X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/decc2fbf5db4a05aec93462ad35d890930bddd04..a3ca1960db3a30c330dcbb79f9d7f4ba73fe472f:/hotline/transaction_handlers_test.go

diff --git a/hotline/transaction_handlers_test.go b/hotline/transaction_handlers_test.go
index a83f4cc..01ae862 100644
--- a/hotline/transaction_handlers_test.go
+++ b/hotline/transaction_handlers_test.go
@@ -2,6 +2,7 @@ package hotline
 
 import (
 	"errors"
+	"fmt"
 	"github.com/stretchr/testify/assert"
 	"io/fs"
 	"math/rand"
@@ -302,6 +303,14 @@ func TestHandleChatSend(t *testing.T) {
 			name: "sends chat msg transaction to all clients",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessSendChat)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					UserName: []byte{0x00, 0x01},
 					Server: &Server{
 						Clients: map[uint16]*ClientConn{
@@ -352,10 +361,52 @@ func TestHandleChatSend(t *testing.T) {
 			},
 			wantErr: false,
 		},
+		{
+			name: "when user does not have required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					tranChatSend, &[]byte{0, 1},
+					NewField(fieldData, []byte("hai")),
+				),
+			},
+			want: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to participate in chat.")),
+					},
+				},
+			},
+			wantErr: false,
+		},
 		{
 			name: "sends chat msg as emote if fieldChatOptions is set",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessSendChat)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					UserName: []byte("Testy McTest"),
 					Server: &Server{
 						Clients: map[uint16]*ClientConn{
@@ -387,7 +438,7 @@ func TestHandleChatSend(t *testing.T) {
 					Flags:     0x00,
 					IsReply:   0x00,
 					Type:      []byte{0, 0x6a},
-					ID:        []byte{0x9a, 0xcb, 0x04, 0x42}, // Random ID from rand.Seed(1)
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
 					ErrorCode: []byte{0, 0, 0, 0},
 					Fields: []Field{
 						NewField(fieldData, []byte("\r*** Testy McTest performed action")),
@@ -398,7 +449,7 @@ func TestHandleChatSend(t *testing.T) {
 					Flags:     0x00,
 					IsReply:   0x00,
 					Type:      []byte{0, 0x6a},
-					ID:        []byte{0xf0, 0xc5, 0x34, 0x1e}, // Random ID from rand.Seed(1)
+					ID:        []byte{0xf0, 0xc5, 0x34, 0x1e},
 					ErrorCode: []byte{0, 0, 0, 0},
 					Fields: []Field{
 						NewField(fieldData, []byte("\r*** Testy McTest performed action")),
@@ -411,6 +462,14 @@ func TestHandleChatSend(t *testing.T) {
 			name: "only sends chat msg to clients with accessReadChat permission",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessSendChat)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					UserName: []byte{0x00, 0x01},
 					Server: &Server{
 						Clients: map[uint16]*ClientConn{
@@ -450,9 +509,91 @@ func TestHandleChatSend(t *testing.T) {
 			},
 			wantErr: false,
 		},
+		{
+			name: "only sends private chat msg to members of private chat",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessSendChat)
+							access := bits[:]
+							return &access
+						}(),
+					},
+					UserName: []byte{0x00, 0x01},
+					Server: &Server{
+						PrivateChats: map[uint32]*PrivateChat{
+							uint32(1): {
+								ClientConn: map[uint16]*ClientConn{
+									uint16(1): {
+										ID: &[]byte{0, 1},
+									},
+									uint16(2): {
+										ID: &[]byte{0, 2},
+									},
+								},
+							},
+						},
+						Clients: map[uint16]*ClientConn{
+							uint16(1): {
+								Account: &Account{
+									Access: &[]byte{255, 255, 255, 255, 255, 255, 255, 255},
+								},
+								ID: &[]byte{0, 1},
+							},
+							uint16(2): {
+								Account: &Account{
+									Access: &[]byte{0, 0, 0, 0, 0, 0, 0, 0},
+								},
+								ID: &[]byte{0, 2},
+							},
+							uint16(3): {
+								Account: &Account{
+									Access: &[]byte{0, 0, 0, 0, 0, 0, 0, 0},
+								},
+								ID: &[]byte{0, 3},
+							},
+						},
+					},
+				},
+				t: &Transaction{
+					Fields: []Field{
+						NewField(fieldData, []byte("hai")),
+						NewField(fieldChatID, []byte{0, 0, 0, 1}),
+					},
+				},
+			},
+			want: []Transaction{
+				{
+					clientID:  &[]byte{0, 1},
+					Flags:     0x00,
+					IsReply:   0x00,
