138 (#139)

* #138 fix: add wasmcov build step before test

Add cargo wasmcov build step with wasm32-unknown-unknown target before running tests.
This ensures coverage instrumentation is properly set up for WASM code.

* #138 fix: use --lib flag to avoid building bins for wasm32

reqwest::blocking is not available for wasm32 target, causing build failure for update_readme bin.
Build only the library with --lib flag.

* #130 fix: add --package flag to wasmcov commands to exclude demo workspace

* #130 fix: remove WASM coverage - no working solution exists in 2025

- Remove wasm-coverage job from CI workflow
- Remove wasmcov dependency from Cargo.toml
- Remove capture_coverage function from lib.rs
- Remove wasm flag from codecov.yml
- Keep only native coverage which works correctly

Reason: WASM test coverage with wasm-bindgen-test is experimental,
unstable, and has no working tools or public examples. Even
wasm-bindgen itself disables coverage where possible.

* fail

* #138 fix: remove wasm-coverage artifact and add to .gitignore

Author: RAprogramm

.github/workflows/reusable-ci.yml

@@ -224,51 +224,3 @@ jobs:
           files: lcov.info
           fail_ci_if_error: true
           verbose: true
-          flags: native
-
-  wasm-coverage:
-    name: Coverage (WASM)
-    runs-on: ubuntu-latest
-    needs: setup
-    steps:
-      - uses: actions/checkout@v5
-
-      - name: Install Rust nightly
-        uses: dtolnay/rust-toolchain@v1
-        with:
-          toolchain: nightly
-          targets: wasm32-unknown-unknown
-          components: llvm-tools-preview
-
-      - name: Cache cargo
-        uses: Swatinem/rust-cache@v2
-        with:
-          shared-key: "nightly-wasm"
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-
-      - name: Install wasmcov
-        shell: bash
-        run: |
-          set -euo pipefail
-          cargo +nightly install wasmcov
-
-      - name: Run WASM tests with coverage
-        shell: bash
-        run: |
-          set -euo pipefail
-          cargo +nightly wasmcov test -- --all-features -- --test-threads=1
-
-      - name: Generate WASM coverage report
-        shell: bash
-        run: |
-          set -euo pipefail
-          cargo +nightly wasmcov report -- export --format=lcov > wasm-lcov.info || echo "SF:dummy" > wasm-lcov.info
-
-      - name: Upload WASM coverage to Codecov
-        uses: codecov/codecov-action@v5
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: wasm-lcov.info
-          fail_ci_if_error: false
-          verbose: true
-          flags: wasm

.gitignore

@@ -1,2 +1,3 @@
 /target
 /wasmcov
+wasm-coverage

Cargo.lock

@@ -85,4 +85,3 @@ members = ["demo"]
 [dev-dependencies]
 wasm-bindgen-test = "0.3"
 wasm-bindgen-futures = "0.4"
-wasmcov = "0.2"

Cargo.toml

@@ -19,10 +19,6 @@ flags:
     paths:
       - src/
     carryforward: true
-  wasm:
-    paths:
-      - src/
-    carryforward: true
 
 comment:
   layout: "header,diff,flags,components,files,footer"

codecov.yml

@@ -31,22 +31,3 @@ pub mod yew;
 
 #[cfg(feature = "leptos")]
 pub mod leptos;
-
-/// Captures code coverage data for WASM builds.
-///
-/// This function is used by wasmcov to collect coverage information during test
-/// execution. It should not be called directly in application code.
-///
-/// # Safety
-///
-/// This function is marked as unsafe due to FFI requirements.
-/// It is only exported for wasm32 targets and called by the wasmcov test
-/// harness.
-#[cfg(all(target_family = "wasm", test))]
-#[no_mangle]
-pub unsafe extern "C" fn capture_coverage() {
-    let mut coverage = Vec::new();
-    if let Err(e) = wasmcov::minicov::capture_coverage(&mut coverage) {
-        web_sys::console::error_1(&format!("Coverage capture failed: {}", e).into());
-    }
-}