494 lines
12 KiB
Go
494 lines
12 KiB
Go
package core
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import "testing"
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// --------------------------------------------------
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// Window Tests (generated by ClaudeCode)
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// --------------------------------------------------
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func TestWindow_SetCursorLine(t *testing.T) {
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t.Run("clamps cursor below zero", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"line 1", "line 2", "line 3"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorLine(-5)
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if win.Cursor.Line != 0 {
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t.Errorf("expected cursor at line 0, got %d", win.Cursor.Line)
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}
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})
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t.Run("clamps cursor past end", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"line 1", "line 2", "line 3"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorLine(999)
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if win.Cursor.Line != 2 { // 3 lines, max index is 2
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t.Errorf("expected cursor at line 2, got %d", win.Cursor.Line)
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}
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})
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t.Run("allows valid position", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"line 1", "line 2", "line 3"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorLine(1)
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if win.Cursor.Line != 1 {
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t.Errorf("expected cursor at line 1, got %d", win.Cursor.Line)
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}
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})
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t.Run("handles empty buffer", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorLine(5)
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if win.Cursor.Line != 0 {
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t.Errorf("expected cursor at line 0 for empty buffer, got %d", win.Cursor.Line)
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}
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})
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}
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func TestWindow_SetCursorCol(t *testing.T) {
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t.Run("clamps to line length", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"hello"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorCol(999)
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// "hello" is 5 chars, max col should be 5 (after last char for insert mode)
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if win.Cursor.Col > 5 {
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t.Errorf("expected cursor col <= 5, got %d", win.Cursor.Col)
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}
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})
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t.Run("clamps below zero", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"hello"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorCol(-10)
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if win.Cursor.Col != 0 {
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t.Errorf("expected cursor col 0, got %d", win.Cursor.Col)
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}
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})
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t.Run("handles empty line", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{""}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorCol(5)
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if win.Cursor.Col != 0 {
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t.Errorf("expected cursor at col 0 on empty line, got %d", win.Cursor.Col)
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}
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})
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t.Run("allows cursor at end of line", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"hello"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetCursorCol(5) // After last char
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if win.Cursor.Col != 5 {
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t.Errorf("expected cursor at col 5, got %d", win.Cursor.Col)
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}
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})
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}
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func TestWindow_AdjustScroll(t *testing.T) {
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t.Run("scrolls down when cursor goes below viewport", func(t *testing.T) {
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// Create buffer with many lines
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lines := make([]string, 100)
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for i := range lines {
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lines[i] = "line"
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}
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buf := NewBufferBuilder().WithLines(lines).Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(24).
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Build()
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// Start at top
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win.SetCursorLine(0)
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win.AdjustScroll()
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initialScroll := win.ScrollY
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// Move cursor way down
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win.SetCursorLine(50)
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win.AdjustScroll()
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// Scroll should have increased
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if win.ScrollY <= initialScroll {
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t.Errorf("expected scroll to increase, was %d, now %d", initialScroll, win.ScrollY)
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}
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// Cursor should be visible
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viewport := win.ViewportHeight()
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if win.Cursor.Line < win.ScrollY || win.Cursor.Line >= win.ScrollY+viewport {
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t.Errorf("cursor at %d not visible in scroll range [%d, %d)",
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win.Cursor.Line, win.ScrollY, win.ScrollY+viewport)
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}
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})
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t.Run("scrolls up when cursor goes above viewport", func(t *testing.T) {
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lines := make([]string, 100)
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for i := range lines {
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lines[i] = "line"
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}
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buf := NewBufferBuilder().WithLines(lines).Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(24).
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Build()
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// Start at bottom
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win.SetCursorLine(80)
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win.AdjustScroll()
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initialScroll := win.ScrollY
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// Move cursor to top
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win.SetCursorLine(5)
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win.AdjustScroll()
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// Scroll should have decreased
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if win.ScrollY >= initialScroll {
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t.Errorf("expected scroll to decrease, was %d, now %d", initialScroll, win.ScrollY)
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}
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// Cursor should be visible
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viewport := win.ViewportHeight()
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if win.Cursor.Line < win.ScrollY || win.Cursor.Line >= win.ScrollY+viewport {
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t.Errorf("cursor at %d not visible in scroll range [%d, %d)",
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win.Cursor.Line, win.ScrollY, win.ScrollY+viewport)
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}
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})
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t.Run("respects scrolloff margin", func(t *testing.T) {
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lines := make([]string, 100)
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for i := range lines {
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lines[i] = "line"
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}
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buf := NewBufferBuilder().WithLines(lines).Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(24).
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Build()
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// Set scrolloff to 5
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opts := win.Options
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opts.ScrollOff = 5
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win.SetOptions(opts)
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// Move to line 20 and adjust
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win.SetCursorLine(20)
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win.AdjustScroll()
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viewport := win.ViewportHeight()
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distFromTop := win.Cursor.Line - win.ScrollY
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distFromBottom := (win.ScrollY + viewport - 1) - win.Cursor.Line
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// At least one should respect scrolloff
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if distFromTop < opts.ScrollOff && distFromBottom < opts.ScrollOff {
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t.Errorf("scrolloff %d not respected: top=%d, bottom=%d",
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opts.ScrollOff, distFromTop, distFromBottom)
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}
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})
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t.Run("handles scrolloff larger than half viewport", func(t *testing.T) {
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lines := make([]string, 100)
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for i := range lines {
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lines[i] = "line"
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}
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buf := NewBufferBuilder().WithLines(lines).Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(24).
