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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /test/typeparam/sliceimp.dir/main.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-upstream.tar.xz golang-1.20-upstream.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/typeparam/sliceimp.dir/main.go')
-rw-r--r-- | test/typeparam/sliceimp.dir/main.go | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/test/typeparam/sliceimp.dir/main.go b/test/typeparam/sliceimp.dir/main.go new file mode 100644 index 0000000..ec13188 --- /dev/null +++ b/test/typeparam/sliceimp.dir/main.go @@ -0,0 +1,179 @@ +// Copyright 2021 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 main + +import ( + "./a" + "fmt" + "math" + "strings" +) + +type Integer interface { + ~int | ~int8 | ~int16 | ~int32 | ~int64 | + ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr +} + +func TestEqual() { + s1 := []int{1, 2, 3} + if !a.Equal(s1, s1) { + panic(fmt.Sprintf("a.Equal(%v, %v) = false, want true", s1, s1)) + } + s2 := []int{1, 2, 3} + if !a.Equal(s1, s2) { + panic(fmt.Sprintf("a.Equal(%v, %v) = false, want true", s1, s2)) + } + s2 = append(s2, 4) + if a.Equal(s1, s2) { + panic(fmt.Sprintf("a.Equal(%v, %v) = true, want false", s1, s2)) + } + + s3 := []float64{1, 2, math.NaN()} + if !a.Equal(s3, s3) { + panic(fmt.Sprintf("a.Equal(%v, %v) = false, want true", s3, s3)) + } + + if a.Equal(s1, nil) { + panic(fmt.Sprintf("a.Equal(%v, nil) = true, want false", s1)) + } + if a.Equal(nil, s1) { + panic(fmt.Sprintf("a.Equal(nil, %v) = true, want false", s1)) + } + if !a.Equal(s1[:0], nil) { + panic(fmt.Sprintf("a.Equal(%v, nil = false, want true", s1[:0])) + } +} + +func offByOne[Elem Integer](a, b Elem) bool { + return a == b+1 || a == b-1 +} + +func TestEqualFn() { + s1 := []int{1, 2, 3} + s2 := []int{2, 3, 4} + if a.EqualFn(s1, s1, offByOne[int]) { + panic(fmt.Sprintf("a.EqualFn(%v, %v, offByOne) = true, want false", s1, s1)) + } + if !a.EqualFn(s1, s2, offByOne[int]) { + panic(fmt.Sprintf("a.EqualFn(%v, %v, offByOne) = false, want true", s1, s2)) + } + + if !a.EqualFn(s1[:0], nil, offByOne[int]) { + panic(fmt.Sprintf("a.EqualFn(%v, nil, offByOne) = false, want true", s1[:0])) + } + + s3 := []string{"a", "b", "c"} + s4 := []string{"A", "B", "C"} + if !a.EqualFn(s3, s4, strings.EqualFold) { + panic(fmt.Sprintf("a.EqualFn(%v, %v, strings.EqualFold) = false, want true", s3, s4)) + } +} + +func TestMap() { + s1 := []int{1, 2, 3} + s2 := a.Map(s1, func(i int) float64 { return float64(i) * 2.5 }) + if want := []float64{2.5, 5, 7.5}; !a.Equal(s2, want) { + panic(fmt.Sprintf("a.Map(%v, ...) = %v, want %v", s1, s2, want)) + } + + s3 := []string{"Hello", "World"} + s4 := a.Map(s3, strings.ToLower) + if want := []string{"hello", "world"}; !a.Equal(s4, want) { + panic(fmt.Sprintf("a.Map(%v, strings.ToLower) = %v, want %v", s3, s4, want)) + } + + s5 := a.Map(nil, func(i int) int { return i }) + if len(s5) != 0 { + panic(fmt.Sprintf("a.Map(nil, identity) = %v, want empty slice", s5)) + } +} + +func TestReduce() { + s1 := []int{1, 2, 3} + r := a.Reduce(s1, 0, func(f float64, i int) float64 { return float64(i)*2.5 + f }) + if want := 15.0; r != want { + panic(fmt.Sprintf("a.Reduce(%v, 0, ...) = %v, want %v", s1, r, want)) + } + + if got := a.Reduce(nil, 0, func(i, j int) int { return i + j }); got != 0 { + panic(fmt.Sprintf("a.Reduce(nil, 0, add) = %v, want 0", got)) + } +} + +func TestFilter() { + s1 := []int{1, 2, 3} + s2 := a.Filter(s1, func(i int) bool { return i%2 == 0 }) + if want := []int{2}; !a.Equal(s2, want) { + panic(fmt.Sprintf("a.Filter(%v, even) = %v, want %v", s1, s2, want)) + } + + if s3 := a.Filter(s1[:0], func(i int) bool { return true }); len(s3) > 0 { + panic(fmt.Sprintf("a.Filter(%v, identity) = %v, want empty slice", s1[:0], s3)) + } +} + +func TestMax() { + s1 := []int{1, 2, 3, -5} + if got, want := a.SliceMax(s1), 3; got != want { + panic(fmt.Sprintf("a.Max(%v) = %d, want %d", s1, got, want)) + } + + s2 := []string{"aaa", "a", "aa", "aaaa"} + if got, want := a.SliceMax(s2), "aaaa"; got != want { + panic(fmt.Sprintf("a.Max(%v) = %q, want %q", s2, got, want)) + } + + if got, want := a.SliceMax(s2[:0]), ""; got != want { + panic(fmt.Sprintf("a.Max(%v) = %q, want %q", s2[:0], got, want)) + } +} + +func TestMin() { + s1 := []int{1, 2, 3, -5} + if got, want := a.SliceMin(s1), -5; got != want { + panic(fmt.Sprintf("a.Min(%v) = %d, want %d", s1, got, want)) + } + + s2 := []string{"aaa", "a", "aa", "aaaa"} + if got, want := a.SliceMin(s2), "a"; got != want { + panic(fmt.Sprintf("a.Min(%v) = %q, want %q", s2, got, want)) + } + + if got, want := a.SliceMin(s2[:0]), ""; got != want { + panic(fmt.Sprintf("a.Min(%v) = %q, want %q", s2[:0], got, want)) + } +} + +func TestAppend() { + s := []int{1, 2, 3} + s = a.Append(s, 4, 5, 6) + want := []int{1, 2, 3, 4, 5, 6} + if !a.Equal(s, want) { + panic(fmt.Sprintf("after a.Append got %v, want %v", s, want)) + } +} + +func TestCopy() { + s1 := []int{1, 2, 3} + s2 := []int{4, 5} + if got := a.Copy(s1, s2); got != 2 { + panic(fmt.Sprintf("a.Copy returned %d, want 2", got)) + } + want := []int{4, 5, 3} + if !a.Equal(s1, want) { + panic(fmt.Sprintf("after a.Copy got %v, want %v", s1, want)) + } +} +func main() { + TestEqual() + TestEqualFn() + TestMap() + TestReduce() + TestFilter() + TestMax() + TestMin() + TestAppend() + TestCopy() +} |