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list_test.go
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list_test.go
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package bubblelister
import (
"fmt"
tea "github.com/charmbracelet/bubbletea"
"strings"
"testing"
)
// TestLines test if the models Lines methode returns the write amount of lines
func TestEmptyLines(t *testing.T) {
m := NewModel()
cmd := m.Init()
if cmd != nil {
t.Error("Init should do nothing") // yet
}
m.Height = 50
m.Width = 80
_, err := m.Lines()
if err == nil {
t.Error("A list with no entrys should return a error.")
}
m.Sort()
_, err = m.Lines()
if err == nil {
t.Error("A list with no entrys should return a error.")
}
}
// TestBasicsLines test lines without linebreaks and with content shorter than the max content-width.
func TestBasicsLines(t *testing.T) {
m := NewModel()
m.Height = 50
m.Width = 80
m.PrefixGen = NewPrefixer()
m.SuffixGen = NewSuffixer()
m.Wrap = 1
// Check Cursor position
if i, err := m.GetCursorIndex(); i != 0 || err == nil {
t.Errorf("the cursor index of a new Model should be '0' and not: '%d' and there should be a error: %#v", i, err)
}
// first two swaped
orgList := MakeStringerList("2", "1", "3", "4", "5", "6", "7", "8", "9")
m.AddItems(orgList...)
m.MoveCursor(1)
// Sort them
m.Sort()
// swap them again
m.MoveCursorItemBy(1)
// should be the like the beginning
sortedItemList := m.GetAllItems()
if len(orgList) != len(sortedItemList) {
t.Errorf("the list should not change size")
}
// Process/check all orgList
for c, item := range orgList {
if item.String() != sortedItemList[c].String() {
t.Errorf("the old strings should match the new, but dont: %q, %q", item.String(), sortedItemList[c].String())
}
}
m.Top()
out, _ := m.Lines()
if len(out) > 50 {
t.Errorf("Lines should never have more (%d) lines than Screen has lines: %d", len(out), m.Height)
}
light := "\x1b[7m"
cur := ">"
sep := "╭"
for i, line := range out {
// Check Prefixes
num := fmt.Sprintf("%d", i+1)
prefix := light + strings.Repeat(" ", 2-len(num)) + num + sep + cur
if !strings.HasPrefix(line, prefix) {
t.Errorf("The prefix of the line:\n%s\n with linenumber %d should be:\n%s\n", line, i, prefix)
}
cur = " "
sep = "├"
light = ""
}
}
// TestWrappedLines test a simple case of many items with linebreaks.
func TestWrappedLines(t *testing.T) {
m := NewModel()
m.PrefixGen = NewPrefixer()
m.SuffixGen = NewSuffixer()
m.Height = 50
m.Width = 80
m.AddItems(MakeStringerList("\n0", "1\n2", "3\n4", "5\n6", "7\n8")...)
out, _ := m.Lines()
wrap, sep := "│", "├"
num := "\x1b[7m "
for i := 1; i < len(out); i++ {
line := out[i]
if i%2 == 0 {
num = fmt.Sprintf(" %1d", (i/2)+1)
}
if i%2 == 1 {
sep = wrap
}
prefix := fmt.Sprintf("%s%s %d", num, sep, i-1)
if !strings.HasPrefix(line, prefix) {
t.Errorf("The prefix of the line:\n'%s'\n with linenumber %d should be:\n'%s'\n", line, i, prefix)
}
num = " "
sep = "├"
}
}
// TestMultiLineBreaks test one selected item
func TestMultiLineBreaks(t *testing.T) {
m := NewModel()
m.PrefixGen = NewPrefixer()
m.SuffixGen = NewSuffixer()
m.Height = 50
m.Width = 80
m.AddItems(MakeStringerList("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n")...)
out, _ := m.Lines()
prefix := "\x1b[7m 1╭>"
for i, line := range out {
if !strings.HasPrefix(line, prefix) {
t.Errorf("The prefix of the line:\n'%s'\n with linenumber %d should be:\n'%s'\n", line, i, prefix)
}
prefix = "\x1b[7m │ "
}
}
// Movements
func TestMovementKeys(t *testing.T) {
m := NewModel()
m.Wrap = 1
m.Height = 50
m.Width = 80
m.AddItems(MakeStringerList("\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n")...)
