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package com.jsoniter;

import com.jsoniter.spi.JsonException;

import junit.framework.TestCase;

import org.junit.experimental.categories.Category;

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.math.BigDecimal;

import java.math.BigInteger;

//import java.math.BigDecimal;

//import java.math.BigInteger;

public class TestInteger extends TestCase {

static {

// JsonIterator.setMode(DecodingMode.DYNAMIC_MODE_AND_MATCH_FIELD_STRICTLY);

}

private boolean isStreaming;

public void test_char() throws IOException {

Character c = JsonIterator.deserialize("50", Character.class);

assertEquals(50, (int) c);

}

public void test_positive_negative_int() throws IOException {

assertEquals(0, parseInt("0"));

assertEquals(4321, parseInt("4321"));

assertEquals(54321, parseInt("54321"));

assertEquals(654321, parseInt("654321"));

assertEquals(7654321, parseInt("7654321"));

assertEquals(87654321, parseInt("87654321"));

assertEquals(987654321, parseInt("987654321"));

assertEquals(2147483647, parseInt("2147483647"));

assertEquals(-4321, parseInt("-4321"));

assertEquals(-2147483648, parseInt("-2147483648"));

}

public void test_positive_negative_long() throws IOException {

assertEquals(0L, parseLong("0"));

assertEquals(4321L, parseLong("4321"));

assertEquals(54321L, parseLong("54321"));

assertEquals(654321L, parseLong("654321"));

assertEquals(7654321L, parseLong("7654321"));

assertEquals(87654321L, parseLong("87654321"));

assertEquals(987654321L, parseLong("987654321"));

assertEquals(9223372036854775807L, parseLong("9223372036854775807"));

assertEquals(-4321L, parseLong("-4321"));

assertEquals(-9223372036854775808L, parseLong("-9223372036854775808"));

}

public void test_max_min_int() throws IOException {

assertEquals(Integer.MAX_VALUE, parseInt(Integer.toString(Integer.MAX_VALUE)));

assertEquals(Integer.MAX_VALUE - 1, parseInt(Integer.toString(Integer.MAX_VALUE - 1)));

assertEquals(Integer.MIN_VALUE + 1, parseInt(Integer.toString(Integer.MIN_VALUE + 1)));

assertEquals(Integer.MIN_VALUE, parseInt(Integer.toString(Integer.MIN_VALUE)));

}

public void test_max_min_long() throws IOException {

assertEquals(Long.MAX_VALUE, parseLong(Long.toString(Long.MAX_VALUE)));

assertEquals(Long.MAX_VALUE - 1, parseLong(Long.toString(Long.MAX_VALUE - 1)));

assertEquals(Long.MIN_VALUE + 1, parseLong(Long.toString(Long.MIN_VALUE + 1)));

assertEquals(Long.MIN_VALUE, parseLong(Long.toString(Long.MIN_VALUE)));

}

public void test_large_number() throws IOException {

try {

JsonIterator.deserialize("2147483648", Integer.class);

fail();

} catch (JsonException e) {

}

for (int i = 300000000; i < 2000000000; i += 10000000) {

try {

JsonIterator.deserialize(i + "0", Integer.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize(-i + "0", Integer.class);

fail();

} catch (JsonException e) {

}

}

try {

JsonIterator.deserialize("9223372036854775808", Long.class);

fail();

} catch (JsonException e) {

}

for (long i = 1000000000000000000L; i < 9000000000000000000L; i += 100000000000000000L) {

try {

JsonIterator.deserialize(i + "0", Long.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize(-i + "0", Long.class);

fail();

} catch (JsonException e) {

}

}

}

public void test_byte() throws IOException {

Byte val = JsonIterator.deserialize("120", Byte.class);

assertEquals(Byte.valueOf((byte) 120), val);

byte[] vals = JsonIterator.deserialize("[120]", byte[].class);

assertEquals((byte) 120, vals[0]);

}

@Category(StreamingCategory.class)

public void test_streaming() throws IOException {

isStreaming = true;

test_positive_negative_int();

test_positive_negative_long();

test_max_min_int();

test_max_min_long();

test_large_number();

}

public void test_leading_zero() throws IOException {

assertEquals(Integer.valueOf(0), JsonIterator.deserialize("0", int.class));

assertEquals(Long.valueOf(0), JsonIterator.deserialize("0", long.class));

try {

JsonIterator.deserialize("01", int.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize("02147483647", int.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize("01", long.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize("09223372036854775807", long.class);

fail();

} catch (JsonException e) {

}

/* FIXME if we should fail on parsing of leading zeroes for other numbers

try {

JsonIterator.deserialize("01", double.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize("01", float.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize("01", BigInteger.class);

fail();

} catch (JsonException e) {

}

try {

JsonIterator.deserialize("01", BigDecimal.class);

fail();

} catch (JsonException e) {

}

*/

}

public void test_max_int() throws IOException {

int[] ints = JsonIterator.deserialize("[2147483647,-2147483648]", int[].class);

assertEquals(Integer.MAX_VALUE, ints[0]);

assertEquals(Integer.MIN_VALUE, ints[1]);

}

private int parseInt(String input) throws IOException {

if (isStreaming) {

JsonIterator iter = JsonIterator.parse(new ByteArrayInputStream(input.getBytes()), 2);

return iter.readInt();

} else {

JsonIterator iter = JsonIterator.parse(input);

int v = iter.readInt();

assertEquals(input.length(), iter.head); // iterator head should point on next non-parsed byte

return v;

}

}

private long parseLong(String input) throws IOException {

if (isStreaming) {

JsonIterator iter = JsonIterator.parse(new ByteArrayInputStream(input.getBytes()), 2);

return iter.readLong();

} else {

JsonIterator iter = JsonIterator.parse(input);

long v = iter.readLong();

assertEquals(input.length(), iter.head); // iterator head should point on next non-parsed byte

return v;

}

}

public void testBigInteger() {

BigInteger number = JsonIterator.deserialize("100", BigInteger.class);

assertEquals(new BigInteger("100"), number);

}

public void testChooseInteger() {

Object number = JsonIterator.deserialize("100", Object.class);

assertEquals(100, number);

}

public void testChooseLong() {

Object number = JsonIterator.deserialize(Long.valueOf(Long.MAX_VALUE).toString(), Object.class);

assertEquals(Long.MAX_VALUE, number);

}

}