public async Task CopyFileToRunningContainer()
{
// Given
const string dayOfWeekFilePath = "/tmp/dayOfWeek";
var dayOfWeek = DateTime.UtcNow.DayOfWeek.ToString();
var testcontainersBuilder = new TestcontainersBuilder <TestcontainersContainer>()
.WithImage("alpine")
.WithEntrypoint(KeepTestcontainersUpAndRunning.Command);
// When
// Then
await using (ITestcontainersContainer testcontainer = testcontainersBuilder.Build())
{
await testcontainer.StartAsync();
await testcontainer.CopyFileAsync(dayOfWeekFilePath, Encoding.Default.GetBytes(dayOfWeek));
Assert.Equal(0, (await testcontainer.ExecAsync(new[] { "/bin/sh", "-c", $"test \"$(cat {dayOfWeekFilePath})\" = \"{dayOfWeek}\"" })).ExitCode);
Assert.Equal(0, (await testcontainer.ExecAsync(new[] { "/bin/sh", "-c", $"stat {dayOfWeekFilePath} | grep 0600" })).ExitCode);
}
}