func (suite *TestSuiteTemplate) TestGet(c *C) {
// Write something
url := "zk://" + strings.Join(Hosts(), ",")
zk, err := namespace.Dial(context.Background(), url)
c.Assert(err, IsNil)
c.Log(zk)
defer zk.Close()
k := fmt.Sprintf("/unit-test/registry/template/%d/test", time.Now().Unix())
p := namespace.NewPath(k)
v := []byte("test")
_, err = zk.Put(p, v, false)
c.Assert(err, IsNil)
suite.template = "The value is {{get \"zk://" + k + "\"}}!"
// Generate the auth token required by the server.
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
ctx := resource.ContextPutHttpHeader(context.Background(), header)
applied, err := template.Execute(ctx, fmt.Sprintf("http://localhost:%d/secure", suite.port))
c.Assert(err, IsNil)
c.Log(string(applied))
c.Assert(string(applied), Equals, "The value is test!")
}
func (suite *TestSuiteTemplate) TestTemplateExecuteWithVarBlock(c *C) {
// Generate the auth token required by the server.
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
// This is the content to be served by the test server.
// Using the Execute will add additional functions that can be included in the var blocks.
suite.template = `
{{define "comments"}}
# The variable define blocks allow the definition of variables that are reused throughout the
# main body of the template. The variables are referenced as '<blockname>.<fieldname>'.
{{end}}
{{define "app"}} # blockname is 'app'
version: 1.2
image: repo
build: 1234
dir: {{sh "pwd"}} # Invoke shell and use that as the value.
user: "******"USER"}}" # Getting the environment variable and use that as value.
{{end}}
{{define "host"}}
label: appserver
name: myhost
port: {{.port}} # Here we allow the application to pass in a context that's refereceable.
{{end}}
{
"image" : "repo/myapp:` + "{{my `app.version`}}-{{my `app.build`}}" + `",
"host" : "` + "{{my `host.name`}}" + `",{{/* use this for comment in JSON :) */}}
"dir" : "` + "{{my `app.dir`}}" + `",
"user" : "` + "{{my `app.user`}}" + `",
"port" : "` + "{{my `host.port`}}" + `"
}`
// The url is a template too.
url := "http://localhost:{{.port}}/secure"
data := map[string]interface{}{
"Name": "test",
"Age": 20,
"port": suite.port,
}
ctx := ContextPutTemplateData(resource.ContextPutHttpHeader(context.Background(), header), data)
text, err := Execute(ctx, url)
c.Assert(err, IsNil)
c.Log(string(text))
obj := make(map[string]string)
err = json.Unmarshal(text, &obj)
c.Assert(err, IsNil)
c.Assert(obj["image"], Equals, "repo/myapp:1.2-1234")
c.Assert(obj["user"], Equals, os.Getenv("USER"))
c.Assert(obj["host"], Equals, "myhost")
c.Assert(obj["port"], Equals, fmt.Sprintf("%d", suite.port))
c.Assert(obj["dir"], Equals, os.Getenv("PWD"))
}
// Tests overlaying one config on top of another via multiple flags
func (suite *TestSuiteConf) TestConfOverlay(c *C) {
suite.template1 = `
string: this is a literal string
int: 25
addr:
addr1: 1234 post
addr2: sf, ca 94019
`
suite.template2 = `
string: this is a override literal string
int: 50
template: '{{ format "hello/{{.Domain}}/{{.Service}}" }}' # { is special char in yaml, must quote the string with '
bar: 27
`
test := new(testCommand)
test.OnDoneExecuteLayer = func(cf *Conf, url string, result []byte, err error) {
c.Log("Processed:", url, ".... result=", string(result))
}
test.OnDoneUnmarshalLayer = func(cf *Conf, url string, err error) {
c.Log("Processed:", url, ".... model=", cf.Model())
}
test.OnDoneUnmarshal = func(cf *Conf, obj interface{}) {
c.Log("Got unmarshaled object = ", cf.model, "===object=>", obj)
}
fs := flag.GetFlagSet("test", test)
err := fs.Parse(args("-conf.url=http://localhost:7997/template1 -conf.url=http://localhost:7997/template2"))
header := http.Header{}
token := auth.NewToken(1*time.Hour).Add("secure", 1)
token.SetHeader(header, testutil.PrivateKeyFunc)
