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// 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.
// CAUTION: If this file is not vector_test.go, it was generated
// automatically from vector_test.go - DO NOT EDIT in that case!
package vector
import "testing"
func TestZeroLen(t *testing.T) {
a := new(Vector)
if a.Len() != 0 {
t.Errorf("%T: B1) expected 0, got %d", a, a.Len())
}
if len(*a) != 0 {
t.Errorf("%T: B2) expected 0, got %d", a, len(*a))
}
var b Vector
if b.Len() != 0 {
t.Errorf("%T: B3) expected 0, got %d", b, b.Len())
}
if len(b) != 0 {
t.Errorf("%T: B4) expected 0, got %d", b, len(b))
}
}
func TestResize(t *testing.T) {
var a Vector
checkSize(t, &a, 0, 0)
checkSize(t, a.Resize(0, 5), 0, 5)
checkSize(t, a.Resize(1, 0), 1, 5)
checkSize(t, a.Resize(10, 0), 10, 10)
checkSize(t, a.Resize(5, 0), 5, 10)
checkSize(t, a.Resize(3, 8), 3, 10)
checkSize(t, a.Resize(0, 100), 0, 100)
checkSize(t, a.Resize(11, 100), 11, 100)
}
func TestResize2(t *testing.T) {
var a Vector
checkSize(t, &a, 0, 0)
a.Push(int2Value(1))
a.Push(int2Value(2))
a.Push(int2Value(3))
a.Push(int2Value(4))
checkSize(t, &a, 4, 4)
checkSize(t, a.Resize(10, 0), 10, 10)
for i := 4; i < a.Len(); i++ {
if a.At(i) != zero {
t.Errorf("%T: expected a.At(%d) == %v; found %v!", a, i, zero, a.At(i))
}
}
for i := 4; i < len(a); i++ {
if a[i] != zero {
t.Errorf("%T: expected a[%d] == %v; found %v", a, i, zero, a[i])
}
}
}
func checkZero(t *testing.T, a *Vector, i int) {
for j := 0; j < i; j++ {
if a.At(j) == zero {
t.Errorf("%T: 1 expected a.At(%d) == %d; found %v", a, j, j, a.At(j))
}
if (*a)[j] == zero {
t.Errorf("%T: 2 expected (*a)[%d] == %d; found %v", a, j, j, (*a)[j])
}
}
for ; i < a.Len(); i++ {
if a.At(i) != zero {
t.Errorf("%T: 3 expected a.At(%d) == %v; found %v", a, i, zero, a.At(i))
}
if (*a)[i] != zero {
t.Errorf("%T: 4 expected (*a)[%d] == %v; found %v", a, i, zero, (*a)[i])
}
}
}
func TestTrailingElements(t *testing.T) {
var a Vector
for i := 0; i < 10; i++ {
a.Push(int2Value(i + 1))
}
checkZero(t, &a, 10)
checkSize(t, &a, 10, 16)
checkSize(t, a.Resize(5, 0), 5, 16)
checkSize(t, a.Resize(10, 0), 10, 16)
checkZero(t, &a, 5)
}
func TestAccess(t *testing.T) {
const n = 100
var a Vector
a.Resize(n, 0)
for i := 0; i < n; i++ {
a.Set(i, int2Value(val(i)))
}
for i := 0; i < n; i++ {
if elem2Value(a.At(i)) != int2Value(val(i)) {
t.Error(i)
}
}
var b Vector
b.Resize(n, 0)
for i := 0; i < n; i++ {
b[i] = int2Value(val(i))
}
for i := 0; i < n; i++ {
if elem2Value(b[i]) != int2Value(val(i)) {
t.Error(i)
}
}
}
func TestInsertDeleteClear(t *testing.T) {
const n = 100
var a Vector
for i := 0; i < n; i++ {
if a.Len() != i {
t.Errorf("%T: A) wrong Len() %d (expected %d)", a, a.Len(), i)
}
if len(a) != i {
t.Errorf("%T: A) wrong len() %d (expected %d)", a, len(a), i)
}
a.Insert(0, int2Value(val(i)))
if elem2Value(a.Last()) != int2Value(val(0)) {
t.Errorf("%T: B", a)
}
}
for i := n - 1; i >= 0; i-- {
if elem2Value(a.Last()) != int2Value(val(0)) {
t.Errorf("%T: C", a)
}
if elem2Value(a.At(0)) != int2Value(val(i)) {
t.Errorf("%T: D", a)
}
if elem2Value(a[0]) != int2Value(val(i)) {
t.Errorf("%T: D2", a)
}
a.Delete(0)
if a.Len() != i {
t.Errorf("%T: E) wrong Len() %d (expected %d)", a, a.Len(), i)
}
if len(a) != i {
t.Errorf("%T: E) wrong len() %d (expected %d)", a, len(a), i)
}
}
if a.Len() != 0 {
t.Errorf("%T: F) wrong Len() %d (expected 0)", a, a.Len())
}
if len(a) != 0 {
t.Errorf("%T: F) wrong len() %d (expected 0)", a, len(a))
}
for i := 0; i < n; i++ {
a.Push(int2Value(val(i)))
if a.Len() != i+1 {
t.Errorf("%T: G) wrong Len() %d (expected %d)", a, a.Len(), i+1)
}
if len(a) != i+1 {
