Merge pull request #131 from RAprogramm/130

130

Author: RAprogramm

.github/workflows/reusable-ci.yml

@@ -188,7 +188,7 @@ jobs:
 
   # 📊 Coverage
   coverage:
-    name: Coverage
+    name: Coverage (Native)
     runs-on: ubuntu-latest
     needs: setup
     steps:
@@ -224,3 +224,52 @@ jobs:
           files: lcov.info
           fail_ci_if_error: true
           verbose: true
+          flags: native
+
+  # 📊 WASM Coverage
+  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
+
+      - name: Upload WASM coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: wasm-lcov.info
+          fail_ci_if_error: true
+          verbose: true
+          flags: wasm

.gitignore

@@ -1 +1,2 @@
 /target
+/wasmcov

Cargo.lock

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

Cargo.toml

@@ -23,17 +23,16 @@
 
 `telegram-webapp-sdk` provides a type-safe and ergonomic wrapper around the [Telegram Web Apps](https://core.telegram.org/bots/webapps) JavaScript API.
 
-> [!WARNING]
-> **Coverage Limitations**
+> [!NOTE]
+> **Comprehensive Coverage**
 >
-> This project is primarily WASM-only code. Current Rust tooling does not support coverage measurement for wasm32 targets:
-> - `cargo-llvm-cov` only supports native platforms (x86_64)
-> - `wasm-bindgen-test` coverage support is experimental and requires complex setup
-> - `cargo-tarpaulin` does not support wasm32
+> This project achieves comprehensive test coverage for both native and WASM code:
+> - Native code coverage via `cargo-llvm-cov`
+> - WASM code coverage via `wasmcov` with nightly toolchain
 >
-> Coverage reports show only native-testable code. WASM-specific modules (leptos, yew, api/*, webapp, logger) have integration tests but are not included in coverage metrics.
+> Coverage reports include all modules (leptos, yew, api, webapp, logger, pages, router) ensuring quality across the entire codebase.
 >
-> For technical details, see [issue #127](https://github.com/RAprogramm/telegram-webapp-sdk/issues/127).
+> For implementation details, see [issue #130](https://github.com/RAprogramm/telegram-webapp-sdk/issues/130).
 
 <details>
 <summary>Coverage Graphs</summary>

README.md

@@ -56,3 +56,9 @@ path = "demo/dist/**"
 precedence = "aggregate"
 SPDX-FileCopyrightText = "2025 RAprogramm <andrey.rozanov.vl@gmail.com>"
 SPDX-License-Identifier = "CC0-1.0"
+
+[[annotations]]
+path = "wasmcov/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2025 RAprogramm <andrey.rozanov.vl@gmail.com>"
+SPDX-License-Identifier = "CC0-1.0"

REUSE.toml

@@ -14,6 +14,16 @@ coverage:
         threshold: 2%
         informational: false
 
+flags:
+  native:
+    paths:
+      - src/
+    carryforward: true
+  wasm:
+    paths:
+      - src/
+    carryforward: true
+
 comment:
   layout: "header,diff,flags,components,files,footer"
   behavior: default
@@ -24,15 +34,6 @@ ignore:
   - "tests/**/*"
   - "target/**/*"
   - ".github/**/*"
-  - "src/leptos.rs"
-  - "src/leptos/**/*"
-  - "src/yew.rs"
-  - "src/yew/**/*"
-  - "src/api/**/*"
-  - "src/webapp.rs"
-  - "src/logger.rs"
-  - "src/pages.rs"
-  - "src/router.rs"
 
 github_checks:
   annotations: true

codecov.yml

@@ -31,3 +31,22 @@ 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());
+    }
+}