PLT-3143 Added serverside code for custom Emoji (#3311)

* Added model objects for emoji

* Added database tables for emoji

* Added settings for custom emoji

* Added serverside APIs and unit tests for custom emoji

* Added additional validation to catch duplicate emoji names earlier on

* Added additional validation to prevent users from adding emoji as another user

1 files changed, 162 insertions, 0 deletions

diff --git a/store/sql_emoji_store_test.go b/store/sql_emoji_store_test.go
new file mode 100644
index 000000000..f9c42c906
--- /dev/null
+++ b/store/sql_emoji_store_test.go
@@ -0,0 +1,162 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package store
+
+import (
+	"github.com/mattermost/platform/model"
+	"testing"
+	"time"
+)
+
+func TestEmojiSaveDelete(t *testing.T) {
+	Setup()
+
+	emoji1 := &model.Emoji{
+		CreatorId: model.NewId(),
+		Name:      model.NewId(),
+	}
+
+	if result := <-store.Emoji().Save(emoji1); result.Err != nil {
+		t.Fatal(result.Err)
+	}
+
+	if len(emoji1.Id) != 26 {
+		t.Fatal("should've set id for emoji")
+	}
+
+	emoji2 := model.Emoji{
+		CreatorId: model.NewId(),
+		Name:      emoji1.Name,
+	}
+	if result := <-store.Emoji().Save(&emoji2); result.Err == nil {
+		t.Fatal("shouldn't be able to save emoji with duplicate name")
+	}
+
+	if result := <-store.Emoji().Delete(emoji1.Id, time.Now().Unix()); result.Err != nil {
+		t.Fatal(result.Err)
+	}
+
+	if result := <-store.Emoji().Save(&emoji2); result.Err != nil {
+		t.Fatal("should be able to save emoji with duplicate name now that original has been deleted", result.Err)
+	}
+
+	if result := <-store.Emoji().Delete(emoji2.Id, time.Now().Unix()+1); result.Err != nil {
+		t.Fatal(result.Err)
+	}
+}
+
+func TestEmojiGet(t *testing.T) {
+	Setup()
+
+	emojis := []model.Emoji{
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+	}
+
+	for i, emoji := range emojis {
+		emojis[i] = *Must(store.Emoji().Save(&emoji)).(*model.Emoji)
+	}
+	defer func() {
+		for _, emoji := range emojis {
+			Must(store.Emoji().Delete(emoji.Id, time.Now().Unix()))
+		}
+	}()
+
+	for _, emoji := range emojis {
+		if result := <-store.Emoji().Get(emoji.Id); result.Err != nil {
+			t.Fatalf("failed to get emoji with id %v: %v", emoji.Id, result.Err)
+		}
+	}
+}
+
+func TestEmojiGetByName(t *testing.T) {
+	Setup()
+
+	emojis := []model.Emoji{
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+	}
+
+	for i, emoji := range emojis {
+		emojis[i] = *Must(store.Emoji().Save(&emoji)).(*model.Emoji)
+	}
+	defer func() {
+		for _, emoji := range emojis {
+			Must(store.Emoji().Delete(emoji.Id, time.Now().Unix()))
+		}
+	}()
+
+	for _, emoji := range emojis {
+		if result := <-store.Emoji().GetByName(emoji.Name); result.Err != nil {
+			t.Fatalf("failed to get emoji with name %v: %v", emoji.Name, result.Err)
+		}
+	}
+}
+
+func TestEmojiGetAll(t *testing.T) {
+	Setup()
+
+	emojis := []model.Emoji{
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+		{
+			CreatorId: model.NewId(),
+			Name:      model.NewId(),
+		},
+	}
+
+	for i, emoji := range emojis {
+		emojis[i] = *Must(store.Emoji().Save(&emoji)).(*model.Emoji)
+	}
+	defer func() {
+		for _, emoji := range emojis {
+			Must(store.Emoji().Delete(emoji.Id, time.Now().Unix()))
+		}
+	}()
+
+	if result := <-store.Emoji().GetAll(); result.Err != nil {
+		t.Fatal(result.Err)
+	} else {
+		for _, emoji := range emojis {
+			found := false
+
+			for _, savedEmoji := range result.Data.([]*model.Emoji) {
+				if emoji.Id == savedEmoji.Id {
+					found = true
+					break
+				}
+			}
+
+			if !found {
+				t.Fatalf("failed to get emoji with id %v", emoji.Id)
+			}
+		}
+	}
+}