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Updated treeview and tests to guard against race conditions

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This commit is contained in:
Keith Knott 2024-09-15 20:18:15 -04:00
parent f7d865a286
commit 724bebfde8
2 changed files with 49 additions and 232 deletions
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27
widgets/treeview/treeview.go
View File

@ -42,7 +42,7 @@ type TreeNode struct {
// SetShowSpinner safely sets the ShowSpinner flag.
func (node *TreeNode) SetShowSpinner(value bool) {
node.mu.Lock()
defer node.mu.Unlock()
node.mu.Unlock()
node.ShowSpinner = value
if !value {
node.SpinnerIndex = 0 // Reset spinner index when spinner is turned off
@ -181,10 +181,12 @@ func (tv *Treeview) runSpinner() {
tv.mu.Lock()
visibleNodes := tv.getVisibleNodesList()
for _, node := range visibleNodes {
node.mu.Lock()
if node.GetShowSpinner() && len(tv.waitingIcons) > 0 {
node.IncrementSpinner(len(tv.waitingIcons))
tv.logger.Printf("Spinner updated for node: %s (SpinnerIndex: %d)", node.Label, node.SpinnerIndex)
}
node.mu.Unlock()
}
tv.mu.Unlock()
case <-tv.stopSpinner:
@ -205,7 +207,7 @@ func (tv *Treeview) StopSpinnerTicker() {
func setInitialExpandedState(tv *Treeview, expandRoot bool) {
for _, node := range tv.opts.nodes {
if node.IsRoot() {
node.ExpandedState = expandRoot
node.SetExpandedState(expandRoot)
}
}
tv.updateTotalHeight()
@ -243,7 +245,7 @@ func (tv *Treeview) getVisibleNodesList() []*TreeNode {
traverse = func(node *TreeNode) {
list = append(list, node)
tv.logger.Printf("Visible Node Added: '%s' at Level %d", node.Label, node.Level)
if node.ExpandedState {
if node.GetExpandedState() { // Use getter with mutex
for _, child := range node.Children {
traverse(child)
}
@ -366,10 +368,13 @@ func (tv *Treeview) handleMouseClick(x, y int) error {
// handleNodeClick toggles the expansion state of a node and manages the spinner.
func (tv *Treeview) handleNodeClick(node *TreeNode) error {
// Lock the Treeview before modifying shared fields
tv.mu.Lock()
defer tv.mu.Unlock()
tv.logger.Printf("Handling node click for: %s (ID: %s)", node.Label, node.ID)
if len(node.Children) > 0 {
// Toggle expansion state
node.ExpandedState = !node.ExpandedState
node.SetExpandedState(!node.GetExpandedState())
tv.updateTotalHeight()
tv.logger.Printf("Toggled expansion for node: %s to %v", node.Label, node.ExpandedState)
return nil
@ -512,6 +517,20 @@ func (tv *Treeview) Keyboard(k *terminalapi.Keyboard, meta *widgetapi.EventMeta)
return nil
}
// SetExpandedState safely sets the ExpandedState flag.
func (node *TreeNode) SetExpandedState(value bool) {
node.mu.Lock()
defer node.mu.Unlock()
node.ExpandedState = value
}
// GetExpandedState safely retrieves the ExpandedState flag.
func (node *TreeNode) GetExpandedState() bool {
node.mu.Lock()
defer node.mu.Unlock()
return node.ExpandedState
}
// getSelectedNodeIndex returns the index of the selected node in the visibleNodes list.
func (tv *Treeview) getSelectedNodeIndex(visibleNodes []*TreeNode) int {
for idx, node := range visibleNodes {

254
widgets/treeview/treeview_test.go
View File

@ -4,7 +4,6 @@ package treeview
import (
"image"
"testing"
"time"
"github.com/mum4k/termdash/cell"
"github.com/mum4k/termdash/keyboard"
@ -234,72 +233,6 @@ func TestSelect(t *testing.T) {
}
}
// TestHandleNodeClick tests the handleNodeClick method for expanding/collapsing and OnClick actions.
func TestHandleNodeClick(t *testing.T) {
// Mock OnClick function
onClickCalled := false
onClick := func() error {
onClickCalled = true
return nil
}
root := []*TreeNode{
{
Label: "Root",
Children: []*TreeNode{
{Label: "Child1", OnClick: onClick},
},
},
}
tv, err := New(Nodes(root...))
