package web

import "testing"

func TestParseRange(t *testing.T) {
	tests := []struct {
		header        string
		start, length int64
		partial       bool
	}{
		{"", 0, 0, false},
		{"bytes=0-99", 0, 100, true},
		{"bytes=100-", 100, 900, true},
		{"bytes=900-5000", 900, 100, true},
		{"bytes=-500", 500, 500, true},
		{"bytes=-5000", 0, 1000, true},
		{"bytes=-0", 0, 0, false},
		{"bytes=-", 0, 0, false},
		{"bytes=--5", 0, 0, false},
		{"bytes=1000-", 0, 0, false},
		{"bytes=5-2", 0, 0, false},
	}
	for _, tt := range tests {
		start, length, partial := parseRange(tt.header, 1000)
		if start != tt.start || length != tt.length || partial != tt.partial {
			t.Errorf("%q: got %d,%d,%v want %d,%d,%v", tt.header,
				start, length, partial, tt.start, tt.length, tt.partial)
		}
	}
}