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Commit 248b794c authored by Jack Greenfield's avatar Jack Greenfield
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Merge pull request #262 from vaikas-google/master 

mechanical move of NewTemplate* methods from expander to util package
parents 7344fed4 9ae0a405
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Showing with 356 additions and 304 deletions
dm/dm.go
View file @ 248b794c
...@@ -20,7 +20,7 @@ import ( ...@@ -20,7 +20,7 @@ import (
"github.com/ghodss/yaml" "github.com/ghodss/yaml"
"github.com/kubernetes/deployment-manager/common" "github.com/kubernetes/deployment-manager/common"
"github.com/kubernetes/deployment-manager/expandybird/expander" "github.com/kubernetes/deployment-manager/util"
"archive/tar" "archive/tar"
"bytes" "bytes"
...@@ -337,14 +337,14 @@ func loadTemplate(args []string) *common.Template { ...@@ -337,14 +337,14 @@ func loadTemplate(args []string) *common.Template {
} }
r := bytes.NewReader(input) r := bytes.NewReader(input)
template, err = expander.NewTemplateFromArchive(args[1], r, args[2:]) template, err = util.NewTemplateFromArchive(args[1], r, args[2:])
if err != nil { if err != nil {
if err != tar.ErrHeader { if err != tar.ErrHeader {
panic(err) panic(err)
} }
r := bytes.NewReader(input) r := bytes.NewReader(input)
template, err = expander.NewTemplateFromReader(args[1], r, args[2:]) template, err = util.NewTemplateFromReader(args[1], r, args[2:])
if err != nil { if err != nil {
panic(fmt.Errorf("cannot create configuration from supplied arguments: %s\n", err)) panic(fmt.Errorf("cannot create configuration from supplied arguments: %s\n", err))
} }
...@@ -354,9 +354,9 @@ func loadTemplate(args []string) *common.Template { ...@@ -354,9 +354,9 @@ func loadTemplate(args []string) *common.Template {
// it's a local file, it's configuration. // it's a local file, it's configuration.
if _, err := os.Stat(args[1]); err == nil { if _, err := os.Stat(args[1]); err == nil {
if len(args) > 2 { if len(args) > 2 {
template, err = expander.NewTemplateFromFileNames(args[1], args[2:]) template, err = util.NewTemplateFromFileNames(args[1], args[2:])
} else { } else {
template, err = expander.NewTemplateFromRootTemplate(args[1]) template, err = util.NewTemplateFromRootTemplate(args[1])
} }
} else { } else {
template = buildTemplateFromType(args[1]) template = buildTemplateFromType(args[1])
...@@ -397,7 +397,7 @@ func buildTemplateFromType(t string) *common.Template { ...@@ -397,7 +397,7 @@ func buildTemplateFromType(t string) *common.Template {
} }
// Name the deployment after the type name. // Name the deployment after the type name.
template, err := expander.NewTemplateFromType(t, t, props) template, err := util.NewTemplateFromType(t, t, props)
if err != nil { if err != nil {
panic(fmt.Errorf("cannot create configuration from type (%s): %s\n", t, err)) panic(fmt.Errorf("cannot create configuration from type (%s): %s\n", t, err))
} }
......
expandybird/expander/expander.go
View file @ 248b794c
...@@ -17,16 +17,11 @@ limitations under the License. ...@@ -17,16 +17,11 @@ limitations under the License.
package expander package expander
import ( import (
"archive/tar"
"bytes" "bytes"
"fmt" "fmt"
"io"
"io/ioutil"
"log" "log"
"os" "os"
"os/exec" "os/exec"
"path"
"path/filepath"
"github.com/ghodss/yaml" "github.com/ghodss/yaml"
"github.com/kubernetes/deployment-manager/common" "github.com/kubernetes/deployment-manager/common"
...@@ -46,172 +41,6 @@ func NewExpander(binary string) Expander { ...@@ -46,172 +41,6 @@ func NewExpander(binary string) Expander {
return &expander{binary} return &expander{binary}
} }
// NewTemplateFromType creates and returns a new template whose content
// is a YAML marshaled resource assembled from the supplied arguments.