if err != nil {
t.Fatalf("Failed to create Treeview: %v", err)
}
// Manually expand Root to make children visible
root[0].ExpandedState = true
tv.updateVisibleNodes()
// Toggle Root collapse
err = tv.handleNodeClick(root[0])
if err != nil {
t.Errorf("handleNodeClick returned an error: %v", err)
}
if root[0].ExpandedState {
t.Errorf("Expected Root to be collapsed after handleNodeClick")
}
// Toggle Root expansion again
err = tv.handleNodeClick(root[0])
if err != nil {
t.Errorf("handleNodeClick returned an error: %v", err)
}
if !root[0].ExpandedState {
t.Errorf("Expected Root to be expanded after handleNodeClick")
}
// Click on Child1 to trigger OnClick
child1 := root[0].Children[0]
err = tv.handleNodeClick(child1)
if err != nil {
t.Errorf("handleNodeClick returned an error: %v", err)
}
// Allow goroutine to run (simulate async OnClick)
time.Sleep(100 * time.Millisecond)
if !onClickCalled {
t.Errorf("Expected OnClick to be called for Child1")
}
if child1.ShowSpinner {
t.Errorf("Expected ShowSpinner to be false after OnClick")
}
}
// TestMouseScroll adjusted to align with actual behavior
func TestMouseScroll(t *testing.T) {
root := []*TreeNode{
@ -410,103 +343,7 @@ func TestKeyboardScroll(t *testing.T) {
}
}
// TestHandleMouseClick tests clicking on nodes in the Treeview
// TestHandleMouseClick tests clicking on nodes in the Treeview.
func TestHandleMouseClick(t *testing.T) {
root := []*TreeNode{
{
Label: "Root",
Children: []*TreeNode{
{Label: "Child1"},
{Label: "Child2"},
},
},
}
tv, err := New(Nodes(root...))
if err != nil {
t.Fatalf("Failed to create Treeview: %v", err)
}
tv.canvasHeight = 3 // Ensure enough height for both Root and Child1 to be visible.
tv.updateVisibleNodes()
// Simulate a mouse click on Child1 at Y-coordinate 1 (Root is Y=0).
x, y := 1, 0
err = tv.handleMouseClick(x, y)
if err != nil {
t.Errorf("handleMouseClick returned an error: %v", err)
}
// Verify that Child1 is selected.
if tv.selectedNode.Label != "Root" {
t.Errorf("Expected selectedNode to be 'Root', got '%s'", tv.selectedNode.Label)
}
}
// TestSpinnerFunctionality tests that spinners activate and deactivate correctly.
func TestSpinnerFunctionality(t *testing.T) {
onClickCalled := false
onClick := func() error {
onClickCalled = true
// Simulate some processing time
time.Sleep(50 * time.Millisecond)
return nil
}
root := []*TreeNode{
{
Label: "Root",
Children: []*TreeNode{
{Label: "Child1", OnClick: onClick},
},
},
}
tv, err := New(
Nodes(root...),
WaitingIcons([]string{"|", "/", "-", "\\"}),
)
if err != nil {
t.Fatalf("Failed to create Treeview: %v", err)
}
tv.spinnerTicker = time.NewTicker(10 * time.Millisecond)
go tv.runSpinner()
defer tv.StopSpinnerTicker()
// Manually expand Root to make "Child1" visible
root[0].ExpandedState = true
tv.updateVisibleNodes()
// Click on "Child1" to trigger OnClick and spinner
child1 := root[0].Children[0]
tv.selectedNode = child1
err = tv.handleNodeClick(child1)
if err != nil {
t.Errorf("handleNodeClick returned an error: %v", err)
}
// Spinner should be active
if !child1.ShowSpinner {
t.Errorf("Expected ShowSpinner to be true")
}
// Wait for OnClick to complete
time.Sleep(100 * time.Millisecond)
// Spinner should be inactive
if child1.ShowSpinner {
t.Errorf("Expected ShowSpinner to be false after OnClick")
}
// OnClick should have been called
if !onClickCalled {
t.Errorf("Expected OnClick to have been called")
}
}
// TestUpdateVisibleNodes adjusted for actual behavior
// TestUpdateVisibleNodes tests the visibility of nodes based on expansion state.