ctx := resource.ContextPutHttpHeader(context.Background(), header)
ctx = ContextPutConfigDataType(ctx, encoding.ContentTypeYAML)
fm := NewFuncMap().Bind("format").To(escapeFunc("format")).Build()
c.Assert(fm["format"], Not(IsNil))
err = Configure(ctx, test.Conf, test, fm)
c.Assert(err, IsNil)
c.Log("test=", test)
c.Assert(test.Urls, DeepEquals, []string{"http://localhost:7997/template1", "http://localhost:7997/template2"})
c.Assert(test.String, Equals, "this is a override literal string")
c.Assert(test.Int, Equals, 50)
c.Assert(test.Addr.Addr1, Equals, "1234 post")
c.Assert(test.Addr.Addr2, Equals, "sf, ca 94019")
c.Assert(test.Template, Equals, "{{format \"hello/{{.Domain}}/{{.Service}}\"}}")
}
func (suite *TestSuiteTemplate) TestList(c *C) {
// Write something
url := "zk://" + strings.Join(Hosts(), ",")
zk, err := namespace.Dial(context.Background(), url)
c.Assert(err, IsNil)
c.Log(zk)
defer zk.Close()
k := "/unit-test/registry/template/test"
p := namespace.NewPath(k)
err = zk.Delete(p)
// Write new data
v := []byte("test")
_, err = zk.Put(p, v, false)
c.Assert(err, IsNil)
// write children
for i := 0; i < 5; i++ {
cp := p.Sub(fmt.Sprintf("child-%d", i))
cv := []byte(fmt.Sprintf("value-%d", i))
_, err = zk.Put(cp, cv, false)
c.Assert(err, IsNil)
}
suite.template = "{{range list \"zk://" + k + "\"}}\n{{.}}{{end}}"
// Generate the auth token required by the server.
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
ctx := resource.ContextPutHttpHeader(context.Background(), header)
applied, err := template.Execute(ctx, fmt.Sprintf("http://localhost:%d/secure", suite.port))
c.Assert(err, IsNil)
c.Log(string(applied))
l := strings.Split(string(applied), "\n")[1:]
c.Assert(l, DeepEquals, []string{
url + "/unit-test/registry/template/test/child-4",
url + "/unit-test/registry/template/test/child-3",
url + "/unit-test/registry/template/test/child-2",
url + "/unit-test/registry/template/test/child-1",
url + "/unit-test/registry/template/test/child-0",
})
}
func (suite *TestSuiteFuncs) TestContentInline(c *C) {
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
ctx := resource.ContextPutHttpHeader(context.Background(), header)
// set up the content
suite.content = "this is a test"
f := ContentInline(ctx)
inline, ok := f.(func(string) (string, error))
c.Assert(ok, Equals, true)
out, err := inline(fmt.Sprintf("http://localhost:%d/secure", suite.port))
c.Assert(err, IsNil)
c.Log("out=", out)
c.Assert(out, Equals, suite.content)
}
// This test here shows how to implement two stages of configuring an object.
// First a field in the struct gets the source of the config url from the command line flags.
// Second, the config is fetched and unmarshalled to the object.
// Finally, we parse again so that additional flag values are overlaid onto the struct.
func (suite *TestSuiteCommand) TestCommandReparseFlag(c *C) {
Register("person", func() (Module, ErrorHandling) {
return new(person), PanicOnError
})
// Generate the auth token required by the server.
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
ctx := resource.ContextPutHttpHeader(context.Background(), header)
suite.template = `
name: joe
age: 21
employee: false
not-a-field: hello
`
p := &person{
Age: 18,
Employee: true,
}
RunModule("person", p, strings.Split("--config_url=http://localhost:7986/secure --age=35", " "), nil)
c.Assert(p.ConfigUrl, Equals, "http://localhost:7986/secure")
c.Assert(p.Employee, Equals, true)
data, err := resource.Fetch(ctx, p.ConfigUrl)
c.Assert(err, IsNil)
c.Log(string(data))
err = encoding.Unmarshal(encoding.ContentTypeYAML, bytes.NewBuffer(data), p)
c.Assert(err, IsNil)
c.Assert(p.Age, Equals, 21)
c.Assert(p.Name, Equals, "joe")
c.Assert(p.Employee, Equals, true) // we don't expect the yaml to change the field.
