### Question:
Environment { public Integer getPositiveInteger(String name, Integer defaultValue) { Integer value = getInteger(name, defaultValue); if (value == null || value <= 0) { value = Integer.MAX_VALUE; } return value; } Environment();  Environment(EnvironmentVariablesAccessor environmentVariablesAccessor); Map<String, String> getAllVariables(); Long getLong(String name); String getString(String name); Integer getInteger(String name); Boolean getBoolean(String name); Long getLong(String name, Long defaultValue); String getString(String name, String defaultValue); Integer getInteger(String name, Integer defaultValue); Boolean getBoolean(String name, Boolean defaultValue); Integer getPositiveInteger(String name, Integer defaultValue); Integer getNegativeInteger(String name, Integer defaultValue); T getVariable(String name, Function<String, T> mappingFunction); T getVariable(String name, Function<String, T> mappingFunction, T defaultValue); boolean hasVariable(String name);  }### Answer:
@Test void testGetPositiveIntegerWithNull() { assertEquals(Integer.MAX_VALUE, (int) environment.getPositiveInteger("ab", null)); }