func NewTemplateFromType(name, typeName string, properties map[string]interface{}) (*common.Template, error) {
resource := &common.Resource{
Name: name,
Type: typeName,
Properties: properties,
}
config := common.Configuration{Resources: []*common.Resource{resource}}
content, err := yaml.Marshal(config)
if err != nil {
return nil, fmt.Errorf("error: %s\ncannot marshal configuration: %v\n", err, config)
}
template := &common.Template{
Name: name,
Content: string(content),
Imports: []*common.ImportFile{},
}
return template, nil
}
// NewTemplateFromArchive creates and returns a new template whose content
// and imported files are read from the supplied archive.
func NewTemplateFromArchive(name string, r io.Reader, importFileNames []string) (*common.Template, error) {
var content []byte
imports, err := collectImportFiles(importFileNames)
if err != nil {
return nil, err
}
tr := tar.NewReader(r)
for i := 0; true; i++ {
hdr, err := tr.Next()
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
if hdr.Name != name {
importFileData, err := ioutil.ReadAll(tr)
if err != nil {
return nil, fmt.Errorf("cannot read archive file %s: %s", hdr.Name, err)
}
imports = append(imports,
&common.ImportFile{
Name: path.Base(hdr.Name),
Content: string(importFileData),
})
} else {
content, err = ioutil.ReadAll(tr)
if err != nil {
return nil, fmt.Errorf("cannot read %s from archive: %s", name, err)
}
}
}
if len(content) < 1 {
return nil, fmt.Errorf("cannot find %s in archive", name)
}
return &common.Template{
Name: name,
Content: string(content),
Imports: imports,
}, nil
}
// NewTemplateFromReader creates and returns a new template whose content
// is read from the supplied reader.
func NewTemplateFromReader(name string, r io.Reader, importFileNames []string) (*common.Template, error) {
content, err := ioutil.ReadAll(r)
if err != nil {
return nil, fmt.Errorf("cannot read archive %s: %s", name, err)
}
return newTemplateFromContentAndImports(name, string(content), importFileNames)
}
// NewTemplateFromRootTemplate creates and returns a new template whose content
// and imported files are constructed from reading the root template, parsing out
// the imports section and reading the imports from there
func NewTemplateFromRootTemplate(templateFileName string) (*common.Template, error) {
templateDir := filepath.Dir(templateFileName)
content, err := ioutil.ReadFile(templateFileName)
if err != nil {
return nil, fmt.Errorf("cannot read template file (%s): %s", err, templateFileName)
}
var c map[string]interface{}
err = yaml.Unmarshal([]byte(content), &c)
if err != nil {
log.Fatalf("Cannot parse template: %v", err)
}
// For each of the imports, grab the import file
var imports []string
if c["imports"] != nil {
for _, importFile := range c["imports"].([]interface{}) {
var fileName = importFile.(map[string]interface{})["path"].(string)
imports = append(imports, templateDir+"/"+fileName)
}
}
return NewTemplateFromFileNames(templateFileName, imports[0:])
}
// NewTemplateFromFileNames creates and returns a new template whose content
// and imported files are read from the supplied file names.
func NewTemplateFromFileNames(
templateFileName string,
importFileNames []string,
) (*common.Template, error) {
content, err := ioutil.ReadFile(templateFileName)
if err != nil {
return nil, fmt.Errorf("cannot read template file %s: %s", templateFileName, err)
}
name := path.Base(templateFileName)
return newTemplateFromContentAndImports(name, string(content), importFileNames)
}
func newTemplateFromContentAndImports(
name, content string,
importFileNames []string,
) (*common.Template, error) {
if len(content) < 1 {
return nil, fmt.Errorf("supplied configuration is empty")
}
imports, err := collectImportFiles(importFileNames)
if err != nil {
return nil, err
}
return &common.Template{
Name: name,
Content: content,
Imports: imports,
}, nil
}
func collectImportFiles(importFileNames []string) ([]*common.ImportFile, error) {
imports := []*common.ImportFile{}
for _, importFileName := range importFileNames {
importFileData, err := ioutil.ReadFile(importFileName)
if err != nil {
return nil, fmt.Errorf("cannot read import file %s: %s", importFileName, err)
}
imports = append(imports,
&common.ImportFile{
Name: path.Base(importFileName),
Content: string(importFileData),
})
}
return imports, nil
}
// ExpansionResult describes the unmarshalled output of ExpandTemplate. // ExpansionResult describes the unmarshalled output of ExpandTemplate.
