github.com/xyproto/u-root@v6.0.1-0.20200302025726-5528e0c77a3c+incompatible/cmds/exp/ash/rush_test.go (about)

     1  // Copyright 2017 the u-root Authors. All rights reserved
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"bytes"
     9  	"fmt"
    10  	"io/ioutil"
    11  	"os"
    12  	"regexp"
    13  	"strings"
    14  	"testing"
    15  
    16  	"github.com/u-root/u-root/pkg/testutil"
    17  )
    18  
    19  var tests = []struct {
    20  	stdin  string // input
    21  	stdout string // output (regular expression)
    22  	stderr string // output (regular expression)
    23  	ret    int    // output
    24  }{
    25  	// TODO: Create a `-c` flag for rush so stdout does not contain
    26  	// prompts, or have the prompt be derived from $PS1.
    27  	{"exit\n", "% ", "", 0},
    28  	{"exit 77\n", "% ", "", 77},
    29  	{"exit 1 2 3\n", "% % ", "Too many arguments\n", 0},
    30  	{"exit abcd\n", "% % ", "Non numeric argument\n", 0},
    31  	{"time cd .\n", "% % ", `real 0.0\d\d\n`, 0},
    32  	{"time sleep 0.25\n", "% % ", `real \d+.\d{3}\nuser \d+.\d{3}\nsys \d+.\d{3}\n`, 0},
    33  }
    34  
    35  func testRush(t *testing.T) {
    36  	// Create temp directory
    37  	tmpDir, err := ioutil.TempDir("", "TestExit")
    38  	if err != nil {
    39  		t.Fatal("TempDir failed: ", err)
    40  	}
    41  	defer os.RemoveAll(tmpDir)
    42  
    43  	// Table-driven testing
    44  	for i, tt := range tests {
    45  		t.Run(fmt.Sprintf("test%d", i), func(t *testing.T) {
    46  			// Run command
    47  			cmd := testutil.Command(t)
    48  			cmd.Stdin = strings.NewReader(tt.stdin)
    49  			var stdout bytes.Buffer
    50  			cmd.Stdout = &stdout
    51  			var stderr bytes.Buffer
    52  			cmd.Stderr = &stderr
    53  			err := cmd.Run()
    54  
    55  			// Check stdout
    56  			strout := string(stdout.Bytes())
    57  			if !regexp.MustCompile("^" + tt.stdout + "$").MatchString(strout) {
    58  				t.Errorf("Want: %#v; Got: %#v", tt.stdout, strout)
    59  			}
    60  
    61  			// Check stderr
    62  			strerr := string(stderr.Bytes())
    63  			if !regexp.MustCompile("^" + tt.stderr + "$").MatchString(strerr) {
    64  				t.Errorf("Want: %#v; Got: %#v", tt.stderr, strerr)
    65  			}
    66  
    67  			// Check return code
    68  			if err := testutil.IsExitCode(err, tt.ret); err != nil {
    69  				t.Error(err)
    70  			}
    71  		})
    72  	}
    73  }
    74  
    75  func TestMain(m *testing.M) {
    76  	testutil.Run(m, main)
    77  }