Make github action test different Docker image versions

.github/workflows/test.yml

@@ -4,8 +4,8 @@ on: [push, pull_request]
 
 jobs:
 
-  build:
-    name: test
+  test-non-docker:
+    name: test non-docker
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -28,4 +28,30 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Test package
-        run: go test -v ./...
+        run: go test -run ^(?!Docker).*$ -v ./...
+
+  test-docker:
+    name: test docker
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: ['1.23.x']
+        typst-docker-image: 
+          - 'ghcr.io/typst/typst:v0.12.0'
+          - 'ghcr.io/typst/typst:v0.13.0'
+          - 'ghcr.io/typst/typst:v0.13.1'
+          - 'ghcr.io/typst/typst:0.14.0'
+
+    steps:
+      - name: Set up Go ${{ matrix.go-version }}
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Test package
+        run: go test -run ^Docker.*$ -v ./...
+        env:
+          TYPST_DOCKER_IMAGE: ${{ matrix.typst-docker-image }}

docker_test.go

@@ -8,6 +8,7 @@ package typst_test
 import (
 	"bytes"
 	"image"
+	"os"
 	"path/filepath"
 	"strconv"
 	"testing"
@@ -15,8 +16,16 @@ import (
 	"github.com/Dadido3/go-typst"
 )
 
+// Returns the TYPST_DOCKER_IMAGE environment variable.
+// If that's not set, it will return an empty string, which makes the tests default to typst.DockerDefaultImage.
+func typstDockerImage() string {
+	return os.Getenv("TYPST_DOCKER_IMAGE")
+}
+
 func TestDocker_VersionString(t *testing.T) {
-	caller := typst.Docker{}
+	caller := typst.Docker{
+		Image: typstDockerImage(),
+	}
 
 	_, err := caller.VersionString()
 	if err != nil {
@@ -25,7 +34,9 @@ func TestDocker_VersionString(t *testing.T) {
 }
 
 func TestDocker_Fonts(t *testing.T) {
-	caller := typst.Docker{}
+	caller := typst.Docker{
+		Image: typstDockerImage(),
+	}
 
 	result, err := caller.Fonts(nil)
 	if err != nil {
@@ -37,7 +48,9 @@ func TestDocker_Fonts(t *testing.T) {
 }
 
 func TestDocker_FontsWithOptions(t *testing.T) {
-	caller := typst.Docker{}
+	caller := typst.Docker{
+		Image: typstDockerImage(),
+	}
 
 	result, err := caller.Fonts(&typst.OptionsFonts{IgnoreSystemFonts: true})
 	if err != nil {
@@ -53,7 +66,9 @@ func TestDocker_Compile(t *testing.T) {
 	const inches = 1
 	const ppi = 144
 
-	typstCaller := typst.Docker{}
+	typstCaller := typst.Docker{
+		Image: typstDockerImage(),
+	}
 
 	r := bytes.NewBufferString(`#set page(width: ` + strconv.FormatInt(inches, 10) + `in, height: ` + strconv.FormatInt(inches, 10) + `in, margin: (x: 1mm, y: 1mm))
 = Test
@@ -88,6 +103,7 @@ func TestDocker_Compile(t *testing.T) {
 // Test basic compile functionality with a given working directory.
 func TestDocker_CompileWithWorkingDir(t *testing.T) {
 	typstCaller := typst.Docker{
+		Image:            typstDockerImage(),
 		WorkingDirectory: filepath.Join(".", "test-files"),
 		Volumes:          []string{".:/markup"},
 	}