Help needed: vendor files for Prometheus support

These are the vendor files needed for Prometheus support.
I have not been able to figure out how to do this properly with gopkg.

vendor/github.com/prometheus/procfs/stat_test.go

@@ -0,0 +1,61 @@
+package procfs
+
+import "testing"
+
+func TestStat(t *testing.T) {
+	s, err := FS("fixtures").NewStat()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// cpu
+	if want, have := float64(301854)/userHZ, s.CPUTotal.User; want != have {
+		t.Errorf("want cpu/user %v, have %v", want, have)
+	}
+	if want, have := float64(31)/userHZ, s.CPU[7].SoftIRQ; want != have {
+		t.Errorf("want cpu7/softirq %v, have %v", want, have)
+	}
+
+	// intr
+	if want, have := uint64(8885917), s.IRQTotal; want != have {
+		t.Errorf("want irq/total %d, have %d", want, have)
+	}
+	if want, have := uint64(1), s.IRQ[8]; want != have {
+		t.Errorf("want irq8 %d, have %d", want, have)
+	}
+
+	// ctxt
+	if want, have := uint64(38014093), s.ContextSwitches; want != have {
+		t.Errorf("want context switches (ctxt) %d, have %d", want, have)
+	}
+
+	// btime
+	if want, have := uint64(1418183276), s.BootTime; want != have {
+		t.Errorf("want boot time (btime) %d, have %d", want, have)
+	}
+
+	// processes
+	if want, have := uint64(26442), s.ProcessCreated; want != have {
+		t.Errorf("want process created (processes) %d, have %d", want, have)
+	}
+
+	// procs_running
+	if want, have := uint64(2), s.ProcessesRunning; want != have {
+		t.Errorf("want processes running (procs_running) %d, have %d", want, have)
+	}
+
+	// procs_blocked
+	if want, have := uint64(1), s.ProcessesBlocked; want != have {
+		t.Errorf("want processes blocked (procs_blocked) %d, have %d", want, have)
+	}
+
+	// softirq
+	if want, have := uint64(5057579), s.SoftIRQTotal; want != have {
+		t.Errorf("want softirq total %d, have %d", want, have)
+	}
+
+	if want, have := uint64(508444), s.SoftIRQ.Rcu; want != have {
+		t.Errorf("want softirq RCU %d, have %d", want, have)
+	}
+
+}