67 lines
1.9 KiB
Go
67 lines
1.9 KiB
Go
// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package boot
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import (
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"testing"
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rpb "gvisor.googlesource.com/gvisor/pkg/sentry/arch/registers_go_proto"
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)
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func TestOnceTracker(t *testing.T) {
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o := onceTracker{}
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if !o.shouldReport(nil) {
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t.Error("first call to checkAndMark, got: false, want: true")
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}
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o.onReported(nil)
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for i := 0; i < 2; i++ {
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if o.shouldReport(nil) {
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t.Error("after first call to checkAndMark, got: true, want: false")
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}
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}
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}
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func TestCmdTracker(t *testing.T) {
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for _, tc := range []struct {
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name string
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idx int
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rdi1 uint64
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rdi2 uint64
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rsi1 uint64
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rsi2 uint64
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want bool
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}{
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{name: "same rdi", idx: 0, rdi1: 123, rdi2: 123, want: false},
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{name: "same rsi", idx: 1, rsi1: 123, rsi2: 123, want: false},
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{name: "diff rdi", idx: 0, rdi1: 123, rdi2: 321, want: true},
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{name: "diff rsi", idx: 1, rsi1: 123, rsi2: 321, want: true},
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{name: "cmd is uint32", idx: 0, rsi1: 0xdead00000123, rsi2: 0xbeef00000123, want: false},
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} {
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t.Run(tc.name, func(t *testing.T) {
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c := newCmdTracker(tc.idx)
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regs := &rpb.AMD64Registers{Rdi: tc.rdi1, Rsi: tc.rsi1}
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if !c.shouldReport(regs) {
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t.Error("first call to checkAndMark, got: false, want: true")
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}
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c.onReported(regs)
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regs.Rdi, regs.Rsi = tc.rdi2, tc.rsi2
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if got := c.shouldReport(regs); tc.want != got {
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t.Errorf("after first call to checkAndMark, got: %t, want: %t", got, tc.want)
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}
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})
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}
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}
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