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path: root/satp/sequence-window_test.go
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//
// Copyright (c) 2017 anygone contributors (see AUTHORS file)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
//   list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// * Neither the name of anygone nor the names of its
//   contributors may be used to endorse or promote products derived from
//   this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//

package satp

import (
	"testing"
)

func TestSequenceWindowNew(t *testing.T) {
	testvectors := []struct {
		size    int
		bodyLen int
		valid   bool
	}{
		{-1, 0, false},
		{0, 0, true},
		{1, 1, true},
		{10, 1, true},
		{32, 1, true},
		{33, 2, true},
		{63, 2, true},
		{64, 2, true},
		{65, 3, true},
		{100, 4, true},
	}

	for _, vector := range testvectors {
		w, err := NewSequenceWindow(vector.size)
		if vector.valid {
			if err != nil {
				t.Fatal("unexpected error:", err)
			}
			if w.Size() != vector.size {
				t.Fatalf("sequence-window has wrong size, is: %d, should be %d", w.Size(), vector.size)
			}
			if w.Top() != 0 {
				t.Fatalf("sequence-window(%d) top value not 0: 0x%08X", vector.size, w.Top())
			}
			if w.head != 0 {
				t.Fatalf("sequence-window(%d) head not 0: 0x%16X", vector.size, w.head)
			}
			bodyLen := len(w.body)
			if bodyLen != vector.bodyLen {
				t.Fatalf("sequence-window(%d) body length has invalid length, is: %d, should be %d", vector.size, bodyLen, vector.bodyLen)
			}
			isEmpty := true
			for _, v := range w.body {
				if v != 0 {
					isEmpty = false
				}
			}
			if !isEmpty {
				t.Fatalf("sequence-window(%d) body not empty, is: %v", vector.size, w.body)
			}
		} else {
			if err == nil {
				t.Fatalf("creating sequence-window(%d) should give an error", vector.size)
			}
		}
	}

}