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/*
* @test ParserTest
* @summary verify that whitebox functions can be linked and executed
* @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI ParserTest.java
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI ParserTest
*/
import java.math.BigInteger;
import sun.hotspot.parser.DiagnosticCommand;
import sun.hotspot.parser.DiagnosticCommand.DiagnosticArgumentType;
import sun.hotspot.WhiteBox;
public class ParserTest {
WhiteBox wb;
public ParserTest() throws Exception {
wb = WhiteBox.getWhiteBox();
testNanoTime();
testJLong();
testBool();
testMemorySize();
}
public static void main(String... args) throws Exception {
new ParserTest();
}
public void testNanoTime() throws Exception {
String name = "name";
DiagnosticCommand arg = new DiagnosticCommand(name,
"desc", DiagnosticArgumentType.NANOTIME,
false, "0");
DiagnosticCommand[] args = {arg};
BigInteger bi = new BigInteger("7");
//These should work
parse(name, bi.toString(), name + "=7ns", args);
bi = bi.multiply(BigInteger.valueOf(1000));
parse(name, bi.toString(), name + "=7us", args);
bi = bi.multiply(BigInteger.valueOf(1000));
parse(name, bi.toString(), name + "=7ms", args);
bi = bi.multiply(BigInteger.valueOf(1000));
parse(name, bi.toString(), name + "=7s", args);
bi = bi.multiply(BigInteger.valueOf(60));
parse(name, bi.toString() , name + "=7m", args);
bi = bi.multiply(BigInteger.valueOf(60));
parse(name, bi.toString() , name + "=7h", args);
bi = bi.multiply(BigInteger.valueOf(24));
parse(name, bi.toString() , name + "=7d", args);
parse(name, "0", name + "=0", args);
shouldFail(name + "=7xs", args);
shouldFail(name + "=7mms", args);
shouldFail(name + "=7f", args);
//Currently, only value 0 is allowed without unit
shouldFail(name + "=7", args);
}
public void testJLong() throws Exception {
String name = "name";
DiagnosticCommand arg = new DiagnosticCommand(name,
"desc", DiagnosticArgumentType.JLONG,
false, "0");
DiagnosticCommand[] args = {arg};
wb.parseCommandLine(name + "=10", args);
parse(name, "10", name + "=10", args);
parse(name, "-5", name + "=-5", args);
//shouldFail(name + "=12m", args); <-- should fail, doesn't
}
public void testBool() throws Exception {
String name = "name";
DiagnosticCommand arg = new DiagnosticCommand(name,
"desc", DiagnosticArgumentType.BOOLEAN,
false, "false");
DiagnosticCommand[] args = {arg};
parse(name, "true", name + "=true", args);
parse(name, "false", name + "=false", args);
parse(name, "true", name, args);
//Empty commandline to parse, tests default value
//of the parameter "name"
parse(name, "false", "", args);
}
public void testMemorySize() throws Exception {
String name = "name";
String defaultValue = "1024";
DiagnosticCommand arg = new DiagnosticCommand(name,
"desc", DiagnosticArgumentType.MEMORYSIZE,
false, defaultValue);
DiagnosticCommand[] args = {arg};
BigInteger bi = new BigInteger("7");
parse(name, bi.toString(), name + "=7b", args);
bi = bi.multiply(BigInteger.valueOf(1024));
parse(name, bi.toString(), name + "=7k", args);
bi = bi.multiply(BigInteger.valueOf(1024));
parse(name, bi.toString(), name + "=7m", args);
bi = bi.multiply(BigInteger.valueOf(1024));
parse(name, bi.toString(), name + "=7g", args);
parse(name, defaultValue, "", args);
//shouldFail(name + "=7gg", args); <---- should fail, doesn't
//shouldFail(name + "=7t", args); <----- should fail, doesn't
}
public void parse(String searchName, String expectedValue,
String cmdLine, DiagnosticCommand[] argumentTypes) throws Exception {
//parseCommandLine will return an object array that looks like
//{<name of parsed object>, <of parsed object> ... }
Object[] res = wb.parseCommandLine(cmdLine, argumentTypes);
for (int i = 0; i < res.length-1; i+=2) {
String parsedName = (String) res[i];
if (searchName.equals(parsedName)) {
String parsedValue = (String) res[i+1];
if (expectedValue.equals(parsedValue)) {
return;
} else {
throw new Exception("Parsing of cmdline '" + cmdLine + "' failed!\n"
+ searchName + " parsed as " + parsedValue
+ "! Expected: " + expectedValue);
}
}
}
throw new Exception(searchName + " not found as a parsed Argument!");
}
private void shouldFail(String argument, DiagnosticCommand[] argumentTypes) throws Exception {
try {
wb.parseCommandLine(argument, argumentTypes);
throw new Exception("Parser accepted argument: " + argument);
} catch (IllegalArgumentException e) {
//expected
}
}
}
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