many warnings cleaned up

src/qrcode/decoder/data_mask_testcase.rs

@@ -0,0 +1,109 @@
+/*
+ * Copyright 2007 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::BitMatrix;
+
+use super::DataMask;
+
+/**
+ * @author Sean Owen
+ */
+
+type MaskCondition = fn(u32, u32) -> bool;
+
+#[test]
+fn testMask0() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_000, |i, j| ((i + j) % 2 == 0));
+    testMaskAcrossDimensionsU8(0, |i, j| ((i + j) % 2 == 0));
+}
+
+#[test]
+fn testMask1() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_001, |i, _j| i % 2 == 0);
+    testMaskAcrossDimensionsU8(1, |i, _j| i % 2 == 0);
+}
+
+#[test]
+fn testMask2() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_010, |_i, j| j % 3 == 0);
+    testMaskAcrossDimensionsU8(2, |_i, j| j % 3 == 0);
+}
+
+#[test]
+fn testMask3() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_011, |i, j| (i + j) % 3 == 0);
+    testMaskAcrossDimensionsU8(3, |i, j| (i + j) % 3 == 0);
+}
+
+#[test]
+fn testMask4() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_100, |i, j| (i / 2 + j / 3) % 2 == 0);
+    testMaskAcrossDimensionsU8(4, |i, j| (i / 2 + j / 3) % 2 == 0);
+}
+
+#[test]
+fn testMask5() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_101, |i, j| {
+        (i * j) % 2 + (i * j) % 3 == 0
+    });
+    testMaskAcrossDimensionsU8(5, |i, j| (i * j) % 2 + (i * j) % 3 == 0);
+}
+
+#[test]
+fn testMask6() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_110, |i, j| {
+        ((i * j) % 2 + (i * j) % 3) % 2 == 0
+    });
+    testMaskAcrossDimensionsU8(6, |i, j| ((i * j) % 2 + (i * j) % 3) % 2 == 0);
+}
+
+#[test]
+fn testMask7() {
+    testMaskAcrossDimensions(DataMask::DATA_MASK_111, |i, j| {
+        ((i + j) % 2 + (i * j) % 3) % 2 == 0
+    });
+    testMaskAcrossDimensionsU8(7, |i, j| ((i + j) % 2 + (i * j) % 3) % 2 == 0);
+}
+
+fn testMaskAcrossDimensionsU8(mask: u8, condition: MaskCondition) {
+    testMaskAcrossDimensions(mask.try_into().unwrap(), condition)
+}
+
+fn testMaskAcrossDimensions(mask: DataMask, condition: MaskCondition) {
+    // let mask = DataMask.values()[reference];
+    for version in 1..=40 {
+        // for (int version = 1; version <= 40; version++) {
+        let dimension = 17 + 4 * version;
+        testMask(mask, dimension, condition);
+    }
+}
+
+fn testMask(mask: DataMask, dimension: u32, condition: MaskCondition) {
+    let mut bits = BitMatrix::with_single_dimension(dimension);
+    mask.unmaskBitMatrix(&mut bits, dimension);
+    for i in 0..dimension {
+        // for (int i = 0; i < dimension; i++) {
+        for j in 0..dimension {
+            // for (int j = 0; j < dimension; j++) {
+            assert_eq!(condition(i, j), bits.get(j, i), "({},{})", i, j);
+        }
+    }
+}
+
+// @FunctionalInterface
+// private interface MaskCondition {
+//   boolean isMasked(int i, int j);
+// }