Move sql store code into store/sqlstore package (#7502)

* move sql store code into store/sqlstore package

* move non-sql constants back up to store

* fix api test

* derp

store/sqlstore/license_store_test.go

@@ -0,0 +1,55 @@
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package sqlstore
+
+import (
+	"testing"
+
+	"github.com/mattermost/mattermost-server/model"
+"github.com/mattermost/mattermost-server/store"
+)
+
+func TestLicenseStoreSave(t *testing.T) {
+	ss := Setup()
+
+	l1 := model.LicenseRecord{}
+	l1.Id = model.NewId()
+	l1.Bytes = "junk"
+
+	if err := (<-ss.License().Save(&l1)).Err; err != nil {
+		t.Fatal("couldn't save license record", err)
+	}
+
+	if err := (<-ss.License().Save(&l1)).Err; err != nil {
+		t.Fatal("shouldn't fail on trying to save existing license record", err)
+	}
+
+	l1.Id = ""
+
+	if err := (<-ss.License().Save(&l1)).Err; err == nil {
+		t.Fatal("should fail on invalid license", err)
+	}
+}
+
+func TestLicenseStoreGet(t *testing.T) {
+	ss := Setup()
+
+	l1 := model.LicenseRecord{}
+	l1.Id = model.NewId()
+	l1.Bytes = "junk"
+
+	store.Must(ss.License().Save(&l1))
+
+	if r := <-ss.License().Get(l1.Id); r.Err != nil {
+		t.Fatal("couldn't get license", r.Err)
+	} else {
+		if r.Data.(*model.LicenseRecord).Bytes != l1.Bytes {
+			t.Fatal("license bytes didn't match")
+		}
+	}
+
+	if err := (<-ss.License().Get("missing")).Err; err == nil {
+		t.Fatal("should fail on get license", err)
+	}
+}