Add test files for QT_TR_NOOP context

Change-Id: I7cf76aa8ff774c8eff7956739909104dd390f6a8
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 62a3420631881d0b651358de07c3a0854b1b9b1d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

7 files changed, 486 insertions, 1 deletions

diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/expectedoutput.txt b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/expectedoutput.txt
new file mode 100644
index 000000000..7d66b2066
--- /dev/null
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/expectedoutput.txt
@@ -0,0 +1,4 @@
+.*[/\\]lupdate[/\\]testdata[/\\]good[/\\]parsecpp_clang_only[/\\]test_QT_TR_NOOP_context.cpp:51:26: QT_TR_NOOP cannot be called without context\. The call is ignored \(missing Q_OBJECT maybe\?\)
+.*[/\\]lupdate[/\\]testdata[/\\]good[/\\]parsecpp_clang_only[/\\]test_QT_TR_NOOP_context.cpp:91:26: QT_TR_NOOP cannot be called without context\. The call is ignored \(missing Q_OBJECT maybe\?\)
+.*[/\\]lupdate[/\\]testdata[/\\]good[/\\]parsecpp_clang_only[/\\]test_QT_TR_NOOP_context_bis.cpp:51:26: QT_TR_NOOP cannot be called without context\. The call is ignored \(missing Q_OBJECT maybe\?\)
+.*[/\\]lupdate[/\\]testdata[/\\]good[/\\]parsecpp_clang_only[/\\]test_QT_TR_NOOP_context_bis.cpp:91:26: QT_TR_NOOP cannot be called without context\. The call is ignored \(missing Q_OBJECT maybe\?\)
diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/my_include.h b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/my_include.h
new file mode 100644
index 000000000..53fc989e3
--- /dev/null
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/my_include.h
@@ -0,0 +1,33 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications 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 <QtCore>
+
+class Foo
+{
+  Q_OBJECT
+};
diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/project.pro b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/project.pro
new file mode 100644
index 000000000..6d72286b6
--- /dev/null
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/project.pro
@@ -0,0 +1,4 @@
+SOURCES += test_QT_TR_NOOP_context.cpp
+SOURCES += test_QT_TR_NOOP_context_bis.cpp
+
+TRANSLATIONS = project.ts
diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/project.ts.result b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/project.ts.result
new file mode 100644
index 000000000..0701b9b58
--- /dev/null
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/project.ts.result
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1">
+<context>
+    <name>Foo</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="37"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="37"/>
+        <source>context Foo. noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+<context>
+    <name>IN_NESTED</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="61"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="61"/>
+        <source>context IN_NESTED. tr</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="62"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="62"/>
+        <source>context IN_NESTED. noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+<context>
+    <name>ONLY_Q</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="44"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="44"/>
+        <source>context ONLY_Q. noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message numerus="yes">
+        <location filename="test_QT_TR_NOOP_context.cpp" line="45"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="45"/>
+        <source>context ONLY_Q. noop N</source>
+        <translation type="unfinished">
+            <numerusform></numerusform>
+        </translation>
+    </message>
+</context>
+<context>
+    <name>WithQDeclareTr::Nested</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="74"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="74"/>
+        <source>context WithQDeclareTr::Nested. tr</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="75"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="75"/>
+        <source>context WithQDeclareTr::Nested. noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+<context>
+    <name>my_arg</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="63"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="63"/>
+        <source>context my_arg. translate_noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+<context>
+    <name>test2::BB</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="114"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="114"/>
+        <source>context test2::BB. tr</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="115"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="115"/>
+        <source>context test2::BB. noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+<context>
+    <name>test3::D</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="137"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="137"/>
+        <source>context test3::D. tr</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="138"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="138"/>
+        <source>context test3::D. noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+<context>
+    <name>test4::A::B::C</name>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="158"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="158"/>
+        <source>context is test4::A::B::C. tr</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="test_QT_TR_NOOP_context.cpp" line="159"/>
+        <location filename="test_QT_TR_NOOP_context_bis.cpp" line="159"/>
+        <source>context is test4::A::B::C. noop</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+</TS>
diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/test_QT_TR_NOOP_context.cpp b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/test_QT_TR_NOOP_context.cpp
new file mode 100644
index 000000000..ea48000ac
--- /dev/null
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/test_QT_TR_NOOP_context.cpp
@@ -0,0 +1,165 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications 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 <QtCore>
+#include "my_include.h"
+
+int X = 111222332444;
+
+// Q_OBJECT declared in an other file
+class FooChild : public Foo
+{
+    const char *c_noop = QT_TR_NOOP("context Foo. noop");
+};
+
+// No Q_OBJECT. Q_DECLARE_TR_FUNCTIONS. It is enough for tr, it is enough for QT_TR_NOOP
+class OnlyQDeclare
+{
+    Q_DECLARE_TR_FUNCTIONS(ONLY_Q)
+    const char *c_noop = QT_TR_NOOP("context ONLY_Q. noop");
+    const char *c_noop_n = QT_TR_N_NOOP("context ONLY_Q. noop N");
+};
+
+// Show the message warning that the QT_TR_NOOP is ignored because no context could be found.
