132 lines
4.1 KiB
Java
132 lines
4.1 KiB
Java
package com.alibaba.fastjson.parser;
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import com.alibaba.fastjson.JSONException;
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import org.junit.Assert;
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import org.junit.Test;
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public class JSONScannerTest {
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@Test
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public void inputTokenTest_Comma() throws Throwable {
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JSONScanner scanner = new JSONScanner(",");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.COMMA, scanner.token());
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}
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@Test
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public void inputTokenTest_String() throws Throwable {
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JSONScanner scanner = new JSONScanner("\"text\"");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_STRING, scanner.token());
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Assert.assertEquals("text", scanner.stringVal());
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}
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@Test
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public void inputTokenTest_Integer() throws Throwable {
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JSONScanner scanner = new JSONScanner("-352");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_INT, scanner.token());
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Assert.assertEquals(-352, scanner.intValue());
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}
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@Test
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public void inputTokenTest_True() throws Throwable {
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JSONScanner scanner = new JSONScanner("true");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.TRUE, scanner.token());
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}
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@Test
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public void inputTokenTest_False() throws Throwable {
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JSONScanner scanner = new JSONScanner("false");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.FALSE, scanner.token());
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}
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@Test
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public void inputTokenTest_Float() throws Throwable {
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JSONScanner scanner = new JSONScanner("2.5e2");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_FLOAT, scanner.token());
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}
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@Test
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public void inputTokenTest_Null() throws Throwable {
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JSONScanner scanner = new JSONScanner("null");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.NULL, scanner.token());
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}
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@Test
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public void scannerSequenceTest() throws Throwable {
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JSONScanner scanner = new JSONScanner("5,:");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_INT, scanner.token());
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Assert.assertEquals(5, scanner.intValue());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.COMMA, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.COLON, scanner.token());
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}
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@Test
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public void scannerPositionTest() throws Throwable {
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JSONScanner scanner = new JSONScanner("5,:");
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scanner.nextToken();
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Assert.assertEquals(0, scanner.pos());
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scanner.nextToken();
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Assert.assertEquals(1, scanner.pos());
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scanner.nextToken();
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Assert.assertEquals(2, scanner.pos());
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}
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@Test
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public void scannerEofTest() throws Throwable {
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JSONScanner scanner = new JSONScanner("5,:");
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scanner.nextToken();
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scanner.nextToken();
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scanner.nextToken(); // colon
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// scanner should now enter EOF
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scanner.nextToken();
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Assert.assertTrue(scanner.isEOF());
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Assert.assertEquals(JSONToken.EOF, scanner.token());
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}
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@Test(expected=JSONException.class)
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public void scannerInputFormatTest_Invalid() throws Throwable {
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JSONScanner scanner = new JSONScanner("53fds"); // invalid literal value
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scanner.nextToken(); // consumes numeric token
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scanner.nextToken(); // should raise invalid literal
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}
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@Test()
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public void complexExampleTest() throws Throwable {
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JSONScanner scanner = new JSONScanner("{\"Name\":\"Michael\",\"Last\":\"Chen\"}");
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LBRACE, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_STRING, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.COLON, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_STRING, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.COMMA, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_STRING, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.COLON, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.LITERAL_STRING, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.RBRACE, scanner.token());
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scanner.nextToken();
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Assert.assertEquals(JSONToken.EOF, scanner.token());
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}
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}
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