github.com/google/cadvisor@v0.49.1/container/common/container_hints_test.go (about)

     1  // Copyright 2014 Google Inc. All Rights Reserved.
     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  package common
    16  
    17  import (
    18  	"testing"
    19  )
    20  
    21  func TestGetContainerHintsFromFile(t *testing.T) {
    22  	cHints, err := GetContainerHintsFromFile("test_resources/container_hints.json")
    23  
    24  	if err != nil {
    25  		t.Fatalf("Error in unmarshalling: %s", err)
    26  	}
    27  
    28  	if cHints.AllHosts[0].NetworkInterface.VethHost != "veth24031eth1" &&
    29  		cHints.AllHosts[0].NetworkInterface.VethChild != "eth1" {
    30  		t.Errorf("Cannot find network interface in %+v", cHints)
    31  	}
    32  
    33  	correctMountDirs := [...]string{
    34  		"/var/run/nm-sdc1",
    35  		"/var/run/nm-sdb3",
    36  		"/var/run/nm-sda3",
    37  		"/var/run/netns/root",
    38  		"/var/run/openvswitch/db.sock",
    39  	}
    40  
    41  	if len(cHints.AllHosts[0].Mounts) == 0 {
    42  		t.Errorf("Cannot find any mounts")
    43  	}
    44  
    45  	for i, mountDir := range cHints.AllHosts[0].Mounts {
    46  		if correctMountDirs[i] != mountDir.HostDir {
    47  			t.Errorf("Cannot find mount %s in %+v", mountDir.HostDir, cHints)
    48  		}
    49  	}
    50  }
    51  
    52  func TestFileNotExist(t *testing.T) {
    53  	_, err := GetContainerHintsFromFile("/file_does_not_exist.json")
    54  	if err != nil {
    55  		t.Fatalf("GetContainerHintsFromFile must not error for blank file: %s", err)
    56  	}
    57  }