type ExpansionResult struct { type ExpansionResult struct {
Config map[string]interface{} Config map[string]interface{}
......
expandybird/expander/expander_test.go
View file @ 248b794c
...@@ -17,8 +17,6 @@ limitations under the License. ...@@ -17,8 +17,6 @@ limitations under the License.
package expander package expander
import ( import (
"archive/tar"
"bytes"
"fmt" "fmt"
"io" "io"
"io/ioutil" "io/ioutil"
...@@ -28,12 +26,10 @@ import ( ...@@ -28,12 +26,10 @@ import (
"strings" "strings"
"testing" "testing"
"github.com/ghodss/yaml"
"github.com/kubernetes/deployment-manager/common" "github.com/kubernetes/deployment-manager/common"
"github.com/kubernetes/deployment-manager/util"
) )
const invalidFileName = "afilethatdoesnotexist"
var importFileNames = []string{ var importFileNames = []string{
"../test/replicatedservice.py", "../test/replicatedservice.py",
} }
...@@ -51,7 +47,7 @@ type ExpanderTestCase struct { ...@@ -51,7 +47,7 @@ type ExpanderTestCase struct {
} }
func (etc *ExpanderTestCase) GetTemplate(t *testing.T) *common.Template { func (etc *ExpanderTestCase) GetTemplate(t *testing.T) *common.Template {
template, err := NewTemplateFromFileNames(etc.TemplateFileName, etc.ImportFileNames) template, err := util.NewTemplateFromFileNames(etc.TemplateFileName, etc.ImportFileNames)
if err != nil { if err != nil {
t.Fatalf("cannot create template for test case '%s': %s", etc.Description, err) t.Fatalf("cannot create template for test case '%s': %s", etc.Description, err)
} }
...@@ -108,131 +104,14 @@ func testExpandTemplateFromFile(t *testing.T, fileName, baseName string, importF ...@@ -108,131 +104,14 @@ func testExpandTemplateFromFile(t *testing.T, fileName, baseName string, importF
expandAndVerifyOutput(t, actualOutput, description) expandAndVerifyOutput(t, actualOutput, description)
} }
var (
testTemplateName = "expandybird"
testTemplateType = "replicatedservice.py"
testTemplateProperties = `
service_port: 8080
target_port: 8080
container_port: 8080
external_service: true
replicas: 3
image: gcr.io/dm-k8s-testing/expandybird
labels:
app: expandybird
`
)
func TestNewTemplateFromType(t *testing.T) {
var properties map[string]interface{}
if err := yaml.Unmarshal([]byte(testTemplateProperties), &properties); err != nil {
t.Fatalf("cannot unmarshal test data: %s", err)
}
_, err := NewTemplateFromType(testTemplateName, testTemplateType, properties)
if err != nil {
t.Fatalf("cannot create template from type %s: %s", testTemplateType, err)
}
}
func TestNewTemplateFromReader(t *testing.T) {
r := bytes.NewReader([]byte{})
if _, err := NewTemplateFromReader("test", r, nil); err == nil {
t.Fatalf("expected error did not occur for empty input: %s", err)
}
r = bytes.NewReader([]byte("test"))
if _, err := NewTemplateFromReader("test", r, nil); err != nil {
t.Fatalf("cannot read test template: %s", err)
}
}
type archiveBuilder []struct {
Name, Body string
}
var invalidFiles = archiveBuilder{
{"testFile1.yaml", ""},
}
var validFiles = archiveBuilder{
{"testFile1.yaml", "testFile:1"},
{"testFile2.yaml", "testFile:2"},
}
func generateArchive(t *testing.T, files archiveBuilder) *bytes.Reader {
buffer := new(bytes.Buffer)
tw := tar.NewWriter(buffer)
for _, file := range files {
hdr := &tar.Header{
Name: file.Name,
Mode: 0600,
Size: int64(len(file.Body)),
}
if err := tw.WriteHeader(hdr); err != nil {
t.Fatal(err)
}
if _, err := tw.Write([]byte(file.Body)); err != nil {
t.Fatal(err)
}
}
if err := tw.Close(); err != nil {
t.Fatal(err)
}
r := bytes.NewReader(buffer.Bytes())
return r
}
func TestNewTemplateFromArchive(t *testing.T) {
r := bytes.NewReader([]byte{})
