public void add(String name, String value) {
        add(new EnvironmentVariable(name, value, false));
    }
@Test
    void add_shouldAddEnvironmentVariable() {
        final EnvironmentVariables environmentVariables = new EnvironmentVariables();
        assertThat(environmentVariables).hasSize(0);

        environmentVariables.add("foo", "bar");

        assertThat(environmentVariables).hasSize(1);
        assertThat(environmentVariables).containsExactly(new EnvironmentVariable("foo", "bar"));
    }