Added more unit tests.

src/test/java/com/imsweb/seerutils/SeerLRUCacheTest.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2023 Information Management Services, Inc.
+ */
+package com.imsweb.seerutils;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class SeerLRUCacheTest {
+
+    @Test
+    public void testCache() {
+        SeerLRUCache<String, String> cache = new SeerLRUCache<>(3);
+
+        cache.put("1", "A");
+        cache.put("2", "B");
+        cache.put("3", "C");
+        Assert.assertEquals(3, cache.size());
+
+        cache.put("4", "D");
+        Assert.assertEquals(3, cache.size());
+        Assert.assertTrue(cache.containsKey("4"));
+        Assert.assertFalse(cache.containsKey("1"));
+    }
+
+}

src/test/java/com/imsweb/seerutils/zip/ZipSecureFileTest.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2023 Information Management Services, Inc.
+ */
+package com.imsweb.seerutils.zip;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.StringWriter;
+import java.util.Arrays;
+import java.util.Enumeration;
+
+import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.imsweb.seerutils.SeerUtils;
+
+public class ZipSecureFileTest {
+
+    @Test
+    public void testZipSecureFile() throws IOException {
+
+        File dir = new File(System.getProperty("user.dir") + "/build");
+        if (!dir.exists() && !dir.mkdir())
+            Assert.fail("Unable to create build directory!");
+
+        File f1 = new File(dir, "f1.txt");
+        SeerUtils.writeFile("test1", f1);
+        File f2 = new File(dir, "f2.txt");
+        SeerUtils.writeFile("test2", f2);
+
+        File f = new File(dir, "f.zip");
+        SeerUtils.zipFiles(Arrays.asList(f1, f2), f);
+
+        try (ZipSecureFile secureFile = new ZipSecureFile(f)) {
+            Assert.assertTrue(secureFile.getMaxEntrySize() > 0);
+            Assert.assertTrue(secureFile.getMinInflateRatio() > 0.0);
+
+            Enumeration<ZipArchiveEntry> entries = secureFile.getEntries();
+            while (entries.hasMoreElements()) {
+                try (InputStreamReader reader = new InputStreamReader(secureFile.getInputStream(entries.nextElement())); StringWriter writer = new StringWriter()) {
+                    SeerUtils.copyReaderToWriter(reader, writer);
+                    Assert.assertTrue(writer.toString().startsWith("test"));
+                }
+            }
+        }
+
+        // test too many entries
+        try (ZipSecureFile secureFile = new ZipSecureFile(f, 0.0075, 1L)) {
+            Enumeration<ZipArchiveEntry> entries = secureFile.getEntries();
+            while (entries.hasMoreElements()) {
+                try (InputStreamReader reader = new InputStreamReader(secureFile.getInputStream(entries.nextElement())); StringWriter writer = new StringWriter()) {
+                    SeerUtils.copyReaderToWriter(reader, writer);
+                }
+            }
+            Assert.fail("Should have been an exception here");
+        }
+        catch (ZipEntryTooLargeException e) {
+            // expected
+        }
+
+        // I can't test the compression ratio because there is a hard-coded "grace" size, and I would have to create a big file for this...
+    }
+}