if _, err := NewTemplateFromArchive("", r, nil); err == nil {
t.Fatalf("expected error did not occur for empty input: %s", err)
}
r = bytes.NewReader([]byte("test"))
if _, err := NewTemplateFromArchive("", r, nil); err == nil {
t.Fatalf("expected error did not occur for non archive file:%s", err)
}
r = generateArchive(t, invalidFiles)
if _, err := NewTemplateFromArchive(invalidFiles[0].Name, r, nil); err == nil {
t.Fatalf("expected error did not occur for empty file in archive")
}
r = generateArchive(t, validFiles)
if _, err := NewTemplateFromArchive("", r, nil); err == nil {
t.Fatalf("expected error did not occur for missing file in archive")
}
r = generateArchive(t, validFiles)
if _, err := NewTemplateFromArchive(validFiles[1].Name, r, nil); err != nil {
t.Fatalf("cannnot create template from valid archive")
}
}
func TestNewTemplateFromFileNames(t *testing.T) {
if _, err := NewTemplateFromFileNames(invalidFileName, importFileNames); err == nil {
t.Fatalf("expected error did not occur for invalid template file name")
}
_, err := NewTemplateFromFileNames(invalidFileName, []string{"afilethatdoesnotexist"})
if err == nil {
t.Fatalf("expected error did not occur for invalid import file names")
}
}
func TestExpandTemplateFromReader(t *testing.T) { func TestExpandTemplateFromReader(t *testing.T) {
baseName := path.Base(validFileName) baseName := path.Base(validFileName)
testExpandTemplateFromFile(t, validFileName, baseName, importFileNames, NewTemplateFromReader) testExpandTemplateFromFile(t, validFileName, baseName, importFileNames, util.NewTemplateFromReader)
} }
func TestExpandTemplateFromArchive(t *testing.T) { func TestExpandTemplateFromArchive(t *testing.T) {
baseName := path.Base(validFileName) baseName := path.Base(validFileName)
testExpandTemplateFromFile(t, archiveFileName, baseName, nil, NewTemplateFromArchive) testExpandTemplateFromFile(t, archiveFileName, baseName, nil, util.NewTemplateFromArchive)
} }
var ExpanderTestCases = []ExpanderTestCase{ var ExpanderTestCases = []ExpanderTestCase{
......
expandybird/service/service_test.go
View file @ 248b794c
...@@ -26,15 +26,15 @@ import ( ...@@ -26,15 +26,15 @@ import (
"reflect" "reflect"
"testing" "testing"
"github.com/kubernetes/deployment-manager/expandybird/expander"
"github.com/kubernetes/deployment-manager/common" "github.com/kubernetes/deployment-manager/common"
"github.com/kubernetes/deployment-manager/expandybird/expander"
"github.com/kubernetes/deployment-manager/util" "github.com/kubernetes/deployment-manager/util"
restful "github.com/emicklei/go-restful" restful "github.com/emicklei/go-restful"
) )
func GetTemplateReader(t *testing.T, description string, templateFileName string) io.Reader { func GetTemplateReader(t *testing.T, description string, templateFileName string) io.Reader {
template, err := expander.NewTemplateFromFileNames(templateFileName, importFileNames) template, err := util.NewTemplateFromFileNames(templateFileName, importFileNames)
if err != nil { if err != nil {
t.Errorf("cannot create template for test case (%s): %s\n", err, description) t.Errorf("cannot create template for test case (%s): %s\n", err, description)
} }
......
util/templateutil.go 0 → 100644
View file @ 248b794c
/*
Copyright 2015 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package util
import (
"archive/tar"
"fmt"
"io"
"io/ioutil"
"log"
"path"
"path/filepath"
"github.com/ghodss/yaml"
"github.com/kubernetes/deployment-manager/common"
)
// NewTemplateFromType creates and returns a new template whose content
// is a YAML marshaled resource assembled from the supplied arguments.
