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//go:build unit
// +build unit
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package cloudfoundry
import (
"testing"
"fmt"
"github.com/stretchr/testify/assert"
"io/ioutil"
"os"
)
func TestReadManifest ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'manifestAppName'}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
appName , err := manifest . GetAppName ( 0 )
if assert . NoError ( t , err ) {
assert . Equal ( t , "manifestAppName" , appName )
}
}
func TestNoRoute ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'manifestAppName', no-route: true}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
if ! assert . NoError ( t , err ) {
assert . FailNow ( t , "Cannot read manifest file" )
}
noRoute , err := manifest . GetApplicationProperty ( 0 , "no-route" )
if assert . NoError ( t , err ) {
assert . Equal ( t , noRoute , true )
}
}
func TestTransformGoodCase ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'manifestAppName', no-route: true, buildpacks: [sap_java_buildpack]}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
assert . NoError ( t , err )
err = manifest . Transform ( )
assert . NoError ( t , err )
buildpack , err := manifest . GetApplicationProperty ( 0 , "buildpack" )
assert . NoError ( t , err )
buildpacks , err := manifest . GetApplicationProperty ( 0 , "buildpacks" )
assert . Equal ( t , "sap_java_buildpack" , buildpack )
assert . Equal ( t , nil , buildpacks )
assert . True ( t , manifest . IsModified ( ) )
}
func TestTransformMultipleBuildPacks ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'manifestAppName', buildpacks: [sap_java_buildpack, 'another_buildpack']}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
assert . NoError ( t , err )
err = manifest . Transform ( )
assert . EqualError ( t , err , "More than one Cloud Foundry Buildpack is not supported. Please check manifest file 'myManifest.yaml', application 'manifestAppName'" )
}
func TestTransformUnchanged ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'manifestAppName', no-route: true, buildpack: sap_java_buildpack}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
assert . NoError ( t , err )
err = manifest . Transform ( )
buildpack , err := manifest . GetApplicationProperty ( 0 , "buildpack" )
assert . NoError ( t , err )
_ , err = manifest . GetApplicationProperty ( 0 , "buildpacks" )
assert . Equal ( t , "sap_java_buildpack" , buildpack )
assert . EqualError ( t , err , "No such property: 'buildpacks' available in application at position 0" )
assert . False ( t , manifest . IsModified ( ) )
}
func TestGetManifestName ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'firstApp'}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
if assert . NoError ( t , err ) {
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assert . Equal ( t , "myManifest.yaml" , manifest . GetFileName ( ) )
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}
}
func TestApplicationHasProperty ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'firstApp'}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
if assert . NoError ( t , err ) {
t . Run ( "Property exists" , func ( t * testing . T ) {
hasProp , err := manifest . ApplicationHasProperty ( 0 , "name" )
if assert . NoError ( t , err ) {
assert . True ( t , hasProp )
}
} )
t . Run ( "Property does not exist" , func ( t * testing . T ) {
hasProp , err := manifest . ApplicationHasProperty ( 0 , "foo" )
if assert . NoError ( t , err ) {
assert . False ( t , hasProp )
}
} )
t . Run ( "Index out of bounds" , func ( t * testing . T ) {
_ , err := manifest . ApplicationHasProperty ( 1 , "foo" )
assert . EqualError ( t , err , "Index (1) out of bound. Number of apps: 1" )
} )
}
}
func TestGetApplicationsWhenNoApplicationNoIsPresent ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "noApps: true" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
_ , err = manifest . GetApplications ( )
assert . EqualError ( t , err , "Failed to convert <nil> to slice. Was <nil>" )
}
func TestGetApplications ( t * testing . T ) {
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'firstApp'}, {name: 'secondApp'}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
apps , err := manifest . GetApplications ( )
if assert . NoError ( t , err ) {
assert . Len ( t , apps , 2 )
assert . Equal ( t , map [ string ] interface { } { "name" : "firstApp" } , apps [ 0 ] )
assert . Equal ( t , map [ string ] interface { } { "name" : "secondApp" } , apps [ 1 ] )
}
}
func TestWriteManifest ( t * testing . T ) {
var _content string
_readFile = func ( filename string ) ( [ ] byte , error ) {
if filename == "myManifest.yaml" {
return [ ] byte ( "applications: [{name: 'manifestAppName', no-route: true, buildpacks: [sap_java_buildpack]}]" ) , nil
}
return [ ] byte { } , fmt . Errorf ( "File '%s' not found" , filename )
}
_writeFile = func ( name string , content [ ] byte , mode os . FileMode ) error {
_content = string ( content )
return nil
}
defer cleanup ( )
manifest , err := ReadManifest ( "myManifest.yaml" )
if ! assert . NoError ( t , err ) {
assert . FailNow ( t , "Cannot read manifest" )
}
err = manifest . Transform ( )
if ! assert . True ( t , manifest . IsModified ( ) ) {
assert . FailNow ( t , "Manifest claims to be unchanged, but should have been changed." )
}
manifest . WriteManifest ( )
// after saving it is considered unchanged again.
t . Run ( "Unchanged flag" , func ( t * testing . T ) {
assert . False ( t , manifest . IsModified ( ) )
} )
t . Run ( "Check content" , func ( t * testing . T ) {
assert . Equal ( t , "applications:\n- buildpack: sap_java_buildpack\n name: manifestAppName\n no-route: true\n" , _content )
} )
}
func cleanup ( ) {
_readFile = ioutil . ReadFile
_writeFile = ioutil . WriteFile
}