You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: area_test.go
    path of file: ./repos/gonum/unit
    
    the code of the file until where you have to start completion: // Code generated by "go generate gonum.org/v1/gonum/unit; DO NOT EDIT.

// Copyright Â©2019 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package unit

import (
	"fmt"
	"testing"
)

func TestArea(t *testing.T) {
	t.Parallel()
	for _, value := range []float64{-1, 0, 1} {
		var got Area
		err := got.From(Area(value).Unit())
		if err != nil {
			t.Errorf("unexpected error for %T conversion: %v", got, err)
		}
		if got != Area(val
    
func TestArea(t *testing.T) {
	t.Parallel()
	for _, value := range []float64{-1, 0, 1} {
		var got Area
		err := got.From(Area(value).Unit())
		if err != nil {
			t.Errorf("unexpected error for %T conversion: %v", got, err)
		}
		if got != Area(value) {
			t.Errorf("unexpected result from round trip of %T(%v): got: %v want: %v", got, value, got, value)
		}
		if got != got.Area() {
			t.Errorf("unexpected result from self interface method call: got: %#v want: %#v", got, value)
		}
		err = got.From(ether(1))
		if err == nil {
			t.Errorf("expected error for ether to %T conversion", got)
		}
	}
}