/
gofetch_test.go
228 lines (187 loc) · 5.93 KB
/
gofetch_test.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, version 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package gofetch
import (
"crypto/sha512"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"path"
"path/filepath"
"testing"
"time"
"github.com/hooklift/assert"
"github.com/mitchellh/go-homedir"
)
func TestFetchWithoutContentLength(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
return
}
file, err := os.Open("./fixtures/test")
assert.Ok(t, err)
assert.Cond(t, file != nil, "Failed loading fixture file")
defer file.Close()
_, err = io.Copy(w, file)
assert.Ok(t, err)
}))
defer ts.Close()
progressCh := make(chan ProgressReport)
done := make(chan bool)
destDir, err := ioutil.TempDir(os.TempDir(), "no-content-length")
assert.Ok(t, err)
defer os.RemoveAll(destDir)
gf := New(WithDestDir(destDir))
go func() {
_, err := gf.Fetch(ts.URL, progressCh)
assert.Ok(t, err)
done <- true
}()
var total int64
for p := range progressCh {
total += p.WrittenBytes
assert.Equals(t, int64(-1), p.Total)
}
assert.Equals(t, int64(10485760), total)
<-done
// Now we can close the test server and let the deferred function to run.
}
func TestFetchWithContentLength(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
file, err := os.Open("./fixtures/test")
assert.Ok(t, err)
assert.Cond(t, file != nil, "Failed loading fixture file")
defer file.Close()
http.ServeContent(w, r, file.Name(), time.Time{}, file)
}))
defer ts.Close()
progressCh := make(chan ProgressReport)
done := make(chan bool)
destDir, err := ioutil.TempDir(os.TempDir(), "content-length")
assert.Ok(t, err)
defer os.RemoveAll(destDir)
gf := New(WithDestDir(destDir), WithConcurrency(50))
go func() {
_, err := gf.Fetch(ts.URL, progressCh)
assert.Ok(t, err)
done <- true
}()
var total int64
for p := range progressCh {
//fmt.Printf("\r%d of %d", p.WrittenBytes, p.Total)
total += p.WrittenBytes
}
assert.Equals(t, int64(10485760), total)
<-done
}
func TestResume(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
file, err := os.Open("./fixtures/test")
assert.Ok(t, err)
assert.Cond(t, file != nil, "Failed loading fixture file")
defer file.Close()
http.ServeContent(w, r, file.Name(), time.Time{}, file)
}))
defer ts.Close()
destDir, err := ioutil.TempDir(os.TempDir(), "resume")
assert.Ok(t, err)
defer os.RemoveAll(destDir)
chunksDir := filepath.Join(destDir, path.Base(ts.URL)+".chunks")
err = os.MkdirAll(chunksDir, 0760)
assert.Ok(t, err)
fixtureFile, err := os.Open("./fixtures/test-resume")
assert.Ok(t, err)
chunkFile, err := os.Create(filepath.Join(chunksDir, "0"))
assert.Ok(t, err)
_, err = io.Copy(chunkFile, fixtureFile)
assert.Ok(t, err)
fixtureFile.Close()
chunkFile.Close()
done := make(chan bool)
progressCh := make(chan ProgressReport)
var file *os.File
gf := New(WithDestDir(destDir), WithConcurrency(1))
go func() {
var err error
file, err = gf.Fetch(ts.URL, progressCh)
assert.Ok(t, err)
done <- true
}()
var total int64
for p := range progressCh {
//fmt.Printf("\r%d of %d", p.WrittenBytes, p.Total)
total += p.WrittenBytes
}
// It should report the complete file size through the channel
assert.Equals(t, int64(10485760), total)
<-done
// Fetch finished and we can now use the file without causing data races.
// Checks that the downloaded file has the same size as the test fixture
fi, err := file.Stat()
assert.Ok(t, err)
defer file.Close()
assert.Equals(t, int64(10485760), fi.Size())
// Checks file integrity
hasher := sha512.New()
_, err = io.Copy(hasher, file)
assert.Ok(t, err)
result := fmt.Sprintf("%x", hasher.Sum(nil))
assert.Equals(t, "4ff6e159db38d46a665f26e9f82b98134238c0457cc82727a5258b7184773e4967068cc0eecf3928ecd079f3aea6e22aac024847c6d76c0329c4635c4b6ae327", result)
file.Close()
}
func TestEtagSupport(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
file, err := os.Open("./fixtures/test")
assert.Ok(t, err)
assert.Cond(t, file != nil, "Failed loading fixture file")
defer file.Close()
w.Header().Add("Etag", "7h153746154w350m3")
http.ServeContent(w, r, file.Name(), time.Time{}, file)
}))
defer ts.Close()
destDir, err := ioutil.TempDir(os.TempDir(), "etag")
assert.Ok(t, err)
defer os.RemoveAll(destDir)
gf := New(WithDestDir(destDir), WithConcurrency(1), WithETag())
// Fetches file for the first tim
_, err = gf.Fetch(ts.URL+"/test", nil)
assert.Ok(t, err)
progressCh := make(chan ProgressReport)
go func() {
// Attempts to fetch file once again.
_, err := gf.Fetch(ts.URL+"/test", progressCh)
assert.Ok(t, err)
}()
var progressCount int
for range progressCh {
progressCount++
}
// Since the file was already downloaded, there shouldn't be any download
// progress reported.
assert.Equals(t, 0, progressCount)
// Cleans up ~/.gofetch work dir
dir, err := homedir.Dir()
assert.Ok(t, err)
err = os.RemoveAll(filepath.Join(dir, ".gofetch"))
assert.Ok(t, err)
}
func TestWithChecksum(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
file, err := os.Open("./fixtures/test")
assert.Ok(t, err)
assert.Cond(t, file != nil, "Failed loading fixture file")
defer file.Close()
http.ServeContent(w, r, file.Name(), time.Time{}, file)
}))
defer ts.Close()
destDir, err := ioutil.TempDir(os.TempDir(), "checksum-test")
assert.Ok(t, err)
defer os.RemoveAll(destDir)
gf := New(WithDestDir(destDir), WithChecksum("sha512", "4ff6e159db38d46a665f26e9f82b98134238c0457cc82727a5258b7184773e4967068cc0eecf3928ecd079f3aea6e22aac024847c6d76c0329c4635c4b6ae327"))
_, err = gf.Fetch(ts.URL+"/test", nil)
assert.Ok(t, err)
}