# Preparation
Install system libraries:
- libvips-dev (used in benchmarks)
Install additional toolchains:
- Arm64:
```shell
rustup target add aarch64-unknown-linux-gnu
```
- Wasm32:
```shell
rustup target add wasm32-wasi
```
Install [Wasmtime](https://wasmtime.dev/).
# Tests
Run tests with saving result images as files in `./data` directory:
```shell
SAVE_RESULT=1 cargo test
```
# Benchmarks
Run benchmarks to compare with other crates for image resizing and write results into
report files, such as `./benchmarks-x86_64.md`:
```shell
WRITE_COMPARE_RESULT=1 cargo bench -- Compare
```
If you want to use old benchmark results for other crates, you must add
env variable with number of days as a result lifetime:
```shell
WRITE_COMPARE_RESULT=1 RESULTS_LIFETIME=5 cargo bench -- Compare
```
# Wasm32
Specify build target in `.cargo/config.toml` file.
```toml
[build]
target = "wasm32-wasi"
```
Run tests:
```shell
CARGO_TARGET_WASM32_WASI_RUNNER="wasmtime --dir=. --" cargo test
```
Run tests with saving result images as files in `./data` directory:
```shell
CARGO_TARGET_WASM32_WASI_RUNNER="wasmtime --dir=. --env SAVE_RESULT=1 --" cargo test
```
Run a specific benchmark in `quick` mode:
```shell
CARGO_TARGET_WASM32_WASI_RUNNER="wasmtime --dir=. --" cargo bench --bench bench_resize -- --color=always --quick
```
Run benchmarks to compare with other crates for image resizing and write results into
report files, such as `./benchmarks-x86_64.md`:
```shell
CARGO_TARGET_WASM32_WASI_RUNNER="wasmtime --dir=. --env WRITE_COMPARE_RESULT=1 --" cargo bench --no-fail-fast -- --color=always Compare
```