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Build()
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// Set scrolloff larger than half viewport
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opts := win.Options
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opts.ScrollOff = 999
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win.SetOptions(opts)
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win.SetCursorLine(50)
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win.AdjustScroll()
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// Should not panic or error
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viewport := win.ViewportHeight()
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if win.Cursor.Line < win.ScrollY || win.Cursor.Line >= win.ScrollY+viewport {
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t.Error("cursor should still be visible with large scrolloff")
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}
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})
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t.Run("handles small viewport", func(t *testing.T) {
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lines := make([]string, 100)
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for i := range lines {
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lines[i] = "line"
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}
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buf := NewBufferBuilder().WithLines(lines).Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(5). // Very small
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Build()
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win.SetCursorLine(50)
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win.AdjustScroll()
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// Should not panic
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viewport := win.ViewportHeight()
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if viewport > 0 && (win.Cursor.Line < win.ScrollY || win.Cursor.Line >= win.ScrollY+viewport) {
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t.Error("cursor should be visible in small viewport")
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}
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})
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}
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func TestWindow_ViewportHeight(t *testing.T) {
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t.Run("calculates viewport height correctly", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(24).
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Build()
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// Height - 2 (status bar + command bar)
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expected := 22
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if win.ViewportHeight() != expected {
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t.Errorf("expected viewport height %d, got %d", expected, win.ViewportHeight())
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}
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})
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t.Run("handles small window", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(3).
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Build()
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// 3 - 2 = 1
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expected := 1
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if win.ViewportHeight() != expected {
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t.Errorf("expected viewport height %d, got %d", expected, win.ViewportHeight())
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}
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})
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t.Run("handles zero height", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithHeight(0).
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Build()
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// With height 0, viewport is 0 - 2 (status + command bars) = -2
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// This is an edge case that shouldn't occur in practice, but shouldn't panic
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result := win.ViewportHeight()
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expected := -2
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if result != expected {
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t.Errorf("expected viewport height %d for zero height window, got %d", expected, result)
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}
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})
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}
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func TestWindow_SetOptions(t *testing.T) {
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t.Run("updates options", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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newOpts := WinOptions{
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Number: false,
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RelativeNumber: false,
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GutterSize: 10,
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ScrollOff: 3,
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}
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win.SetOptions(newOpts)
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if win.Options.Number != false {
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t.Error("expected Number to be false")
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}
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if win.Options.RelativeNumber != false {
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t.Error("expected RelativeNumber to be false")
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}
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if win.Options.GutterSize != 10 {
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t.Errorf("expected GutterSize 10, got %d", win.Options.GutterSize)
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}
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if win.Options.ScrollOff != 3 {
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t.Errorf("expected ScrollOff 3, got %d", win.Options.ScrollOff)
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}
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})
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t.Run("can toggle individual options", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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// Get current options
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opts := win.Options
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originalNumber := opts.Number
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// Toggle number
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opts.Number = !opts.Number
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win.SetOptions(opts)
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if win.Options.Number == originalNumber {
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t.Error("Number option should have toggled")
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}
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})
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}
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func TestWindow_SetAnchor(t *testing.T) {
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t.Run("sets anchor line", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"a", "b", "c"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetAnchorLine(2)
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if win.Anchor.Line != 2 {
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t.Errorf("expected anchor line 2, got %d", win.Anchor.Line)
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}
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})
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t.Run("sets anchor col", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"hello world"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetAnchorCol(5)
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if win.Anchor.Col != 5 {
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t.Errorf("expected anchor col 5, got %d", win.Anchor.Col)
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}
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})
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}
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func TestWindow_SetDimensions(t *testing.T) {
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t.Run("updates width and height", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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win.SetDimensions(100, 50)
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if win.Width != 100 {
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t.Errorf("expected width 100, got %d", win.Width)
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}
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if win.Height != 50 {
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t.Errorf("expected height 50, got %d", win.Height)
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}
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})
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}
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func TestWindowBuilder(t *testing.T) {
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t.Run("builds with defaults", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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Build()
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// Should have default options
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if win.Options.Number != true {
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t.Error("expected default Number to be true")
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}
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if win.Options.RelativeNumber != true {
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t.Error("expected default RelativeNumber to be true")
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}
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if win.Options.ScrollOff != 8 {
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t.Errorf("expected default ScrollOff 8, got %d", win.Options.ScrollOff)
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}
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if win.Options.GutterSize != 5 {
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t.Errorf("expected default GutterSize 5, got %d", win.Options.GutterSize)
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}
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})
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t.Run("builds with custom cursor position", func(t *testing.T) {
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buf := NewBufferBuilder().
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WithLines([]string{"a", "b", "c"}).
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Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithCursorPos(2, 0).
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Build()
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if win.Cursor.Line != 2 {
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t.Errorf("expected cursor line 2, got %d", win.Cursor.Line)
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}
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if win.Cursor.Col != 0 {
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t.Errorf("expected cursor col 0, got %d", win.Cursor.Col)
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}
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})
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t.Run("builds with custom dimensions", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win := NewWindowBuilder().
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WithBuffer(&buf).
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WithDimensions(120, 40).
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Build()
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if win.Width != 120 {
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t.Errorf("expected width 120, got %d", win.Width)
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}
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if win.Height != 40 {
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t.Errorf("expected height 40, got %d", win.Height)
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}
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})
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t.Run("assigns unique IDs", func(t *testing.T) {
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buf := NewBufferBuilder().Build()
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win1 := NewWindowBuilder().WithBuffer(&buf).Build()
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win2 := NewWindowBuilder().WithBuffer(&buf).Build()
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if win1.Id == win2.Id {
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t.Errorf("expected unique IDs, both were %d", win1.Id)
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}
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})
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}
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