+					Type:      []byte{0, 0x6a},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields: []Field{
+						NewField(fieldChatID, []byte{0, 0, 0, 1}),
+						NewField(fieldData, []byte{0x0d, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x01, 0x3a, 0x20, 0x20, 0x68, 0x61, 0x69}),
+					},
+				},
+				{
+					clientID:  &[]byte{0, 2},
+					Flags:     0x00,
+					IsReply:   0x00,
+					Type:      []byte{0, 0x6a},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields: []Field{
+						NewField(fieldChatID, []byte{0, 0, 0, 1}),
+						NewField(fieldData, []byte{0x0d, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x01, 0x3a, 0x20, 0x20, 0x68, 0x61, 0x69}),
+					},
+				},
+			},
+			wantErr: false,
+		},
 	}
 	for _, tt := range tests {
-		rand.Seed(1) // reset seed between tests to make transaction IDs predictable
 		t.Run(tt.name, func(t *testing.T) {
 			got, err := HandleChatSend(tt.args.cc, tt.args.t)
 
@@ -460,9 +601,7 @@ func TestHandleChatSend(t *testing.T) {
 				t.Errorf("HandleChatSend() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if !assert.Equal(t, tt.want, got) {
-				t.Errorf("HandleChatSend() got = %v, want %v", got, tt.want)
-			}
+			tranAssertEqual(t, tt.want, got)
 		})
 	}
 }
@@ -510,7 +649,7 @@ func TestHandleGetFileInfo(t *testing.T) {
 					ErrorCode: []byte{0, 0, 0, 0},
 					Fields: []Field{
 						NewField(fieldFileName, []byte("testfile.txt")),
-						NewField(fieldFileTypeString, []byte("TEXT")),
+						NewField(fieldFileTypeString, []byte("Text File")),
 						NewField(fieldFileCreatorString, []byte("ttxt")),
 						NewField(fieldFileComment, []byte{}),
 						NewField(fieldFileType, []byte("TEXT")),
@@ -550,21 +689,65 @@ func TestHandleNewFolder(t *testing.T) {
 		t  *Transaction
 	}
 	tests := []struct {
-		setup   func()
 		name    string
 		args    args
 		wantRes []Transaction
 		wantErr bool
 	}{
+		{
+			name: "without required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+				},
+				t: NewTransaction(
+					accessCreateFolder,
+					&[]byte{0, 0},
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to create folders.")),
+					},
+				},
+			},
+			wantErr: false,
+		},
 		{
 			name: "when path is nested",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessCreateFolder)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					ID: &[]byte{0, 1},
 					Server: &Server{
 						Config: &Config{
 							FileRoot: "/Files/",
 						},
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							mfs.On("Mkdir", "/Files/aaa/testFolder", fs.FileMode(0777)).Return(nil)
+							mfs.On("Stat", "/Files/aaa/testFolder").Return(nil, os.ErrNotExist)
+							return mfs
+						}(),
 					},
 				},
 				t: NewTransaction(
@@ -578,12 +761,6 @@ func TestHandleNewFolder(t *testing.T) {
 					}),
 				),
 			},
-			setup: func() {
-				mfs := MockFileStore{}
-				mfs.On("Mkdir", "/Files/aaa/testFolder", fs.FileMode(0777)).Return(nil)
-				mfs.On("Stat", "/Files/aaa/testFolder").Return(nil, os.ErrNotExist)
-				FS = mfs
-			},
 			wantRes: []Transaction{
 				{
 					clientID:  &[]byte{0, 1},
@@ -600,11 +777,25 @@ func TestHandleNewFolder(t *testing.T) {
 			name: "when path is not nested",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessCreateFolder)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					ID: &[]byte{0, 1},
 					Server: &Server{
 						Config: &Config{
 							FileRoot: "/Files",
 						},
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							mfs.On("Mkdir", "/Files/testFolder", fs.FileMode(0777)).Return(nil)
+							mfs.On("Stat", "/Files/testFolder").Return(nil, os.ErrNotExist)
+							return mfs
+						}(),
 					},
 				},
 				t: NewTransaction(
@@ -612,12 +803,6 @@ func TestHandleNewFolder(t *testing.T) {
 					NewField(fieldFileName, []byte("testFolder")),
 				),
 			},
-			setup: func() {
-				mfs := MockFileStore{}
-				mfs.On("Mkdir", "/Files/testFolder", fs.FileMode(0777)).Return(nil)
-				mfs.On("Stat", "/Files/testFolder").Return(nil, os.ErrNotExist)
-				FS = mfs
-			},
 			wantRes: []Transaction{
 				{
 					clientID:  &[]byte{0, 1},
@@ -634,11 +819,25 @@ func TestHandleNewFolder(t *testing.T) {
