Update coders with error return values

encoding/ascii_test.go

@@ -11,7 +11,11 @@ func TestASCIIEncodeSimpleASCIIString(t *testing.T) {
 	input := "Hello, World!"
 
 	expected := []byte{72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33}
-	coder.Encode(input, &buf)
+	err := coder.Encode(input, &buf)
+
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
 
 	if !bytes.Equal(buf.Bytes(), expected) {
 		t.Errorf("Expected %v, but got %v", expected, buf.Bytes())
@@ -25,7 +29,11 @@ func TestASCIIDecodeSimpleASCIIString(t *testing.T) {
 
 	expected := "Hello, World!"
 	buf.Write(input)
-	output := coder.Decode(&buf)
+	output, err := coder.Decode(&buf)
+
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
 
 	if output != expected {
 		t.Errorf("Expected %v, but got %v", expected, output)
@@ -38,7 +46,11 @@ func TestASCIIEncodeEmptyString(t *testing.T) {
 	input := ""
 
 	expected := []byte{}
-	coder.Encode(input, &buf)
+	err := coder.Encode(input, &buf)
+
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
 
 	if !bytes.Equal(buf.Bytes(), expected) {
 		t.Errorf("Expected %v, but got %v", expected, buf.Bytes())
@@ -50,7 +62,11 @@ func TestASCIIDecodeEmptyString(t *testing.T) {
 	buf := bytes.NewBuffer([]byte{})
 
 	expected := ""
-	output := coder.Decode(buf)
+	output, err := coder.Decode(buf)
+
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
 
 	if output != expected {
 		t.Errorf("Expected %v, but got %v", expected, output)