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 * Copyright (c) 2013, Regents of the University of California
 *
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 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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package com.oracle.graal.python.test.grammar;

import static com.oracle.graal.python.test.PythonTests.assertPrints;

import org.junit.Test;

public class IfTests {

    @Test
    public void basic() {
        String source = "a = 1\n" + //
                        "b = 2\n" + //
                        "if a < b:\n" + //
                        "    print('a < b')\n" + //
                        "if a:\n" + //
                        "    print('a is true')\n" + //
                        "if not b:\n" + //
                        "    print('b is false')\n" + //
                        "if not a > b:\n" + //
                        "    print('not a > b')\n";
        assertPrints("a < b\na is true\nnot a > b\n", source);
    }

    @Test
    public void none() {
        String source = "a = None\n" + //
                        "if a is None:\n" + //
                        "    print('a is', a)\n" + //
                        "else:\n" + //
                        "    print('Error!')\n" + //
                        "if a is not None:\n" + //
                        "    print('Error!')\n" + //
                        "else:\n" + //
                        "    print('a is', a)\n" + //
                        "if a:\n" + //
                        "    print('Error!')\n" + //
                        "else:\n" + //
                        "    print('a is', a)\n" + //
                        "if not a:\n" + //
                        "    print('a is', a)\n" + "else:\n" + //
                        "    print('Error!')\n"; //
        assertPrints("a is None\na is None\na is None\na is None\n", source);
    }

    @Test
    public void testExtendedArgs() {
        StringBuilder source = new StringBuilder();
        StringBuilder expected = new StringBuilder();
        source.append("a = 1\n");
        source.append("if a:\n");
        for (int i = 0; i < 260; i++) {
            source.append(String.format("   print('%d')\n", i));
            expected.append(i).append('\n');
        }
        source.append("else:\n");
        source.append("    print('else')");

        assertPrints(expected.toString(), source.toString());
        assertPrints("else\n", source.toString().replace("a = 1", "a = 0"));
    }
}
