// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package adler32

import (
	"hash/adler32";
	"io";
	"testing";
)

type _Adler32Test struct {
	out uint32;
	in string;
}

var golden = []_Adler32Test {
	_Adler32Test{ 0x1, "" },
	_Adler32Test{ 0x620062, "a" },
	_Adler32Test{ 0x12600c4, "ab" },
	_Adler32Test{ 0x24d0127, "abc" },
	_Adler32Test{ 0x3d8018b, "abcd" },
	_Adler32Test{ 0x5c801f0, "abcde" },
	_Adler32Test{ 0x81e0256, "abcdef" },
	_Adler32Test{ 0xadb02bd, "abcdefg" },
	_Adler32Test{ 0xe000325, "abcdefgh" },
	_Adler32Test{ 0x118e038e, "abcdefghi" },
	_Adler32Test{ 0x158603f8, "abcdefghij" },
	_Adler32Test{ 0x3f090f02, "Discard medicine more than two years old." },
	_Adler32Test{ 0x46d81477, "He who has a shady past knows that nice guys finish last." },
	_Adler32Test{ 0x40ee0ee1, "I wouldn't marry him with a ten foot pole." },
	_Adler32Test{ 0x16661315, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave" },
	_Adler32Test{ 0x5b2e1480, "The days of the digital watch are numbered.  -Tom Stoppard" },
	_Adler32Test{ 0x8c3c09ea, "Nepal premier won't resign." },
	_Adler32Test{ 0x45ac18fd, "For every action there is an equal and opposite government program." },
	_Adler32Test{ 0x53c61462, "His money is twice tainted: 'taint yours and 'taint mine." },
	_Adler32Test{ 0x7e511e63, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977" },
	_Adler32Test{ 0xe4801a6a, "It's a tiny change to the code and not completely disgusting. - Bob Manchek" },
	_Adler32Test{ 0x61b507df, "size:  a.out:  bad magic" },
	_Adler32Test{ 0xb8631171, "The major problem is with sendmail.  -Mark Horton" },
	_Adler32Test{ 0x8b5e1904, "Give me a rock, paper and scissors and I will move the world.  CCFestoon" },
	_Adler32Test{ 0x7cc6102b, "If the enemy is within range, then so are you." },
	_Adler32Test{ 0x700318e7, "It's well we cannot hear the screams/That we create in others' dreams." },
	_Adler32Test{ 0x1e601747, "You remind me of a TV show, but that's all right: I watch it anyway." },
	_Adler32Test{ 0xb55b0b09, "C is as portable as Stonehedge!!" },
	_Adler32Test{ 0x39111dd0, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley" },
	_Adler32Test{ 0x91dd304f, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction.  Lewis-Randall Rule" },
	_Adler32Test{ 0x2e5d1316, "How can you write a big system without C++?  -Paul Glick" },
	_Adler32Test{ 0xd0201df6, "'Invariant assertions' is the most elegant programming technique!  -Tom Szymanski" },
}

func TestGolden(t *testing.T) {
	for i := 0; i < len(golden); i++ {
		g := golden[i];
		c := New();
		io.WriteString(c, g.in);
		s := c.Sum32();
		if s != g.out {
			t.Errorf("adler32(%s) = 0x%x want 0x%x", g.in, s, g.out);
			t.FailNow();
		}
	}
}