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package msp
import (
"testing"
)
func TestRecovery(t *testing.T) {
// Generate the matrix.
height, width := 10, 10
M := Matrix(make([]Row, height))
for i := 0; i < height; i++ {
M[i] = NewRow(width)
for j := 0; j < width; j++ {
M[i][j][0] = byte(i + 1)
M[i][j] = M[i][j].Exp(j)
}
}
// Find the recovery vector.
r, ok := M.Recovery()
if !ok {
t.Fatalf("Failed to find the recovery vector!")
}
// Find the output vector.
out := NewRow(width)
for i := 0; i < height; i++ {
out.AddM(M[i].Mul(r[i]))
}
// Check that it is the target vector.
if !out[0].IsOne() {
t.Fatalf("Output is not the target vector!")
}
for i := 1; i < width; i++ {
if !out[i].IsZero() {
t.Fatalf("Output is not the target vector!")
}
}
}
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