Begin porting qrcode

src/qrcode/decoder/ErrorCorrectionLevelTestCase.rs

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2008 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use crate::qrcode::decoder::ErrorCorrectionLevel;
+
+/**
+ * @author Sean Owen
+ */
+
+#[test]
+fn testForBits() {
+    assert_eq!(
+        ErrorCorrectionLevel::M,
+        ErrorCorrectionLevel::forBits(0).unwrap()
+    );
+    assert_eq!(
+        ErrorCorrectionLevel::L,
+        ErrorCorrectionLevel::forBits(1).unwrap()
+    );
+    assert_eq!(
+        ErrorCorrectionLevel::H,
+        ErrorCorrectionLevel::forBits(2).unwrap()
+    );
+    assert_eq!(
+        ErrorCorrectionLevel::Q,
+        ErrorCorrectionLevel::forBits(3).unwrap()
+    );
+}
+
+#[test]
+#[should_panic]
+fn testBadECLevel() {
+    assert!(ErrorCorrectionLevel::forBits(4).is_ok());
+}