52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
package tokenize
|
|
|
|
import (
|
|
"testing"
|
|
)
|
|
|
|
func TestMoveCursorByRunes(t *testing.T) {
|
|
tokenAPI := NewAPI("")
|
|
tokenAPI.Input.Rune.MoveCursor('ɹ')
|
|
tokenAPI.Input.Rune.MoveCursor('n')
|
|
tokenAPI.Input.Rune.MoveCursor('u')
|
|
tokenAPI.Input.Rune.MoveCursor('\r')
|
|
tokenAPI.Input.Rune.MoveCursor('\n')
|
|
tokenAPI.Input.Rune.MoveCursor('ǝ')
|
|
|
|
AssertEqual(t, "line 2, column 2", tokenAPI.Input.Cursor(), "Cursor position after moving by rune")
|
|
AssertEqual(t, 8, tokenAPI.pointers.offset, "Offset after moving by rune")
|
|
}
|
|
|
|
func TestWhenMovingCursor_CursorPositionIsUpdated(t *testing.T) {
|
|
for _, test := range []struct {
|
|
name string
|
|
input []string
|
|
byte int
|
|
rune int
|
|
line int
|
|
column int
|
|
}{
|
|
{"No input at all", []string{""}, 0, 0, 0, 0},
|
|
{"One ASCII char", []string{"a"}, 1, 1, 0, 1},
|
|
{"Multiple ASCII chars", []string{"abc"}, 3, 3, 0, 3},
|
|
{"One newline", []string{"\n"}, 1, 1, 1, 0},
|
|
{"Carriage return", []string{"\r\r\r"}, 3, 3, 0, 3},
|
|
{"One UTF8 3 byte char", []string{"⌘"}, 3, 1, 0, 1},
|
|
{"Mixture", []string{"Hello\n\npretty\nW⌘O⌘R⌘L⌘D"}, 31, 23, 3, 9},
|
|
{"Multiple calls", []string{"hello", "world"}, 10, 10, 0, 10},
|
|
} {
|
|
tokenAPI := NewAPI("")
|
|
for _, s := range test.input {
|
|
for _, r := range s {
|
|
tokenAPI.Input.Rune.MoveCursor(r)
|
|
}
|
|
}
|
|
if tokenAPI.pointers.line != test.line {
|
|
t.Errorf("[%s] Unexpected line offset %d (expected %d)", test.name, tokenAPI.pointers.line, test.line)
|
|
}
|
|
if tokenAPI.pointers.column != test.column {
|
|
t.Errorf("[%s] Unexpected column offset %d (expected %d)", test.name, tokenAPI.pointers.column, test.column)
|
|
}
|
|
}
|
|
}
|