flannel/vendor/github.com/docker/distribution/context/version_test.go

package context

import "testing"

func TestVersionContext(t *testing.T) {
	ctx := Background()

	if GetVersion(ctx) != "" {
		t.Fatalf("context should not yet have a version")
	}

	expected := "2.1-whatever"
	ctx = WithVersion(ctx, expected)
	version := GetVersion(ctx)

	if version != expected {
		t.Fatalf("version was not set: %q != %q", version, expected)
	}
}