1 files changed, 35 insertions, 0 deletions
diff --git a/tests/functional/impure-eval.sh b/tests/functional/impure-eval.sh
new file mode 100644
index 000000000..6c72f01d7
--- /dev/null
+++ b/tests/functional/impure-eval.sh
@@ -0,0 +1,35 @@
+source common.sh
+
+export REMOTE_STORE="dummy://"
+
+simpleTest () {
+    local expr=$1; shift
+    local result=$1; shift
+    # rest, extra args
+
+    [[ "$(nix eval --impure --raw "$@" --expr "$expr")" == "$result" ]]
+}
+
+# `builtins.storeDir`
+
+## Store dir follows `store` store setting
+simpleTest 'builtins.storeDir' '/foo' --store "$REMOTE_STORE?store=/foo"
+simpleTest 'builtins.storeDir' '/bar' --store "$REMOTE_STORE?store=/bar"
+
+# `builtins.currentSystem`
+
+## `system` alone affects by default
+simpleTest 'builtins.currentSystem' 'foo' --system 'foo'
+simpleTest 'builtins.currentSystem' 'bar' --system 'bar'
+
+## `system` affects if `eval-system` is an empty string
+simpleTest 'builtins.currentSystem' 'foo' --system 'foo' --eval-system ''
+simpleTest 'builtins.currentSystem' 'bar' --system 'bar' --eval-system ''
+
+## `eval-system` alone affects
+simpleTest 'builtins.currentSystem' 'foo' --eval-system 'foo'
+simpleTest 'builtins.currentSystem' 'bar' --eval-system 'bar'
+
+## `eval-system` overrides `system`
+simpleTest 'builtins.currentSystem' 'bar' --system 'foo' --eval-system 'bar'
+simpleTest 'builtins.currentSystem' 'baz' --system 'foo' --eval-system 'baz'