[GR-48571] TCK language provider has a runtime dependency on the tested language.

PullRequest: truffleruby/4026

Author: tzezula

mx.truffleruby/suite.py

@@ -357,7 +357,6 @@
         },
 
         "org.truffleruby.tck": {
-            "testProject": True,
             "dir": "src/tck",
             "sourceDirs": ["java", "ruby"],
             "dependencies": ["truffle:TRUFFLE_TCK"],
@@ -830,11 +829,19 @@
         },
 
         "TRUFFLERUBY-TCK": {
-            "testDistribution": True,
             "dependencies": ["org.truffleruby.tck"],
-            "distDependencies": ["truffle:TRUFFLE_TCK"],
+            "distDependencies": [
+                "truffle:TRUFFLE_TCK",
+               # runtime-only dependencies
+                "TRUFFLERUBY",
+            ],
+            "description" : "Truffle TCK provider for Ruby language.",
             "license": ["EPL-2.0"],
-            "maven": False,
+            "maven": {
+                "artifactId": "ruby-truffle-tck",
+                "tag": ["default", "public"],
+            },
+            "noMavenJavadoc": True,
         },
     },
 }

src/tck/java/org/truffleruby/tck/RubyTCKLanguageProvider.java

@@ -32,6 +32,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -286,7 +287,7 @@ private Source getSource(String path) {
                 throw new FileNotFoundException(path);
             }
 
-            final Reader reader = new InputStreamReader(stream);
+            final Reader reader = new InputStreamReader(stream, StandardCharsets.UTF_8);
             return Source.newBuilder(getId(), reader, new File(path).getName()).build();
         } catch (IOException e) {
             throw new Error(e);