
for _, test := range tests {
s := qb.BuildLimit(test.limit, test.offset)
assert.Equal(t, test.expected, s, test.tag)
}
}
func TestQB_BuildOrderByAndLimit(t *testing.T) {
qb := getDB().QueryBuilder()
sql := qb.BuildOrderByAndLimit("SELECT *", []string{"name"}, 10, 2)
expected := "SELECT * ORDER BY `name` LIMIT 10 OFFSET 2"
assert.Equal(t, sql, expected, "t1")
sql = qb.BuildOrderByAndLimit("SELECT *", nil, -1, -1)
expected = "SELECT *"
assert.Equal(t, sql, expected, "t2")
sql = qb.BuildOrderByAndLimit("SELECT *", []string{"name"}, -1, -1)
expected = "SELECT * ORDER BY `name`"
assert.Equal(t, sql, expected, "t3")
sql = qb.BuildOrderByAndLimit("SELECT *", nil, 10, -1)
expected = "SELECT * LIMIT 10"
assert.Equal(t, sql, expected, "t4")
}
func TestQB_BuildJoin(t *testing.T) {
qb := getDB().QueryBuilder()
params := Params{}
ji := JoinInfo{"LEFT JOIN", "users u", NewExp("id=u.id", Params{"id": 1})}
sql := qb.BuildJoin([]JoinInfo{ji}, params)
expected := "LEFT JOIN `users` `u` ON id=u.id"
assert.Equal(t, sql, expected, "BuildJoin@1")
assert.Equal(t, len(params), 1, "len(params)@1")
params = Params{}
ji = JoinInfo{"INNER JOIN", "users", nil}
sql = qb.BuildJoin([]JoinInfo{ji}, params)
expected = "INNER JOIN `users`"
assert.Equal(t, sql, expected, "BuildJoin@2")
assert.Equal(t, len(params), 0, "len(params)@2")
sql = qb.BuildJoin([]JoinInfo{}, nil)
expected = ""
assert.Equal(t, sql, expected, "BuildJoin@3")
ji = JoinInfo{"INNER JOIN", "users", nil}
ji2 := JoinInfo{"LEFT JOIN", "posts", nil}
sql = qb.BuildJoin([]JoinInfo{ji, ji2}, nil)
expected = "INNER JOIN `users` LEFT JOIN `posts`"
assert.Equal(t, sql, expected, "BuildJoin@3")
}
func TestQB_BuildUnion(t *testing.T) {
db := getDB()
qb := db.QueryBuilder()
params := Params{}
ui := UnionInfo{false, db.NewQuery("SELECT names").Bind(Params{"id": 1})}
sql := qb.BuildUnion([]UnionInfo{ui}, params)
expected := "UNION (SELECT names)"
assert.Equal(t, sql, expected, "BuildUnion@1")
assert.Equal(t, len(params), 1, "len(params)@1")
params = Params{}
ui = UnionInfo{true, db.NewQuery("SELECT names")}
sql = qb.BuildUnion([]UnionInfo{ui}, params)
expected = "UNION ALL (SELECT names)"
assert.Equal(t, sql, expected, "BuildUnion@2")
assert.Equal(t, len(params), 0, "len(params)@2")
sql = qb.BuildUnion([]UnionInfo{}, nil)
expected = ""
assert.Equal(t, sql, expected, "BuildUnion@3")
ui = UnionInfo{true, db.NewQuery("SELECT names")}
ui2 := UnionInfo{false, db.NewQuery("SELECT ages")}
sql = qb.BuildUnion([]UnionInfo{ui, ui2}, nil)
expected = "UNION ALL (SELECT names) UNION (SELECT ages)"
assert.Equal(t, sql, expected, "BuildUnion@4")
}
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