mirror of https://github.com/liamg/aminal.git
484 lines
12 KiB
Go
484 lines
12 KiB
Go
package buffer
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import (
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"strings"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/stretchr/testify/assert"
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)
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func TestOffsets(t *testing.T) {
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b := NewBuffer(10, 3, CellAttributes{})
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b.Write([]rune("hello\r\n")...)
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b.Write([]rune("hello\r\n")...)
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b.Write([]rune("hello\r\n")...)
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b.Write([]rune("hello\r\n")...)
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b.Write([]rune("hello")...)
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assert.Equal(t, uint16(10), b.ViewWidth())
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assert.Equal(t, uint16(10), b.Width())
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assert.Equal(t, uint16(3), b.ViewHeight())
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assert.Equal(t, 5, b.Height())
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}
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func TestBufferCreation(t *testing.T) {
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b := NewBuffer(10, 20, CellAttributes{})
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assert.Equal(t, uint16(10), b.Width())
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assert.Equal(t, uint16(20), b.ViewHeight())
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assert.Equal(t, uint16(0), b.CursorColumn())
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assert.Equal(t, uint16(0), b.CursorLine())
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assert.NotNil(t, b.lines)
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}
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func TestBufferWriteIncrementsCursorCorrectly(t *testing.T) {
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b := NewBuffer(5, 4, CellAttributes{})
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/*01234
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|-----
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0|xxxxx
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1|
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2|
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3|
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|-----
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*/
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b.Write('x')
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require.Equal(t, uint16(1), b.CursorColumn())
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require.Equal(t, uint16(0), b.CursorLine())
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b.Write('x')
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require.Equal(t, uint16(2), b.CursorColumn())
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require.Equal(t, uint16(0), b.CursorLine())
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b.Write('x')
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require.Equal(t, uint16(3), b.CursorColumn())
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require.Equal(t, uint16(0), b.CursorLine())
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b.Write('x')
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require.Equal(t, uint16(4), b.CursorColumn())
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require.Equal(t, uint16(0), b.CursorLine())
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b.Write('x')
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require.Equal(t, uint16(5), b.CursorColumn())
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require.Equal(t, uint16(0), b.CursorLine())
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b.Write('x')
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require.Equal(t, uint16(1), b.CursorColumn())
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require.Equal(t, uint16(1), b.CursorLine())
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b.Write('x')
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require.Equal(t, uint16(2), b.CursorColumn())
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require.Equal(t, uint16(1), b.CursorLine())
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lines := b.GetVisibleLines()
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require.Equal(t, 2, len(lines))
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assert.Equal(t, "xxxxx", lines[0].String())
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assert.Equal(t, "xx", lines[1].String())
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}
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func TestWritingNewLineAsFirstRuneOnWrappedLine(t *testing.T) {
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b := NewBuffer(3, 20, CellAttributes{})
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b.Write('a', 'b', 'c')
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assert.Equal(t, uint16(3), b.cursorX)
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assert.Equal(t, uint16(0), b.cursorY)
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b.Write(0x0a)
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assert.Equal(t, uint16(0), b.cursorX)
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assert.Equal(t, uint16(1), b.cursorY)
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b.Write('d', 'e', 'f')
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assert.Equal(t, uint16(3), b.cursorX)
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assert.Equal(t, uint16(1), b.cursorY)
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b.Write(0x0a)
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assert.Equal(t, uint16(0), b.cursorX)
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assert.Equal(t, uint16(2), b.cursorY)
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require.Equal(t, 2, len(b.lines))
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assert.Equal(t, "abc", b.lines[0].String())
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assert.Equal(t, "def", b.lines[1].String())
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}
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func TestWritingNewLineAsSecondRuneOnWrappedLine(t *testing.T) {
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b := NewBuffer(3, 20, CellAttributes{})
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/*
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|abc
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|d
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|ef
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|z
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*/
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b.Write('a', 'b', 'c', 'd')
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b.Write(0x0a)
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b.Write('e', 'f')
