package serve

import "testing"

func TestParseRange(t *testing.T) {
	tests := []struct {
		value                 string
		offset, length        int64
		partial, shouldReject bool
	}{
		{"", 0, 10, false, false},
		{"bytes=2-5", 2, 4, true, false},
		{"bytes=7-", 7, 3, true, false},
		{"bytes=7-99", 7, 3, true, false},
		{"bytes=-3", 0, 0, false, true},
		{"bytes=10-11", 0, 0, false, true},
		{"items=0-1", 0, 0, false, true},
	}
	for _, test := range tests {
		offset, length, partial, err := parseRange(test.value, 10)
		if (err != nil) != test.shouldReject {
			t.Errorf("parseRange(%q) err=%v", test.value, err)
			continue
		}
		if err == nil && (offset != test.offset || length != test.length || partial != test.partial) {
			t.Errorf("parseRange(%q) = (%d,%d,%t), want (%d,%d,%t)", test.value, offset, length, partial, test.offset, test.length, test.partial)
		}
	}
}