 			name: "when UnmarshalBinary returns an err",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessCreateFolder)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					ID: &[]byte{0, 1},
 					Server: &Server{
 						Config: &Config{
 							FileRoot: "/Files/",
 						},
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							mfs.On("Mkdir", "/Files/aaa/testFolder", fs.FileMode(0777)).Return(nil)
+							mfs.On("Stat", "/Files/aaa/testFolder").Return(nil, os.ErrNotExist)
+							return mfs
+						}(),
 					},
 				},
 				t: NewTransaction(
@@ -649,12 +848,6 @@ func TestHandleNewFolder(t *testing.T) {
 					}),
 				),
 			},
-			setup: func() {
-				mfs := MockFileStore{}
-				mfs.On("Mkdir", "/Files/aaa/testFolder", fs.FileMode(0777)).Return(nil)
-				mfs.On("Stat", "/Files/aaa/testFolder").Return(nil, os.ErrNotExist)
-				FS = mfs
-			},
 			wantRes: []Transaction{},
 			wantErr: true,
 		},
@@ -662,11 +855,25 @@ func TestHandleNewFolder(t *testing.T) {
 			name: "fieldFileName does not allow directory traversal",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessCreateFolder)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					ID: &[]byte{0, 1},
 					Server: &Server{
 						Config: &Config{
 							FileRoot: "/Files/",
 						},
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							mfs.On("Mkdir", "/Files/testFolder", fs.FileMode(0777)).Return(nil)
+							mfs.On("Stat", "/Files/testFolder").Return(nil, os.ErrNotExist)
+							return mfs
+						}(),
 					},
 				},
 				t: NewTransaction(
@@ -674,12 +881,6 @@ func TestHandleNewFolder(t *testing.T) {
 					NewField(fieldFileName, []byte("../../testFolder")),
 				),
 			},
-			setup: func() {
-				mfs := MockFileStore{}
-				mfs.On("Mkdir", "/Files/testFolder", fs.FileMode(0777)).Return(nil)
-				mfs.On("Stat", "/Files/testFolder").Return(nil, os.ErrNotExist)
-				FS = mfs
-			},
 			wantRes: []Transaction{
 				{
 					clientID:  &[]byte{0, 1},
@@ -695,11 +896,25 @@ func TestHandleNewFolder(t *testing.T) {
 			name: "fieldFilePath does not allow directory traversal",
 			args: args{
 				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessCreateFolder)
+							access := bits[:]
+							return &access
+						}(),
+					},
 					ID: &[]byte{0, 1},
 					Server: &Server{
 						Config: &Config{
 							FileRoot: "/Files/",
 						},
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							mfs.On("Mkdir", "/Files/foo/testFolder", fs.FileMode(0777)).Return(nil)
+							mfs.On("Stat", "/Files/foo/testFolder").Return(nil, os.ErrNotExist)
+							return mfs
+						}(),
 					},
 				},
 				t: NewTransaction(
@@ -716,12 +931,6 @@ func TestHandleNewFolder(t *testing.T) {
 					}),
 				),
 			},
-			setup: func() {
-				mfs := MockFileStore{}
-				mfs.On("Mkdir", "/Files/foo/testFolder", fs.FileMode(0777)).Return(nil)
-				mfs.On("Stat", "/Files/foo/testFolder").Return(nil, os.ErrNotExist)
-				FS = mfs
-			},
 			wantRes: []Transaction{
 				{
 					clientID:  &[]byte{0, 1},
@@ -736,13 +945,13 @@ func TestHandleNewFolder(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			tt.setup()
 
 			gotRes, err := HandleNewFolder(tt.args.cc, tt.args.t)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("HandleNewFolder() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
+
 			if !tranAssertEqual(t, tt.wantRes, gotRes) {
 				t.Errorf("HandleNewFolder() gotRes = %v, want %v", gotRes, tt.wantRes)
 			}
@@ -762,7 +971,7 @@ func TestHandleUploadFile(t *testing.T) {
 		wantErr bool
 	}{
 		{
-			name: "when request is valid",
+			name: "when request is valid and user has Upload Anywhere permission",
 			args: args{
 				cc: &ClientConn{
 					Server: &Server{
@@ -772,6 +981,7 @@ func TestHandleUploadFile(t *testing.T) {
 						Access: func() *[]byte {
 							var bits accessBitmap
 							bits.Set(accessUploadFile)
+							bits.Set(accessUploadAnywhere)
 							access := bits[:]
 							return &access
 						}(),
@@ -851,9 +1061,9 @@ func TestHandleUploadFile(t *testing.T) {
 				t.Errorf("HandleUploadFile() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if !tranAssertEqual(t, tt.wantRes, gotRes) {
-				t.Errorf("HandleUploadFile() gotRes = %v, want %v", gotRes, tt.wantRes)