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b.Write(0x0a)
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b.Write(0x0a)
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b.Write(0x0a)
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b.Write('z')
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assert.Equal(t, "abc", b.lines[0].String())
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assert.Equal(t, "d", b.lines[1].String())
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assert.Equal(t, "ef", b.lines[2].String())
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assert.Equal(t, "", b.lines[3].String())
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assert.Equal(t, "", b.lines[4].String())
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assert.Equal(t, "z", b.lines[5].String())
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}
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func TestSetPosition(t *testing.T) {
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b := NewBuffer(120, 80, CellAttributes{})
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assert.Equal(t, 0, int(b.CursorColumn()))
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assert.Equal(t, 0, int(b.CursorLine()))
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b.SetPosition(60, 10)
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assert.Equal(t, 60, int(b.CursorColumn()))
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assert.Equal(t, 10, int(b.CursorLine()))
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b.SetPosition(0, 0)
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assert.Equal(t, 0, int(b.CursorColumn()))
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assert.Equal(t, 0, int(b.CursorLine()))
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b.SetPosition(120, 90)
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assert.Equal(t, 119, int(b.CursorColumn()))
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assert.Equal(t, 79, int(b.CursorLine()))
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}
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func TestMovePosition(t *testing.T) {
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b := NewBuffer(120, 80, CellAttributes{})
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assert.Equal(t, 0, int(b.CursorColumn()))
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assert.Equal(t, 0, int(b.CursorLine()))
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b.MovePosition(-1, -1)
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assert.Equal(t, 0, int(b.CursorColumn()))
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assert.Equal(t, 0, int(b.CursorLine()))
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b.MovePosition(30, 20)
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assert.Equal(t, 30, int(b.CursorColumn()))
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assert.Equal(t, 20, int(b.CursorLine()))
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b.MovePosition(30, 20)
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assert.Equal(t, 60, int(b.CursorColumn()))
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assert.Equal(t, 40, int(b.CursorLine()))
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b.MovePosition(-1, -1)
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assert.Equal(t, 59, int(b.CursorColumn()))
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assert.Equal(t, 39, int(b.CursorLine()))
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b.MovePosition(100, 100)
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assert.Equal(t, 119, int(b.CursorColumn()))
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assert.Equal(t, 79, int(b.CursorLine()))
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}
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func TestVisibleLines(t *testing.T) {
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b := NewBuffer(80, 10, CellAttributes{})
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b.Write([]rune("hello 1\r\n")...)
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b.Write([]rune("hello 2\r\n")...)
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b.Write([]rune("hello 3\r\n")...)
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b.Write([]rune("hello 4\r\n")...)
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b.Write([]rune("hello 5\r\n")...)
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b.Write([]rune("hello 6\r\n")...)
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b.Write([]rune("hello 7\r\n")...)
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b.Write([]rune("hello 8\r\n")...)
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b.Write([]rune("hello 9\r\n")...)
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b.Write([]rune("hello 10\r\n")...)
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b.Write([]rune("hello 11\r\n")...)
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b.Write([]rune("hello 12\r\n")...)
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b.Write([]rune("hello 13\r\n")...)
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b.Write([]rune("hello 14")...)
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lines := b.GetVisibleLines()
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require.Equal(t, 10, len(lines))
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assert.Equal(t, "hello 5", lines[0].String())
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assert.Equal(t, "hello 14", lines[9].String())
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}
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func TestClearWithoutFullView(t *testing.T) {
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b := NewBuffer(80, 10, CellAttributes{})
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b.Write([]rune("hello 1\r\n")...)
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b.Write([]rune("hello 2\r\n")...)
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b.Write([]rune("hello 3")...)
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b.Clear()
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lines := b.GetVisibleLines()
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for _, line := range lines {
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assert.Equal(t, "", line.String())
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}
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}
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func TestClearWithFullView(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello 1\r\n")...)
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b.Write([]rune("hello 2\r\n")...)
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b.Write([]rune("hello 3\r\n")...)
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b.Write([]rune("hello 4\r\n")...)
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b.Write([]rune("hello 5\r\n")...)
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b.Write([]rune("hello 6\r\n")...)
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b.Write([]rune("hello 7\r\n")...)
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b.Write([]rune("hello 8\r\n")...)
