Add a very-limited ‘no-wrapper’ test Gradle build

Will use this for testing Gradle execution with different versions and mechanisms.

.github/workflows/prod.yml

@@ -22,12 +22,18 @@ jobs:
     - name: Test custom wrapper location
       uses: ./
       with:
-        build-root-directory: __tests__/samples/basic
+        build-root-directory: __tests__/samples/no-wrapper
         wrapper-directory: __tests__/samples/basic
-        arguments: test
+        arguments: help
     - name: Test use defined Gradle version
+      uses: ./
+      with:
+        gradle-version: 6.9
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help
+    - name: Test use Gradle version alias
       uses: ./
       with:
         gradle-version: rc
-        build-root-directory: __tests__/samples/basic
-        arguments: test
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help

__tests__/samples/no-wrapper/.gitattributes

@@ -0,0 +1,6 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# These are explicitly windows files and should use crlf
+*.bat           text eol=crlf
+

__tests__/samples/no-wrapper/.gitignore

@@ -0,0 +1,5 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build

__tests__/samples/no-wrapper/settings.gradle

@@ -0,0 +1,3 @@
+rootProject.name = 'no-wrapper'
+
+println "Using Gradle version: ${gradle.gradleVersion}"