array unmarshal under/overflow unit tests

make sure the behavior matches that of encoding/json

tests/basic_test.go

@@ -133,3 +133,25 @@ func TestSpecialCases(t *testing.T) {
 		}
 	}
 }
+
+func TestOverflowArray(t *testing.T) {
+	var a Arrays
+	err := easyjson.Unmarshal([]byte(arrayOverflowString), &a)
+	if err != nil {
+		t.Error(err)
+	}
+	if a != arrayValue {
+		t.Errorf("Unmarshal(%v) = %+v; want %+v", arrayOverflowString, a, arrayValue)
+	}
+}
+
+func TestUnderflowArray(t *testing.T) {
+	var a Arrays
+	err := easyjson.Unmarshal([]byte(arrayUnderflowString), &a)
+	if err != nil {
+		t.Error(err)
+	}
+	if a != arrayUnderflowValue {
+		t.Errorf("Unmarshal(%v) = %+v; want %+v", arrayUnderflowString, a, arrayUnderflowValue)
+	}
+}

tests/data.go

@@ -466,6 +466,25 @@ var arrayString = `{` +
 	`"EmptyIntArray":[]` +
 	`}`
 
+var arrayOverflowString = `{` +
+	`"ByteArray":"YWJjbnNk",` +
+	`"EmptyByteArray":"YWJj",` +
+	`"IntArray":[1,2,3,4,5,6],` +
+	`"EmptyIntArray":[7,8]` +
+	`}`
+
+var arrayUnderflowValue = Arrays{
+	ByteArray:      [3]byte{'x', 0, 0},
+	EmptyByteArray: [0]byte{},
+	IntArray:       [5]int{1, 2, 0, 0, 0},
+	EmptyIntArray:  [0]int{},
+}
+
+var arrayUnderflowString = `{` +
+	`"ByteArray":"eA==",` +
+	`"IntArray":[1,2]` +
+	`}`
+
 type Str string
 
 type Maps struct {