reencode: Implement CompactIfUnder

1 files changed, 36 insertions, 0 deletions

diff --git a/reencode_test.go b/reencode_test.go
new file mode 100644
index 0000000..5fe66db
--- /dev/null
+++ b/reencode_test.go
@@ -0,0 +1,36 @@
+// Copyright (C) 2022  Luke Shumaker <lukeshu@lukeshu.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package lowmemjson
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestReEncodeCompactIfUnder(t *testing.T) {
+	var out strings.Builder
+	enc := NewEncoder(&ReEncoder{
+		Out:                 &out,
+		AllowMultipleValues: true,
+		Indent:              "\t",
+		CompactIfUnder:      10,
+	})
+
+	obj := map[string][]string{
+		"a": []string{"b", "c"},
+		"d": []string{"eeeeeeeeeeeeeee"},
+	}
+
+	assert.NoError(t, enc.Encode(obj))
+	exp := `{
+	"a": ["b","c"],
+	"d": [
+		"eeeeeeeeeeeeeee"
+	]
+}`
+	assert.Equal(t, exp, out.String())
+}