feat: File ownership methods added (#56)

src/main/java/io/homecentr/testcontainers/containers/GenericContainerEx.java

@@ -8,6 +8,7 @@
 import org.testcontainers.containers.output.OutputFrame;
 import org.testcontainers.images.builder.ImageFromDockerfile;
 
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.net.HttpURLConnection;
 import java.net.URL;
@@ -66,6 +67,30 @@ public Integer getProcessGid(String processName) throws IOException, Interrupted
  return Integer.parseInt(output);
  }
 
+ public Integer getFileOwnerUid(String filePath) throws IOException, InterruptedException {
+ ExecResult result = executeShellCommand("stat -c '%u' " + filePath);
+
+ if(result.getExitCode() != 0) {
+ throw new FileNotFoundException(filePath);
+ }
+
+ String output = result.getStdout().trim();
+
+ return Integer.parseInt(output);
+ }
+
+ public Integer getFileOwningGid(String filePath) throws IOException, InterruptedException {
+ ExecResult result = executeShellCommand("stat -c '%g' " + filePath);
+
+ if(result.getExitCode() != 0) {
+ throw new FileNotFoundException(filePath);
+ }
+
+ String output = result.getStdout().trim();
+
+ return Integer.parseInt(output);
+ }
+
  public ExecResult executeShellCommand(String command) throws IOException, InterruptedException {
  return this.execInContainer(
  getShellExecutable(),

src/test/java/io/homecentr/testcontainers/containers/GenericContainerEx_getFileOwnerUidShould.java

@@ -0,0 +1,49 @@
+package io.homecentr.testcontainers.containers;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.testcontainers.containers.output.Slf4jLogConsumer;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+
+public class GenericContainerEx_getFileOwnerUidShould {
+ private static final Logger logger = LoggerFactory.getLogger(GenericContainerEx_getProcessGidShould.class);
+
+ private GenericContainerEx _container;
+
+ @Before
+ public void before() throws IOException, InterruptedException {
+ _container = new GenericContainerEx<>("centos").withCommand("bash", "-c", "sleep 100s");
+ _container.start();
+ _container.followOutput(new Slf4jLogConsumer(logger));
+
+ _container.executeShellCommand("useradd -u 1100 test");
+ }
+
+ @After
+ public void after() {
+ _container.close();
+ }
+
+ @Test
+ public void returnFileOwnerUid() throws IOException, InterruptedException {
+ _container.executeShellCommand("echo Hello > /tmp/out.txt");
+ _container.executeShellCommand("chown 1000 /tmp/out.txt");
+
+ Integer ownerUid = _container.getFileOwnerUid("/tmp/out.txt");
+
+ assertEquals(1000, (long)ownerUid);
+ }
+
+ @Test
+ public void throwFileNotFoundException_GivenNonExistingPath() {
+ assertThrows(FileNotFoundException.class, () -> _container.getFileOwnerUid("/tmp/out.txt"));
+ }
+}

src/test/java/io/homecentr/testcontainers/containers/GenericContainerEx_getFileOwningGidShould.java

@@ -0,0 +1,49 @@
+package io.homecentr.testcontainers.containers;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.testcontainers.containers.output.Slf4jLogConsumer;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+
+public class GenericContainerEx_getFileOwningGidShould {
+ private static final Logger logger = LoggerFactory.getLogger(GenericContainerEx_getProcessGidShould.class);
+
+ private GenericContainerEx _container;
+
+ @Before
+ public void before() throws IOException, InterruptedException {
+ _container = new GenericContainerEx<>("centos").withCommand("bash", "-c", "sleep 100s");
+ _container.start();
+ _container.followOutput(new Slf4jLogConsumer(logger));
+
+ _container.executeShellCommand("groupadd -g 1100 test");
+ }
+
+ @After
+ public void after() {
+ _container.close();
+ }
+
+ @Test
+ public void returnFileOwnerUid() throws IOException, InterruptedException {
+ _container.executeShellCommand("echo Hello > /tmp/out.txt");
+ _container.executeShellCommand("chgrp 1000 /tmp/out.txt");
+
+ Integer ownerUid = _container.getFileOwningGid("/tmp/out.txt");
+
+ assertEquals(1000, (long)ownerUid);
+ }
+
+ @Test
+ public void throwFileNotFoundException_GivenNonExistingPath() {
+ assertThrows(FileNotFoundException.class, () -> _container.getFileOwningGid("/tmp/out.txt"));
+ }
+}