Rewrite simple test (only grpc output)

vendor/github.com/huandu/xstrings/count_test.go

@@ -0,0 +1,62 @@
+// Copyright 2015 Huan Du. All rights reserved.
+// Licensed under the MIT license that can be found in the LICENSE file.
+
+package xstrings
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestLen(t *testing.T) {
+	runner := func(str string) string {
+		return fmt.Sprint(Len(str))
+	}
+
+	runTestCases(t, runner, _M{
+		"abcdef":    "6",
+		"中文":        "2",
+		"中yin文hun排": "9",
+		"":          "0",
+	})
+}
+
+func TestWordCount(t *testing.T) {
+	runner := func(str string) string {
+		return fmt.Sprint(WordCount(str))
+	}
+
+	runTestCases(t, runner, _M{
+		"one word: λ":             "3",
+		"中文":                      "0",
+		"你好，sekai！":               "1",
+		"oh, it's super-fancy!!a": "4",
+		"":        "0",
+		"-":       "0",
+		"it's-'s": "1",
+	})
+}
+
+func TestWidth(t *testing.T) {
+	runner := func(str string) string {
+		return fmt.Sprint(Width(str))
+	}
+
+	runTestCases(t, runner, _M{
+		"abcd\t0123\n7890": "12",
+		"中zh英eng文混排":       "15",
+		"": "0",
+	})
+}
+
+func TestRuneWidth(t *testing.T) {
+	runner := func(str string) string {
+		return fmt.Sprint(RuneWidth([]rune(str)[0]))
+	}
+
+	runTestCases(t, runner, _M{
+		"a":    "1",
+		"中":    "2",
+		"\x11": "0",
+	})
+}