github.com/cavaliergopher/grab/v3@v3.0.1/grab_test.go (about)

     1  package grab
     2  
     3  import (
     4  	"fmt"
     5  	"io/ioutil"
     6  	"log"
     7  	"os"
     8  	"testing"
     9  
    10  	"github.com/cavaliergopher/grab/v3/pkg/grabtest"
    11  )
    12  
    13  func TestMain(m *testing.M) {
    14  	os.Exit(func() int {
    15  		// chdir to temp so test files downloaded to pwd are isolated and cleaned up
    16  		cwd, err := os.Getwd()
    17  		if err != nil {
    18  			panic(err)
    19  		}
    20  		tmpDir, err := ioutil.TempDir("", "grab-")
    21  		if err != nil {
    22  			panic(err)
    23  		}
    24  		if err := os.Chdir(tmpDir); err != nil {
    25  			panic(err)
    26  		}
    27  		defer func() {
    28  			os.Chdir(cwd)
    29  			if err := os.RemoveAll(tmpDir); err != nil {
    30  				panic(err)
    31  			}
    32  		}()
    33  		return m.Run()
    34  	}())
    35  }
    36  
    37  // TestGet tests grab.Get
    38  func TestGet(t *testing.T) {
    39  	filename := ".testGet"
    40  	defer os.Remove(filename)
    41  	grabtest.WithTestServer(t, func(url string) {
    42  		resp, err := Get(filename, url)
    43  		if err != nil {
    44  			t.Fatalf("error in Get(): %v", err)
    45  		}
    46  		testComplete(t, resp)
    47  	})
    48  }
    49  
    50  func ExampleGet() {
    51  	// download a file to /tmp
    52  	resp, err := Get("/tmp", "http://example.com/example.zip")
    53  	if err != nil {
    54  		log.Fatal(err)
    55  	}
    56  
    57  	fmt.Println("Download saved to", resp.Filename)
    58  }
    59  
    60  func mustNewRequest(dst, urlStr string) *Request {
    61  	req, err := NewRequest(dst, urlStr)
    62  	if err != nil {
    63  		panic(err)
    64  	}
    65  	return req
    66  }
    67  
    68  func mustDo(req *Request) *Response {
    69  	resp := DefaultClient.Do(req)
    70  	if err := resp.Err(); err != nil {
    71  		panic(err)
    72  	}
    73  	return resp
    74  }