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// attempts to be a comprehensive test of assert statements that have
// only intra-package behaviour.
import org.aspectj.testing.Tester;
public class AssertInOnePackage {
public static void main(String[] args) {
turnOnAssertions();
runTests();
}
// we first turn on assertions. This is run _before_ any other
// method is run, so the only classes that are loaded are
// AssertInOnePackage.
static void turnOnAssertions() {
ClassLoader cl = AssertInOnePackage.class.getClassLoader();
cl.setClassAssertionStatus("StaticInitializerOnHelper", true);
cl.setClassAssertionStatus("StaticInitializerOffHelper", false);
cl.setClassAssertionStatus("ConstructorOnHelper", true);
cl.setClassAssertionStatus("ConstructorOffHelper", false);
cl.setClassAssertionStatus("InnerStaticInitializerOnHelper", true);
cl.setClassAssertionStatus("InnerStaticInitializerOffHelper", false);
cl.setClassAssertionStatus("InnerStaticInitializerOnHelperI", true);
cl.setClassAssertionStatus("InnerStaticInitializerOffHelperI", false);
cl.setClassAssertionStatus("CycleSubOn", true);
cl.setClassAssertionStatus("CycleSubOff", false);
}
// In the following tests, the assignment to the static field
// translates into a putstatic bytecode, which, by section 5.5 of
// the JVM spec, will initialize the class.
static void runTests() {
check(true,
"static initializer should throw",
new Runnable() {
void run() { StaticInitializerOnHelper.x = 3; }
});
check(false,
"static initializer should not throw",
new Runnable() {
void run() { StaticInitializerOffHelper.x = 3; }
});
check(true,
"constructor should throw",
new Runnable() {
void pre() { ConstructorOnHelper.x = 3; }
void run() { new ConstructorOnHelper(); }
});
check(false,
"static initializer should not throw",
new Runnable() {
void pre() { ConstructorOffHelper.x = 3; }
void run() { new ConstructorOffHelper(); }
});
check(true,
"inner static initializer should throw",
new Runnable() {
void run() { InnerStaticInitializerOnHelper.Inner.x = 3; }
});
check(false,
"inner static initializer should not throw",
new Runnable() {
void run() { InnerStaticInitializerOffHelper.Inner.x = 3; }
});
check(true,
"inner static initializer of interface should throw",
new Runnable() {
void run() { InnerStaticInitializerOnHelperI.Inner.x = 3; }
});
check(false,
"inner static initializer of interface should not throw",
new Runnable() {
void run() { InnerStaticInitializerOffHelperI.Inner.x = 3; }
});
check(true,
"static initializer in cyclic should throw",
new Runnable() {
void run() { CycleSubOn.x = 3; }
});
check(true,
"static initializer in cyclic should always throw",
new Runnable() {
void run() { CycleSubOff.x = 3; }
});
}
static void check(boolean shouldThrow, String message, Runnable r) {
r.pre();
boolean threw = false;
try {
r.run();
} catch (AssertionError e) {
threw = true;
}
if (threw != shouldThrow) {
//System.err.println(message);
Tester.check(false, message);
}
r.post();
}
static class Runnable {
void pre() {}
void run() {}
void post() {}
}
}
// ------------------------------
// Asserts in a static initializer of a class
class StaticInitializerOnHelper {
static int x;
static {
assert false;
}
}
class StaticInitializerOffHelper {
static int x;
static {
assert false;
}
}
// ------------------------------
// Asserts in a constructor of a class. This stands in for all
// "normal" assertion, so I'm not going to bother writing asserts in
// other post-class-initialization contexts.
class ConstructorOnHelper {
static int x;
ConstructorOnHelper() {
assert false;
}
}
class ConstructorOffHelper {
static int x;
ConstructorOffHelper() {
assert false;
}
}
// ------------------------------
// Asserts in a static initializer of an inner class.
class InnerStaticInitializerOnHelper {
static class Inner {
static int x;
static {
assert false;
}
}
}
class InnerStaticInitializerOffHelper {
static class Inner {
static int x;
static {
assert false;
}
}
}
// ------------------------------
// Asserts in a static initializer of an inner class of an interface.
interface InnerStaticInitializerOnHelperI {
static class Inner {
static int x;
static {
assert false;
}
}
}
interface InnerStaticInitializerOffHelperI {
static class Inner {
static int x;
static {
assert false;
}
}
}
// ------------------------------
// Asserts in the subclass called in an initialization inversion
class CycleSuperOn {
static {
CycleSubOn.foo();
}
}
class CycleSubOn extends CycleSuperOn {
static int x;
static void foo() {
assert false;
}
}
class CycleSuperOff {
static {
CycleSubOff.foo();
}
}
class CycleSubOff extends CycleSuperOff {
static int x;
static void foo() {
assert false;
}
}
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