1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <jni.h>
#include <QtCore/QJniEnvironment>
#include <QtCore/QJniObject>
#include <QtTest/QtTest>
static const char javaTestClass[] =
"org/qtproject/qt/android/testdatapackage/QtJniEnvironmentTestClass";
static QString registerNativesString = QStringLiteral("Qt");
class tst_QJniEnvironment : public QObject
{
Q_OBJECT
private slots:
void jniEnv();
void javaVM();
void registerNativeMethods();
};
void tst_QJniEnvironment::jniEnv()
{
QJniEnvironment env;
JavaVM *javaVM = env.javaVM();
QVERIFY(javaVM);
{
// JNI environment should now be attached to the current thread
JNIEnv *jni = 0;
QCOMPARE(javaVM->GetEnv((void**)&jni, JNI_VERSION_1_6), JNI_OK);
JNIEnv *e = env.jniEnv();
QVERIFY(e);
QCOMPARE(env->GetVersion(), JNI_VERSION_1_6);
// try to find an existing class
QVERIFY(env->FindClass("java/lang/Object"));
QVERIFY(!env->ExceptionCheck());
// try to find a nonexistent class
QVERIFY(!env->FindClass("this/doesnt/Exist"));
QVERIFY(env->ExceptionCheck());
env->ExceptionClear();
QVERIFY(env->FindClass("java/lang/Object"));
QVERIFY(!QJniEnvironment::checkAndClearExceptions(env.jniEnv()));
// try to find a nonexistent class
QVERIFY(!env->FindClass("this/doesnt/Exist"));
QVERIFY(QJniEnvironment::checkAndClearExceptions(env.jniEnv()));
// try to find an existing class with QJniEnvironment
QJniEnvironment env;
QVERIFY(env.findClass("java/lang/Object"));
// try to find a nonexistent class
QVERIFY(!env.findClass("this/doesnt/Exist"));
// clear exception with member function
QVERIFY(!env->FindClass("this/doesnt/Exist"));
QVERIFY(env.checkAndClearExceptions());
}
// The env does not detach automatically, even if it goes out of scope. The only way it can
// be detached is if it's done explicitly, or if the thread we attached to gets killed (TLS clean-up).
JNIEnv *jni = nullptr;
QCOMPARE(javaVM->GetEnv((void**)&jni, JNI_VERSION_1_6), JNI_OK);
}
void tst_QJniEnvironment::javaVM()
{
QJniEnvironment env;
JavaVM *javaVM = env.javaVM();
QVERIFY(javaVM);
QCOMPARE(env.javaVM(), javaVM);
JavaVM *vm = 0;
QCOMPARE(env->GetJavaVM(&vm), JNI_OK);
QCOMPARE(env.javaVM(), vm);
}
static void callbackFromJava(JNIEnv *env, jobject /*thiz*/, jstring value)
{
Q_UNUSED(env)
registerNativesString = QJniObject(value).toString();
}
void tst_QJniEnvironment::registerNativeMethods()
{
JNINativeMethod methods[] {
{"callbackFromJava", "(Ljava/lang/String;)V", reinterpret_cast<void *>(callbackFromJava)}
};
QJniEnvironment env;
QVERIFY(env.registerNativeMethods(javaTestClass, methods, 1));
QJniObject QtString = QJniObject::fromString(registerNativesString);
QJniObject::callStaticMethod<void>(javaTestClass,
"appendJavaToString",
"(Ljava/lang/String;)V",
QtString.object<jstring>());
QTest::qWait(200);
QVERIFY(registerNativesString == QStringLiteral("From Java: Qt"));
}
QTEST_MAIN(tst_QJniEnvironment)
#include "tst_qjnienvironment.moc"
|
