Revamp test suite. (#59)

- General cleanup of tests (remove unused reference images, remove test cases that don't exist in resvg, add all remaining resvg test cases without reference images)
- Instead of using a custom test runner, we generate tests using Python. While it removes some flexibility in how we run the tests, it allows us to use cargo's native test runner, which has many advantages, such as being more consistent overall and also not quitting instantly if a test case panics.

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
         shell: bash
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get Rust toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -27,7 +27,7 @@ jobs:
           curl -LO https://github.com/bblanchon/pdfium-binaries/releases/download/chromium%2F5880/pdfium-linux-x64.tgz
           mkdir pdfium-linux-x64
           tar -xvzf ./pdfium-linux-x64.tgz -C pdfium-linux-x64
-          mv ./pdfium-linux-x64/lib/libpdfium.so ./tests/pdfium_lib
+          mv ./pdfium-linux-x64/lib/libpdfium.so ./tests/pdfium
 
       - name: Build svg2pdf
         run: cargo build --all --release
@@ -46,7 +46,7 @@ jobs:
     name: Check clippy, formatting, and documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - run: cargo clippy --all-targets

Cargo.toml

@@ -18,17 +18,13 @@ clap_complete = "4.4.3"
 clap_mangen = "0.2.14"
 fontdb = "0.16.0"
 image = { version = "0.24", default-features = false, features = ["jpeg", "png", "gif"] }
-indicatif = "0.17.5"
-lazy_static = "1.4.0"
 miniz_oxide = "0.7"
 once_cell = "1.18.0"
 oxipng = { version = "9", default-features = false, features = ["filetime", "parallel", "zopfli"] }
 pdf-writer = "0.9"
 pdfium-render = "0.8.6"
-regex = "1.8.4"
 termcolor = "1.2"
 usvg = { version = "0.38.0", default-features = false, features = ["text"] }
-walkdir = "2.3.3"
 tiny-skia = "0.11.3"
 resvg = { version = "0.38.0" }
 

tests/Cargo.toml

@@ -8,36 +8,12 @@ repository.workspace = true
 license.workspace = true
 publish = false
 
-[lib]
-test = false
-doctest = false
-
-[[test]]
-name = "tests"
-path = "src/tests.rs"
-harness = false
-
-[[bin]]
-name = "generate"
-path = "src/generate.rs"
-test = false
-
-[[bin]]
-name = "typst"
-path = "src/typst.rs"
-test = false
-
 [dependencies]
 fontdb = { workspace = true }
 svg2pdf = { workspace = true }
 usvg = { workspace = true }
-pdfium-render = { workspace = true }
-walkdir = { workspace = true }
-lazy_static = { workspace = true }
+pdfium-render = { workspace = true, features = ["sync"] }
 pdf-writer = { workspace = true }
 image = { workspace = true }
-indicatif = { workspace = true }
 oxipng = { workspace = true }
-clap = { workspace = true }
-termcolor = { workspace = true }
-regex = { workspace = true }
+once_cell = { workspace = true }