/
allocations_test.go
260 lines (236 loc) · 6.5 KB
/
allocations_test.go
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package expreduce
import (
"fmt"
"github.com/stretchr/testify/assert"
"testing"
)
func newPf(startI int, endI int) parsedForm {
return parsedForm{
startI, endI,
nil, nil,
false, false, false, nil, false, nil,
}
}
// sequenceAssignments[len_Integer, forms_List, orderless_?BooleanQ] :=
// ReplaceList[
// fn @@ Range[0, len - 1] /.
// fn -> If[orderless, ExpreduceOrderlessFn, foo],
// fn @@ Table[
// Pattern[Alphabet[][[i]] // ToExpression // Evaluate,
// Repeated[_, forms[[i]]]], {i, Length[forms]}] ->
// Table[{Alphabet[][[i]] // ToExpression}, {i, Length[forms]}] /.
// fn -> If[orderless, ExpreduceOrderlessFn, foo]]
func TestAllocations(t *testing.T) {
fmt.Println("Testing allocations")
forms := []parsedForm{
newPf(1, 2),
newPf(0, 1),
newPf(0, 99999),
}
ai := NewAllocIter(4, forms)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{1, 0, 3}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{1, 1, 2}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{2, 0, 2}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{2, 1, 1}, ai.alloc)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(1, 1),
newPf(0, 99999),
}
ai = NewAllocIter(4, forms)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{1, 3}, ai.alloc)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(1, 1),
newPf(1, 1),
newPf(0, 99999),
}
ai = NewAllocIter(4, forms)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{1, 1, 2}, ai.alloc)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(0, 1),
newPf(0, 1),
newPf(0, 99999),
}
forms[0].isOptional = true
forms[1].isOptional = true
ai = NewAllocIter(3, forms)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{1, 1, 1}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{1, 0, 2}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{0, 1, 2}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{0, 0, 3}, ai.alloc)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(0, 99999),
newPf(1, 1),
newPf(0, 99999),
}
ai = NewAllocIter(4, forms)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{0, 1, 3}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{1, 1, 2}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{2, 1, 1}, ai.alloc)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{3, 1, 0}, ai.alloc)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(0, 99999),
}
ai = NewAllocIter(0, forms)
assert.Equal(t, true, ai.next())
assert.Equal(t, []int{0}, ai.alloc)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(1, 99999),
}
ai = NewAllocIter(0, forms)
assert.Equal(t, false, ai.next())
// Impossible configuration. Should return false immediately.
forms = []parsedForm{
newPf(5, 5),
}
ai = NewAllocIter(4, forms)
assert.Equal(t, false, ai.next())
// Impossible configuration. Should return false immediately.
forms = []parsedForm{
newPf(1, 1),
}
ai = NewAllocIter(4, forms)
assert.Equal(t, false, ai.next())
// Impossible configuration. Should return false immediately.
forms = []parsedForm{
newPf(5, 0),
}
ai = NewAllocIter(4, forms)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(0, 999999),
newPf(1, 1),
newPf(0, 999999),
}
ai = NewAllocIter(800000, forms)
num := 0
for num = 0; ai.next(); num++ {
}
assert.Equal(t, 800000, num)
// should be 1/2 n (1+n)/.n->(ncomps-1)
forms = []parsedForm{
newPf(0, 999999),
newPf(1, 1),
newPf(0, 999999),
newPf(1, 1),
newPf(0, 999999),
}
ai = NewAllocIter(1400, forms)
for num = 0; ai.next(); num++ {
}
assert.Equal(t, 979300, num)
}
func allMatch(nComps int, nForms int) [][]bool {
formMatches := make([][]bool, nForms)
for i := 0; i < nForms; i++ {
formMatches[i] = make([]bool, nComps)
for j := 0; j < nComps; j++ {
formMatches[i][j] = true
}
}
return formMatches
}
func TestAssignments(t *testing.T) {
fmt.Println("Testing assignments")
forms := []parsedForm{
newPf(0, 1),
newPf(1, 1),
newPf(0, 99999),
}
nComps := 3
ai := NewAssnIter(nComps, forms, allMatch(nComps, len(forms)), true)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{}, {0}, {1, 2}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{}, {1}, {0, 2}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{}, {2}, {0, 1}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{0}, {1}, {2}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{0}, {2}, {1}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{1}, {0}, {2}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{1}, {2}, {0}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{2}, {0}, {1}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{2}, {1}, {0}}, ai.assns)
assert.Equal(t, false, ai.next())
ai = NewAssnIter(nComps, forms, allMatch(nComps, len(forms)), false)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{}, {0}, {1, 2}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{0}, {1}, {2}}, ai.assns)
assert.Equal(t, false, ai.next())
// Test pinning a form to particular components.
forms = []parsedForm{
newPf(1, 1),
newPf(1, 1),
newPf(1, 1),
}
nComps = 3
formMatches := [][]bool{
{true, true, true},
{false, true, false},
{true, true, true},
}
ai = NewAssnIter(nComps, forms, formMatches, true)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{0}, {1}, {2}}, ai.assns)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{2}, {1}, {0}}, ai.assns)
assert.Equal(t, false, ai.next())
forms = []parsedForm{
newPf(1, 99999),
newPf(1, 99999),
}
nComps = 3
formMatches = [][]bool{
{true, true, true},
{true, false, false},
}
ai = NewAssnIter(nComps, forms, formMatches, true)
assert.Equal(t, true, ai.next())
assert.Equal(t, [][]int{{1, 2}, {0}}, ai.assns)
assert.Equal(t, false, ai.next())
// should be 1/2 n (1+n)/.n->(ncomps-1)
forms = []parsedForm{
newPf(0, 999999),
newPf(1, 1),
newPf(0, 999999),
newPf(1, 1),
newPf(0, 999999),
}
nComps = 1400
ai = NewAssnIter(nComps, forms, allMatch(nComps, len(forms)), false)
num := 0
for num = 0; ai.next(); num++ {
}
assert.Equal(t, 979300, num)
nComps = 8
ai = NewAssnIter(nComps, forms, allMatch(nComps, len(forms)), true)
for num = 0; ai.next(); num++ {
}
assert.Equal(t, 40824, num)
}