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/*******************************************************************\
Module: Unit tests for inherited static fields
Author: Diffblue Ltd.
\*******************************************************************/
#include <java-testing-utils/load_java_class.h>
#include <testing-utils/use_catch.h>
#include <algorithm>
#include <java_bytecode/java_types.h>
#include <java_bytecode/java_utils.h>
#include <util/expr_iterator.h>
/// Check the full tree of expr for any symbol_exprts that have an identifier id
/// \param expr: expr to check
/// \param id: symbol id to look for
/// \return true if a suitable symbol_exprt is found
static bool contains_symbol_reference(const exprt &expr, const irep_idt &id)
{
return std::any_of(
expr.depth_begin(), expr.depth_end(), [id](const exprt &e) {
return e.id() == ID_symbol && to_symbol_expr(e).get_identifier() == id;
});
}
SCENARIO(
"inherited_static_types", "[core][java_bytecode][inherited_static_types]")
{
WHEN("A class uses an inherited static field 'x'")
{
symbol_tablet symbol_table=
load_java_class("Test1", "./java_bytecode/inherited_static_fields");
THEN("A static field 'Parent1.x' should exist")
{
REQUIRE(symbol_table.has_symbol("java::Parent1.x"));
}
THEN("Static field 'Parent1.x' should be declared by class Parent1")
{
REQUIRE(
id2string(*declaring_class(
symbol_table.lookup_ref("java::Parent1.x"))) == "java::Parent1");
}
THEN("No static field 'Test1.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test1.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test1.main should refer to Parent1.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test1.main:()I").value,
"java::Parent1.x"));
}
}
WHEN("A class uses an interface static field 'x'")
{
symbol_tablet symbol_table=
load_java_class("Test2", "./java_bytecode/inherited_static_fields");
THEN("A static field 'StaticInterface2.x' should exist")
{
REQUIRE(symbol_table.has_symbol("java::StaticInterface2.x"));
}
THEN(
"Static field 'java::StaticInterface2.x' should be declared by "
"StaticInterface2")
{
REQUIRE(
id2string(*declaring_class(symbol_table.lookup_ref(
"java::StaticInterface2.x"))) == "java::StaticInterface2");
}
THEN("No static field 'Test2.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test2.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test2.main should refer to StaticInterface2.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test2.main:()I").value,
"java::StaticInterface2.x"));
}
}
WHEN("A class with an opaque parent uses an inherited static field 'x'")
{
symbol_tablet symbol_table=
load_java_class("Test3", "./java_bytecode/inherited_static_fields");
THEN("Type OpaqueParent3 should be opaque")
{
REQUIRE(
to_java_class_type(symbol_table.lookup_ref("java::OpaqueParent3").type)
.get_is_stub());
}
THEN("A static field 'OpaqueParent3.x' should exist")
{
REQUIRE(symbol_table.has_symbol("java::OpaqueParent3.x"));
}
THEN(
"Static field 'OpaqueParent3.x' should be declared by class "
"OpaqueParent3")
{
REQUIRE(
id2string(*declaring_class(symbol_table.lookup_ref(
"java::OpaqueParent3.x"))) == "java::OpaqueParent3");
}
THEN("No static field 'Test3.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test3.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test3.main should refer to OpaqueParent3.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test3.main:()I").value,
"java::OpaqueParent3.x"));
}
}
WHEN("A class with an opaque interface uses an inherited static field 'x'")
{
symbol_tablet symbol_table =
load_java_class("Test4", "./java_bytecode/inherited_static_fields");
THEN("Type OpaqueInterface4 should be opaque")
{
REQUIRE(to_java_class_type(
symbol_table.lookup_ref("java::OpaqueInterface4").type)
.get_is_stub());
}
THEN("A static field 'OpaqueInterface4.x' should exist")
{
REQUIRE(symbol_table.has_symbol("java::OpaqueInterface4.x"));
}
THEN(
"Static field 'OpaqueInterface4.x' should be declared by class "
"OpaqueInterface4")
{
REQUIRE(
id2string(*declaring_class(symbol_table.lookup_ref(
"java::OpaqueInterface4.x"))) == "java::OpaqueInterface4");
}
THEN("No static field 'Test4.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test4.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test4.main should refer to OpaqueInterface4.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test4.main:()I").value,
"java::OpaqueInterface4.x"));
}
}
WHEN("A class with two opaque parents uses an inherited static field 'x'")
{
symbol_tablet symbol_table=
load_java_class("Test5", "./java_bytecode/inherited_static_fields");
THEN("Type OpaqueParent5 should be opaque")
{
REQUIRE(
to_java_class_type(symbol_table.lookup_ref("java::OpaqueParent5").type)
.get_is_stub());
}
THEN("Type OpaqueInterface5 should be opaque")
{
REQUIRE(to_java_class_type(
symbol_table.lookup_ref("java::OpaqueInterface5").type)
