From f4912dbb53e00f3aeb34cf26ca6b5d9588ba3533 Mon Sep 17 00:00:00 2001
From: Shulhan <m.shulhan@gmail.com>
Date: Sun, 29 Mar 2020 04:15:44 +0700
Subject: strings: add function SingleSpace

The SingleSpace function convert all sequences of white spaces into
single space ' '.
---
 lib/strings/string_test.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'lib/strings/string_test.go')

diff --git a/lib/strings/string_test.go b/lib/strings/string_test.go
index 7ee0c078..d161dfd7 100644
--- a/lib/strings/string_test.go
+++ b/lib/strings/string_test.go
@@ -117,6 +117,22 @@ func TestReverse(t *testing.T) {
 	}
 }
 
+func TestSingleSpace(t *testing.T) {
+	cases := []struct {
+		in  string
+		exp string
+	}{{
+		in: "",
+	}, {
+		in:  " \t\v\r\n\r\n\fa \t\v\r\n\r\n\f",
+		exp: " a ",
+	}}
+	for _, c := range cases {
+		got := SingleSpace(c.in)
+		test.Assert(t, c.in, c.exp, got, true)
+	}
+}
+
 func TestSplit(t *testing.T) {
 	cases := []struct {
 		text string
-- 
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