package docker //nolint:testpackage // tests unexported cpuLimitToNanoCPUs

import (
	"testing"
)

func TestCpuLimitToNanoCPUs(t *testing.T) {
	t.Parallel()

	tests := []struct {
		name     string
		cpuLimit float64
		expected int64
	}{
		{"one core", 1.0, 1_000_000_000},
		{"half core", 0.5, 500_000_000},
		{"two cores", 2.0, 2_000_000_000},
		{"quarter core", 0.25, 250_000_000},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()

			got := cpuLimitToNanoCPUs(tt.cpuLimit)
			if got != tt.expected {
				t.Errorf("cpuLimitToNanoCPUs(%v) = %d, want %d", tt.cpuLimit, got, tt.expected)
			}
		})
	}
}