swig/Examples/test-suite/javascript/cpp11_std_unique_ptr_runme.js
William S Fulton d4b1152d4b Add raw pointer handling test for virtual inheritance
This is a test added for D in previous commit, now expanded to all target languages.

Tidy up counting object instances.
2022-08-05 22:30:23 +01:00

112 lines
3.6 KiB
JavaScript

var cpp11_std_unique_ptr = require("cpp11_std_unique_ptr");
var checkCount = function(expected_count) {
actual_count = cpp11_std_unique_ptr.Klass.getTotal_count();
if (actual_count != expected_count)
throw new Error("Counts incorrect, expected:" + expected_count + " actual:" + actual_count);
}
// Test raw pointer handling involving virtual inheritance
{
kini = new cpp11_std_unique_ptr.KlassInheritance("KlassInheritanceInput");
checkCount(1);
s = cpp11_std_unique_ptr.useKlassRawPtr(kini);
if (s !== "KlassInheritanceInput")
throw new Error("Incorrect string: " + s);
// delete kini;
// Above not deleting the C++ object(node v12) - can't reliably control GC
cpp11_std_unique_ptr.takeKlassUniquePtr(kini);
checkCount(0);
}
// unique_ptr as input
{
kin = new cpp11_std_unique_ptr.Klass("KlassInput");
checkCount(1);
s = cpp11_std_unique_ptr.takeKlassUniquePtr(kin);
checkCount(0);
if (s !== "KlassInput")
throw new Error("Incorrect string: " + s);
if (!cpp11_std_unique_ptr.is_nullptr(kin))
throw new Error("is_nullptr failed");
delete kin; // Should not fail, even though already deleted
checkCount(0);
}
{
kin = new cpp11_std_unique_ptr.Klass("KlassInput");
checkCount(1);
s = cpp11_std_unique_ptr.takeKlassUniquePtr(kin);
checkCount(0);
if (s !== "KlassInput")
throw new Error("Incorrect string: " + s);
if (!cpp11_std_unique_ptr.is_nullptr(kin))
throw new Error("is_nullptr failed");
exception_thrown = false;
try {
cpp11_std_unique_ptr.takeKlassUniquePtr(kin);
} catch (e) {
if (!e.message.includes("cannot release ownership as memory is not owned"))
throw new Error("incorrect exception message " + e.message);
exception_thrown = true;
}
if (!exception_thrown)
throw new Error("double usage of takeKlassUniquePtr should have been an error");
delete kin; // Should not fail, even though already deleted
checkCount(0);
}
{
kin = new cpp11_std_unique_ptr.Klass("KlassInput");
exception_thrown = false;
notowned = cpp11_std_unique_ptr.get_not_owned_ptr(kin);
try {
cpp11_std_unique_ptr.takeKlassUniquePtr(notowned);
} catch (e) {
if (!e.message.includes("cannot release ownership as memory is not owned"))
throw new Error("incorrect exception message " + e.message);
exception_thrown = true;
}
if (!exception_thrown)
throw new Error("Should have thrown 'Cannot release ownership as memory is not owned' error");
checkCount(1);
// delete kin;
// Above not deleting the C++ object(node v12) - can't reliably control GC
cpp11_std_unique_ptr.takeKlassUniquePtr(kin);
checkCount(0);
}
{
kini = new cpp11_std_unique_ptr.KlassInheritance("KlassInheritanceInput");
checkCount(1);
s = cpp11_std_unique_ptr.takeKlassUniquePtr(kini);
checkCount(0);
if (s !== "KlassInheritanceInput")
throw new Error("Incorrect string: " + s);
if (!cpp11_std_unique_ptr.is_nullptr(kini))
throw new Error("is_nullptr failed");
delete kini; // Should not fail, even though already deleted
checkCount(0);
}
// unique_ptr as output
k1 = cpp11_std_unique_ptr.makeKlassUniquePtr("first");
if (k1.getLabel() !== "first")
throw new Error("wrong object label");
k2 = cpp11_std_unique_ptr.makeKlassUniquePtr("second");
checkCount(2);
// delete k1;
// Above not deleting the C++ object(node v12) - can't reliably control GC
cpp11_std_unique_ptr.takeKlassUniquePtr(k1);
checkCount(1);
if (k2.getLabel() !== "second")
throw new Error("wrong object label");
// delete k2;
// Above not deleting the C++ object(node v12) - can't reliably control GC
cpp11_std_unique_ptr.takeKlassUniquePtr(k2);
checkCount(0);