Qt: Fix unit test by adding initial.test dep

* lang/qt/tests/t-keylist.cpp: Verify that GNUPGHOME is set.
* lang/qt/tests/initial.test: New dummy test.
* lang/qt/tests/Makefile.am: Add dependency to initial.test

--
Feels weird but this follows the pattern in tests/gpg/Makefile.am
and solves the problem that the environment is dirty.

lang/qt/tests/Makefile.am

@@ -22,7 +22,9 @@ GPG = gpg
 
 TESTS_ENVIRONMENT = GNUPGHOME=$(abs_builddir)
 
-TESTS = t-keylist
+EXTRA_DIST = initial.test
+
+TESTS = initial.test t-keylist
 
 moc_files = t-keylist.moc
 
@@ -38,7 +40,11 @@ AM_CPPFLAGS = -I$(top_builddir)/src @GPG_ERROR_CFLAGS@ \
               -I$(top_srcdir)/lang/cpp/src -I$(top_srcdir)/lang/qt/src \
               -DTOP_SRCDIR="$(top_srcdir)"
 
-check-local: ./t-keylist ./pubring-stamp
+check-local: ./pubring-stamp
+
+# To guarantee that check-local is run before any tests we
+# add this dependency:
+initial.test : check-local
 
 t_keylist_SOURCES = t-keylist.cpp t-keylist.h
 
@@ -58,7 +64,7 @@ export GNUPGHOME := $(abs_builddir)
 	             $(top_srcdir)/tests/gpg/secdemo.asc
 	$(GPG) --no-permission-warning \
            --import $(top_srcdir)/tests/gpg/pubdemo.asc
-	-$(GPG) --no-permission-warning \
+	$(GPG) --no-permission-warning \
            --import $(top_srcdir)/tests/gpg/secdemo.asc
 	touch ./pubring-stamp
 

lang/qt/tests/initial.test

@@ -0,0 +1,2 @@
+#!/bin/sh
+exit 0

lang/qt/tests/t-keylist.cpp

@@ -23,6 +23,12 @@ private Q_SLOTS:
         const QString kId = QLatin1String(keys.front().keyID());
         Q_ASSERT (kId == QStringLiteral("2D727CC768697734"));
     }
+
+    void initTestCase()
+    {
+        const QString gpgHome = qgetenv("GNUPGHOME");
+        QVERIFY2(!gpgHome.isEmpty(), "GNUPGHOME environment variable is not set.");
+    }
 };
 
 QTEST_MAIN(KeyListTest)