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package main
import (
"bytes"
"net/http/httptest"
"os"
"testing"
"text/template"
"github.com/hairyhenderson/gomplate/aws"
"github.com/hairyhenderson/gomplate/conv"
"github.com/hairyhenderson/gomplate/data"
"github.com/hairyhenderson/gomplate/env"
"github.com/stretchr/testify/assert"
)
func testTemplate(g *Gomplate, tmpl string) string {
var out bytes.Buffer
g.RunTemplate(&tplate{name: "testtemplate", contents: tmpl, target: &out})
return out.String()
}
func TestGetenvTemplates(t *testing.T) {
g := &Gomplate{
funcMap: template.FuncMap{
"getenv": env.Getenv,
"bool": conv.Bool,
},
}
assert.Empty(t, testTemplate(g, `{{getenv "BLAHBLAHBLAH"}}`))
assert.Equal(t, os.Getenv("USER"), testTemplate(g, `{{getenv "USER"}}`))
assert.Equal(t, "default value", testTemplate(g, `{{getenv "BLAHBLAHBLAH" "default value"}}`))
}
func TestBoolTemplates(t *testing.T) {
g := &Gomplate{
funcMap: template.FuncMap{
"bool": conv.Bool,
},
}
assert.Equal(t, "true", testTemplate(g, `{{bool "true"}}`))
assert.Equal(t, "false", testTemplate(g, `{{bool "false"}}`))
assert.Equal(t, "false", testTemplate(g, `{{bool "foo"}}`))
assert.Equal(t, "false", testTemplate(g, `{{bool ""}}`))
}
func TestEc2MetaTemplates(t *testing.T) {
createGomplate := func(status int, body string) (*Gomplate, *httptest.Server) {
server, ec2meta := aws.MockServer(status, body)
return &Gomplate{funcMap: template.FuncMap{"ec2meta": ec2meta.Meta}}, server
}
g, s := createGomplate(404, "")
defer s.Close()
assert.Equal(t, "", testTemplate(g, `{{ec2meta "foo"}}`))
assert.Equal(t, "default", testTemplate(g, `{{ec2meta "foo" "default"}}`))
s.Close()
g, s = createGomplate(200, "i-1234")
defer s.Close()
assert.Equal(t, "i-1234", testTemplate(g, `{{ec2meta "instance-id"}}`))
assert.Equal(t, "i-1234", testTemplate(g, `{{ec2meta "instance-id" "default"}}`))
}
func TestEc2MetaTemplates_WithJSON(t *testing.T) {
server, ec2meta := aws.MockServer(200, `{"foo":"bar"}`)
defer server.Close()
g := &Gomplate{
funcMap: template.FuncMap{
"ec2meta": ec2meta.Meta,
"ec2dynamic": ec2meta.Dynamic,
"json": data.JSON,
},
}
assert.Equal(t, "bar", testTemplate(g, `{{ (ec2meta "obj" | json).foo }}`))
assert.Equal(t, "bar", testTemplate(g, `{{ (ec2dynamic "obj" | json).foo }}`))
}
func TestJSONArrayTemplates(t *testing.T) {
g := &Gomplate{
funcMap: template.FuncMap{
"jsonArray": data.JSONArray,
},
}
assert.Equal(t, "[foo bar]", testTemplate(g, `{{jsonArray "[\"foo\",\"bar\"]"}}`))
assert.Equal(t, "bar", testTemplate(g, `{{ index (jsonArray "[\"foo\",\"bar\"]") 1 }}`))
}
func TestYAMLTemplates(t *testing.T) {
g := &Gomplate{
funcMap: template.FuncMap{
"yaml": data.YAML,
"yamlArray": data.YAMLArray,
},
}
assert.Equal(t, "bar", testTemplate(g, `{{(yaml "foo: bar").foo}}`))
assert.Equal(t, "[foo bar]", testTemplate(g, `{{yamlArray "- foo\n- bar\n"}}`))
assert.Equal(t, "bar", testTemplate(g, `{{ index (yamlArray "[\"foo\",\"bar\"]") 1 }}`))
}
func TestSliceTemplates(t *testing.T) {
g := &Gomplate{
funcMap: template.FuncMap{
"slice": conv.Slice,
},
}
assert.Equal(t, "foo", testTemplate(g, `{{index (slice "foo") 0}}`))
assert.Equal(t, `[foo bar 42]`, testTemplate(g, `{{slice "foo" "bar" 42}}`))
assert.Equal(t, `helloworld`, testTemplate(g, `{{range slice "hello" "world"}}{{.}}{{end}}`))
}
func TestHasTemplate(t *testing.T) {
g := &Gomplate{
funcMap: template.FuncMap{
"yaml": data.YAML,
"has": conv.Has,
},
}
assert.Equal(t, "true", testTemplate(g, `{{has ("foo:\n bar: true" | yaml) "foo"}}`))
assert.Equal(t, "true", testTemplate(g, `{{has ("foo:\n bar: true" | yaml).foo "bar"}}`))
assert.Equal(t, "false", testTemplate(g, `{{has ("foo: true" | yaml) "bah"}}`))
tmpl := `{{- $data := yaml "foo: bar\nbaz: qux\n" }}
{{- if (has $data "baz") }}
{{- $data.baz }}
{{- end }}`
assert.Equal(t, "qux", testTemplate(g, tmpl))
tmpl = `{{- $data := yaml "foo: bar\nbaz: qux\n" }}
{{- if (has $data "quux") }}
{{- $data.quux }}
{{- else }}
{{- $data.foo }}
{{- end }}`
assert.Equal(t, "bar", testTemplate(g, tmpl))
}
func TestCustomDelim(t *testing.T) {
g := &Gomplate{
leftDelim: "[",
rightDelim: "]",
funcMap: template.FuncMap{},
}
assert.Equal(t, "hi", testTemplate(g, `[print "hi"]`))
}
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