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b.Clear()
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lines := b.GetVisibleLines()
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for _, line := range lines {
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assert.Equal(t, "", line.String())
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}
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}
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func TestCarriageReturn(t *testing.T) {
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b := NewBuffer(80, 20, CellAttributes{})
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b.Write([]rune("hello!\rsecret")...)
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lines := b.GetVisibleLines()
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assert.Equal(t, "secret", lines[0].String())
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}
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func TestCarriageReturnOnWrappedLine(t *testing.T) {
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b := NewBuffer(80, 6, CellAttributes{})
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b.Write([]rune("hello!\rsecret")...)
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lines := b.GetVisibleLines()
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assert.Equal(t, "secret", lines[0].String())
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}
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func TestCarriageReturnOnOverWrappedLine(t *testing.T) {
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/*
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|hello
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|secret
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| sauce
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*/
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b := NewBuffer(6, 10, CellAttributes{})
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b.Write([]rune("hello there!\rsecret sauce")...)
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lines := b.GetVisibleLines()
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require.Equal(t, 3, len(lines))
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assert.Equal(t, "hello", lines[0].String())
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assert.Equal(t, "secret", lines[1].String())
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assert.True(t, b.lines[1].wrapped)
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assert.Equal(t, " sauce", lines[2].String())
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}
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func TestCarriageReturnOnLineThatDoesntExist(t *testing.T) {
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b := NewBuffer(6, 10, CellAttributes{})
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b.cursorY = 3
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b.Write('\r')
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assert.Equal(t, uint16(0), b.cursorX)
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assert.Equal(t, uint16(3), b.cursorY)
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}
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func TestGetCell(t *testing.T) {
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b := NewBuffer(80, 20, CellAttributes{})
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b.Write([]rune("Hello\r\nthere\r\nsomething...")...)
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cell := b.GetCell(8, 2)
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require.NotNil(t, cell)
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assert.Equal(t, 'g', cell.Rune())
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}
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func TestGetCellWithHistory(t *testing.T) {
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b := NewBuffer(80, 2, CellAttributes{})
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b.Write([]rune("Hello\r\nthere\r\nsomething...")...)
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cell := b.GetCell(8, 1)
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require.NotNil(t, cell)
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assert.Equal(t, 'g', cell.Rune())
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}
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func TestGetCellWithBadCursor(t *testing.T) {
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b := NewBuffer(80, 2, CellAttributes{})
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b.Write([]rune("Hello\r\nthere\r\nsomething...")...)
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require.Nil(t, b.GetCell(8, 3))
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require.Nil(t, b.GetCell(90, 0))
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}
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func TestCursorAttr(t *testing.T) {
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b := NewBuffer(80, 2, CellAttributes{})
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assert.Equal(t, &b.cursorAttr, b.CursorAttr())
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}
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func TestCursorPositionQuerying(t *testing.T) {
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b := NewBuffer(80, 20, CellAttributes{})
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b.cursorX = 17
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b.cursorY = 9
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assert.Equal(t, b.cursorX, b.CursorColumn())
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assert.Equal(t, b.cursorY, b.CursorLine())
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}
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func TestRawPositionQuerying(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("a\r\na\r\na\r\na\r\na\r\na\r\na\r\na\r\na\r\na")...)
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b.cursorX = 3
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b.cursorY = 4
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assert.Equal(t, uint64(9), b.RawLine())
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}
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// CSI 2 K
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func TestEraseLine(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello, this is a test\r\nthis line should be deleted")...)
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b.EraseLine()
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assert.Equal(t, "hello, this is a test", b.lines[0].String())
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assert.Equal(t, "", b.lines[1].String())
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}
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// CSI 1 K
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func TestEraseLineToCursor(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello, this is a test\r\ndeleted")...)
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b.MovePosition(-3, 0)
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b.EraseLineToCursor()
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assert.Equal(t, "hello, this is a test", b.lines[0].String())
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assert.Equal(t, "\x00\x00\x00\x00\x00ed", b.lines[1].String())
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}
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// CSI 0 K
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func TestEraseLineAfterCursor(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello, this is a test\r\ndeleted")...)
