feat: initial release

Assisted-by: GLM 5.3 Flash

optim/helpers_test.go

@@ -0,0 +1,24 @@
+// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
+// SPDX-License-Identifier: MIT
+
+package optim
+
+import (
+	"testing"
+
+	"sourcedock.dev/petrbalvin/tensor/internal/core"
+)
+
+// mustFloats builds a float array, failing the test on a bad shape.
+// Without an explicit shape it defaults to a vector of len(vals).
+func mustFloats(t *testing.T, vals []float64, shape ...int) *core.Array {
+	t.Helper()
+	if len(shape) == 0 {
+		shape = []int{len(vals)}
+	}
+	a, err := core.FromFloats(vals, shape...)
+	if err != nil {
+		t.Fatalf("FromFloats(%v, %v): %v", vals, shape, err)
+	}
+	return a
+}