27 lines
571 B
Go
27 lines
571 B
Go
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// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
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// SPDX-License-Identifier: MIT
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package signal
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import (
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"testing"
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"sourcedock.dev/petrbalvin/tensor/internal/core"
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)
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// TestFloat32FFT checks that the transform computes in float64 from
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// float32 inputs.
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func TestFloat32FFT(t *testing.T) {
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a, err := core.FromFloat32s([]float32{1, 1, 1, 1}, 4)
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if err != nil {
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t.Fatal(err)
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}
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spec, err := FFT(a)
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if err != nil {
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t.Fatalf("FFT float32: %v", err)
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}
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if v := spec.ComplexAt(0); v != 4 {
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t.Fatalf("FFT DC: %v", v)
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}
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}
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