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-rw-r--r--tests/ca/text-hashed-output.sh29
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diff --git a/tests/ca/text-hashed-output.sh b/tests/ca/text-hashed-output.sh
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+#!/usr/bin/env bash
+
+source common.sh
+
+# Globally enable the ca derivations experimental flag
+sed -i 's/experimental-features = .*/& ca-derivations ca-references/' "$NIX_CONF_DIR/nix.conf"
+
+# In the corresponding nix file, we have two derivations: the first, named root,
+# is a normal recursive derivation, while the second, named dependent, has the
+# new outputHashMode "text". Note that in "dependent", we don't refer to the
+# build output of root, but only to the path of the drv file. For this reason,
+# we only need to:
+#
+# - instantiate the root derivation
+# - build the dependent derivation
+# - check that the path of the output coincides with that of the original derivation
+
+drv=$(nix-instantiate --experimental-features ca-derivations ./text-hashed-output.nix -A root)
+nix show-derivation "$drv"
+
+drvDep=$(nix-instantiate --experimental-features ca-derivations ./text-hashed-output.nix -A dependent)
+nix show-derivation "$drvDep"
+
+out1=$(nix-build --experimental-features ca-derivations ./text-hashed-output.nix -A dependent --no-out-link)
+
+nix path-info $drv --derivation --json | jq
+nix path-info $out1 --derivation --json | jq
+
+test $out1 == $drv