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authorDavid Symonds <dsymonds@golang.org>2009-04-20 18:13:14 -0700
committerDavid Symonds <dsymonds@golang.org>2009-04-20 18:13:14 -0700
commita0761e334aba87375c842ace499102c4622ecee9 (patch)
tree17208a76059f814a5b3a2b6db9a5a0836af13257 /src/lib/container/iterable_test.go
parent3d8743c037811e3957aacd05e7573938b8fa0297 (diff)
downloadgolang-a0761e334aba87375c842ace499102c4622ecee9.tar.gz
Move iterable package to usr/dsymonds/.
R=r APPROVED=r DELTA=598 (330 added, 266 deleted, 2 changed) OCL=27627 CL=27649
Diffstat (limited to 'src/lib/container/iterable_test.go')
-rw-r--r--src/lib/container/iterable_test.go129
1 files changed, 0 insertions, 129 deletions
diff --git a/src/lib/container/iterable_test.go b/src/lib/container/iterable_test.go
deleted file mode 100644
index ceb1de6e4..000000000
--- a/src/lib/container/iterable_test.go
+++ /dev/null
@@ -1,129 +0,0 @@
-// 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 iterable
-
-import (
- "container/iterable";
- "testing";
-)
-
-type IntArray []int;
-
-func (arr IntArray) Iter() <-chan interface {} {
- ch := make(chan interface {});
- go func() {
- for i, x := range arr {
- ch <- x
- }
- close(ch)
- }();
- return ch
-}
-
-var oneToFive IntArray = []int{ 1, 2, 3, 4, 5 };
-
-func isNegative(n interface {}) bool {
- return n.(int) < 0
-}
-func isPositive(n interface {}) bool {
- return n.(int) > 0
-}
-func isAbove3(n interface {}) bool {
- return n.(int) > 3
-}
-func isEven(n interface {}) bool {
- return n.(int) % 2 == 0
-}
-func doubler(n interface {}) interface {} {
- return n.(int) * 2
-}
-func addOne(n interface {}) interface {} {
- return n.(int) + 1
-}
-func adder(acc interface {}, n interface {}) interface {} {
- return acc.(int) + n.(int)
-}
-
-// A stream of the natural numbers: 0, 1, 2, 3, ...
-type integerStream struct {}
-func (i integerStream) Iter() <-chan interface {} {
- ch := make(chan interface {});
- go func() {
- for i := 0; ; i++ {
- ch <- i
- }
- }();
- return ch
-}
-
-func TestAll(t *testing.T) {
- if !All(oneToFive, isPositive) {
- t.Error("All(oneToFive, isPositive) == false")
- }
- if All(oneToFive, isAbove3) {
- t.Error("All(oneToFive, isAbove3) == true")
- }
-}
-
-func TestAny(t *testing.T) {
- if Any(oneToFive, isNegative) {
- t.Error("Any(oneToFive, isNegative) == true")
- }
- if !Any(oneToFive, isEven) {
- t.Error("Any(oneToFive, isEven) == false")
- }
-}
-
-func assertArraysAreEqual(t *testing.T, res []interface {}, expected []int) {
- if len(res) != len(expected) {
- t.Errorf("len(res) = %v, want %v", len(res), len(expected));
- goto missing
- }
- for i := range res {
- if v := res[i].(int); v != expected[i] {
- t.Errorf("res[%v] = %v, want %v", i, v, expected[i]);
- goto missing
- }
- }
- return;
-missing:
- t.Errorf("res = %v\nwant %v", res, expected);
-}
-
-func TestFilter(t *testing.T) {
- ints := integerStream{};
- moreInts := Filter(ints, isAbove3).Iter();
- res := make([]interface {}, 3);
- for i := 0; i < 3; i++ {
- res[i] = <-moreInts;
- }
- assertArraysAreEqual(t, res, []int{ 4, 5, 6 })
-}
-
-func TestFind(t *testing.T) {
- ints := integerStream{};
- first := Find(ints, isAbove3);
- if first.(int) != 4 {
- t.Errorf("Find(ints, isAbove3) = %v, want 4", first)
- }
-}
-
-func TestInject(t *testing.T) {
- res := Inject(oneToFive, 0, adder);
- if res.(int) != 15 {
- t.Errorf("Inject(oneToFive, 0, adder) = %v, want 15", res)
- }
-}
-
-func TestMap(t *testing.T) {
- res := Data(Map(Map(oneToFive, doubler), addOne));
- assertArraysAreEqual(t, res, []int{ 3, 5, 7, 9, 11 })
-}
-
-func TestPartition(t *testing.T) {
- ti, fi := Partition(oneToFive, isEven);
- assertArraysAreEqual(t, Data(ti), []int{ 2, 4 });
- assertArraysAreEqual(t, Data(fi), []int{ 1, 3, 5 })
-}