fs_test.go

//go:build go1.16
// +build go1.16

package render

import (
	"net/http"
	"net/http/httptest"
	"os"
	"testing"
)

func TestIOFSEmbedTemplateLookup(t *testing.T) {
	baseDir := "testdata/template-dir-test"
	fname0Rel := "0"
	fname1Rel := "subdir/1"
	fnameShouldParsedRel := "dedicated.tmpl/notbad"
	dirShouldNotParsedRel := "dedicated"

	r := New(Options{
		Directory:  baseDir,
		Extensions: []string{".tmpl", ".html"},
		FileSystem: FS(EmbedFixtures),
	})

	expect(t, r.TemplateLookup(fname1Rel) != nil, true)
	expect(t, r.TemplateLookup(fname0Rel) != nil, true)
	expect(t, r.TemplateLookup(fnameShouldParsedRel) != nil, true)
	expect(t, r.TemplateLookup(dirShouldNotParsedRel) == nil, true)
}

func TestIOFSDirTemplateLookup(t *testing.T) {
	baseDir := "testdata/template-dir-test"
	fname0Rel := "0"
	fname1Rel := "subdir/1"
	fnameShouldParsedRel := "dedicated.tmpl/notbad"
	dirShouldNotParsedRel := "dedicated"

	r := New(Options{
		Directory:  ".",
		Extensions: []string{".tmpl", ".html"},
		FileSystem: FS(os.DirFS(baseDir)),
	})

	expect(t, r.TemplateLookup(fname1Rel) != nil, true)
	expect(t, r.TemplateLookup(fname0Rel) != nil, true)
	expect(t, r.TemplateLookup(fnameShouldParsedRel) != nil, true)
	expect(t, r.TemplateLookup(dirShouldNotParsedRel) == nil, true)
}

func TestIOFSEmbedHTMLBasic(t *testing.T) {
	render := New(Options{
		Directory:  "testdata/basic",
		FileSystem: FS(EmbedFixtures),
	})

	var err error

	h := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
		err = render.HTML(w, http.StatusOK, "hello", "gophers")
	})

	res := httptest.NewRecorder()
	req, _ := http.NewRequestWithContext(ctx, http.MethodGet, "/foo", nil)
	h.ServeHTTP(res, req)

	expectNil(t, err)
	expect(t, res.Code, 200)
	expect(t, res.Header().Get(ContentType), ContentHTML+"; charset=UTF-8")
	expect(t, res.Body.String(), "<h1>Hello gophers</h1>\n")
}

func TestIOFSDirHTMLBasic(t *testing.T) {
	render := New(Options{
		Directory:  ".",
		FileSystem: FS(os.DirFS("testdata/basic")),
	})

	var err error

	h := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
		err = render.HTML(w, http.StatusOK, "hello", "gophers")
	})

	res := httptest.NewRecorder()
	req, _ := http.NewRequestWithContext(ctx, http.MethodGet, "/foo", nil)
	h.ServeHTTP(res, req)

	expectNil(t, err)
	expect(t, res.Code, 200)
	expect(t, res.Header().Get(ContentType), ContentHTML+"; charset=UTF-8")
	expect(t, res.Body.String(), "<h1>Hello gophers</h1>\n")
}