1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273

package acp_test

import (
	"strings"
	"testing"

	"github.com/gdamore/tcell/v2"

	"rickub.com/turbo-editors/turbo-core/acp"
	"rickub.com/turbo-editors/turbo-core/theme"
	"rickub.com/turbo-editors/turbo-core/ui"
)

// trace is six lines of the kind of thing that gets pasted into an agent's
// box: a log, longer than the box is tall.
const trace = "panic: runtime error: index out of range [3] with length 3\n" +
	"goroutine 1 [running]:\n" +
	"main.pick(...)\n" +
	"\t/src/p/main.go:12\n" +
	"main.main()\n" +
	"\t/src/p/main.go:7 +0x1d"

func TestAMultiLinePasteStandsInTheBoxAsAToken(t *testing.T) {
	// The ticket's own example: a paste a few rows tall would make the box
	// unreadable and push what was typed around it off the screen.
	view, _ := newView(t, 60, 12)
	typeInto(view, "here is the trace ")
	view.Paste(trace)
	typeInto(view, " what is failing?")

	want := "here is the trace [Pasted #1 · 6 lines · 151 chars] what is failing?"
	if got := view.Input(); got != want {
		t.Errorf("Input() = %q\nwant      %q", got, want)
	}
}

func TestAShortSingleLinePasteGoesInAsIfTyped(t *testing.T) {
	// A path, a command, an identifier: what you paste to edit around. The
	// newline copying a line brings along is dropped, not made a second line.
	view, _ := newView(t, 60, 12)
	view.Paste("go build ./...\n")

	if got := view.Input(); got != "go build ./..." {
		t.Errorf("Input() = %q, want the line itself", got)
	}
}

func TestALongSingleLinePasteIsKeptAsideToo(t *testing.T) {
	view, _ := newView(t, 60, 12)
	view.Paste(strings.Repeat("x", 300))

	if got := view.Input(); got != "[Pasted #1 · 1 line · 300 chars]" {
		t.Errorf("Input() = %q, want a token for one long line", got)
	}
}

func TestWindowsLineEndingsCountAsLines(t *testing.T) {
	view, _ := newView(t, 60, 12)
	view.Paste("one\r\ntwo\r\nthree\r\n")

	if got := view.Input(); got != "[Pasted #1 · 3 lines · 13 chars]" {
		t.Errorf("Input() = %q", got)
	}
}

func TestTheAgentReceivesThePastedTextWhereTheTokenStood(t *testing.T) {
	// This is the point: the token is for the box; the model gets the bytes.
	view, agent := mentioningView(t, nil)
	agent.handshake()
	waitFor(t, "ready", view.Session().Ready)

	typeInto(view, "here is the trace ")
	view.Paste(trace)
	typeInto(view, " what is failing?")
	view.Send()

	blocks := promptBlocks(t, agent.read())
	if len(blocks) != 1 || blocks[0]["type"] != "text" {
		t.Fatalf("the prompt is %v, want one text block", blocks)
	}
	if got := blocks[0]["text"]; got != "here is the trace "+trace+" what is failing?" {
		t.Errorf("the agent received %q", got)
	}

	// The conversation keeps the token, so the exchange stays readable.
	if got := textOf(view.Session().Entries(), acp.EntryUser); !strings.Contains(got, "[Pasted #1 · 6 lines") || strings.Contains(got, "goroutine") {
		t.Errorf("the conversation says %q, want the token and not the trace", got)
	}
}

func TestAFileNamedInsideAPasteIsNotTakenForAMention(t *testing.T) {
	// A paste is sent byte for byte. An "@name" in a pasted log is characters,
	// not a request to attach the file.
	view, agent := mentioningView(t, func(string) (string, error) { return "package internal\n", nil })
	agent.handshake()
	waitFor(t, "ready", view.Session().Ready)

	pasted := "see @internal/scanner.go for details\nand the next line"
	view.Paste(pasted)
	view.Send()

	blocks := promptBlocks(t, agent.read())
	if len(blocks) != 1 || blocks[0]["type"] != "text" || blocks[0]["text"] != pasted {
		t.Errorf("the prompt is %v, want the pasted text alone, verbatim", blocks)
	}
}

func TestAMentionTypedBesideATokenStillWorks(t *testing.T) {
	view, agent := mentioningView(t, func(string) (string, error) { return "package internal\n", nil })
	agent.handshake()
	waitFor(t, "ready", view.Session().Ready)

	typeInto(view, "compare @internal/scanner.go with ")
	view.Paste(trace)
	view.Send()

	blocks := promptBlocks(t, agent.read())
	if len(blocks) != 3 || blocks[1]["type"] != "resource" {
		t.Fatalf("the prompt has %d blocks, want text, resource, text: %v", len(blocks), blocks)
	}
	if blocks[2]["text"] != " with "+trace {
		t.Errorf("block 2 = %q, want the words and the trace", blocks[2]["text"])
	}
}

func TestBackspaceRemovesAWholeToken(t *testing.T) {
	// A token missing its last bracket stands for nothing, so the token is
	// one thing to the editing keys.
	view, agent := mentioningView(t, nil)
	agent.handshake()
	waitFor(t, "ready", view.Session().Ready)

	typeInto(view, "a ")
	view.Paste(trace)
	view.HandleKey(tcell.NewEventKey(tcell.KeyBackspace2, 0, tcell.ModNone))

	if got := view.Input(); got != "a " {
		t.Errorf("Input() = %q after Backspace, want the token gone whole", got)
	}

