Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/channels/store/searchtest/testlib.go

@@ -0,0 +1,78 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package searchtest
+
+import (
+	"testing"
+
+	"github.com/mattermost/mattermost-server/v6/server/channels/store"
+	"github.com/mattermost/mattermost-server/v6/server/channels/utils"
+)
+
+const (
+	EngineAll           = "all"
+	EngineMySql         = "mysql"
+	EnginePostgres      = "postgres"
+	EngineElasticSearch = "elasticsearch"
+	EngineBleve         = "bleve"
+)
+
+type SearchTestEngine struct {
+	Driver     string
+	BeforeTest func(*testing.T, store.Store)
+	AfterTest  func(*testing.T, store.Store)
+}
+
+type searchTest struct {
+	Name        string
+	Fn          func(*testing.T, *SearchTestHelper)
+	Tags        []string
+	Skip        bool
+	SkipMessage string
+}
+
+func filterTestsByTag(tests []searchTest, tags ...string) []searchTest {
+	filteredTests := []searchTest{}
+	for _, test := range tests {
+		if utils.StringInSlice(EngineAll, test.Tags) {
+			filteredTests = append(filteredTests, test)
+			continue
+		}
+		for _, tag := range tags {
+			if utils.StringInSlice(tag, test.Tags) {
+				filteredTests = append(filteredTests, test)
+				break
+			}
+		}
+	}
+
+	return filteredTests
+}
+
+func runTestSearch(t *testing.T, testEngine *SearchTestEngine, tests []searchTest, th *SearchTestHelper) {
+	if testing.Short() {
+		t.Skip("Skipping advanced search test")
+		return
+	}
+
+	filteredTests := filterTestsByTag(tests, testEngine.Driver)
+
+	for _, test := range filteredTests {
+
+		if test.Skip {
+			t.Log("SKIPPED: " + test.Name + ". Reason: " + test.SkipMessage)
+			continue
+		}
+
+		if testEngine.BeforeTest != nil {
+			testEngine.BeforeTest(t, th.Store)
+		}
+		testName := test.Name
+		testFn := test.Fn
+		t.Run(testName, func(t *testing.T) { testFn(t, th) })
+		if testEngine.AfterTest != nil {
+			testEngine.AfterTest(t, th.Store)
+		}
+	}
+}