ci: Run tests on all platforms in the Docker image

Dockerfile

@@ -37,6 +37,7 @@ RUN apt update && apt install -y --no-install-recommends \
   libc6-dev-arm64-cross \
   libc6-dev-amd64-cross \
   libc6-dev-armhf-cross \
+  qemu-user \
   && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
@@ -44,15 +45,19 @@ RUN cargo install --locked cargo-chef
 
 ENV \
   CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER=x86_64-linux-gnu-gcc \
+  CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER="qemu-x86_64 -L /usr/x86_64-linux-gnu" \
   CC_x86_64_unknown_linux_gnu=x86_64-linux-gnu-gcc \
   CXX_x86_64_unknown_linux_gnu=x86_64-linux-gnu-g++ \
   CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc \
+  CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_RUNNER="qemu-aarch64 -L /usr/aarch64-linux-gnu" \
   CC_aarch64_unknown_linux_gnu=aarch64-linux-gnu-gcc \
   CXX_aarch64_unknown_linux_gnu=aarch64-linux-gnu-g++ \
   CARGO_TARGET_ARM_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
+  CARGO_TARGET_ARM_UNKNOWN_LINUX_GNUEABIHF_RUNNER="qemu-arm -L /usr/arm-linux-gnueabihf" \
   CC_arm_unknown_linux_gnueabihf=arm-linux-gnueabihf-gcc \
   CXX_arm_unknown_linux_gnueabihf=arm-linux-gnueabihf-g++ \
   CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
+  CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_RUNNER="qemu-arm -L /usr/arm-linux-gnueabihf" \
   CC_armv7_unknown_linux_gnueabihf=arm-linux-gnueabihf-gcc \
   CXX_armv7_unknown_linux_gnueabihf=arm-linux-gnueabihf-g++
 
@@ -75,7 +80,7 @@ COPY . .
 RUN cargo chef prepare --recipe-path recipe.json
 
 ## Actual build stage ##
-FROM --platform=${BUILDPLATFORM} chef AS builder 
+FROM --platform=${BUILDPLATFORM} chef AS builder
 
 ARG TARGETPLATFORM
 
@@ -97,6 +102,23 @@ RUN cargo build \
 # Move the binary to avoid having to guess its name in the next stage
 RUN mv target/$(/docker-arch-to-rust-target.sh "${TARGETPLATFORM}")/release/mas-cli /mas-cli
 
+## Stage to run unit tests ##
+FROM --platform=${BUILDPLATFORM} chef AS test 
+
+ARG TARGETPLATFORM
+
+# Build dependencies
+COPY --from=planner /app/recipe.json recipe.json
+RUN cargo chef cook \
+  --recipe-path recipe.json \
+  --target $(/docker-arch-to-rust-target.sh "${TARGETPLATFORM}")
+
+# Run the tests
+COPY . .
+COPY --from=static-files /app/crates/static-files/public /app/crates/static-files/public
+RUN cargo test \
+  --target $(/docker-arch-to-rust-target.sh "${TARGETPLATFORM}")
+
 ## Runtime stage, debug variant ##
 FROM --platform=${TARGETPLATFORM} gcr.io/distroless/cc-debian${DEBIAN_VERSION}:debug-nonroot AS debug
 COPY --from=builder /mas-cli /mas-cli

docker-bake.hcl

@@ -12,6 +12,11 @@ target "debug" {
   target = "debug"
 }
 
+target "test" {
+  inherits = ["default"]
+  target = "test"
+}
+
 target "release" {
   inherits = ["default"]
   platforms = [
@@ -22,7 +27,7 @@ target "release" {
 }
 
 // This is what is baked by GitHub Actions
-group "gha" { targets = ["gha-regular", "gha-debug"] }
+group "gha" { targets = ["gha-regular", "gha-debug", "gha-test"] }
 
 target "gha-base" {
   inherits = ["release"]
@@ -37,3 +42,7 @@ target "gha-regular" {
 target "gha-debug" {
   inherits = ["gha-base", "debug", "docker-metadata-action-debug"]
 }
+
+target "gha-test" {
+  inherits = ["gha-base", "test"]
+}