	// And its text goes with it: nothing of the trace reaches the agent.
	typeInto(view, "b")
	view.Send()
	blocks := promptBlocks(t, agent.read())
	if len(blocks) != 1 || blocks[0]["text"] != "a b" {
		t.Errorf("the agent received %v, want just %q", blocks, "a b")
	}
}

func TestDeleteAtTheStartOfATokenRemovesItWhole(t *testing.T) {
	view, _ := newView(t, 60, 12)
	view.Paste(trace)
	typeInto(view, "!")
	view.HandleKey(tcell.NewEventKey(tcell.KeyHome, 0, tcell.ModNone))
	view.HandleKey(tcell.NewEventKey(tcell.KeyDelete, 0, tcell.ModNone))

	if got := view.Input(); got != "!" {
		t.Errorf("Input() = %q after Delete at the token's start", got)
	}
}

func TestTheArrowKeysStepOverATokenRatherThanInto(t *testing.T) {
	view, _ := newView(t, 60, 12)
	view.Paste(trace)
	typeInto(view, "x")

	view.HandleKey(tcell.NewEventKey(tcell.KeyLeft, 0, tcell.ModNone)) // before x
	view.HandleKey(tcell.NewEventKey(tcell.KeyLeft, 0, tcell.ModNone)) // over the token
	typeInto(view, "y")
	view.HandleKey(tcell.NewEventKey(tcell.KeyRight, 0, tcell.ModNone)) // over it again
	typeInto(view, "z")

	if got := view.Input(); got != "y[Pasted #1 · 6 lines · 151 chars]zx" {
		t.Errorf("Input() = %q", got)
	}
}

func TestAMoveByRowThatLandsInsideATokenIsPushedToItsEdge(t *testing.T) {
	// Only ↑/↓ can land inside one; typing into the middle of a token would
	// break it into text that stands for nothing.
	view, _ := newView(t, 40, 12) // rows of 37 runes
	typeInto(view, strings.Repeat("a", 30)+" ")
	view.Paste(trace) // the 34-rune token wraps onto the second row
	view.HandleKey(tcell.NewEventKey(tcell.KeyUp, 0, tcell.ModNone))
	view.HandleKey(tcell.NewEventKey(tcell.KeyHome, 0, tcell.ModNone))
	view.HandleKey(tcell.NewEventKey(tcell.KeyRight, 0, tcell.ModNone))
	view.HandleKey(tcell.NewEventKey(tcell.KeyDown, 0, tcell.ModNone)) // column 1 of the token's row
	typeInto(view, "!")

	got := view.Input()
	if !strings.Contains(got, "![Pasted") && !strings.Contains(got, "chars]!") {
		t.Errorf("Input() = %q, want the ! at an edge of the token", got)
	}
}

func TestATokenIsDrawnInItsOwnColour(t *testing.T) {
	view, _ := newView(t, 60, 12)
	typeInto(view, "see ")
	view.Paste(trace)

	screen := tcell.NewSimulationScreen("UTF-8")
	if err := screen.Init(); err != nil {
		t.Fatal(err)
	}
	defer screen.Fini()
	screen.SetSize(60, 12)
	th, err := theme.Load(theme.DefaultName, "")
	if err != nil {
		t.Fatal(err)
	}
	view.Draw(ui.NewPainter(screen), th)
	screen.Show()

	cells, w, _ := screen.GetContents()
	row := 9 // the box's first row
	word, token := cells[row*w+2].Style, cells[row*w+2+len("see ")].Style
	if word == token {
		t.Error("the token is drawn in the same colour as the words around it")
	}
	if got := string(cells[row*w+2+len("see ")].Runes); got != "[" {
		t.Errorf("the token's first cell shows %q, want its bracket", got)
	}
}

func TestCtrlVPastesWhatTheEditorsClipboardHolds(t *testing.T) {
	view, _ := newView(t, 60, 12)
	view.OnPaste = func() string { return "one\ntwo\nthree" }

	view.HandleKey(tcell.NewEventKey(tcell.KeyCtrlV, 0, tcell.ModNone))

	if got := view.Input(); got != "[Pasted #1 · 3 lines · 13 chars]" {
		t.Errorf("Input() = %q after Ctrl-V", got)
	}
}

func TestShiftInsertPastesToo(t *testing.T) {
	view, _ := newView(t, 60, 12)
	view.OnPaste = func() string { return "short" }

	view.HandleKey(tcell.NewEventKey(tcell.KeyInsert, 0, tcell.ModShift))

	if got := view.Input(); got != "short" {
		t.Errorf("Input() = %q after Shift-Ins", got)
	}
}

func TestPasteNumbersRunOnAcrossPrompts(t *testing.T) {
	// "#1" in an earlier exchange is not the same thing as "#1" in this one.
	view, agent := mentioningView(t, nil)
	agent.handshake()
	waitFor(t, "ready", view.Session().Ready)

	view.Paste(trace)
	view.Send()
	agent.read()
	view.Paste(trace)

	if got := view.Input(); !strings.HasPrefix(got, "[Pasted #2 ") {
		t.Errorf("the second paste is %q, want #2", got)
	}
}

func TestAPasteGoesIntoTheBoxWhicheverPaneHadTheFocus(t *testing.T) {
	view, _ := newView(t, 60, 12)
	view.HandleKey(tcell.NewEventKey(tcell.KeyTab, 0, tcell.ModNone)) // to the conversation

	view.Paste("hello")
	typeInto(view, "!")

	if got := view.Input(); got != "hello!" {
		t.Errorf("Input() = %q, want the paste and the keystroke after it in the box", got)
	}
}