-			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+
 		})
 	}
 }
@@ -865,23 +1075,12 @@ func TestHandleMakeAlias(t *testing.T) {
 	}
 	tests := []struct {
 		name    string
-		setup   func()
 		args    args
 		wantRes []Transaction
 		wantErr bool
 	}{
 		{
 			name: "with valid input and required permissions",
-			setup: func() {
-				mfs := MockFileStore{}
-				path, _ := os.Getwd()
-				mfs.On(
-					"Symlink",
-					path+"/test/config/Files/foo/testFile",
-					path+"/test/config/Files/bar/testFile",
-				).Return(nil)
-				FS = mfs
-			},
 			args: args{
 				cc: &ClientConn{
 					Account: &Account{
@@ -900,6 +1099,16 @@ func TestHandleMakeAlias(t *testing.T) {
 							}(),
 						},
 						Logger: NewTestLogger(),
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							path, _ := os.Getwd()
+							mfs.On(
+								"Symlink",
+								path+"/test/config/Files/foo/testFile",
+								path+"/test/config/Files/bar/testFile",
+							).Return(nil)
+							return mfs
+						}(),
 					},
 				},
 				t: NewTransaction(
@@ -923,16 +1132,6 @@ func TestHandleMakeAlias(t *testing.T) {
 		},
 		{
 			name: "when symlink returns an error",
-			setup: func() {
-				mfs := MockFileStore{}
-				path, _ := os.Getwd()
-				mfs.On(
-					"Symlink",
-					path+"/test/config/Files/foo/testFile",
-					path+"/test/config/Files/bar/testFile",
-				).Return(errors.New("ohno"))
-				FS = mfs
-			},
 			args: args{
 				cc: &ClientConn{
 					Account: &Account{
@@ -951,6 +1150,16 @@ func TestHandleMakeAlias(t *testing.T) {
 							}(),
 						},
 						Logger: NewTestLogger(),
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							path, _ := os.Getwd()
+							mfs.On(
+								"Symlink",
+								path+"/test/config/Files/foo/testFile",
+								path+"/test/config/Files/bar/testFile",
+							).Return(errors.New("ohno"))
+							return mfs
+						}(),
 					},
 				},
 				t: NewTransaction(
@@ -975,8 +1184,7 @@ func TestHandleMakeAlias(t *testing.T) {
 			wantErr: false,
 		},
 		{
-			name:  "when user does not have required permission",
-			setup: func() {},
+			name: "when user does not have required permission",
 			args: args{
 				cc: &ClientConn{
 					Account: &Account{
@@ -1029,8 +1237,6 @@ func TestHandleMakeAlias(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			tt.setup()
-
 			gotRes, err := HandleMakeAlias(tt.args.cc, tt.args.t)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("HandleMakeAlias(%v, %v)", tt.args.cc, tt.args.t)
@@ -1041,3 +1247,1000 @@ func TestHandleMakeAlias(t *testing.T) {
 		})
 	}
 }
+
+func TestHandleGetUser(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "when account is valid",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessOpenUser)
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{
+							"guest": {
+								Login:    "guest",
+								Name:     "Guest",
+								Password: "password",
+								Access:   &[]byte{1},
+							},
+						},
+					},
+				},
+				t: NewTransaction(
+					tranGetUser, &[]byte{0, 1},
+					NewField(fieldUserLogin, []byte("guest")),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0x01, 0x60},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields: []Field{
+						NewField(fieldUserName, []byte("Guest")),
+						NewField(fieldUserLogin, negateString([]byte("guest"))),
+						NewField(fieldUserPassword, []byte("password")),
+						NewField(fieldUserAccess, []byte{1}),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when user does not have required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					tranGetUser, &[]byte{0, 1},
+					NewField(fieldUserLogin, []byte("nonExistentUser")),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to view accounts.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when account does not exist",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessOpenUser)
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					tranGetUser, &[]byte{0, 1},
+					NewField(fieldUserLogin, []byte("nonExistentUser")),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("Account does not exist.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleGetUser(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleGetUser(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleDeleteUser(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "when user exists",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessDeleteUser)
