github.com/btcsuite/btcd@v0.24.0/config_test.go (about)

     1  package main
     2  
     3  import (
     4  	"io/ioutil"
     5  	"os"
     6  	"path/filepath"
     7  	"regexp"
     8  	"runtime"
     9  	"testing"
    10  )
    11  
    12  var (
    13  	rpcuserRegexp = regexp.MustCompile("(?m)^rpcuser=.+$")
    14  	rpcpassRegexp = regexp.MustCompile("(?m)^rpcpass=.+$")
    15  )
    16  
    17  func TestCreateDefaultConfigFile(t *testing.T) {
    18  	// find out where the sample config lives
    19  	_, path, _, ok := runtime.Caller(0)
    20  	if !ok {
    21  		t.Fatalf("Failed finding config file path")
    22  	}
    23  	sampleConfigFile := filepath.Join(filepath.Dir(path), "sample-btcd.conf")
    24  
    25  	// Setup a temporary directory
    26  	tmpDir, err := ioutil.TempDir("", "btcd")
    27  	if err != nil {
    28  		t.Fatalf("Failed creating a temporary directory: %v", err)
    29  	}
    30  	testpath := filepath.Join(tmpDir, "test.conf")
    31  
    32  	// copy config file to location of btcd binary
    33  	data, err := ioutil.ReadFile(sampleConfigFile)
    34  	if err != nil {
    35  		t.Fatalf("Failed reading sample config file: %v", err)
    36  	}
    37  	appPath, err := filepath.Abs(filepath.Dir(os.Args[0]))
    38  	if err != nil {
    39  		t.Fatalf("Failed obtaining app path: %v", err)
    40  	}
    41  	tmpConfigFile := filepath.Join(appPath, "sample-btcd.conf")
    42  	err = ioutil.WriteFile(tmpConfigFile, data, 0644)
    43  	if err != nil {
    44  		t.Fatalf("Failed copying sample config file: %v", err)
    45  	}
    46  
    47  	// Clean-up
    48  	defer func() {
    49  		os.Remove(testpath)
    50  		os.Remove(tmpConfigFile)
    51  		os.Remove(tmpDir)
    52  	}()
    53  
    54  	err = createDefaultConfigFile(testpath)
    55  
    56  	if err != nil {
    57  		t.Fatalf("Failed to create a default config file: %v", err)
    58  	}
    59  
    60  	content, err := ioutil.ReadFile(testpath)
    61  	if err != nil {
    62  		t.Fatalf("Failed to read generated default config file: %v", err)
    63  	}
    64  
    65  	if !rpcuserRegexp.Match(content) {
    66  		t.Error("Could not find rpcuser in generated default config file.")
    67  	}
    68  
    69  	if !rpcpassRegexp.Match(content) {
    70  		t.Error("Could not find rpcpass in generated default config file.")
    71  	}
    72  }