1 files changed, 70 insertions, 0 deletions
diff --git a/third_party/nix/tests/lang.sh b/third_party/nix/tests/lang.sh
new file mode 100644
index 000000000000..c797a2a74ed8
--- /dev/null
+++ b/third_party/nix/tests/lang.sh
@@ -0,0 +1,70 @@
+source common.sh
+
+export TEST_VAR=foo # for eval-okay-getenv.nix
+
+nix-instantiate --eval -E 'builtins.trace "Hello" 123' 2>&1 | grep -q Hello
+(! nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" 123' 2>&1 | grep -q Hello)
+nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" (throw "Foo")' 2>&1 | grep -q Hello
+
+set +x
+
+fail=0
+
+for i in lang/parse-fail-*.nix; do
+    echo "parsing $i (should fail)";
+    i=$(basename $i .nix)
+    if nix-instantiate --parse - < lang/$i.nix; then
+        echo "FAIL: $i shouldn't parse"
+        fail=1
+    fi
+done
+
+for i in lang/parse-okay-*.nix; do
+    echo "parsing $i (should succeed)";
+    i=$(basename $i .nix)
+    if ! nix-instantiate --parse - < lang/$i.nix > lang/$i.out; then
+        echo "FAIL: $i should parse"
+        fail=1
+    fi
+done
+
+for i in lang/eval-fail-*.nix; do
+    echo "evaluating $i (should fail)";
+    i=$(basename $i .nix)
+    if nix-instantiate --eval lang/$i.nix; then
+        echo "FAIL: $i shouldn't evaluate"
+        fail=1
+    fi
+done
+
+for i in lang/eval-okay-*.nix; do
+    echo "evaluating $i (should succeed)";
+    i=$(basename $i .nix)
+
+    if test -e lang/$i.exp; then
+        flags=
+        if test -e lang/$i.flags; then
+            flags=$(cat lang/$i.flags)
+        fi
+        if ! NIX_PATH=lang/dir3:lang/dir4 nix-instantiate $flags --eval --strict lang/$i.nix > lang/$i.out; then
+            echo "FAIL: $i should evaluate"
+            fail=1
+        elif ! diff lang/$i.out lang/$i.exp; then
+            echo "FAIL: evaluation result of $i not as expected"
+            fail=1
+        fi
+    fi
+
+    if test -e lang/$i.exp.xml; then
+        if ! nix-instantiate --eval --xml --no-location --strict \
+                lang/$i.nix > lang/$i.out.xml; then
+            echo "FAIL: $i should evaluate"
+            fail=1
+        elif ! cmp -s lang/$i.out.xml lang/$i.exp.xml; then
+            echo "FAIL: XML evaluation result of $i not as expected"
+            fail=1
+        fi
+    fi
+done
+
+exit $fail