Test that scolling to the last line works

It doesn't when we're in word wrapping mode.

Not sure how to fix this, but it is broken.

m/linewrapper_test.go

@@ -12,7 +12,7 @@ func tokenize(input string) []twin.Cell {
 	return line.HighlightedTokens(nil)
 }
 
-func toString(cellLines [][]twin.Cell) string {
+func rowsToString(cellLines [][]twin.Cell) string {
 	returnMe := ""
 	for _, cellLine := range cellLines {
 		lineString := ""
@@ -43,7 +43,7 @@ func assertWrap(t *testing.T, input string, width int, wrappedLines ...string) {
 	}
 
 	t.Errorf("When wrapping <%s> at width %d:\n--Expected--\n%s\n\n--Actual--\n%s",
-		input, width, toString(expected), toString(actual))
+		input, width, rowsToString(expected), rowsToString(actual))
 }
 
 func TestEnoughRoomNoWrapping(t *testing.T) {

m/pager.go

@@ -501,6 +501,10 @@ func removeLastChar(s string) string {
 	return s[:len(s)-size]
 }
 
+func (p *Pager) _ScrollToEnd() {
+	p.firstLineOneBased = p.reader.GetLineCount()
+}
+
 func (p *Pager) _OnSearchKey(key twin.KeyCode) {
 	switch key {
 	case twin.KeyEscape, twin.KeyEnter:
@@ -658,7 +662,7 @@ func (p *Pager) _OnRune(char rune) {
 		p.firstLineOneBased = 1
 
 	case '>', 'G':
-		p.firstLineOneBased = p.reader.GetLineCount()
+		p._ScrollToEnd()
 
 	case 'f', ' ':
 		_, height := p.screen.Size()

m/pager_test.go

@@ -303,6 +303,44 @@ func TestFindFirstLineOneBasedAnsi(t *testing.T) {
 	assert.Check(t, *hitLine == 1)
 }
 
+// Converts a cell row to a plain string and removes trailing whitespace.
+func rowToString(row []twin.Cell) string {
+	rowString := ""
+	for _, cell := range row {
+		rowString += string(cell.Rune)
+	}
+
+	return strings.TrimRight(rowString, " ")
+}
+
+func TestScrollToBottomWrapNextToLastLine(t *testing.T) {
+	reader := NewReaderFromStream("",
+		strings.NewReader("first line\nline two will be wrapped\nhere's the last line"))
+	pager := NewPager(reader)
+	pager.WrapLongLines = true
+	pager.ShowLineNumbers = false
+
+	// Wait for reader to finish reading
+	<-reader.done
+
+	// This is what we're testing really
+	pager._ScrollToEnd()
+
+	// Heigh 3 = two lines of contents + one footer
+	screen := twin.NewFakeScreen(10, 3)
+
+	// Exit immediately
+	pager.Quit()
+
+	// Get contents onto our fake screen
+	pager.StartPaging(screen)
+	pager._Redraw("")
+
+	lastVisibleRow := screen.GetRow(1)
+	lastVisibleRowString := rowToString(lastVisibleRow)
+	assert.Equal(t, lastVisibleRowString, "last line")
+}
+
 func benchmarkSearch(b *testing.B, highlighted bool) {
 	// Pick a go file so we get something with highlighting
 	_, sourceFilename, _, ok := runtime.Caller(0)