First commit

vendor/github.com/tdewolff/parse/buffer/reader_test.go

@@ -0,0 +1,49 @@
+package buffer // import "github.com/tdewolff/parse/buffer"
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"testing"
+
+	"github.com/tdewolff/test"
+)
+
+func TestReader(t *testing.T) {
+	s := []byte("abcde")
+	r := NewReader(s)
+	test.Bytes(t, r.Bytes(), s, "reader must return bytes stored")
+
+	buf := make([]byte, 3)
+	n, err := r.Read(buf)
+	test.T(t, err, nil, "error")
+	test.That(t, n == 3, "first read must read 3 characters")
+	test.Bytes(t, buf, []byte("abc"), "first read must match 'abc'")
+
+	n, err = r.Read(buf)
+	test.T(t, err, nil, "error")
+	test.That(t, n == 2, "second read must read 2 characters")
+	test.Bytes(t, buf[:n], []byte("de"), "second read must match 'de'")
+
+	n, err = r.Read(buf)
+	test.T(t, err, io.EOF, "error")
+	test.That(t, n == 0, "third read must read 0 characters")
+
+	n, err = r.Read(nil)
+	test.T(t, err, nil, "error")
+	test.That(t, n == 0, "read to nil buffer must return 0 characters read")
+
+	r.Reset()
+	n, err = r.Read(buf)
+	test.T(t, err, nil, "error")
+	test.That(t, n == 3, "read after reset must read 3 characters")
+	test.Bytes(t, buf, []byte("abc"), "read after reset must match 'abc'")
+}
+
+func ExampleNewReader() {
+	r := NewReader([]byte("Lorem ipsum"))
+	w := &bytes.Buffer{}
+	io.Copy(w, r)
+	fmt.Println(w.String())
+	// Output: Lorem ipsum
+}