+class Nothing
+{
+    const char *c_noop = QT_TR_NOOP("context Nothing. noop with no Q_OBJECT nor Q_DECLARE_TR_FUNCTIONS");
+};
+
+// The closest Q_OBJECT or Q_DECLARE_TR_FUNCTIONS gives the context
+class WithQObject
+{
+  Q_OBJECT
+  class Nested
+  {
+    Q_DECLARE_TR_FUNCTIONS(IN_NESTED)
+    QString c_tr = tr("context IN_NESTED. tr");
+    const char *c_noop = QT_TR_NOOP("context IN_NESTED. noop");
+    const char *c_noop_translate = QT_TRANSLATE_NOOP("my_arg", "context my_arg. translate_noop");
+  };
+};
+
+// The closest Q_OBJECT or Q_DECLARE_TR_FUNCTIONS gives the context
+class WithQDeclareTr
+{
+  Q_DECLARE_TR_FUNCTIONS(A_CONTEXT)
+  class Nested
+  {
+    Q_OBJECT
+    QString c_tr = tr("context WithQDeclareTr::Nested. tr");
+    const char *c_noop = QT_TR_NOOP("context WithQDeclareTr::Nested. noop");
+  };
+};
+
+// Case where Q_OBJECT is not seen. Behavior reproduces tr function behavior
+namespace test1 {
+  class AA
+  {
+   Q_OBJECT
+  public:
+    class A {};
+  };
+
+  class B : public AA::A
+  {
+    //QString c_tr = tr(" the Q_OBJECT is not seen"); // this will generate an error.
+    const char *c_noop = QT_TR_NOOP("the Q_OBJECT is not seen"); // Once exploring the bases of B (that is AA:A)
+                                                        // we are not looking for the parents
+                                                        // AA is the parent of A in terms of CXXContextDecl::getParent()
+                                                        // This reproduced tr behavior.
+  };
+}
+
+namespace test2 {
+  class AA
+  {
+    Q_OBJECT
+  public:
+    class A {};
+  };
+
+  class C {};
+
+  class BB
+  {
+    Q_OBJECT
+  public:
+    class B : public AA::A, public C
+    {
+      QString c_tr = tr("context test2::BB. tr");
+      const char *c_noop = QT_TR_NOOP("context test2::BB. noop");
+    };
+  };
+}
+
+namespace test3 {
+  class AA
+  {
+    Q_OBJECT
+  public:
+    class A {};
+  };
+
+  class D {Q_OBJECT};
+  class C : public D {};
+
+  class BB
+  {
+    Q_OBJECT
+  public:
+    class B : public AA::A, public C
+    {
+      QString c_tr = tr("context test3::D. tr");
+      const char *c_noop = QT_TR_NOOP("context test3::D. noop");
+    };
+  };
+}
+
+namespace test4 {
+
+  class A
+  {
+    Q_OBJECT
+  public:
+    class B
+    {
+    public:
+      class C
+      {
+    Q_OBJECT
+      public:
+    class D
+    {
+      QString c_tr = tr("context is test4::A::B::C. tr");
+      const char *c_noop = QT_TR_NOOP("context is test4::A::B::C. noop");
+    };
+      };
+    };
+  };
+
+}
diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/test_QT_TR_NOOP_context_bis.cpp b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/test_QT_TR_NOOP_context_bis.cpp
new file mode 100644
index 000000000..8df5893ed
--- /dev/null
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp_clang_only/test_QT_TR_NOOP_context_bis.cpp
@@ -0,0 +1,165 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications 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 <QtCore>
+#include "my_include.h"
+// Testing with two files to check that patch https://codereview.qt-project.org/c/qt/qttools/+/338709/1..3 still works
+int X = 111222332444;
+
+// Q_OBJECT declared in an other file
+class FooChild : public Foo
+{
+    const char *c_noop = QT_TR_NOOP("context Foo. noop");
+};
+
+// No Q_OBJECT. Q_DECLARE_TR_FUNCTIONS. It is enough for tr, it is enough for QT_TR_NOOP
+class OnlyQDeclare
+{
+    Q_DECLARE_TR_FUNCTIONS(ONLY_Q)
+    const char *c_noop = QT_TR_NOOP("context ONLY_Q. noop");
+    const char *c_noop_n = QT_TR_N_NOOP("context ONLY_Q. noop N");
+};
+
+// Show the message warning that the QT_TR_NOOP is ignored because no context could be found.
