diff --git a/src/oned/Code93ReaderTestCase.java b/src/oned/Code93ReaderTestCase.java
deleted file mode 100644
index ae5ef31..0000000
--- a/src/oned/Code93ReaderTestCase.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright 2018 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.
- */
-
-package com.google.zxing.oned;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-import com.google.zxing.common.BitMatrix;
-import com.google.zxing.common.BitArray;
-import com.google.zxing.ChecksumException;
-import com.google.zxing.FormatException;
-import com.google.zxing.NotFoundException;
-import com.google.zxing.RXingResult;
-
-/**
- * @author Daisuke Makiuchi
- */
-public final class Code93ReaderTestCase extends Assert {
-
-  @SuppressWarnings("checkstyle:lineLength")
-  @Test
-  public void testDecode() throws FormatException, ChecksumException, NotFoundException {
-    doTest("Code93!\n$%/+ :\u001b;[{\u007f\u0000@`\u007f\u007f\u007f",
-           "0000001010111101101000101001100101001011001001100101100101001001100101100100101000010101010000101110101101101010001001001101001101001110010101101011101011011101011101101110100101110101101001110101110110101101010001110110101100010101110110101000110101110110101000101101110110101101001101110110101100101101110110101100110101110110101011011001110110101011001101110110101001101101110110101001110101001100101101010001010111101111");
-  }
-
-  private static void doTest(String expectedRXingResult, String encodedRXingResult)
-      throws FormatException, ChecksumException, NotFoundException {
-    Code93Reader sut = new Code93Reader();
-    BitMatrix matrix = BitMatrix.parse(encodedRXingResult, "1", "0");
-    BitArray row = new BitArray(matrix.getWidth());
-    matrix.getRow(0, row);
-    RXingResult result = sut.decodeRow(0, row, null);
-    assertEquals(expectedRXingResult, result.getText());
-  }
-
-}
diff --git a/src/oned/code_93_reader.rs b/src/oned/code_93_reader.rs
index 90e5b2a..8df2747 100644
--- a/src/oned/code_93_reader.rs
+++ b/src/oned/code_93_reader.rs
@@ -340,3 +340,35 @@ impl Code93Reader {
         }
     }
 }
+
+/**
+ * @author Daisuke Makiuchi
+ */
+#[cfg(test)]
+mod Code93ReaderTestCase {
+    use std::collections::HashMap;
+
+    use crate::{
+        common::{BitArray, BitMatrix},
+        oned::OneDReader,
+    };
+
+    use super::Code93Reader;
+
+    #[test]
+    fn testDecode() {
+        doTest("Code93!\n$%/+ :\u{001b};[{\u{007f}\u{0000}@`\u{007f}\u{007f}\u{007f}",
+             "0000001010111101101000101001100101001011001001100101100101001001100101100100101000010101010000101110101101101010001001001101001101001110010101101011101011011101011101101110100101110101101001110101110110101101010001110110101100010101110110101000110101110110101000101101110110101101001101110110101100101101110110101100110101110110101011011001110110101011001101110110101001101101110110101001110101001100101101010001010111101111");
+    }
+
+    fn doTest(expectedRXingResult: &str, encodedRXingResult: &str) {
+        let mut sut = Code93Reader::new();
+        let matrix = BitMatrix::parse_strings(encodedRXingResult, "1", "0").expect("must parse");
+        let mut row = BitArray::with_size(matrix.getWidth() as usize);
+        row = matrix.getRow(0, row);
+        let result = sut
+            .decodeRow(0, &row, &HashMap::new())
+            .expect("must decode");
+        assert_eq!(expectedRXingResult, result.getText());
+    }
+}