.get_is_stub());
}
THEN("One or other parent (not both) should gain a static field 'x'")
{
REQUIRE(
symbol_table.has_symbol("java::OpaqueInterface5.x") !=
symbol_table.has_symbol("java::OpaqueParent5.x"));
}
THEN("No static field 'Test5.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test5.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test5.main should use either OpaqueParent5.x or OpaqueInterface5.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test5.main:()I").value,
"java::OpaqueInterface5.x") !=
contains_symbol_reference(
symbol_table.lookup_ref("java::Test5.main:()I").value,
"java::OpaqueParent5.x"));
}
}
WHEN("A class refers to a parent's protected static field")
{
symbol_tablet symbol_table=
load_java_class("Test6", "./java_bytecode/inherited_static_fields");
THEN("A static field Parent6.x should exist")
{
REQUIRE(symbol_table.has_symbol("java::Parent6.x"));
}
THEN("Static field 'Parent6.x' should be declared by class Parent6")
{
REQUIRE(
id2string(*declaring_class(
symbol_table.lookup_ref("java::Parent6.x"))) == "java::Parent6");
}
THEN("No static field 'Test6.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test6.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test6.main should use Parent6.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test6.main:()I").value,
"java::Parent6.x"));
}
}
WHEN("A class refers to an interface field "
"and its parent has an invisible package-private field of the same name")
{
symbol_tablet symbol_table=
load_java_class("Test7", "./java_bytecode/inherited_static_fields");
THEN("A static field otherpackage.Parent7.x should exist")
{
REQUIRE(symbol_table.has_symbol("java::otherpackage.Parent7.x"));
}
THEN(
"Static field 'otherpackage.Parent7.x' should be declared by class "
"otherpackage.Parent7")
{
REQUIRE(
id2string(*declaring_class(symbol_table.lookup_ref(
"java::otherpackage.Parent7.x"))) == "java::otherpackage.Parent7");
}
THEN("A static field StaticInterface7.x should exist")
{
REQUIRE(symbol_table.has_symbol("java::StaticInterface7.x"));
}
THEN(
"Static field 'StaticInterface7.x' should be declared by class "
"StaticInterface7")
{
REQUIRE(
id2string(*declaring_class(symbol_table.lookup_ref(
"java::StaticInterface7.x"))) == "java::StaticInterface7");
}
THEN("No static field 'Test7.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test7.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test7.main should use StaticInterface7.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test7.main:()I").value,
"java::StaticInterface7.x"));
}
THEN("Test7.main should not use otherpackage.Parent7.x")
{
REQUIRE(
!contains_symbol_reference(
symbol_table.lookup_ref("java::Test7.main:()I").value,
"java::otherpackage.Parent7.x"));
}
}
WHEN("A class refers to a parent's visible package-visibility field")
{
symbol_tablet symbol_table=
load_java_class("Test8", "./java_bytecode/inherited_static_fields");
THEN("A static field Parent8.x should exist")
{
REQUIRE(symbol_table.has_symbol("java::Parent8.x"));
}
THEN("Static field 'Parent8.x' should be declared by class Parent8")
{
REQUIRE(
id2string(*declaring_class(
symbol_table.lookup_ref("java::Parent8.x"))) == "java::Parent8");
}
THEN("No static field 'Test8.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test8.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test8.main should use Parent8.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test8.main:()I").value,
"java::Parent8.x"));
}
}
WHEN("A class refers to an interface field "
"and its parent has an invisible private field of the same name")
{
symbol_tablet symbol_table=
load_java_class("Test9", "./java_bytecode/inherited_static_fields");
THEN("A static field Parent9.x should exist")
{
REQUIRE(symbol_table.has_symbol("java::Parent9.x"));
}
THEN("Static field 'Parent9.x' should be declared by class Parent9")
{
REQUIRE(
id2string(*declaring_class(
symbol_table.lookup_ref("java::Parent9.x"))) == "java::Parent9");
}
THEN("A static field StaticInterface9.x should exist")
{
REQUIRE(symbol_table.has_symbol("java::StaticInterface9.x"));
}
THEN("Static field 'Parent8.x' should be declared by StaticInterface9")
{
REQUIRE(
id2string(*declaring_class(symbol_table.lookup_ref(
"java::StaticInterface9.x"))) == "java::StaticInterface9");
}
THEN("No static field 'Test9.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::Test9.x"));
}
THEN("No static field 'java.lang.Object.x' should be created")
{
REQUIRE(!symbol_table.has_symbol("java::java.lang.Object.x"));
}
THEN("Test9.main should use StaticInterface9.x")
{
REQUIRE(
contains_symbol_reference(
symbol_table.lookup_ref("java::Test9.main:()I").value,
"java::StaticInterface9.x"));
}
THEN("Test9.main should not use Parent9.x")
{
REQUIRE(
!contains_symbol_reference(
symbol_table.lookup_ref("java::Test9.main:()I").value,
"java::Parent9.x"));
}
}
}
|