func NewTemplateFromType(name, typeName string, properties map[string]interface{}) (*common.Template, error) {
resource := &common.Resource{
Name: name,
Type: typeName,
Properties: properties,
}
config := common.Configuration{Resources: []*common.Resource{resource}}
content, err := yaml.Marshal(config)
if err != nil {
return nil, fmt.Errorf("error: %s\ncannot marshal configuration: %v\n", err, config)
}
template := &common.Template{
Name: name,
Content: string(content),
Imports: []*common.ImportFile{},
}
return template, nil
}
// NewTemplateFromArchive creates and returns a new template whose content
// and imported files are read from the supplied archive.
func NewTemplateFromArchive(name string, r io.Reader, importFileNames []string) (*common.Template, error) {
var content []byte
imports, err := collectImportFiles(importFileNames)
if err != nil {
return nil, err
}
tr := tar.NewReader(r)
for i := 0; true; i++ {
hdr, err := tr.Next()
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
if hdr.Name != name {
importFileData, err := ioutil.ReadAll(tr)
if err != nil {
return nil, fmt.Errorf("cannot read archive file %s: %s", hdr.Name, err)
}
imports = append(imports,
&common.ImportFile{
Name: path.Base(hdr.Name),
Content: string(importFileData),
})
} else {
content, err = ioutil.ReadAll(tr)
if err != nil {
return nil, fmt.Errorf("cannot read %s from archive: %s", name, err)
}
}
}
if len(content) < 1 {
return nil, fmt.Errorf("cannot find %s in archive", name)
}
return &common.Template{
Name: name,
Content: string(content),
Imports: imports,
}, nil
}
// NewTemplateFromReader creates and returns a new template whose content
// is read from the supplied reader.
func NewTemplateFromReader(name string, r io.Reader, importFileNames []string) (*common.Template, error) {
content, err := ioutil.ReadAll(r)
if err != nil {
return nil, fmt.Errorf("cannot read archive %s: %s", name, err)
}
return newTemplateFromContentAndImports(name, string(content), importFileNames)
}
// NewTemplateFromRootTemplate creates and returns a new template whose content
// and imported files are constructed from reading the root template, parsing out
// the imports section and reading the imports from there
func NewTemplateFromRootTemplate(templateFileName string) (*common.Template, error) {
templateDir := filepath.Dir(templateFileName)
content, err := ioutil.ReadFile(templateFileName)
if err != nil {
return nil, fmt.Errorf("cannot read template file (%s): %s", err, templateFileName)
}
var c map[string]interface{}
err = yaml.Unmarshal([]byte(content), &c)
if err != nil {
log.Fatalf("Cannot parse template: %v", err)
}
// For each of the imports, grab the import file
var imports []string
if c["imports"] != nil {
for _, importFile := range c["imports"].([]interface{}) {
var fileName = importFile.(map[string]interface{})["path"].(string)
imports = append(imports, templateDir+"/"+fileName)
}
}
return NewTemplateFromFileNames(templateFileName, imports[0:])
}
// NewTemplateFromFileNames creates and returns a new template whose content
// and imported files are read from the supplied file names.