ReparseFlags(p)
c.Assert(p.Age, Equals, 35) // This is overwritten by the flag value
c.Assert(p.Name, Equals, "joe")
c.Assert(p.Employee, Equals, true)
}
func (suite *TestSuiteFuncs) TestContentToFileWithAuthToken(c *C) {
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
ctx := resource.ContextPutHttpHeader(context.Background(), header)
// set up the content
suite.content = "this is a test"
f := ContentToFile(ctx)
tofile, ok := f.(func(string, ...interface{}) (string, error))
c.Assert(ok, Equals, true)
path, err := tofile(fmt.Sprintf("http://localhost:%d/secure", suite.port))
c.Assert(err, IsNil)
c.Log("path=", path)
bytes, err := ioutil.ReadFile(path)
c.Assert(err, IsNil)
c.Assert(string(bytes), Equals, suite.content)
}
func (suite *TestSuiteTemplate) TestTemplateExecute(c *C) {
// Generate the auth token required by the server.
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
// This is the content to be served by the test server.
suite.template = "My name is {{.Name}} and I am {{.Age}} years old."
// The url is a template too.
url := "http://localhost:{{.port}}/secure"
data := map[string]interface{}{
"Name": "test",
"Age": 20,
"port": suite.port,
}
ctx := ContextPutTemplateData(resource.ContextPutHttpHeader(context.Background(), header), data)
text, err := Execute(ctx, url)
c.Assert(err, IsNil)
c.Log(string(text))
c.Assert(string(text), Equals, "My name is test and I am 20 years old.")
}
func (suite *TestSuiteTemplate) TestTemplateExecuteWithVarBlock(c *C) {
// Write something
url := "zk://" + strings.Join(Hosts(), ",")
zk, err := namespace.Dial(context.Background(), url)
c.Assert(err, IsNil)
c.Log(zk)
k := "/unit-test/registry/template/test-template-execute-vars/PG_PASS"
p := namespace.NewPath(k)
err = zk.Delete(p)
// Write new data
v := []byte("password")
_, err = zk.Put(p, v, false)
c.Assert(err, IsNil)
zk.Close()
// Now use the value in zk in the template
// Generate the auth token required by the server.
token := auth.NewToken(1*time.Hour).Add("secure", 1)
header := http.Header{}
token.SetHeader(header, testutil.PrivateKeyFunc)
// This is the content to be served by the test server.
// Using the Execute will add additional functions that can be included in the var blocks.
suite.template = `
{{define "comments"}}
# The variable define blocks allow the definition of variables that are reused throughout the
# main body of the template. The variables are referenced as '<blockname>.<fieldname>'.
{{end}}
{{define "app"}} # blockname is 'app'
version: 1.2
image: repo
build: 1234
user: "******"USER"}}" # Getting the environment variable and use that as value.
password: "******"zk:///unit-test/registry/template/test-template-execute-vars/PG_PASS" }}"
{{end}}
{{define "host"}}
label: appserver
name: myhost
port: {{.port}} # Here we allow the application to pass in a context that's refereceable.
{{end}}
{
"image" : "repo/myapp:` + "{{my `app.version`}}-{{my `app.build`}}" + `",
"host" : "` + "{{my `host.name`}}" + `",{{/* use this for comment in JSON :) */}}
"user" : "` + "{{my `app.user`}}" + `",
"password" : "` + "{{my `app.password`}}" + `",
"port" : "` + "{{my `host.port`}}" + `"
}`
// The url is a template too.
url = "http://localhost:{{.port}}/secure"
data := map[string]interface{}{
"Name": "test",
"Age": 20,
"port": suite.port,
}
ctx := template.ContextPutTemplateData(resource.ContextPutHttpHeader(context.Background(), header), data)
text, err := template.Execute(ctx, url)
c.Assert(err, IsNil)
c.Log(string(text))
obj := make(map[string]string)
err = json.Unmarshal(text, &obj)
c.Assert(err, IsNil)
c.Assert(obj["image"], Equals, "repo/myapp:1.2-1234")
c.Assert(obj["user"], Equals, os.Getenv("USER"))
c.Assert(obj["host"], Equals, "myhost")
c.Assert(obj["port"], Equals, fmt.Sprintf("%d", suite.port))
c.Assert(obj["password"], Equals, string(v))
}