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{
+							"testuser": {
+								Login:    "testuser",
+								Name:     "Testy McTest",
+								Password: "password",
+								Access:   &[]byte{1},
+							},
+						},
+						FS: func() *MockFileStore {
+							mfs := &MockFileStore{}
+							mfs.On("Remove", "Users/testuser.yaml").Return(nil)
+							return mfs
+						}(),
+					},
+				},
+				t: NewTransaction(
+					tranDeleteUser, &[]byte{0, 1},
+					NewField(fieldUserLogin, negateString([]byte("testuser"))),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0x1, 0x5f},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields:    []Field(nil),
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when user does not have required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					tranDeleteUser, &[]byte{0, 1},
+					NewField(fieldUserLogin, negateString([]byte("testuser"))),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to delete accounts.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleDeleteUser(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleDeleteUser(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleGetMsgs(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "returns news data",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessNewsReadArt)
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						FlatNews: []byte("TEST"),
+					},
+				},
+				t: NewTransaction(
+					tranGetMsgs, &[]byte{0, 1},
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x65},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields: []Field{
+						NewField(fieldData, []byte("TEST")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when user does not have required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					tranGetMsgs, &[]byte{0, 1},
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to read news.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleGetMsgs(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleGetMsgs(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleNewUser(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "when user does not have required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					tranNewUser, &[]byte{0, 1},
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to create new accounts.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleNewUser(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleNewUser(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleListUsers(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "when user does not have required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					tranNewUser, &[]byte{0, 1},
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to view accounts.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleListUsers(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleListUsers(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleDownloadFile(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "when user does not have required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{},
+				},
+				t: NewTransaction(tranDownloadFile, &[]byte{0, 1}),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to download files.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "with a valid file",
+			args: args{
+				cc: &ClientConn{
+					Transfers: make(map[int][]*FileTransfer),
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessDownloadFile)
+							access := bits[:]
+							return &access
+						}(),
+					},
+					Server: &Server{
+						FileTransfers: make(map[uint32]*FileTransfer),
+						Config: &Config{
+							FileRoot: func() string { path, _ := os.Getwd(); return path + "/test/config/Files" }(),
+						},
+						Accounts: map[string]*Account{},
+					},
+				},
+				t: NewTransaction(
+					accessDownloadFile,
+					&[]byte{0, 1},
+					NewField(fieldFileName, []byte("testfile.txt")),
