setup uv in ZarrPythonTests automatically

Author: brokkoli71

.github/workflows/deploy.yml

@@ -43,7 +43,6 @@ jobs:
         run: |
           uv venv && uv init
           uv add zarr
-          uv add zarrita
 
       - name: Download testdata
         run: |

README.md

@@ -43,12 +43,7 @@ array.write(
 ## Development Start-Guide
 
 ### Run Tests Locally
-To be able to run the tests locally, make sure to have `python3.11` installed. 
-Also, you need to set up a venv for zarrita at the root of the project:
-`python3.11 -m venv venv_zarrita`.
-
-Then install zarrita there with `venv_zarrita/Scripts/pip install zarrita` 
-for Windows and `venv_zarrita/bin/pip install zarrita` for Linux.
+To be able to run the tests locally, make sure to have `python3.11` and `uv` installed. 
 
 Furthermore, you will need the `l4_sample` test data:
 

src/test/java/dev/zarr/zarrjava/ZarrPythonTests.java

@@ -39,12 +39,9 @@ public static void clearTestoutputFolder() throws IOException {
         Files.createDirectory(TESTOUTPUT);
     }
 
-    public void run_python_script(String scriptName, String... args) throws IOException, InterruptedException {
+    public static int runCommand(String... command) throws IOException, InterruptedException {
         ProcessBuilder pb = new ProcessBuilder();
-        pb.command().add("uv");
-        pb.command().add("run");
-        pb.command().add(PYTHON_TEST_PATH.resolve(scriptName).toString());
-        pb.command().addAll(Arrays.asList(args));
+        pb.command().addAll(Arrays.asList(command));
         Process process = pb.start();
 
         BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
@@ -58,7 +55,27 @@ public void run_python_script(String scriptName, String... args) throws IOExcept
             System.err.println(line);
         }
 
-        int exitCode = process.waitFor();
+        return process.waitFor();
+    }
+
+    @BeforeAll
+    public static void setupUV() {
+        try {
+            int exitCode = runCommand("uv", "version");
+            if (exitCode != 0) {
+                //setup uv
+                assert runCommand("uv", "venv") == 0;
+                assert runCommand("uv", "init") == 0;
+                assert runCommand("uv", "add", "zarr") == 0;
+            }
+        } catch (IOException | InterruptedException e) {
+            throw new RuntimeException("uv not installed or not in PATH. See");
+        }
+    }
+
+    public void run_python_script(String scriptName, String... args) throws IOException, InterruptedException {
+        int exitCode = runCommand(Stream.concat(Stream.of("uv", "run", PYTHON_TEST_PATH.resolve(scriptName)
+            .toString()), Arrays.stream(args)).toArray(String[]::new));
         assert exitCode == 0;
     }