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sap-jenkins-library/pkg/cloudfoundry/ManifestUtils_test.go

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//go:build unit
// +build unit
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) {
assert.Equal(t, "myManifest.yaml", manifest.GetFileName())
}
}
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
}