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[bytom/vapor.git] / vendor / github.com / spf13 / pflag / ipnet_test.go
diff --git a/vendor/github.com/spf13/pflag/ipnet_test.go b/vendor/github.com/spf13/pflag/ipnet_test.go
new file mode 100644 (file)
index 0000000..335b6fa
--- /dev/null
@@ -0,0 +1,70 @@
+package pflag
+
+import (
+       "fmt"
+       "net"
+       "os"
+       "testing"
+)
+
+func setUpIPNet(ip *net.IPNet) *FlagSet {
+       f := NewFlagSet("test", ContinueOnError)
+       _, def, _ := net.ParseCIDR("0.0.0.0/0")
+       f.IPNetVar(ip, "address", *def, "IP Address")
+       return f
+}
+
+func TestIPNet(t *testing.T) {
+       testCases := []struct {
+               input    string
+               success  bool
+               expected string
+       }{
+               {"0.0.0.0/0", true, "0.0.0.0/0"},
+               {" 0.0.0.0/0 ", true, "0.0.0.0/0"},
+               {"1.2.3.4/8", true, "1.0.0.0/8"},
+               {"127.0.0.1/16", true, "127.0.0.0/16"},
+               {"255.255.255.255/19", true, "255.255.224.0/19"},
+               {"255.255.255.255/32", true, "255.255.255.255/32"},
+               {"", false, ""},
+               {"/0", false, ""},
+               {"0", false, ""},
+               {"0/0", false, ""},
+               {"localhost/0", false, ""},
+               {"0.0.0/4", false, ""},
+               {"0.0.0./8", false, ""},
+               {"0.0.0.0./12", false, ""},
+               {"0.0.0.256/16", false, ""},
+               {"0.0.0.0 /20", false, ""},
+               {"0.0.0.0/ 24", false, ""},
+               {"0 . 0 . 0 . 0 / 28", false, ""},
+               {"0.0.0.0/33", false, ""},
+       }
+
+       devnull, _ := os.Open(os.DevNull)
+       os.Stderr = devnull
+       for i := range testCases {
+               var addr net.IPNet
+               f := setUpIPNet(&addr)
+
+               tc := &testCases[i]
+
+               arg := fmt.Sprintf("--address=%s", tc.input)
+               err := f.Parse([]string{arg})
+               if err != nil && tc.success == true {
+                       t.Errorf("expected success, got %q", err)
+                       continue
+               } else if err == nil && tc.success == false {
+                       t.Errorf("expected failure")
+                       continue
+               } else if tc.success {
+                       ip, err := f.GetIPNet("address")
+                       if err != nil {
+                               t.Errorf("Got error trying to fetch the IP flag: %v", err)
+                       }
+                       if ip.String() != tc.expected {
+                               t.Errorf("expected %q, got %q", tc.expected, ip.String())
+                       }
+               }
+       }
+}