update vendor

vendor/github.com/qiniu/x/cmdline.v7/escape_test.go

@@ -0,0 +1,41 @@
+package cmdline
+
+import (
+	"testing"
+)
+
+// ---------------------------------------------------------------------------
+
+func TestEscape(t *testing.T) {
+
+	for i := 0; i < escTableBaseChar; i++ {
+		checkEscapeChar(t, i, i)
+	}
+
+	table := make([]int, escTableLen)
+	for i := 0; i < escTableLen; i++ {
+		table[i] = escTableBaseChar + i
+	}
+	table['0'-escTableBaseChar] = 0
+	table['r'-escTableBaseChar] = '\r'
+	table['t'-escTableBaseChar] = '\t'
+	table['n'-escTableBaseChar] = '\n'
+	for i := 0; i < escTableLen; i++ {
+		checkEscapeChar(t, escTableBaseChar+i, table[i])
+	}
+
+	for i := int(escTableBaseChar + escTableLen); i < 256; i++ {
+		checkEscapeChar(t, i, i)
+	}
+}
+
+func checkEscapeChar(t *testing.T, i, exp int) {
+
+	ret := defaultEscape(byte(i))
+	if ret != string(exp) {
+		t.Fatal("escapeChar failed:", i)
+	}
+}
+
+// ---------------------------------------------------------------------------
+