More tests covering FileWriter

src/test/java/org/cqfn/astranaut/core/utils/FilesWriterTest.java

@@ -0,0 +1,79 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2024 Ivan Kniazkov
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.cqfn.astranaut.core.utils;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.attribute.PosixFilePermission;
+import java.util.Locale;
+import java.util.Set;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+/**
+ * Test for {@link FilesWriter} class.
+ * @since 2.0.0
+ */
+class FilesWriterTest {
+    @Test
+    void testWriteStringNoExceptSuccess(@TempDir final Path tmpdir) {
+        final Path path = tmpdir.resolve("testFile.txt");
+        final FilesWriter writer = new FilesWriter(path.toString());
+        final boolean result = writer.writeStringNoExcept("Hello, World!");
+        Assertions.assertTrue(result);
+        Assertions.assertTrue(Files.exists(path));
+    }
+
+    @Test
+    void testWriteStringNoExceptFailure(@TempDir final Path tmpdir) {
+        boolean oops = false;
+        try {
+            final Path path = tmpdir.resolve("protectedFile.txt");
+            FilesWriter writer = new FilesWriter(path.toString());
+            writer.writeString("Initial content");
+            if (System.getProperty("os.name").toLowerCase(Locale.ENGLISH).contains("win")) {
+                Files.setAttribute(path, "dos:readonly", true);
+            } else {
+                final Set<PosixFilePermission> permissions = Files.getPosixFilePermissions(path);
+                permissions.remove(PosixFilePermission.OWNER_WRITE);
+                Files.setPosixFilePermissions(path, permissions);
+            }
+            writer = new FilesWriter(path.toString());
+            final boolean result = writer.writeStringNoExcept("New content");
+            if (System.getProperty("os.name").toLowerCase(Locale.ENGLISH).contains("win")) {
+                Files.setAttribute(path, "dos:readonly", false);
+            } else {
+                final Set<PosixFilePermission> permissions = Files.getPosixFilePermissions(path);
+                permissions.add(PosixFilePermission.OWNER_WRITE);
+                Files.setPosixFilePermissions(path, permissions);
+            }
+            Assertions.assertFalse(result);
+        } catch (final IOException ignored) {
+            oops = true;
+        }
+        Assertions.assertFalse(oops);
+    }
+}