Add a just recipe to install Playwright (#1742)

Also updates the README.

.github/workflows/pr.yml

@@ -154,13 +154,14 @@ jobs:
         run: dotnet build -c Release --no-restore
         working-directory: TeachingRecordSystem/tests/${{ matrix.project }}
 
-      - name: Check for Playwright
+      - name: Install Playwright if required
         run: |
-          playwright_script=./bin/Release/net8.0/playwright.ps1
-          if [ -f $playwright_script ]; then
-            pwsh $playwright_script install chromium
+          if [[ "$PROJECT_NAME" =~ .*EndToEndTests ]]; then
+            pwsh ./bin/Release/net8.0/playwright.ps1 install chromium
           fi
         working-directory: TeachingRecordSystem/tests/${{ matrix.project }}
+        env:
+          PROJECT_NAME: ${{ matrix.project }}
 
       - name: Run tests
         uses: ./.github/workflows/actions/test

README.md

@@ -82,6 +82,13 @@ As well as NuGet packages, there are some client-side libraries required. A `jus
 just restore
 ```
 
+### Install Playwright
+
+Playwright is used for end-to-end testing. Install it with a `just` recipe:
+```shell
+just install-playwright
+```
+
 
 ### Database setup
 

justfile

@@ -16,14 +16,18 @@ default:
 # Install local tools
 install-tools:
   @cd {{solution-root}} && dotnet tool restore
-  npm install -g sass
+  @npm install -g sass
 
 # Restore dependencies
 restore:
   @cd {{solution-root}} && dotnet restore --locked-mode
   @cd {{solution-root / "src" / "TeachingRecordSystem.SupportUi" }} && dotnet libman restore --verbosity quiet
   @cd {{solution-root / "src" / "TeachingRecordSystem.AuthorizeAccess" }} && dotnet libman restore --verbosity quiet
 
+# Install Playwright
+install-playwright:
+  @cd {{solution-root / "tests" / "TeachingRecordSystem.AuthorizeAccess.EndToEndTests"}} && pwsh bin/Debug/net8.0/playwright.ps1 install chromium
+
 # Run the trscli
 cli *ARGS:
   @dotnet {{solution-root / "src" / "TeachingRecordSystem.Cli" / "bin" / "Debug" / "net8.0" / "trscli.dll"}} {{ARGS}}