t.Errorf("%T: G) wrong len() %d (expected %d)", a, len(a), i+1)
}
if elem2Value(a.Last()) != int2Value(val(i)) {
t.Errorf("%T: H", a)
}
}
a.Resize(0, 0)
if a.Len() != 0 {
t.Errorf("%T: I wrong Len() %d (expected 0)", a, a.Len())
}
if len(a) != 0 {
t.Errorf("%T: I wrong len() %d (expected 0)", a, len(a))
}
const m = 5
for j := 0; j < m; j++ {
a.Push(int2Value(j))
for i := 0; i < n; i++ {
x := val(i)
a.Push(int2Value(x))
if elem2Value(a.Pop()) != int2Value(x) {
t.Errorf("%T: J", a)
}
if a.Len() != j+1 {
t.Errorf("%T: K) wrong Len() %d (expected %d)", a, a.Len(), j+1)
}
if len(a) != j+1 {
t.Errorf("%T: K) wrong len() %d (expected %d)", a, len(a), j+1)
}
}
}
if a.Len() != m {
t.Errorf("%T: L) wrong Len() %d (expected %d)", a, a.Len(), m)
}
if len(a) != m {
t.Errorf("%T: L) wrong len() %d (expected %d)", a, len(a), m)
}
}
func verify_slice(t *testing.T, x *Vector, elt, i, j int) {
for k := i; k < j; k++ {
if elem2Value(x.At(k)) != int2Value(elt) {
t.Errorf("%T: M) wrong [%d] element %v (expected %v)", x, k, elem2Value(x.At(k)), int2Value(elt))
}
}
s := x.Slice(i, j)
for k, n := 0, j-i; k < n; k++ {
if elem2Value(s.At(k)) != int2Value(elt) {
t.Errorf("%T: N) wrong [%d] element %v (expected %v)", x, k, elem2Value(x.At(k)), int2Value(elt))
}
}
}
func verify_pattern(t *testing.T, x *Vector, a, b, c int) {
n := a + b + c
if x.Len() != n {
t.Errorf("%T: O) wrong Len() %d (expected %d)", x, x.Len(), n)
}
if len(*x) != n {
t.Errorf("%T: O) wrong len() %d (expected %d)", x, len(*x), n)
}
verify_slice(t, x, 0, 0, a)
verify_slice(t, x, 1, a, a+b)
verify_slice(t, x, 0, a+b, n)
}
func make_vector(elt, len int) *Vector {
x := new(Vector).Resize(len, 0)
for i := 0; i < len; i++ {
x.Set(i, int2Value(elt))
}
return x
}
func TestInsertVector(t *testing.T) {
// 1
a := make_vector(0, 0)
b := make_vector(1, 10)
a.InsertVector(0, b)
verify_pattern(t, a, 0, 10, 0)
// 2
a = make_vector(0, 10)
b = make_vector(1, 0)
a.InsertVector(5, b)
verify_pattern(t, a, 5, 0, 5)
// 3
a = make_vector(0, 10)
b = make_vector(1, 3)
a.InsertVector(3, b)
verify_pattern(t, a, 3, 3, 7)
// 4
a = make_vector(0, 10)
b = make_vector(1, 1000)
a.InsertVector(8, b)
verify_pattern(t, a, 8, 1000, 2)
}
func TestDo(t *testing.T) {
const n = 25
const salt = 17
a := new(Vector).Resize(n, 0)
for i := 0; i < n; i++ {
a.Set(i, int2Value(salt*i))
}
count := 0
a.Do(func(e interface{}) {
i := intf2Value(e)
if i != int2Value(count*salt) {
t.Error(tname(a), "value at", count, "should be", count*salt, "not", i)
}
count++
})
if count != n {
t.Error(tname(a), "should visit", n, "values; did visit", count)
}
b := new(Vector).Resize(n, 0)
for i := 0; i < n; i++ {
(*b)[i] = int2Value(salt * i)
}
count = 0
b.Do(func(e interface{}) {
i := intf2Value(e)
if i != int2Value(count*salt) {
t.Error(tname(b), "b) value at", count, "should be", count*salt, "not", i)
}
count++
})
if count != n {
t.Error(tname(b), "b) should visit", n, "values; did visit", count)
}
var c Vector
c.Resize(n, 0)
for i := 0; i < n; i++ {
c[i] = int2Value(salt * i)
}
count = 0
c.Do(func(e interface{}) {
i := intf2Value(e)
if i != int2Value(count*salt) {
t.Error(tname(c), "c) value at", count, "should be", count*salt, "not", i)
}
count++
})
if count != n {
t.Error(tname(c), "c) should visit", n, "values; did visit", count)
}
}
func TestVectorCopy(t *testing.T) {
// verify Copy() returns a copy, not simply a slice of the original vector
const Len = 10
var src Vector
for i := 0; i < Len; i++ {
src.Push(int2Value(i * i))
}
dest := src.Copy()
for i := 0; i < Len; i++ {
src[i] = int2Value(-1)
v := elem2Value(dest[i])
if v != int2Value(i*i) {
t.Error(tname(src), "expected", i*i, "got", v)
}
}
}