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b.MovePosition(-3, 0)
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b.EraseLineFromCursor()
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assert.Equal(t, "hello, this is a test", b.lines[0].String())
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assert.Equal(t, "dele", b.lines[1].String())
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}
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func TestEraseDisplay(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello\r\nasdasd\r\nthing")...)
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b.MovePosition(2, 1)
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b.EraseDisplay()
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lines := b.GetVisibleLines()
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for _, line := range lines {
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assert.Equal(t, "", line.String())
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}
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}
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func TestEraseDisplayToCursor(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello\r\nasdasd\r\nthing")...)
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b.MovePosition(-2, 0)
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b.EraseDisplayToCursor()
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lines := b.GetVisibleLines()
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assert.Equal(t, "", lines[0].String())
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assert.Equal(t, "", lines[1].String())
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assert.Equal(t, "\x00\x00\x00ng", lines[2].String())
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}
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func TestEraseDisplayFromCursor(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello\r\nasdasd\r\nthings")...)
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b.MovePosition(-3, -1)
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b.EraseDisplayFromCursor()
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lines := b.GetVisibleLines()
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assert.Equal(t, "hello", lines[0].String())
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assert.Equal(t, "asd", lines[1].String())
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assert.Equal(t, "", lines[2].String())
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}
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func TestBackspace(t *testing.T) {
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b := NewBuffer(80, 5, CellAttributes{})
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b.Write([]rune("hello")...)
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b.Backspace()
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b.Backspace()
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b.Write([]rune("p")...)
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lines := b.GetVisibleLines()
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assert.Equal(t, "helpo", lines[0].String())
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}
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func TestBackspaceWithWrap(t *testing.T) {
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b := NewBuffer(10, 5, CellAttributes{})
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b.Write([]rune("hellohellohello")...)
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.Backspace()
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b.EraseLineFromCursor()
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lines := b.GetVisibleLines()
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assert.Equal(t, "hello", lines[0].String())
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}
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func TestHorizontalResizeView(t *testing.T) {
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b := NewBuffer(80, 10, CellAttributes{})
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// 60 characters
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b.Write([]rune(
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`hellohellohellohellohellohellohellohellohellohellohellohello
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goodbyegoodbye`)...)
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require.Equal(t, uint16(14), b.cursorX)
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require.Equal(t, uint16(1), b.cursorY)
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b.ResizeView(40, 10)
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expected := `hellohellohellohellohellohellohellohello
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hellohellohellohello
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goodbyegoodbye`
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require.Equal(t, uint16(14), b.cursorX)
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require.Equal(t, uint16(2), b.cursorY)
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lines := b.GetVisibleLines()
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strs := []string{}
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for _, l := range lines {
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strs = append(strs, l.String())
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}
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require.Equal(t, expected, strings.Join(strs, "\n"))
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b.ResizeView(20, 10)
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expected = `hellohellohellohello
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hellohellohellohello
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hellohellohellohello
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goodbyegoodbye`
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lines = b.GetVisibleLines()
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strs = []string{}
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for _, l := range lines {
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strs = append(strs, l.String())
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}
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require.Equal(t, expected, strings.Join(strs, "\n"))
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b.ResizeView(10, 10)
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expected = `hellohello
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hellohello
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hellohello
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hellohello
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hellohello
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hellohello
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goodbyegoo
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dbye`
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lines = b.GetVisibleLines()
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strs = []string{}
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for _, l := range lines {
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strs = append(strs, l.String())
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}
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require.Equal(t, expected, strings.Join(strs, "\n"))
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b.ResizeView(80, 20)
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expected = `hellohellohellohellohellohellohellohellohellohellohellohello
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goodbyegoodbye`
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lines = b.GetVisibleLines()
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strs = []string{}
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for _, l := range lines {
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strs = append(strs, l.String())
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}
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require.Equal(t, expected, strings.Join(strs, "\n"))
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require.Equal(t, uint16(1), b.cursorY)
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require.Equal(t, uint16(14), b.cursorX)
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}
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/*
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hellohellohellohellohellohellohellohellohellohellohellohello
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goodbyegoo
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dbye
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*/
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