start, finish := 0, 1
_, err := m.MoveCursor(1)
if m.cursorIndex != finish || err != nil {
t.Errorf("'MoveCursor(1)' should have nil error but got: '%#v' and move the Cursor to index '%d', but got: %d", err, finish, m.cursorIndex)
}
start, finish = 15, 14
m.cursorIndex = start
_, err = m.MoveCursor(-1)
if m.cursorIndex != finish || err != nil {
t.Errorf("'MoveCursor(-1)' should have nil error but got: '%#v' and move the Cursor to index '%d', but got: %d", err, finish, m.cursorIndex)
}
start, finish = 55, 56
m.cursorIndex = start
err = m.MoveCursorItemBy(1)
if m.cursorIndex != finish || err != nil {
t.Errorf("'MoveItem(1)' should have nil error but got: '%#v' and move the Cursor to index '%d', but got: %d", err, finish, m.cursorIndex)
}
m.lineOffset = 15
start, finish = 15, 14
m.cursorIndex = start
err = m.MoveCursorItemBy(-1)
if m.cursorIndex != finish || err != nil {
t.Errorf("'MoveItem(-1)' should have nil error but got: '%#v' and move the Cursor to index '%d', but got: %d", err, finish, m.cursorIndex)
}
if m.lineOffset != 14 {
t.Errorf("up movement should change the Item offset to '14' but got: %d", m.lineOffset)
}
finish = m.Len() - 1
err = m.Bottom()
if m.cursorIndex != finish || err != nil {
t.Errorf("'Bottom()' should have nil error but got: '%#v' and move the Cursor to last index: '%d', but got: %d", err, m.Len()-1, m.cursorIndex)
}
finish = 0
m.cursorIndex = start
err = m.Top()
if m.cursorIndex != finish || err != nil {
t.Errorf("'Top()' should have nil error but got: '%#v' and move the Cursor to index '%d', but got: %d", err, finish, m.cursorIndex)
}
_, err = m.SetCursor(10)
if m.cursorIndex != 10 || err != nil {
t.Errorf("SetCursor should set the cursor to index '10' but gut '%d' and err should be nil but got '%s'", m.cursorIndex, err)
}
}
// WindowMsg
func TestWindowMsg(t *testing.T) {
m := NewModel()
width, height := 80, 50
newModel, cmd := m.Update(tea.WindowSizeMsg{Width: width, Height: height})
m, _ = newModel.(Model)
if cmd != nil {
t.Errorf("comand should be nil and not: '%#v'", cmd)
}
if m.Width != width {
t.Errorf("the Width should be %#v and not: %#v", width, m.Width)
}
if m.Height != height {
t.Errorf("the Width should be %#v and not: %#v", height, m.Height)
}
}
// TestGetIndex sets a equals function and searches After the index of a specific item with GetIndex
func TestGetIndex(t *testing.T) {
m := NewModel()
_, err := m.GetIndex(StringItem("z"))
if err == nil {
t.Errorf("Get Index should return a error but got nil")
}
m.AddItems(MakeStringerList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z")...)
m.EqualsFunc = func(a, b fmt.Stringer) bool { return a.String() == b.String() }
index, err := m.GetIndex(StringItem("z"))
if err != nil {
t.Errorf("GetIndex should not return a err: %s", err)
}
if index != m.Len()-1 {
t.Errorf("GetIndex returns wrong index: '%d' instead of '%d'", index, m.Len()-1)
}
}
// TestWithinBorder test if indexes are within the listborders
func TestWithinBorder(t *testing.T) {
m := NewModel()
_, err := m.ValidIndex(0)
if _, ok := err.(NoItems); !ok {
t.Errorf("a empty list has no item '0', should return a NoItems error, but got: %#v", err)
}
}
// TestSetCursor tests if the LineOffset and Cursor positions are correct
func TestSetCursor(t *testing.T) {
m := NewModel()
m.Height = 50
m.Width = 80
m.AddItems(MakeStringerList("\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n", "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n", "")...)
