chore: test preserving build instructions (in #27, #28)

Author: shinsenter

test/__snapshots__/issues/preserve-environment-variables.expected.dockerfile

@@ -0,0 +1,9 @@
+# See: https://codeberg.org/devthefuture/dockerfile-x/issues/28
+FROM debian:latest
+ARG  DEBUG
+RUN <<'EOF'
+DEBIAN_FRONTEND=noninteractive \
+DEBCONF_NOWARNINGS=yes \
+APT_LISTCHANGES_FRONTEND=none \
+apt-get update
+EOF

test/__snapshots__/issues/preserve-instructions.expected.dockerfile

@@ -0,0 +1,30 @@
+# See: https://codeberg.org/devthefuture/dockerfile-x/issues/27
+FROM debian:latest
+ARG  DEBUG
+RUN <<'EOF'
+[ -z "$DEBUG" ] || set -ex && set -e
+if command -v something; then
+    something \
+        --arg1 test1 \
+        --arg2 test2
+else
+    echo "something not found"
+fi
+EOF
+RUN [ -x "/hogehoge" ] \
+    && echo "OK" \
+    || true
+ARG DEBUG1
+ENV DEBUG2=1 DEBUG3=2 DEBUG4=3 \
+    TEST1=1 TEST2=2 TEST3=3 \
+    TIMEZONE=Asia/Tokyo
+RUN <<TEST
+[ -z "$DEBUG" ] || set -ex && set -e
+if command -v something; then
+    something \
+        --arg1 test1 \
+        --arg2 test2
+else
+    echo "something not found"
+fi
+TEST

test/fixs.js

@@ -16,4 +16,10 @@ describe("issues", () => {
   it("include-target", async () => {
     await testFixture("issue1")
   })
+  it("preserve-instructions", async () => {
+    await testFixture("issue27")
+  })
+  it("preserve-environment-variables", async () => {
+    await testFixture("issue28")
+  })
 })

test/fixtures/issue27.dockerfile

@@ -0,0 +1,36 @@
+# syntax=devthefuture/dockerfile-x
+# See: https://codeberg.org/devthefuture/dockerfile-x/issues/27
+FROM debian:latest
+ARG  DEBUG
+
+RUN <<'EOF'
+[ -z "$DEBUG" ] || set -ex && set -e
+if command -v something; then
+    something \
+        --arg1 test1 \
+        --arg2 test2
+else
+    echo "something not found"
+fi
+EOF
+
+RUN [ -x "/hogehoge" ] \
+    && echo "OK" \
+    || true
+
+ARG DEBUG1
+
+ENV DEBUG2=1 DEBUG3=2 DEBUG4=3 \
+    TEST1=1 TEST2=2 TEST3=3 \
+    TIMEZONE=Asia/Tokyo
+
+RUN <<TEST
+[ -z "$DEBUG" ] || set -ex && set -e
+if command -v something; then
+    something \
+        --arg1 test1 \
+        --arg2 test2
+else
+    echo "something not found"
+fi
+TEST

test/fixtures/issue28.dockerfile

@@ -0,0 +1,11 @@
+# syntax=devthefuture/dockerfile-x
+# See: https://codeberg.org/devthefuture/dockerfile-x/issues/28
+FROM debian:latest
+ARG  DEBUG
+
+RUN <<'EOF'
+DEBIAN_FRONTEND=noninteractive \
+DEBCONF_NOWARNINGS=yes \
+APT_LISTCHANGES_FRONTEND=none \
+apt-get update
+EOF