feat: initial release

Assisted-by: GLM 5.3 Flash

linalg/helpers_test.go

@@ -0,0 +1,64 @@
+// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
+// SPDX-License-Identifier: MIT
+
+package linalg
+
+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
+}
+
+// mustFromFloats builds a float array, failing the test on a bad shape.
+func mustFromFloats(t *testing.T, vals []float64, shape ...int) *core.Array {
+	t.Helper()
+	a, err := core.FromFloats(vals, shape...)
+	if err != nil {
+		t.Fatalf("FromFloats(%v, %v): %v", vals, shape, err)
+	}
+	return a
+}
+
+// mustFromFloat32s builds a float32 array, failing the test on a bad shape.
+func mustFromFloat32s(t *testing.T, vals []float32, shape ...int) *core.Array {
+	t.Helper()
+	a, err := core.FromFloat32s(vals, shape...)
+	if err != nil {
+		t.Fatalf("FromFloat32s(%v, %v): %v", vals, shape, err)
+	}
+	return a
+}
+
+// mustFromInts builds an int array, failing the test on a bad shape.
+func mustFromInts(t *testing.T, vals []int64, shape ...int) *core.Array {
+	t.Helper()
+	a, err := core.FromInts(vals, shape...)
+	if err != nil {
+		t.Fatalf("FromInts(%v, %v): %v", vals, shape, err)
+	}
+	return a
+}
+
+// mustFromComplexes builds a complex array, failing the test on a bad shape.
+func mustFromComplexes(t *testing.T, vals []complex128, shape ...int) *core.Array {
+	t.Helper()
+	a, err := core.FromComplexes(vals, shape...)
+	if err != nil {
+		t.Fatalf("FromComplexes(%v, %v): %v", vals, shape, err)
+	}
+	return a
+}