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// Copyright Yahoo. 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.process;
import com.yahoo.vespa.hosted.node.admin.component.TestTaskContext;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Optional;
import java.util.function.Predicate;
import static org.junit.jupiter.api.Assertions.*;
public class CommandLineTest {
private final TestTerminal terminal = new TestTerminal();
private final TestTaskContext context = new TestTaskContext();
private final CommandLine commandLine = terminal.newCommandLine(context);
@AfterEach
public void tearDown() {
terminal.verifyAllCommandsExecuted();
}
@Test
void testStrings() {
terminal.expectCommand(
"/bin/bash \"with space\" \"speci&l\" \"\" \"double\\\"quote\" 2>&1",
0,
"");
commandLine.add("/bin/bash", "with space", "speci&l", "", "double\"quote").execute();
assertEquals("bash", commandLine.programName());
}
@Test
void testBasicExecute() {
terminal.expectCommand("foo bar 2>&1", 0, "line1\nline2\n\n");
CommandResult result = commandLine.add("foo", "bar").execute();
assertEquals(0, result.getExitCode());
assertEquals("line1\nline2", result.getOutput());
assertEquals("line1\nline2\n\n", result.getUntrimmedOutput());
assertEquals(List.of("line1", "line2"), result.getOutputLines());
assertEquals(1, context.getSystemModificationLog().size());
assertEquals("Executing command: foo bar 2>&1", context.getSystemModificationLog().get(0));
List<CommandLine> commandLines = terminal.getTestProcessFactory().getMutableCommandLines();
assertEquals(1, commandLines.size());
assertEquals(commandLine, commandLines.get(0));
int lines = result.map(r -> r.getOutputLines().size());
assertEquals(2, lines);
}
@Test
void verifyDefaults() {
assertEquals(CommandLine.DEFAULT_TIMEOUT, commandLine.getTimeout());
assertEquals(CommandLine.DEFAULT_MAX_OUTPUT_BYTES, commandLine.getMaxOutputBytes());
assertEquals(CommandLine.DEFAULT_SIGTERM_GRACE_PERIOD, commandLine.getSigTermGracePeriod());
assertEquals(CommandLine.DEFAULT_SIGKILL_GRACE_PERIOD, commandLine.getSigKillGracePeriod());
assertEquals(0, commandLine.getArguments().size());
assertEquals(Optional.empty(), commandLine.getOutputFile());
assertEquals(StandardCharsets.UTF_8, commandLine.getOutputEncoding());
assertTrue(commandLine.getRedirectStderrToStdoutInsteadOfDiscard());
Predicate<Integer> defaultExitCodePredicate = commandLine.getSuccessfulExitCodePredicate();
assertTrue(defaultExitCodePredicate.test(0));
assertFalse(defaultExitCodePredicate.test(1));
}
@Test
void executeSilently() {
terminal.ignoreCommand("");
commandLine.add("foo", "bar").executeSilently();
assertEquals(0, context.getSystemModificationLog().size());
commandLine.recordSilentExecutionAsSystemModification();
assertEquals(1, context.getSystemModificationLog().size());
assertEquals("Executed command: foo bar 2>&1", context.getSystemModificationLog().get(0));
}
@Test
void processFactorySpawnFails() {
assertThrows(NegativeArraySizeException.class, () -> {
terminal.interceptCommand(
commandLine.toString(),
command -> {
throw new NegativeArraySizeException();
});
commandLine.add("foo").execute();
});
}
@Test
void waitingForTerminationExceptionStillClosesChild() {
TestChildProcess2 child = new TestChildProcess2(0, "");
child.throwInWaitForTermination(new NegativeArraySizeException());
terminal.interceptCommand(commandLine.toString(), command -> child);
assertFalse(child.closeCalled());
try {
commandLine.add("foo").execute();
fail();
} catch (NegativeArraySizeException e) {
// OK
}
assertTrue(child.closeCalled());
}
@Test
void programFails() {
terminal.expectCommand("foo 2>&1", 1, "");
try {
commandLine.add("foo").execute();
fail();
} catch (ChildProcessFailureException e) {
assertEquals(
"Command 'foo 2>&1' terminated with exit code 1: stdout/stderr: ''",
e.getMessage());
}
}
@Test
void mapException() {
terminal.ignoreCommand("output");
CommandResult result = terminal.newCommandLine(context).add("program").execute();
IllegalArgumentException exception = new IllegalArgumentException("foo");
try {
result.mapOutput(output -> {
throw exception;
});
fail();
} catch (UnexpectedOutputException e) {
assertEquals("Command 'program 2>&1' output was not of the expected format: " +
"Failed to map output: stdout/stderr: 'output'", e.getMessage());
assertEquals(e.getCause(), exception);
}
}
@Test
void testMapEachLine() {
assertEquals(
1 + 2 + 3,
terminal.ignoreCommand("1\n2\n3\n")
.newCommandLine(context)
.add("foo")
.execute()
.mapEachLine(Integer::valueOf)
.stream()
.mapToInt(i -> i)
.sum());
}
@Test
void addTokensWithMultipleWhiteSpaces() {
terminal.expectCommand("iptables -L 2>&1");
commandLine.addTokens("iptables -L").execute();
terminal.verifyAllCommandsExecuted();
}
@Test
void addTokensWithSpecialCharacters() {
terminal.expectCommand("find . ! -name hei 2>&1");
commandLine.addTokens("find . ! -name hei").execute();
terminal.verifyAllCommandsExecuted();
}
@Test
void testEnvironment() {
terminal.expectCommand("env k1=v1 -u k2 \"key 3=value 3\" programname 2>&1");
commandLine.add("programname")
.setEnvironmentVariable("key 3", "value 3")
.removeEnvironmentVariable("k2")
.setEnvironmentVariable("k1", "v1")
.execute();
terminal.verifyAllCommandsExecuted();
}
@Test
public void testToString() {
commandLine.add("bash", "-c", "echo", "$MY_SECRET");
assertEquals("bash -c echo \"$MY_SECRET\" 2>&1", commandLine.toString());
commandLine.censorArgument();
assertEquals("bash -c echo <censored> 2>&1", commandLine.toString());
terminal.expectCommand("bash -c echo \"$MY_SECRET\" 2>&1");
commandLine.execute();
terminal.verifyAllCommandsExecuted();
}
}
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