Fix exports from multiplexed products

While we did set up the dependencies between multiplexed products
correctly, the *module* (i.e. Export item) that we pulled in was always
the same one and corresponded to the wrong product variant in most
cases.

Change-Id: If42cf7e946689259c7433d81fd35d8798919eb15
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

3 files changed, 59 insertions, 1 deletions

diff --git a/tests/auto/language/testdata/multiplexed-exports.qbs b/tests/auto/language/testdata/multiplexed-exports.qbs
new file mode 100644
index 000000000..923ddc2ab
--- /dev/null
+++ b/tests/auto/language/testdata/multiplexed-exports.qbs
@@ -0,0 +1,20 @@
+import qbs
+
+Project {
+    Product {
+        name: "dep"
+        multiplexByQbsProperties: ["buildVariants"]
+        qbs.buildVariants: ["debug", "release"]
+        property string includeDir: qbs.buildVariant === "debug" ? "/d" : "/r"
+        Export {
+            Depends { name: "cpp" }
+            cpp.includePaths: product.includeDir
+        }
+    }
+    Product {
+        name: "p"
+        Depends { name: "dep" }
+        multiplexByQbsProperties: ["buildVariants"]
+        qbs.buildVariants: ["debug", "release"]
+    }
+}
diff --git a/tests/auto/language/tst_language.cpp b/tests/auto/language/tst_language.cpp
index f1e21cc26..bfbb0c525 100644
--- a/tests/auto/language/tst_language.cpp
+++ b/tests/auto/language/tst_language.cpp
@@ -68,6 +68,7 @@
 #include <QtCore/qprocess.h>
 
 #include <algorithm>
+#include <set>
 #include <utility>
 #include <vector>
 
@@ -832,7 +833,7 @@ void TestLanguage::erroneousFiles_data()
             << "original-in-product-property.qbs"
                ":4:21.*The special value 'original' can only be used with module properties.";
     QTest::newRow("mismatching-multiplex-dependency")
-            << "mismatching-multiplex-dependency.qbs:9:5 Dependency from product "
+            << "mismatching-multiplex-dependency.qbs:9:5.*Dependency from product "
                "'b \\{\"architecture\":\"mips\"\\}' to product 'a \\{\"architecture\":\"mips\"\\}'"
                " not fulfilled.";
 }
@@ -1887,6 +1888,42 @@ void TestLanguage::modules()
     QCOMPARE(product->productProperties.value("foo").toString(), expectedProductProperty);
 }
 
+void TestLanguage::multiplexedExports()
+{
+    bool exceptionCaught = false;
+    try {
+        SetupProjectParameters params = defaultParameters;
+        params.setProjectFilePath(testProject("multiplexed-exports.qbs"));
+        const TopLevelProjectPtr project = loader->loadProject(params);
+        QVERIFY(!!project);
+        const auto products = project->allProducts();
+        QCOMPARE(products.size(), 4);
+        std::set<ResolvedProductPtr> pVariants;
+        for (const auto &product : products) {
+            if (product->name != "p")
+                continue;
+            static const auto buildVariant = [](const ResolvedProductConstPtr &p) {
+                return p->moduleProperties->qbsPropertyValue("buildVariant").toString();
+            };
+            static const auto cppIncludePaths = [](const ResolvedProductConstPtr &p) {
+                return p->moduleProperties->moduleProperty("cpp", "includePaths").toStringList();
+            };
+            if (buildVariant(product) == "debug") {
+                pVariants.insert(product);
+                QCOMPARE(cppIncludePaths(product), QStringList("/d"));
+            } else if (buildVariant(product) == "release") {
+                pVariants.insert(product);
+                QCOMPARE(cppIncludePaths(product), QStringList("/r"));
+            }
+        }
+        QCOMPARE(int(pVariants.size()), 2);
+    } catch (const ErrorInfo &e) {
+        exceptionCaught = true;
+        qDebug() << e.toString();
+    }
+    QCOMPARE(exceptionCaught, false);
+}
+
 void TestLanguage::multiplexingByProfile()
 {
     QFETCH(QString, projectFileName);
diff --git a/tests/auto/language/tst_language.h b/tests/auto/language/tst_language.h
index edbebef5e..c80152f28 100644
--- a/tests/auto/language/tst_language.h
+++ b/tests/auto/language/tst_language.h
@@ -126,6 +126,7 @@ private slots:
     void moduleScope();
     void modules_data();
     void modules();
+    void multiplexedExports();
     void multiplexingByProfile();
     void multiplexingByProfile_data();
     void nonApplicableModulePropertyInProfile();