go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/common/tsmon/config_test.go (about)

     1  // Copyright 2015 The LUCI 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  package tsmon
    16  
    17  import (
    18  	"io/ioutil"
    19  	"os"
    20  	"testing"
    21  
    22  	. "github.com/smartystreets/goconvey/convey"
    23  )
    24  
    25  func TestLoadConfig(t *testing.T) {
    26  	Convey("No file", t, func() {
    27  		c, err := loadConfig("")
    28  		So(c.Credentials, ShouldEqual, "")
    29  		So(c.Endpoint, ShouldEqual, "")
    30  		So(err, ShouldBeNil)
    31  	})
    32  
    33  	Convey("Missing file", t, func() {
    34  		c, err := loadConfig("/does/not/exist")
    35  		So(c.Credentials, ShouldEqual, "")
    36  		So(c.Endpoint, ShouldEqual, "")
    37  		So(err, ShouldBeNil)
    38  	})
    39  
    40  	Convey("Empty file", t, func() {
    41  		tf, err := ioutil.TempFile("", "config_test")
    42  		if err != nil {
    43  			t.Fail()
    44  		}
    45  		defer tf.Close()
    46  		defer os.Remove(tf.Name())
    47  
    48  		c, err := loadConfig(tf.Name())
    49  		So(c.Endpoint, ShouldEqual, "")
    50  		So(c.Credentials, ShouldEqual, "")
    51  		So(c.AutoGenHostname, ShouldEqual, false)
    52  		So(c.Hostname, ShouldEqual, "")
    53  		So(c.Region, ShouldEqual, "")
    54  		So(err, ShouldNotBeNil)
    55  	})
    56  
    57  	Convey("Full file", t, func() {
    58  		tf, err := ioutil.TempFile("", "config_test")
    59  		if err != nil {
    60  			t.Fail()
    61  		}
    62  		defer tf.Close()
    63  		defer os.Remove(tf.Name())
    64  
    65  		tf.WriteString(`
    66  			{"endpoint":         "foo",
    67  			 "credentials":      "bar",
    68  			 "autogen_hostname": true,
    69  			 "hostname":         "test_host",
    70  			 "region":           "test_region"
    71  			}`)
    72  		tf.Sync()
    73  
    74  		c, err := loadConfig(tf.Name())
    75  		So(c.Endpoint, ShouldEqual, "foo")
    76  		So(c.Credentials, ShouldEqual, "bar")
    77  		So(c.AutoGenHostname, ShouldEqual, true)
    78  		So(c.Hostname, ShouldEqual, "test_host")
    79  		So(c.Region, ShouldEqual, "test_region")
    80  		So(err, ShouldBeNil)
    81  	})
    82  }