Rewrite simple test (only grpc output)

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

@@ -0,0 +1,100 @@
+// Copyright 2015 Huan Du. All rights reserved.
+// Licensed under the MIT license that can be found in the LICENSE file.
+
+package xstrings
+
+import (
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func TestExpandTabs(t *testing.T) {
+	runner := func(str string) (result string) {
+		defer func() {
+			if e := recover(); e != nil {
+				result = e.(string)
+			}
+		}()
+
+		input := strings.Split(str, separator)
+		n, _ := strconv.Atoi(input[1])
+		return ExpandTabs(input[0], n)
+	}
+
+	runTestCases(t, runner, _M{
+		sep("a\tbc\tdef\tghij\tk", "4"): "a   bc  def ghij    k",
+		sep("abcdefg\thij\nk\tl", "4"):  "abcdefg hij\nk   l",
+		sep("z中\t文\tw", "4"):            "z中 文  w",
+		sep("abcdef", "4"):              "abcdef",
+
+		sep("abc\td\tef\tghij\nk\tl", "3"): "abc   d  ef ghij\nk  l",
+		sep("abc\td\tef\tghij\nk\tl", "1"): "abc d ef ghij\nk l",
+
+		sep("abc", "0"):  "tab size must be positive",
+		sep("abc", "-1"): "tab size must be positive",
+	})
+}
+
+func TestLeftJustify(t *testing.T) {
+	runner := func(str string) string {
+		input := strings.Split(str, separator)
+		n, _ := strconv.Atoi(input[1])
+		return LeftJustify(input[0], n, input[2])
+	}
+
+	runTestCases(t, runner, _M{
+		sep("hello", "4", " "):    "hello",
+		sep("hello", "10", " "):   "hello     ",
+		sep("hello", "10", "123"): "hello12312",
+
+		sep("hello中文test", "4", " "):    "hello中文test",
+		sep("hello中文test", "12", " "):   "hello中文test ",
+		sep("hello中文test", "18", "测试！"): "hello中文test测试！测试！测",
+
+		sep("hello中文test", "0", "123"): "hello中文test",
+		sep("hello中文test", "18", ""):   "hello中文test",
+	})
+}
+
+func TestRightJustify(t *testing.T) {
+	runner := func(str string) string {
+		input := strings.Split(str, separator)
+		n, _ := strconv.Atoi(input[1])
+		return RightJustify(input[0], n, input[2])
+	}
+
+	runTestCases(t, runner, _M{
+		sep("hello", "4", " "):    "hello",
+		sep("hello", "10", " "):   "     hello",
+		sep("hello", "10", "123"): "12312hello",
+
+		sep("hello中文test", "4", " "):    "hello中文test",
+		sep("hello中文test", "12", " "):   " hello中文test",
+		sep("hello中文test", "18", "测试！"): "测试！测试！测hello中文test",
+
+		sep("hello中文test", "0", "123"): "hello中文test",
+		sep("hello中文test", "18", ""):   "hello中文test",
+	})
+}
+
+func TestCenter(t *testing.T) {
+	runner := func(str string) string {
+		input := strings.Split(str, separator)
+		n, _ := strconv.Atoi(input[1])
+		return Center(input[0], n, input[2])
+	}
+
+	runTestCases(t, runner, _M{
+		sep("hello", "4", " "):    "hello",
+		sep("hello", "10", " "):   "  hello   ",
+		sep("hello", "10", "123"): "12hello123",
+
+		sep("hello中文test", "4", " "):    "hello中文test",
+		sep("hello中文test", "12", " "):   "hello中文test ",
+		sep("hello中文test", "18", "测试！"): "测试！hello中文test测试！测",
+
+		sep("hello中文test", "0", "123"): "hello中文test",
+		sep("hello中文test", "18", ""):   "hello中文test",
+	})
+}