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-rw-r--r--tests/export-graph.nix29
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/export-graph.nix b/tests/export-graph.nix
new file mode 100644
index 000000000000..fdac9583db2c
--- /dev/null
+++ b/tests/export-graph.nix
@@ -0,0 +1,29 @@
+with import ./config.nix;
+
+rec {
+
+  printRefs =
+    ''
+      echo $exportReferencesGraph
+      while read path; do
+          read drv
+          read nrRefs
+          echo "$path has $nrRefs references"
+          echo "$path" >> $out
+          for ((n = 0; n < $nrRefs; n++)); do read ref; echo "ref $ref"; test -e "$ref"; done
+      done < refs
+    '';
+
+  foo."bar.runtimeGraph" = mkDerivation {
+    name = "dependencies";
+    builder = builtins.toFile "build-graph-builder" "${printRefs}";
+    exportReferencesGraph = ["refs" (import ./dependencies.nix)];
+  };
+
+  foo."bar.buildGraph" = mkDerivation {
+    name = "dependencies";
+    builder = builtins.toFile "build-graph-builder" "${printRefs}";
+    exportReferencesGraph = ["refs" (import ./dependencies.nix).drvPath];
+  };
+
+}