type test struct {
oldLineOffset int
oldCursorIndex int
target int
newLineOffset int
newCursorIndex int
}
toTest := []test{
// forwards
{0, 0, -2, 0, 0}, // wrong request -> no change
{0, 0, 2, 5, 2},
{0, 4, 8, 8, 8},
{0, 5, 0, 5, 0},
{0, 0, 19, 38, 19},
{0, 0, 25, 44, 25},
{0, 0, 100, 0, 0}, // wrong request -> no change
// backwards
{45, m.Len() - 1, -2, 45, m.Len() - 1}, // wrong request -> no change
{45, m.Len() - 1, 2, 5, 2},
{45, m.Len() - 1, 8, 5, 8},
{45, m.Len() - 1, 0, 5, 0},
{45, m.Len() - 1, 19, 5, 19},
{45, m.Len() - 1, 25, 5, 25},
{45, m.Len() - 1, 100, 45, m.Len() - 1}, // wrong request -> no change
}
for i, tCase := range toTest {
m.cursorIndex = tCase.oldCursorIndex
m.lineOffset = tCase.oldLineOffset
m.SetCursor(tCase.target)
if m.cursorIndex != tCase.newCursorIndex {
t.Errorf("In Test number: %d, the returned cursor index is wrong:\n'%#v' and should be:\n'%#v' after requesting target: %d", i, m.cursorIndex, tCase.newCursorIndex, tCase.target)
}
if m.lineOffset != tCase.newLineOffset {
t.Errorf("In Test number: %d, the returned Line Offset is wrong:\n'%#v' and should be:\n'%#v' after requesting target: %d", i, m.lineOffset, tCase.newLineOffset, tCase.target)
}
}
}
// TestMoveItem test wrong arguments
func TestMoveItem(t *testing.T) {
m := NewModel()
err := m.MoveCursorItemBy(0)
err, ok := err.(OutOfBounds)
if !ok {
t.Errorf("MoveItem called on a empty list should return a OutOfBounds error, but got: %s", err)
}
m.AddItems(MakeStringerList("")...)
err = m.MoveCursorItemBy(0)
if ok && err != nil {
t.Errorf("MoveItem(0) should not return a error on a not empty list, but got '%s'", err)
}
err = m.MoveCursorItemBy(1)
err, ok = err.(OutOfBounds)
if !ok {
t.Errorf("MoveItem should return a OutOfBounds error if traget is beyond list border, but got: '%s'", err)
}
}
// TestView tests if View returns a String (of a returned lines)
func TestView(t *testing.T) {
m := NewModel()
if m.View() == "" {
t.Error("View should never return a empty string since this does not update the screen") // TODO changed this in bubbletea
}
if _, err := m.Lines(); err != nil && m.View() != err.Error() {
t.Error("if Lines returnes a error View should return the error string")
}
testStr := "test"
m.AddItems(MakeStringerList(testStr, testStr)...)
m.SetCursor(1)
if _, err := m.Lines(); err == nil {
t.Error("a none empty list should return a error when the screen is to small to displax anything")
}
m.Height = 10
m.Width = 100
if _, err := m.Lines(); err != nil || !strings.Contains(m.View(), testStr) {
t.Errorf("a none empty list should not return a error but got:\n%sand the content should be within the returned string from View:\n%s", err, m.View())
}
}
// TestRemoveIndex test if the item at the index was removed
func TestRemoveIndex(t *testing.T) {
m := NewModel()
item, err := m.RemoveIndex(0)
if item != nil && err != nil {
t.Error("RemoveIndex should return a error and a nil value when the index is not valid")
}
testStr := "test"
m.AddItems(MakeStringerList(testStr)...)
item, err = m.RemoveIndex(0)
if item.String() != testStr && err != nil && m.Len() != 0 {
t.Error("RemoveIndex should return no error and the corresponding string value when the index is valid")
}
}
// TestResetItems test if list is replaced
func TestResetItems(t *testing.T) {
m := NewModel()
testStr := "test"
m.AddItems(MakeStringerList(testStr)...)
secondStr := "replaced"
m.ResetItems(MakeStringerList(secondStr)...)
if item, err := m.RemoveIndex(0); item.String() != secondStr || err == nil || m.Len() > 1 {
t.Error("the list was not replaced, but should have been")
}
}
// TestUpdateItem
func TestUpdateItem(t *testing.T) {
m := NewModel()
testStr := "test"
m.AddItems(MakeStringerList(testStr)...)
m.UpdateItem(0, func(fmt.Stringer) (fmt.Stringer, error) { return nil, nil })
if item, err := m.RemoveIndex(0); item != nil || err == nil {
t.Error("UpdateItem should return a command and the item should be deleted if the returned Stringer is nil")
}
m.AddItems(MakeStringerList(testStr)...)
secondStr := "replaced"
m.UpdateItem(0, func(fmt.Stringer) (fmt.Stringer, error) { return StringItem(secondStr), nil })
if item, err := m.RemoveIndex(0); item.String() != secondStr || err == nil {
t.Error("UpdateItem should return a command and the item should be replaced")
}
}