many warnings cleaned up

src/qrcode/encoder/bit_vector_testcase.rs

@@ -0,0 +1,175 @@
+/*
+ * 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::common::BitArray;
+
+/**
+ * @author satorux@google.com (Satoru Takabayashi) - creator
+ * @author dswitkin@google.com (Daniel Switkin) - ported from C++
+ */
+
+fn getUnsignedInt(v: &BitArray) -> u64 {
+    let mut result = 0u64;
+    const OFFSET: usize = 0;
+    for i in 0..32 {
+        // for (int i = 0, offset = 0; i < 32; i++) {
+        if v.get(OFFSET + i) {
+            result |= 1 << (31 - i);
+        }
+    }
+    result
+}
+
+#[test]
+fn testAppendBit() {
+    let mut v = BitArray::new();
+    assert_eq!(0, v.getSizeInBytes());
+    // 1
+    v.appendBit(true);
+    assert_eq!(1, v.getSize());
+    assert_eq!(0x80000000, getUnsignedInt(&v));
+    // 10
+    v.appendBit(false);
+    assert_eq!(2, v.getSize());
+    assert_eq!(0x80000000, getUnsignedInt(&v));
+    // 101
+    v.appendBit(true);
+    assert_eq!(3, v.getSize());
+    assert_eq!(0xa0000000, getUnsignedInt(&v));
+    // 1010
+    v.appendBit(false);
+    assert_eq!(4, v.getSize());
+    assert_eq!(0xa0000000, getUnsignedInt(&v));
+    // 10101
+    v.appendBit(true);
+    assert_eq!(5, v.getSize());
+    assert_eq!(0xa8000000, getUnsignedInt(&v));
+    // 101010
+    v.appendBit(false);
+    assert_eq!(6, v.getSize());
+    assert_eq!(0xa8000000, getUnsignedInt(&v));
+    // 1010101
+    v.appendBit(true);
+    assert_eq!(7, v.getSize());
+    assert_eq!(0xaa000000, getUnsignedInt(&v));
+    // 10101010
+    v.appendBit(false);
+    assert_eq!(8, v.getSize());
+    assert_eq!(0xaa000000, getUnsignedInt(&v));
+    // 10101010 1
+    v.appendBit(true);
+    assert_eq!(9, v.getSize());
+    assert_eq!(0xaa800000, getUnsignedInt(&v));
+    // 10101010 10
+    v.appendBit(false);
+    assert_eq!(10, v.getSize());
+    assert_eq!(0xaa800000, getUnsignedInt(&v));
+}
+
+#[test]
+fn testAppendBits() {
+    let mut v = BitArray::new();
+    v.appendBits(0x1, 1).expect("append");
+    assert_eq!(1, v.getSize());
+    assert_eq!(0x80000000, getUnsignedInt(&v));
+    let mut v = BitArray::new();
+    v.appendBits(0xff, 8).expect("append");
+    assert_eq!(8, v.getSize());
+    assert_eq!(0xff000000, getUnsignedInt(&v));
+    let mut v = BitArray::new();
+    v.appendBits(0xff7, 12).expect("append");
+    assert_eq!(12, v.getSize());
+    assert_eq!(0xff700000, getUnsignedInt(&v));
+}
+
+#[test]
+fn testNumBytes() {
+    let mut v = BitArray::new();
+    assert_eq!(0, v.getSizeInBytes());
+    v.appendBit(false);
+    // 1 bit was added in the vector, so 1 byte should be consumed.
+    assert_eq!(1, v.getSizeInBytes());
+    v.appendBits(0, 7).expect("append");
+    assert_eq!(1, v.getSizeInBytes());
+    v.appendBits(0, 8).expect("append");
+    assert_eq!(2, v.getSizeInBytes());
+    v.appendBits(0, 1).expect("append");
+    // We now have 17 bits, so 3 bytes should be consumed.
+    assert_eq!(3, v.getSizeInBytes());
+}
+
+#[test]
+fn testAppendBitVector() {
+    let mut v1 = BitArray::new();
+    v1.appendBits(0xbe, 8).expect("append");
+    let mut v2 = BitArray::new();
+    v2.appendBits(0xef, 8).expect("append");
+    v1.appendBitArray(v2);
+    // beef = 1011 1110 1110 1111
+    assert_eq!(" X.XXXXX. XXX.XXXX", v1.to_string());
+}
+
+#[test]
+fn testXOR() {
+    let mut v1 = BitArray::new();
+    v1.appendBits(0x5555aaaa, 32).expect("append");
+    let mut v2 = BitArray::new();
+    v2.appendBits(0xaaaa5555, 32).expect("append");
+    v1.xor(&v2).expect("xor");
+    assert_eq!(0xffffffff, getUnsignedInt(&v1));
+}
+
+#[test]
+fn testXOR2() {
+    let mut v1 = BitArray::new();
+    v1.appendBits(0x2a, 7).expect("append"); // 010 1010
+    let mut v2 = BitArray::new();
+    v2.appendBits(0x55, 7).expect("append"); // 101 0101
+    v1.xor(&v2).expect("xor");
+    assert_eq!(0xfe000000, getUnsignedInt(&v1)); // 1111 1110
+}
+
+#[test]
+fn testAt() {
+    let mut v = BitArray::new();
+    v.appendBits(0xdead, 16).expect("append"); // 1101 1110 1010 1101
+    assert!(v.get(0));
+    assert!(v.get(1));
+    assert!(!v.get(2));
+    assert!(v.get(3));
+
+    assert!(v.get(4));
+    assert!(v.get(5));
+    assert!(v.get(6));
+    assert!(!v.get(7));
+
+    assert!(v.get(8));
+    assert!(!v.get(9));
+    assert!(v.get(10));
+    assert!(!v.get(11));
+
+    assert!(v.get(12));
+    assert!(v.get(13));
+    assert!(!v.get(14));
+    assert!(v.get(15));
+}
+
+#[test]
+fn testToString() {
+    let mut v = BitArray::new();
+    v.appendBits(0xdead, 16).expect("append"); // 1101 1110 1010 1101
+    assert_eq!(" XX.XXXX. X.X.XX.X", v.to_string());
+}