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Source file src/net/parse_test.go

Documentation: net

  // Copyright 2009 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  package net
  
  import (
  	"bufio"
  	"os"
  	"runtime"
  	"testing"
  )
  
  func TestReadLine(t *testing.T) {
  	// /etc/services file does not exist on android, plan9, windows.
  	switch runtime.GOOS {
  	case "android", "plan9", "windows":
  		t.Skipf("not supported on %s", runtime.GOOS)
  	}
  	filename := "/etc/services" // a nice big file
  
  	fd, err := os.Open(filename)
  	if err != nil {
  		t.Fatal(err)
  	}
  	defer fd.Close()
  	br := bufio.NewReader(fd)
  
  	file, err := open(filename)
  	if file == nil {
  		t.Fatal(err)
  	}
  	defer file.close()
  
  	lineno := 1
  	byteno := 0
  	for {
  		bline, berr := br.ReadString('\n')
  		if n := len(bline); n > 0 {
  			bline = bline[0 : n-1]
  		}
  		line, ok := file.readLine()
  		if (berr != nil) != !ok || bline != line {
  			t.Fatalf("%s:%d (#%d)\nbufio => %q, %v\nnet => %q, %v", filename, lineno, byteno, bline, berr, line, ok)
  		}
  		if !ok {
  			break
  		}
  		lineno++
  		byteno += len(line) + 1
  	}
  }
  
  func TestGoDebugString(t *testing.T) {
  	defer os.Setenv("GODEBUG", os.Getenv("GODEBUG"))
  	tests := []struct {
  		godebug string
  		key     string
  		want    string
  	}{
  		{"", "foo", ""},
  		{"foo=", "foo", ""},
  		{"foo=bar", "foo", "bar"},
  		{"foo=bar,", "foo", "bar"},
  		{"foo,foo=bar,", "foo", "bar"},
  		{"foo1=bar,foo=bar,", "foo", "bar"},
  		{"foo=bar,foo=bar,", "foo", "bar"},
  		{"foo=", "foo", ""},
  		{"foo", "foo", ""},
  		{",foo", "foo", ""},
  		{"foo=bar,baz", "loooooooong", ""},
  	}
  	for _, tt := range tests {
  		os.Setenv("GODEBUG", tt.godebug)
  		if got := goDebugString(tt.key); got != tt.want {
  			t.Errorf("for %q, goDebugString(%q) = %q; want %q", tt.godebug, tt.key, got, tt.want)
  		}
  	}
  }
  
  func TestDtoi(t *testing.T) {
  	for _, tt := range []struct {
  		in  string
  		out int
  		off int
  		ok  bool
  	}{
  		{"", 0, 0, false},
  		{"0", 0, 1, true},
  		{"65536", 65536, 5, true},
  		{"123456789", big, 8, false},
  		{"-0", 0, 0, false},
  		{"-1234", 0, 0, false},
  	} {
  		n, i, ok := dtoi(tt.in)
  		if n != tt.out || i != tt.off || ok != tt.ok {
  			t.Errorf("got %d, %d, %v; want %d, %d, %v", n, i, ok, tt.out, tt.off, tt.ok)
  		}
  	}
  }
  

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