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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.task.util.file;
import com.yahoo.vespa.hosted.node.admin.component.TaskContext;
import com.yahoo.vespa.test.file.TestFileSystem;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import java.nio.file.FileSystem;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public class EditorTest {
private final FileSystem fileSystem = TestFileSystem.create();
private final UnixPath path = new UnixPath(fileSystem.getPath("/file"));
@Test
void testEdit() {
path.writeUtf8File(joinLines("first", "second", "third"));
LineEditor lineEditor = mock(LineEditor.class);
when(lineEditor.edit(any())).thenReturn(
LineEdit.none(), // don't edit the first line
LineEdit.remove(), // remove the second
LineEdit.replaceWith("replacement")); // replace the third
Editor editor = new Editor(path.toPath(), lineEditor);
TaskContext context = mock(TaskContext.class);
assertTrue(editor.converge(context));
verify(lineEditor, times(3)).edit(any());
// Verify the system modification message
ArgumentCaptor<String> modificationMessage = ArgumentCaptor.forClass(String.class);
verify(context).recordSystemModification(any(), modificationMessage.capture());
assertEquals(
"Patching file /file:\n-second\n-third\n+replacement\n",
modificationMessage.getValue());
// Verify the new contents of the file:
assertEquals(joinLines("first", "replacement"), path.readUtf8File());
}
@Test
void testInsert() {
path.writeUtf8File(joinLines("second", "eight", "fifth", "seventh"));
LineEditor lineEditor = mock(LineEditor.class);
when(lineEditor.edit(any())).thenReturn(
LineEdit.insertBefore("first"), // insert first, and keep the second line
LineEdit.replaceWith("third", "fourth"), // remove eight, and replace with third and fourth instead
LineEdit.none(), // Keep fifth
LineEdit.insert(List.of("sixth"), // insert sixth before seventh
List.of("eight"))); // add eight after seventh
Editor editor = new Editor(path.toPath(), lineEditor);
TaskContext context = mock(TaskContext.class);
assertTrue(editor.converge(context));
// Verify the system modification message
ArgumentCaptor<String> modificationMessage = ArgumentCaptor.forClass(String.class);
verify(context).recordSystemModification(any(), modificationMessage.capture());
assertEquals(
"Patching file /file:\n" +
"+first\n" +
"-eight\n" +
"+third\n" +
"+fourth\n" +
"+sixth\n" +
"+eight\n",
modificationMessage.getValue());
// Verify the new contents of the file:
assertEquals(joinLines("first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eight"),
path.readUtf8File());
}
@Test
void noop() {
path.writeUtf8File("line\n");
LineEditor lineEditor = mock(LineEditor.class);
when(lineEditor.edit(any())).thenReturn(LineEdit.none());
Editor editor = new Editor(path.toPath(), lineEditor);
TaskContext context = mock(TaskContext.class);
assertFalse(editor.converge(context));
verify(lineEditor, times(1)).edit(any());
// Verify the system modification message
verify(context, times(0)).recordSystemModification(any(), any());
// Verify same contents
assertEquals("line\n", path.readUtf8File());
}
@Test
void testMissingFile() {
LineEditor lineEditor = mock(LineEditor.class);
when(lineEditor.onComplete()).thenReturn(List.of("line"));
TaskContext context = mock(TaskContext.class);
var editor = new Editor(path.toPath(), lineEditor);
editor.converge(context);
assertEquals("line\n", path.readUtf8File());
}
private static String joinLines(String... lines) {
return String.join("\n", lines) + "\n";
}
}
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