Full Circle Test Code

circle_test.go

package circle

import (
	"testing"
)

func TestDiameter(t *testing.T) {
	circle := Circle{Radius: 7}

	expected := 14.0
	actual := circle.Diameter()

	if actual != expected {
		t.Errorf("TestDiameter failed, expected: '%.2f', got: '%.2f'", expected, actual)
	}
}

func TestArea(t *testing.T) {
	circle := Circle{Radius: 10}

	expected := 314.1592653589793
	actual := circle.Area()

	if actual != expected {
		t.Errorf("TestArea failed, expected: '%.2f', got: '%.2f'", expected, actual)
	}
}

func TestCircumference(t *testing.T) {
	circle := Circle{Radius: 10}

	expected := 62.83185307179586
	actual := circle.Circumference()

	if actual != expected {
		t.Errorf("TestCircumference failed, expected: '%.2f', got: '%.2f'", expected, actual)
	}
}