4 files changed, 62 insertions, 0 deletions
diff --git a/test cases/d/6 unittest/app.d b/test cases/d/6 unittest/app.d
new file mode 100644
index 0000000..71c6414
--- /dev/null
+++ b/test cases/d/6 unittest/app.d
@@ -0,0 +1,38 @@
+
+import std.stdio;
+
+uint getFour ()
+{
+    auto getTwo ()
+    {
+        return 1 + 1;
+    }
+
+    return getTwo () + getTwo ();
+}
+
+void main ()
+{
+    import core.stdc.stdlib : exit;
+
+    writeln ("Four: ", getFour ());
+    exit (4);
+}
+
+unittest
+{
+    writeln ("TEST");
+    import core.stdc.stdlib : exit;
+    import second_unit;
+
+    assert (getFour () > 2);
+    assert (getFour () == 4);
+
+    // this is a regression test for https://github.com/mesonbuild/meson/issues/3337
+    secondModuleTestFunc ();
+
+    // we explicitly terminate here to give the unittest program a different exit
+    // code than the main application has.
+    // (this prevents the regular main() from being executed)
+    exit (0);
+}
diff --git a/test cases/d/6 unittest/meson.build b/test cases/d/6 unittest/meson.build
new file mode 100644
index 0000000..49a0700
--- /dev/null
+++ b/test cases/d/6 unittest/meson.build
@@ -0,0 +1,8 @@
+project('D Unittests', 'd')
+
+e = executable('dapp', ['app.d', 'second_unit.d'], install : true)
+test('dapp_run', e, should_fail: true)
+
+e_test = executable('dapp_test', ['app.d', 'second_unit.d'],
+    d_unittest: true)
+test('dapp_test', e_test)
diff --git a/test cases/d/6 unittest/second_unit.d b/test cases/d/6 unittest/second_unit.d
new file mode 100644
index 0000000..fdb62a9
--- /dev/null
+++ b/test cases/d/6 unittest/second_unit.d
@@ -0,0 +1,10 @@
+
+void secondModuleTestFunc ()
+{
+    import std.stdio : writeln;
+
+    version (unittest)
+        writeln ("Hello!");
+    else
+        assert (0);
+}
diff --git a/test cases/d/6 unittest/test.json b/test cases/d/6 unittest/test.json
new file mode 100644
index 0000000..adc4d75
--- /dev/null
+++ b/test cases/d/6 unittest/test.json
@@ -0,0 +1,6 @@
+{
+  "installed": [
+    {"type": "exe", "file": "usr/bin/dapp"},
+    {"type": "pdb", "file": "usr/bin/dapp", "language": "d"}
+  ]
+}