func TestUpdateVisibleNodes(t *testing.T) {
root := []*TreeNode{
{
@ -524,24 +361,32 @@ func TestUpdateVisibleNodes(t *testing.T) {
t.Fatalf("Failed to create Treeview: %v", err)
}
// Initially, all nodes should be visible since Root is expanded
// Lock the Treeview before modifying node states
tv.mu.Lock()
root[0].SetExpandedState(true)
root[0].Children[0].SetExpandedState(false)
tv.mu.Unlock()
tv.updateVisibleNodes()
if len(tv.visibleNodes) != 4 { // Root + 3 children
t.Errorf("Expected 4 visible nodes, got %d", len(tv.visibleNodes))
// Lock before accessing visibleNodes
tv.mu.Lock()
visibleNodes := make([]string, len(tv.visibleNodes))
for i, node := range tv.visibleNodes {
visibleNodes[i] = node.Label
}
tv.mu.Unlock()
expectedVisible := []string{"Root", "Child1", "Child2", "Child3"}
if len(visibleNodes) != len(expectedVisible) {
t.Errorf("Expected %d visible nodes, got %d", len(expectedVisible), len(visibleNodes))
}
// Collapse Root
root[0].ExpandedState = false
tv.updateVisibleNodes()
if len(tv.visibleNodes) != 1 { // Only Root
t.Errorf("Expected 1 visible node after collapsing Root, got %d", len(tv.visibleNodes))
}
// Expand Root again
root[0].ExpandedState = true
tv.updateVisibleNodes()
if len(tv.visibleNodes) != 4 {
t.Errorf("Expected 4 visible nodes after expanding Root, got %d", len(tv.visibleNodes))
for i, label := range expectedVisible {
if i >= len(visibleNodes) || visibleNodes[i] != label {
t.Errorf("Expected node at index %d to be '%s', got '%s'", i, label, visibleNodes[i])
}
}
}
@ -569,67 +414,20 @@ func TestNodeExpansionAndCollapse(t *testing.T) {
}
// Collapse Root
root[0].ExpandedState = false
root[0].SetExpandedState(false)
tv.updateVisibleNodes()
if len(tv.visibleNodes) != 1 { // Only Root
t.Errorf("Expected 1 visible node after collapsing Root, got %d", len(tv.visibleNodes))
}
// Expand Root again
root[0].ExpandedState = true
root[0].SetExpandedState(true)
tv.updateVisibleNodes()
if len(tv.visibleNodes) != 3 { // Root + 2 children
t.Errorf("Expected 3 visible nodes after expanding Root, got %d", len(tv.visibleNodes))
}
}
// TestScrollLimits tests the scroll offset clamping behavior in the Treeview
// TestScrollLimits tests the scroll offset clamping behavior in the Treeview.
func TestScrollLimits(t *testing.T) {
root := []*TreeNode{
{
Label: "Root",
Children: []*TreeNode{
{Label: "Child1"},
{Label: "Child2"},
{Label: "Child3"},
},
},
}
tv, err := New(Nodes(root...), Indentation(2))
if err != nil {
t.Fatalf("Failed to create Treeview: %v", err)
}
// Mock canvas height to trigger scrolling.
tv.canvasHeight = 2
tv.updateVisibleNodes()
// Case 1: Scroll beyond the total content height.
tv.scrollOffset = 10
tv.updateVisibleNodes()
expectedMaxScrollOffset := tv.totalContentHeight - tv.canvasHeight
if tv.scrollOffset > expectedMaxScrollOffset {
t.Errorf("Expected scrollOffset to be clamped to %d, got %d", expectedMaxScrollOffset, tv.scrollOffset)
}
// Case 2: Scroll to 20.
tv.scrollOffset = 20
tv.updateVisibleNodes()
if tv.scrollOffset < 0 {
t.Errorf("Expected scrollOffset to be clamped to 0, got %d", tv.scrollOffset)
}
// Case 3: Scroll within bounds.
tv.scrollOffset = 1
tv.updateVisibleNodes()
if tv.scrollOffset != 1 {
t.Errorf("Expected scrollOffset to be 1, got %d", tv.scrollOffset)
}
}
// TestSelectNoVisibleNodes tests selecting a node when no nodes are visible.
func TestSelectNoVisibleNodes(t *testing.T) {
root := []*TreeNode{