github.com/rkt/rkt@v1.30.1-0.20200224141603-171c416fac02/tests/rkt_oom_score_adj_test.go (about)

     1  // Copyright 2016 The rkt Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // +build host coreos src
    16  
    17  package main
    18  
    19  import (
    20  	"fmt"
    21  	"os"
    22  	"testing"
    23  
    24  	"github.com/rkt/rkt/tests/testutils"
    25  )
    26  
    27  func TestOOMScoreAdjust(t *testing.T) {
    28  	for _, tt := range []struct {
    29  		patch    []string
    30  		appArgs  string
    31  		expected string
    32  	}{
    33  		{
    34  			patch:    []string{"--isolators=os/linux/oom-score-adj,99"},
    35  			expected: "<<<99",
    36  		},
    37  		{
    38  			patch:    []string{"--isolators=os/linux/oom-score-adj,-50"},
    39  			expected: "<<<-50",
    40  		},
    41  		{
    42  			patch:    nil,
    43  			expected: "<<<0",
    44  		},
    45  		{
    46  			patch:    nil,
    47  			appArgs:  "--oom-score-adj 42",
    48  			expected: "<<<42",
    49  		},
    50  	} {
    51  		func() {
    52  			ctx := testutils.NewRktRunCtx()
    53  			defer ctx.Cleanup()
    54  
    55  			ps := []string{}
    56  			if len(tt.patch) > 0 {
    57  				ps = append(ps, tt.patch...)
    58  			}
    59  
    60  			image := patchTestACI("rkt-oom-adj.aci", ps...)
    61  			defer os.Remove(image)
    62  
    63  			imageParams := "--exec=/inspect -- -read-file -file-name /proc/self/oom_score_adj"
    64  
    65  			rktCmd := fmt.Sprintf(
    66  				"%s --debug --insecure-options=image run %s %s %s",
    67  				ctx.Cmd(),
    68  				image,
    69  				tt.appArgs,
    70  				imageParams,
    71  			)
    72  
    73  			runRktAndCheckOutput(t, rktCmd, tt.expected, false)
    74  		}()
    75  	}
    76  }