fs_test.go

Documentation: github.com/prometheus/procfs

     1  // Copyright 2018 The Prometheus Authors
     2  // Licensed under the Apache License, Version 2.0 (the "License");
     3  // you may not use this file except in compliance with the License.
     4  // You may obtain a copy of the License at
     5  //
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package procfs
    15  
    16  import "testing"
    17  
    18  const (
    19  	procTestFixtures = "testdata/fixtures/proc"
    20  )
    21  
    22  func TestNewFS(t *testing.T) {
    23  	if _, err := NewFS("foobar"); err == nil {
    24  		t.Error("want NewFS to fail for non-existing mount point")
    25  	}
    26  
    27  	if _, err := NewFS("procfs.go"); err == nil {
    28  		t.Error("want NewFS to fail if mount point is not a directory")
    29  	}
    30  	getProcFixtures(t)
    31  }
    32  
    33  func getProcFixtures(t *testing.T) FS {
    34  	fs, err := NewFS(procTestFixtures)
    35  	if err != nil {
    36  		t.Fatalf("Creating pseudo fs from getProcFixtures failed at fixtures/proc with error: %s", err)
    37  	}
    38  	return fs
    39  }
    40
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