diff --git a/.github/workflows/jq.yml b/.github/workflows/jq.yml
new file mode 100644
index 00000000..887aa808
--- /dev/null
+++ b/.github/workflows/jq.yml
@@ -0,0 +1,39 @@
+name: jq
+
+on:
+    pull_request:
+        branches:
+            - main
+        paths:
+            - jq/*
+
+jobs:
+    test-jq-translation:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v3
+
+            - name: Setup Rust Toolchain
+              uses: actions-rs/toolchain@v1
+              with:
+                  profile: minimal
+                  toolchain: stable
+                  override: true
+
+            # TODO: this step takes ~2m, consider using https://github.com/marketplace/actions/cargo-install
+            - name: Install jaq
+              run: |
+                  cargo install --locked --git https://github.com/01mf02/jaq
+
+            - name: Expect unit test to fail
+              working-directory: jq
+              run: |
+                  ! ./test-gilded-rose.sh
+
+            - name: Expect texttest fixture output (aka 'verify')
+              working-directory: jq
+              run: |
+                  jaq --arg days 31 -nr "$(cat gilded-rose.jq) $(cat texttest_fixture.jq)" |
+                    diff - ../texttests/ThirtyDays/stdout.gr
diff --git a/jq/texttest_fixture.jq b/jq/texttest_fixture.jq
index 477147bb..12c08dc3 100644
--- a/jq/texttest_fixture.jq
+++ b/jq/texttest_fixture.jq
@@ -5,7 +5,7 @@
         { name: "Aged Brie", sell_in: 2, quality: 0 },
         { name: "Elixir of the Mongoose", sell_in: 5, quality: 7 },
         { name: "Sulfuras, Hand of Ragnaros", sell_in: 0, quality: 80 },
-        { name: "Sulfuras, Hand of Ragnaros", sell_in: 1, quality: 80 },
+        { name: "Sulfuras, Hand of Ragnaros", sell_in: -1, quality: 80 },
         { name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 15, quality: 20 },
         { name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 10, quality: 49 },
         { name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 5, quality: 49 },
@@ -14,9 +14,9 @@
     { items: ., day: 0 } |
     recurse(.day += 1 | .items = (.items | update_quality); .day < ($ARGS.named.days // 2 | tonumber)) |
     (
-        "",
         (["-------- day ", (.day | tostring), " --------"] | add),
         ("name, sellIn, quality"),
-        (.items[] | [.name, .sell_in, .quality | tostring] | join(", "))
+        (.items[] | [.name, .sell_in, .quality | tostring] | join(", ")),
+        ""
     )
 )