+					NewField(fieldFilePath, []byte{0x0, 0x00}),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x2},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields: []Field{
+						NewField(fieldRefNum, []byte{0x52, 0xfd, 0xfc, 0x07}),
+						NewField(fieldWaitingCount, []byte{0x00, 0x00}),
+						NewField(fieldTransferSize, []byte{0x00, 0x00, 0x00, 0xa5}),
+						NewField(fieldFileSize, []byte{0x00, 0x00, 0x00, 0x17}),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// reset the rand seed so that the random fieldRefNum will be deterministic
+			rand.Seed(1)
+
+			gotRes, err := HandleDownloadFile(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleDownloadFile(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleUpdateUser(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "when action is create user without required permission",
+			args: args{
+				cc: &ClientConn{
+					Server: &Server{
+						Logger: NewTestLogger(),
+					},
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+				},
+				t: NewTransaction(
+					tranUpdateUser,
+					&[]byte{0, 0},
+					NewField(fieldData, []byte{
+						0x00, 0x04, // field count
+
+						0x00, 0x69, // fieldUserLogin = 105
+						0x00, 0x03,
+						0x9d, 0x9d, 0x9d,
+
+						0x00, 0x6a, // fieldUserPassword = 106
+						0x00, 0x03,
+						0x9c, 0x9c, 0x9c,
+
+						0x00, 0x66, // fieldUserName = 102
+						0x00, 0x03,
+						0x61, 0x61, 0x61,
+
+						0x00, 0x6e, // fieldUserAccess = 110
+						0x00, 0x08,
+						0x60, 0x70, 0x0c, 0x20, 0x03, 0x80, 0x00, 0x00,
+					}),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to create new accounts.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when action is modify user without required permission",
+			args: args{
+				cc: &ClientConn{
+					Server: &Server{
+						Logger: NewTestLogger(),
+						Accounts: map[string]*Account{
+							"bbb": {},
+						},
+					},
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+				},
+				t: NewTransaction(
+					tranUpdateUser,
+					&[]byte{0, 0},
+					NewField(fieldData, []byte{
+						0x00, 0x04, // field count
+
+						0x00, 0x69, // fieldUserLogin = 105
+						0x00, 0x03,
+						0x9d, 0x9d, 0x9d,
+
+						0x00, 0x6a, // fieldUserPassword = 106
+						0x00, 0x03,
+						0x9c, 0x9c, 0x9c,
+
+						0x00, 0x66, // fieldUserName = 102
+						0x00, 0x03,
+						0x61, 0x61, 0x61,
+
+						0x00, 0x6e, // fieldUserAccess = 110
+						0x00, 0x08,
+						0x60, 0x70, 0x0c, 0x20, 0x03, 0x80, 0x00, 0x00,
+					}),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to modify accounts.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when action is delete user without required permission",
+			args: args{
+				cc: &ClientConn{
+					Server: &Server{
+						Logger: NewTestLogger(),
+						Accounts: map[string]*Account{
+							"bbb": {},
+						},
+					},
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+				},
+				t: NewTransaction(
+					tranUpdateUser,
+					&[]byte{0, 0},
+					NewField(fieldData, []byte{
+						0x00, 0x01,
+						0x00, 0x65,
+						0x00, 0x03,
+						0x88, 0x9e, 0x8b,
+					}),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to delete accounts.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleUpdateUser(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleUpdateUser(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleDelNewsArt(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "without required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+				},
+				t: NewTransaction(
+					tranDelNewsArt,
+					&[]byte{0, 0},
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to delete news articles.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleDelNewsArt(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleDelNewsArt(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleDisconnectUser(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "without required permission",
+			args: args{
+				cc: &ClientConn{
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							access := bits[:]
+							return &access
+						}(),
+					},
+				},
+				t: NewTransaction(
+					tranDelNewsArt,
+					&[]byte{0, 0},
