value: image/* # match objects with 'content-type', all values starting with 'image/'
      size:
        lessThan: "10MiB" # match objects with size less than this value (e.g. 10MiB)
        greaterThan: 1MiB # match objects with size greater than this value (e.g. 1MiB)
      purge:
          # retainVersions: 0 # (default) delete all versions of the object. This option is the fastest.

     */
    @Test
    @DisplayName("Test toString requires valid configuration")
    public void testToStringRequiresValidConfig() {
        // Constructor with null config throws exception, so we can't test toString with null config
        // Instead, test that toString works with a valid config

        // Given
        smbComTreeDisconnect = new SmbComTreeDisconnect(config);

        // When

        assertNull(exception.getCause());
    }

    public void test_constructorWithMessageAndCause() {
        // Test constructor with message and cause
        String message = "GSA configuration error with cause";
        Throwable cause = new RuntimeException("Root cause exception");
        GsaConfigException exception = new GsaConfigException(message, cause);

        assertNotNull(exception);

You declare the "shape" of the data as classes with attributes.

And each attribute has a type.

Then you create an instance of that class with some values and it will validate the values, convert them to the appropriate type (if that's the case) and give you an object with all the data.

And you get all the editor support with that resulting object.

An example from the official Pydantic docs:

 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 *

    }

    @Test
    @DisplayName("Should perform hexdump with correct formatting")
    void testHexdump() {
        // Capture output
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PrintStream ps = new PrintStream(baos);

        // Test with 16 bytes (one complete line)
        byte[] data1 = createTestData(16);
        Hexdump.hexdump(ps, data1, 0, 16);

        forEach(jarFile, "", handler);
    }

    /**
     * Traverses resources contained in a Jar file.
     * <p>
     * Of the resources in the Jar file, only those with paths starting with the specified prefix are traversed.
     * The handler receives the entry name with the prefix removed. For example, if the prefix is <code>/aaa/bbb/</code>
     * and the Jar file contains a resource <code>/aaa/bbb/ccc/ddd/eee.txt</code>, the handler receives

        // Test scripts with special characters
        Object result = jobExecutor.execute("test", "script with\nnewline");
        assertEquals("Executed: test script with\nnewline", result);

        result = jobExecutor.execute("test", "script with\ttab");
        assertEquals("Executed: test script with\ttab", result);

        result = jobExecutor.execute("test", "script with \"quotes\"");

    @Test
    @DisplayName("Reading with zero-length array returns 0")
    void readZeroLengthArrayReturnsZero() throws IOException {
        // Create stream with a message containing data
        byte[] data = new byte[] { 1, 2 };
        InputStream in = new ByteArrayInputStream(concat(messageHeader(2), data));
        SocketInputStream sis = new SocketInputStream(in);

        // Default instance
        assertEquals(0, shareInfo.getFileIndex());

        // Instance with values
        SmbShareInfo info = new SmbShareInfo(TEST_NET_NAME, TEST_TYPE, TEST_REMARK);
        assertEquals(0, info.getFileIndex());
    }

    @ParameterizedTest
    @DisplayName("Test getType with different share types")
    @CsvSource({ "1, " + SmbConstants.TYPE_PRINTER, // Printer share