gilo/editor/row_test.go

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package editor
import "testing"
func TestNewRow(t *testing.T) {
str := "abcdefg"
row := newRow(str)
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got := string(row.chars)
want := str
if got != want {
t.Errorf("Row chars not equal to original string. Row: %q, String: %q", row, str)
}
}
func TestRowSize(t *testing.T) {
str := "abcdefg"
row := newRow(str)
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got := row.size()
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want := 7
if got != want {
t.Errorf("Row size not equal to number of runes in original string")
}
}
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func TestRenderSize(t *testing.T) {
str := "\tabcdefg"
row := newRow(str)
row.update()
got := row.rSize()
want := 11
if got != want {
t.Errorf("Row rsize not equal to number of runes in original string")
}
}
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type insertRune struct {
initial string
ch rune
at int
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}
var insertRuneTests = []insertRune{
{"abde", 'c', 2},
{"bcde", 'a', 0},
{"abcd", 'e', 4},
{"abcd", 'e', 17},
{"abcd", 'e', -2},
}
func TestInsertRune(t *testing.T) {
for _, test := range insertRuneTests {
row := newRow(test.initial)
row.insertRune(test.ch, test.at)
if row.size() != 5 {
t.Errorf("Row size after inserting rune at index [%d] is %d, should be %d", test.at, row.size(), 5)
}
got := row.toString()
want := "abcde"
if got != want {
t.Errorf("Row after update is '%s', should be '%s'", got, want)
}
}
}