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package tui
import "testing"
func TestParseMouseSGR(t *testing.T) {
type tc struct {
input []byte
expectedEvent MouseEvent
expectedConsumed int
}
tests := map[string]tc{
"left press at 1,1": {
input: []byte("\x1b[<0;1;1M"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MousePress, X: 0, Y: 0},
expectedConsumed: 9,
},
"left release at 1,1": {
input: []byte("\x1b[<0;1;1m"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MouseRelease, X: 0, Y: 0},
expectedConsumed: 9,
},
"middle press at 10,20": {
input: []byte("\x1b[<1;10;20M"),
expectedEvent: MouseEvent{Button: MouseMiddle, Action: MousePress, X: 9, Y: 19},
expectedConsumed: 11,
},
"right press at 5,5": {
input: []byte("\x1b[<2;5;5M"),
expectedEvent: MouseEvent{Button: MouseRight, Action: MousePress, X: 4, Y: 4},
expectedConsumed: 9,
},
"wheel up": {
input: []byte("\x1b[<64;10;10M"),
expectedEvent: MouseEvent{Button: MouseWheelUp, Action: MousePress, X: 9, Y: 9},
expectedConsumed: 12,
},
"wheel down": {
input: []byte("\x1b[<65;10;10M"),
expectedEvent: MouseEvent{Button: MouseWheelDown, Action: MousePress, X: 9, Y: 9},
expectedConsumed: 12,
},
"left drag": {
input: []byte("\x1b[<32;15;25M"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MouseDrag, X: 14, Y: 24},
expectedConsumed: 12,
},
"shift+left click": {
input: []byte("\x1b[<4;5;5M"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MousePress, X: 4, Y: 4, Mod: ModShift},
expectedConsumed: 9,
},
"alt+left click": {
input: []byte("\x1b[<8;5;5M"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MousePress, X: 4, Y: 4, Mod: ModAlt},
expectedConsumed: 9,
},
"ctrl+left click": {
input: []byte("\x1b[<16;5;5M"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MousePress, X: 4, Y: 4, Mod: ModCtrl},
expectedConsumed: 10,
},
"ctrl+shift+alt+left click": {
input: []byte("\x1b[<28;5;5M"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MousePress, X: 4, Y: 4, Mod: ModCtrl | ModShift | ModAlt},
expectedConsumed: 10,
},
"large coordinates": {
input: []byte("\x1b[<0;200;100M"),
expectedEvent: MouseEvent{Button: MouseLeft, Action: MousePress, X: 199, Y: 99},
expectedConsumed: 13,
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
event, consumed := parseMouseSGR(tt.input)
if consumed != tt.expectedConsumed {
t.Errorf("parseMouseSGR(%q) consumed %d bytes, want %d", tt.input, consumed, tt.expectedConsumed)
}
if event.Button != tt.expectedEvent.Button {
t.Errorf("parseMouseSGR(%q) button = %v, want %v", tt.input, event.Button, tt.expectedEvent.Button)
}
if event.Action != tt.expectedEvent.Action {
t.Errorf("parseMouseSGR(%q) action = %v, want %v", tt.input, event.Action, tt.expectedEvent.Action)
}
if event.X != tt.expectedEvent.X {
t.Errorf("parseMouseSGR(%q) X = %d, want %d", tt.input, event.X, tt.expectedEvent.X)
}
if event.Y != tt.expectedEvent.Y {
t.Errorf("parseMouseSGR(%q) Y = %d, want %d", tt.input, event.Y, tt.expectedEvent.Y)
}
if event.Mod != tt.expectedEvent.Mod {
t.Errorf("parseMouseSGR(%q) Mod = %v, want %v", tt.input, event.Mod, tt.expectedEvent.Mod)
}
})
}
}
func TestParseMouseSGR_Invalid(t *testing.T) {
type tc struct {
input []byte
}
tests := map[string]tc{
"empty": {input: []byte{}},
"too short": {input: []byte("\x1b[<")},
"missing M": {input: []byte("\x1b[<0;1;1")},
"wrong prefix": {input: []byte("\x1b[0;1;1M")},
"missing x": {input: []byte("\x1b[<0;;1M")},
"missing y": {input: []byte("\x1b[<0;1;M")},
"non-numeric button": {input: []byte("\x1b[<a;1;1M")},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
_, consumed := parseMouseSGR(tt.input)
if consumed != 0 {
t.Errorf("parseMouseSGR(%q) consumed %d bytes, want 0 for invalid input", tt.input, consumed)
}
})
}
}
func TestParseInput_MouseEvents(t *testing.T) {
type tc struct {
input []byte
expected MouseEvent
}
tests := map[string]tc{
"left click": {
input: []byte("\x1b[<0;10;20M"),
expected: MouseEvent{Button: MouseLeft, Action: MousePress, X: 9, Y: 19},
},
"right click": {
input: []byte("\x1b[<2;5;5M"),
expected: MouseEvent{Button: MouseRight, Action: MousePress, X: 4, Y: 4},
},
"wheel up": {
input: []byte("\x1b[<64;1;1M"),
expected: MouseEvent{Button: MouseWheelUp, Action: MousePress, X: 0, Y: 0},
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
events := parseInput(tt.input)
if len(events) != 1 {
t.Fatalf("parseInput(%q) returned %d events, want 1", tt.input, len(events))
}
me, ok := events[0].(MouseEvent)
if !ok {
t.Fatalf("event is not MouseEvent, got %T", events[0])
}
if me.Button != tt.expected.Button {
t.Errorf("parseInput(%q) button = %v, want %v", tt.input, me.Button, tt.expected.Button)
}
if me.Action != tt.expected.Action {
t.Errorf("parseInput(%q) action = %v, want %v", tt.input, me.Action, tt.expected.Action)
}
if me.X != tt.expected.X || me.Y != tt.expected.Y {
t.Errorf("parseInput(%q) pos = (%d,%d), want (%d,%d)", tt.input, me.X, me.Y, tt.expected.X, tt.expected.Y)
}
})
}
}
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