From aad680440d9322dd95c6bb9a0dbead4cff6274ec Mon Sep 17 00:00:00 2001
From: nikitar020 <42252263+nikitar020@users.noreply.github.com>
Date: Thu, 31 Jan 2019 18:48:55 +0000
Subject: [PATCH] Fix the bug when carriage returns doubled on input (#188)

fix tests
---
 buffer/buffer_test.go    | 4 ++++
 buffer/terminal_state.go | 1 +
 2 files changed, 5 insertions(+)

diff --git a/buffer/buffer_test.go b/buffer/buffer_test.go
index 00c998b..323fb04 100644
--- a/buffer/buffer_test.go
+++ b/buffer/buffer_test.go
@@ -118,6 +118,8 @@ func TestBufferWriteIncrementsCursorCorrectly(t *testing.T) {
 
 func TestWritingNewLineAsFirstRuneOnWrappedLine(t *testing.T) {
 	b := NewBuffer(NewTerminalState(3, 20, CellAttributes{}, 1000))
+	b.terminalState.LineFeedMode = false
+
 	b.Write('a', 'b', 'c')
 	assert.Equal(t, uint16(3), b.terminalState.cursorX)
 	assert.Equal(t, uint16(0), b.terminalState.cursorY)
@@ -141,6 +143,7 @@ func TestWritingNewLineAsFirstRuneOnWrappedLine(t *testing.T) {
 
 func TestWritingNewLineAsSecondRuneOnWrappedLine(t *testing.T) {
 	b := NewBuffer(NewTerminalState(3, 20, CellAttributes{}, 1000))
+	b.terminalState.LineFeedMode = false
 	/*
 		|abc
 		|d
@@ -624,6 +627,7 @@ dbye
 
 func TestBufferMaxLines(t *testing.T) {
 	b := NewBuffer(NewTerminalState(80, 2, CellAttributes{}, 2))
+	b.terminalState.LineFeedMode = false
 
 	b.Write([]rune("hello")...)
 	b.NewLine()
diff --git a/buffer/terminal_state.go b/buffer/terminal_state.go
index a8948ce..e39f211 100644
--- a/buffer/terminal_state.go
+++ b/buffer/terminal_state.go
@@ -30,6 +30,7 @@ func NewTerminalState(viewCols uint16, viewLines uint16, attr CellAttributes, ma
 		viewHeight:   viewLines,
 		topMargin:    0,
 		bottomMargin: uint(viewLines - 1),
+		LineFeedMode: true,
 	}
 	b.TabReset()
 	return b