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|
package escape
import (
"reflect"
"testing"
)
func TestIsDivider(t *testing.T) {
runs := []struct {
name string
chars []byte
expected []int
}{
{
name: "not needed",
chars: []byte{'a', 'b', 'c'},
expected: []int{-1, -1, -1},
},
{
name: "two dashes",
chars: []byte{'-', '-'},
expected: []int{-1, -1},
},
{
name: "char afterwards",
chars: []byte{'-', '-', '-', ' ', 'a'},
expected: []int{-1, -1, -1, -1, -1},
},
{
name: "three dashes",
chars: []byte{'-', '-', '-'},
expected: []int{3, -1, -1},
},
{
name: "five dashes",
chars: []byte{'-', '-', '-', '-', '-'},
expected: []int{5, -1, -1, -1, -1},
},
{
name: "space after",
chars: []byte{'-', '-', '-', ' '},
expected: []int{4, -1, -1, -1},
},
{
name: "newline after",
chars: []byte{'-', '-', '-', '\n'},
expected: []int{3, -1, -1, -1},
},
{
name: "newline and space before",
chars: []byte{'\n', ' ', '-', '-', '-'},
expected: []int{-1, -1, 3, -1, -1},
},
{
name: "with placeholders",
chars: []byte{'\n', ' ', placeholderByte, '-', placeholderByte, '-', placeholderByte, '-'},
expected: []int{-1, -1, -1, 5, -1, -1, -1, -1},
},
}
for _, run := range runs {
t.Run(run.name, func(t *testing.T) {
var actual []int
for index := range run.chars {
output := IsDivider(run.chars, index)
actual = append(actual, output)
}
if !reflect.DeepEqual(actual, run.expected) {
t.Errorf("expected %+v but got %+v", run.expected, actual)
}
})
}
}
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