func NewTemplateFromFileNames(
templateFileName string,
importFileNames []string,
) (*common.Template, error) {
content, err := ioutil.ReadFile(templateFileName)
if err != nil {
return nil, fmt.Errorf("cannot read template file %s: %s", templateFileName, err)
}
name := path.Base(templateFileName)
return newTemplateFromContentAndImports(name, string(content), importFileNames)
}
func newTemplateFromContentAndImports(
name, content string,
importFileNames []string,
) (*common.Template, error) {
if len(content) < 1 {
return nil, fmt.Errorf("supplied configuration is empty")
}
imports, err := collectImportFiles(importFileNames)
if err != nil {
return nil, err
}
return &common.Template{
Name: name,
Content: content,
Imports: imports,
}, nil
}
func collectImportFiles(importFileNames []string) ([]*common.ImportFile, error) {
imports := []*common.ImportFile{}
for _, importFileName := range importFileNames {
importFileData, err := ioutil.ReadFile(importFileName)
if err != nil {
return nil, fmt.Errorf("cannot read import file %s: %s", importFileName, err)
}
imports = append(imports,
&common.ImportFile{
Name: path.Base(importFileName),
Content: string(importFileData),
})
}
return imports, nil
}
util/templateutil_test.go 0 → 100644
View file @ 248b794c
/*
Copyright 2015 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package util
import (
"archive/tar"
"bytes"
"testing"
"github.com/ghodss/yaml"
)
const invalidFileName = "afilethatdoesnotexist"
var importFileNames = []string{
"../test/replicatedservice.py",
}
var (
testTemplateName = "expandybird"
testTemplateType = "replicatedservice.py"
testTemplateProperties = `
service_port: 8080
target_port: 8080
container_port: 8080
external_service: true
replicas: 3
image: gcr.io/dm-k8s-testing/expandybird
labels:
app: expandybird
`
)
func TestNewTemplateFromType(t *testing.T) {
var properties map[string]interface{}
if err := yaml.Unmarshal([]byte(testTemplateProperties), &properties); err != nil {
t.Fatalf("cannot unmarshal test data: %s", err)
}
_, err := NewTemplateFromType(testTemplateName, testTemplateType, properties)
if err != nil {
t.Fatalf("cannot create template from type %s: %s", testTemplateType, err)
}
}
func TestNewTemplateFromReader(t *testing.T) {
r := bytes.NewReader([]byte{})
if _, err := NewTemplateFromReader("test", r, nil); err == nil {
t.Fatalf("expected error did not occur for empty input: %s", err)
}
r = bytes.NewReader([]byte("test"))
if _, err := NewTemplateFromReader("test", r, nil); err != nil {
t.Fatalf("cannot read test template: %s", err)
}
}
type archiveBuilder []struct {
Name, Body string
}
var invalidFiles = archiveBuilder{
{"testFile1.yaml", ""},
}
var validFiles = archiveBuilder{
{"testFile1.yaml", "testFile:1"},
{"testFile2.yaml", "testFile:2"},
}
func generateArchive(t *testing.T, files archiveBuilder) *bytes.Reader {
buffer := new(bytes.Buffer)
tw := tar.NewWriter(buffer)
for _, file := range files {
hdr := &tar.Header{
Name: file.Name,
Mode: 0600,
Size: int64(len(file.Body)),
}
if err := tw.WriteHeader(hdr); err != nil {
t.Fatal(err)
}
if _, err := tw.Write([]byte(file.Body)); err != nil {
t.Fatal(err)
}
}
if err := tw.Close(); err != nil {
t.Fatal(err)
}
r := bytes.NewReader(buffer.Bytes())
return r
}
func TestNewTemplateFromArchive(t *testing.T) {
r := bytes.NewReader([]byte{})
if _, err := NewTemplateFromArchive("", r, nil); err == nil {
t.Fatalf("expected error did not occur for empty input: %s", err)
}
r = bytes.NewReader([]byte("test"))
if _, err := NewTemplateFromArchive("", r, nil); err == nil {
t.Fatalf("expected error did not occur for non archive file:%s", err)
}
r = generateArchive(t, invalidFiles)
if _, err := NewTemplateFromArchive(invalidFiles[0].Name, r, nil); err == nil {
t.Fatalf("expected error did not occur for empty file in archive")
}
r = generateArchive(t, validFiles)
if _, err := NewTemplateFromArchive("", r, nil); err == nil {
t.Fatalf("expected error did not occur for missing file in archive")
}
r = generateArchive(t, validFiles)
if _, err := NewTemplateFromArchive(validFiles[1].Name, r, nil); err != nil {
t.Fatalf("cannnot create template from valid archive")
}
}
func TestNewTemplateFromFileNames(t *testing.T) {
if _, err := NewTemplateFromFileNames(invalidFileName, importFileNames); err == nil {
t.Fatalf("expected error did not occur for invalid template file name")
}
_, err := NewTemplateFromFileNames(invalidFileName, []string{"afilethatdoesnotexist"})
if err == nil {
t.Fatalf("expected error did not occur for invalid import file names")
}
}
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