Decouple unit test, remove intermediate unittestbridge package (#17662)

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

models/unittest/unit_tests.go

@@ -0,0 +1,139 @@
+// Copyright 2016 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package unittest
+
+import (
+	"math"
+
+	"code.gitea.io/gitea/models/db"
+
+	"github.com/stretchr/testify/assert"
+	"xorm.io/builder"
+)
+
+// Code in this file is mainly used by unittest.CheckConsistencyFor, which is not in the unit test for various reasons.
+// In the future if we can decouple CheckConsistencyFor into separate unit test code, then this file can be moved into unittest package too.
+
+// NonexistentID an ID that will never exist
+const NonexistentID = int64(math.MaxInt64)
+
+type testCond struct {
+	query interface{}
+	args  []interface{}
+}
+
+// Cond create a condition with arguments for a test
+func Cond(query interface{}, args ...interface{}) interface{} {
+	return &testCond{query: query, args: args}
+}
+
+func whereConditions(e db.Engine, conditions []interface{}) db.Engine {
+	for _, condition := range conditions {
+		switch cond := condition.(type) {
+		case *testCond:
+			e = e.Where(cond.query, cond.args...)
+		default:
+			e = e.Where(cond)
+		}
+	}
+	return e
+}
+
+// LoadBeanIfExists loads beans from fixture database if exist
+func LoadBeanIfExists(bean interface{}, conditions ...interface{}) (bool, error) {
+	e := db.GetEngine(db.DefaultContext)
+	return whereConditions(e, conditions).Get(bean)
+}
+
+// BeanExists for testing, check if a bean exists
+func BeanExists(t assert.TestingT, bean interface{}, conditions ...interface{}) bool {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	assert.NoError(t, err)
+	return exists
+}
+
+// AssertExistsAndLoadBean assert that a bean exists and load it from the test database
+func AssertExistsAndLoadBean(t assert.TestingT, bean interface{}, conditions ...interface{}) interface{} {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	assert.NoError(t, err)
+	assert.True(t, exists,
+		"Expected to find %+v (of type %T, with conditions %+v), but did not",
+		bean, bean, conditions)
+	return bean
+}
+
+// AssertExistsAndLoadMap assert that a row exists and load it from the test database
+func AssertExistsAndLoadMap(t assert.TestingT, table string, conditions ...interface{}) map[string]string {
+	e := db.GetEngine(db.DefaultContext).Table(table)
+	res, err := whereConditions(e, conditions).Query()
+	assert.NoError(t, err)
+	assert.True(t, len(res) == 1,
+		"Expected to find one row in %s (with conditions %+v), but found %d",
+		table, conditions, len(res),
+	)
+
+	if len(res) == 1 {
+		rec := map[string]string{}
+		for k, v := range res[0] {
+			rec[k] = string(v)
+		}
+		return rec
+	}
+	return nil
+}
+
+// GetCount get the count of a bean
+func GetCount(t assert.TestingT, bean interface{}, conditions ...interface{}) int {
+	e := db.GetEngine(db.DefaultContext)
+	count, err := whereConditions(e, conditions).Count(bean)
+	assert.NoError(t, err)
+	return int(count)
+}
+
+// AssertNotExistsBean assert that a bean does not exist in the test database
+func AssertNotExistsBean(t assert.TestingT, bean interface{}, conditions ...interface{}) {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	assert.NoError(t, err)
+	assert.False(t, exists)
+}
+
+// AssertExistsIf asserts that a bean exists or does not exist, depending on
+// what is expected.
+func AssertExistsIf(t assert.TestingT, expected bool, bean interface{}, conditions ...interface{}) {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	assert.NoError(t, err)
+	assert.Equal(t, expected, exists)
+}
+
+// AssertSuccessfulInsert assert that beans is successfully inserted
+func AssertSuccessfulInsert(t assert.TestingT, beans ...interface{}) {
+	err := db.Insert(db.DefaultContext, beans...)
+	assert.NoError(t, err)
+}
+
+// AssertCount assert the count of a bean
+func AssertCount(t assert.TestingT, bean, expected interface{}) {
+	assert.EqualValues(t, expected, GetCount(t, bean))
+}
+
+// AssertInt64InRange assert value is in range [low, high]
+func AssertInt64InRange(t assert.TestingT, low, high, value int64) {
+	assert.True(t, value >= low && value <= high,
+		"Expected value in range [%d, %d], found %d", low, high, value)
+}
+
+// GetCountByCond get the count of database entries matching bean
+func GetCountByCond(t assert.TestingT, tableName string, cond builder.Cond) int64 {
+	e := db.GetEngine(db.DefaultContext)
+	count, err := e.Table(tableName).Where(cond).Count()
+	assert.NoError(t, err)
+	return count
+}
+
+// AssertCountByCond test the count of database entries matching bean
+func AssertCountByCond(t assert.TestingT, tableName string, cond builder.Cond, expected int) {
+	assert.EqualValues(t, expected, GetCountByCond(t, tableName, cond),
+		"Failed consistency test, the counted bean (of table %s) was %+v", tableName, cond)
+}