+class Nothing
+{
+    const char *c_noop = QT_TR_NOOP("context Nothing. noop with no Q_OBJECT nor Q_DECLARE_TR_FUNCTIONS");
+};
+
+// The closest Q_OBJECT or Q_DECLARE_TR_FUNCTIONS gives the context
+class WithQObject
+{
+  Q_OBJECT
+  class Nested
+  {
+    Q_DECLARE_TR_FUNCTIONS(IN_NESTED)
+    QString c_tr = tr("context IN_NESTED. tr");
+    const char *c_noop = QT_TR_NOOP("context IN_NESTED. noop");
+    const char *c_noop_translate = QT_TRANSLATE_NOOP("my_arg", "context my_arg. translate_noop");
+  };
+};
+
+// The closest Q_OBJECT or Q_DECLARE_TR_FUNCTIONS gives the context
+class WithQDeclareTr
+{
+  Q_DECLARE_TR_FUNCTIONS(A_CONTEXT)
+  class Nested
+  {
+    Q_OBJECT
+    QString c_tr = tr("context WithQDeclareTr::Nested. tr");
+    const char *c_noop = QT_TR_NOOP("context WithQDeclareTr::Nested. noop");
+  };
+};
+
+// Case where Q_OBJECT is not seen. Behavior reproduces tr function behavior
+namespace test1 {
+  class AA
+  {
+   Q_OBJECT
+  public:
+    class A {};
+  };
+
+  class B : public AA::A
+  {
+    //QString c_tr = tr(" the Q_OBJECT is not seen"); // this will generate an error.
+    const char *c_noop = QT_TR_NOOP("the Q_OBJECT is not seen"); // Once exploring the bases of B (that is AA:A)
+                                                        // we are not looking for the parents
+                                                        // AA is the parent of A in terms of CXXContextDecl::getParent()
+                                                        // This reproduced tr behavior.
+  };
+}
+
+namespace test2 {
+  class AA
+  {
+    Q_OBJECT
+  public:
+    class A {};
+  };
+
+  class C {};
+
+  class BB
+  {
+    Q_OBJECT
+  public:
+    class B : public AA::A, public C
+    {
+      QString c_tr = tr("context test2::BB. tr");
+      const char *c_noop = QT_TR_NOOP("context test2::BB. noop");
+    };
+  };
+}
+
+namespace test3 {
+  class AA
+  {
+    Q_OBJECT
+  public:
+    class A {};
+  };
+
+  class D {Q_OBJECT};
+  class C : public D {};
+
+  class BB
+  {
+    Q_OBJECT
+  public:
+    class B : public AA::A, public C
+    {
+      QString c_tr = tr("context test3::D. tr");
+      const char *c_noop = QT_TR_NOOP("context test3::D. noop");
+    };
+  };
+}
+
+namespace test4 {
+
+  class A
+  {
+    Q_OBJECT
+  public:
+    class B
+    {
+    public:
+      class C
+      {
+    Q_OBJECT
+      public:
+    class D
+    {
+      QString c_tr = tr("context is test4::A::B::C. tr");
+      const char *c_noop = QT_TR_NOOP("context is test4::A::B::C. noop");
+    };
+      };
+    };
+  };
+
+}
diff --git a/tests/auto/linguist/lupdate/tst_lupdate.cpp b/tests/auto/linguist/lupdate/tst_lupdate.cpp
index 10d640482..57d7c087f 100644
--- a/tests/auto/linguist/lupdate/tst_lupdate.cpp
+++ b/tests/auto/linguist/lupdate/tst_lupdate.cpp
@@ -235,7 +235,7 @@ void tst_lupdate::good_data()
     QSet<QString> ignoredTests = {
         "lacksqobject_clang_parser", "parsecontexts_clang_parser", "parsecpp2_clang_parser",
         "parsecpp_clang_parser",     "prefix_clang_parser",        "preprocess_clang_parser",
-    };
+        "parsecpp_clang_only"};
 
     // Add test rows for the "classic" lupdate
     for (const QString &dir : dirs) {