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("You are not allowed to disconnect users.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when target user has 'cannot be disconnected' priv",
+			args: args{
+				cc: &ClientConn{
+					Server: &Server{
+						Clients: map[uint16]*ClientConn{
+							uint16(1): {
+								Account: &Account{
+									Login: "unnamed",
+									Access: func() *[]byte {
+										var bits accessBitmap
+										bits.Set(accessCannotBeDiscon)
+										access := bits[:]
+										return &access
+									}(),
+								},
+							},
+						},
+					},
+					Account: &Account{
+						Access: func() *[]byte {
+							var bits accessBitmap
+							bits.Set(accessDisconUser)
+							access := bits[:]
+							return &access
+						}(),
+					},
+				},
+				t: NewTransaction(
+					tranDelNewsArt,
+					&[]byte{0, 0},
+					NewField(fieldUserID, []byte{0, 1}),
+				),
+			},
+			wantRes: []Transaction{
+				{
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0, 0x00},
+					ID:        []byte{0x9a, 0xcb, 0x04, 0x42},
+					ErrorCode: []byte{0, 0, 0, 1},
+					Fields: []Field{
+						NewField(fieldError, []byte("unnamed is not allowed to be disconnected.")),
+					},
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleDisconnectUser(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleDisconnectUser(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}
+
+func TestHandleSendInstantMsg(t *testing.T) {
+	type args struct {
+		cc *ClientConn
+		t  *Transaction
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantRes []Transaction
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name: "when client 1 sends a message to client 2",
+			args: args{
+				cc: &ClientConn{
+					ID:       &[]byte{0, 1},
+					UserName: []byte("User1"),
+					Server: &Server{
+						Clients: map[uint16]*ClientConn{
+							uint16(2): {
+								AutoReply: []byte(nil),
+							},
+						},
+					},
+				},
+				t: NewTransaction(
+					tranSendInstantMsg,
+					&[]byte{0, 1},
+					NewField(fieldData, []byte("hai")),
+					NewField(fieldUserID, []byte{0, 2}),
+				),
+			},
+			wantRes: []Transaction{
+				*NewTransaction(
+					tranServerMsg,
+					&[]byte{0, 2},
+					NewField(fieldData, []byte("hai")),
+					NewField(fieldUserName, []byte("User1")),
+					NewField(fieldUserID, []byte{0, 1}),
+					NewField(fieldOptions, []byte{0, 1}),
+				),
+				{
+					clientID:  &[]byte{0, 1},
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0x0, 0x6c},
+					ID:        []byte{0, 0, 0, 0},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields:    []Field(nil),
+				},
+			},
+			wantErr: assert.NoError,
+		},
+		{
+			name: "when client 2 has autoreply enabled",
+			args: args{
+				cc: &ClientConn{
+					ID:       &[]byte{0, 1},
+					UserName: []byte("User1"),
+					Server: &Server{
+						Clients: map[uint16]*ClientConn{
+							uint16(2): {
+								ID:        &[]byte{0, 2},
+								UserName:  []byte("User2"),
+								AutoReply: []byte("autohai"),
+							},
+						},
+					},
+				},
+				t: NewTransaction(
+					tranSendInstantMsg,
+					&[]byte{0, 1},
+					NewField(fieldData, []byte("hai")),
+					NewField(fieldUserID, []byte{0, 2}),
+				),
+			},
+			wantRes: []Transaction{
+				*NewTransaction(
+					tranServerMsg,
+					&[]byte{0, 2},
+					NewField(fieldData, []byte("hai")),
+					NewField(fieldUserName, []byte("User1")),
+					NewField(fieldUserID, []byte{0, 1}),
+					NewField(fieldOptions, []byte{0, 1}),
+				),
+				*NewTransaction(
+					tranServerMsg,
+					&[]byte{0, 1},
+					NewField(fieldData, []byte("autohai")),
+					NewField(fieldUserName, []byte("User2")),
+					NewField(fieldUserID, []byte{0, 2}),
+					NewField(fieldOptions, []byte{0, 1}),
+				),
+				{
+					clientID:  &[]byte{0, 1},
+					Flags:     0x00,
+					IsReply:   0x01,
+					Type:      []byte{0x0, 0x6c},
+					ID:        []byte{0, 0, 0, 0},
+					ErrorCode: []byte{0, 0, 0, 0},
+					Fields:    []Field(nil),
+				},
+			},
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotRes, err := HandleSendInstantMsg(tt.args.cc, tt.args.t)
+			if !tt.wantErr(t, err, fmt.Sprintf("HandleSendInstantMsg(%v, %v)", tt.args.cc, tt.args.t)) {
+				return
+			}
+
+			tranAssertEqual(t, tt.wantRes, gotRes)
+		})
+	}
+}