JSON serialiezr/deserializer for CustomerDTO - manually

2019-04-18 14:48:58 +02:00
parent 35565e1b43
commit bc87739d6f
2 changed files with 276 additions and 8 deletions
--- a/src/test/java/org/hostsharing/hsadminng/service/dto/CustomerDTOUnitTest.java
+++ b/src/test/java/org/hostsharing/hsadminng/service/dto/CustomerDTOUnitTest.java
@@ -0,0 +1,113 @@
+package org.hostsharing.hsadminng.service.dto;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.hostsharing.hsadminng.security.SecurityUtils;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.json.JsonTest;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.context.SecurityContext;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.io.IOException;
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertEquals;
+
+@JsonTest
+@RunWith(SpringRunner.class)
+public class CustomerDTOUnitTest {
+
+
+    @Autowired
+    private ObjectMapper objectMapper;
+
+    @Test
+    public void testSerializationAsCustomer() throws JsonProcessingException {
+
+        // given
+        CustomerDTO given = createSomeCustomerDTO();
+        givenLoginUser("customer");
+
+        // when
+        String actual = objectMapper.writeValueAsString(given);
+
+        // then
+        given.setContractualAddress(null);
+        //given.setContractualSalutation(null);
+        assertEquals(createExpectedJSon(given), actual);
+    }
+
+    @Test
+    public void testDeserializeAsCustomer() throws IOException {
+        // given
+        String json = "{\"id\":1234,\"number\":10001,\"prefix\":\"abc\",\"name\":\"Mein Name\",\"contractualAddress\":\"Eine Adresse\",\"contractualSalutation\":\"Hallo\",\"billingAddress\":\"Noch eine Adresse\",\"billingSalutation\":\"Moin\"}";
+        givenLoginUser("customer");
+
+        // when
+        CustomerDTO actual = objectMapper.readValue(json, CustomerDTO.class);
+
+        // then
+        CustomerDTO expected = new CustomerDTO();
+        expected.setId(1234L);
+        expected.setNumber(10001);
+        expected.setPrefix("abc");
+        expected.setName("Mein Name");
+        expected.setContractualAddress(null); // not allowed
+        expected.setContractualSalutation("Hallo");
+        expected.setBillingAddress("Noch eine Adresse");
+        expected.setBillingSalutation("Moin");
+        assertEquals(actual, expected);
+    }
+
+    private String createExpectedJSon(CustomerDTO dto) {
+        String json = // the fields in alphanumeric order:
+            toJSonFieldDefinitionIfPresent("billingAddress", dto.getBillingAddress()) +
+                toJSonFieldDefinitionIfPresent("billingSalutation", dto.getBillingSalutation()) +
+                toJSonFieldDefinitionIfPresent("contractualAddress", dto.getContractualAddress()) +
+                toJSonFieldDefinitionIfPresent("contractualSalutation", dto.getContractualSalutation()) +
+                toJSonFieldDefinitionIfPresent("id", dto.getId()) +
+                toJSonFieldDefinitionIfPresent("name", dto.getName()) +
+                toJSonFieldDefinitionIfPresent("number", dto.getNumber()) +
+                toJSonFieldDefinitionIfPresent("prefix", dto.getPrefix());
+        return "{" + json.substring(0, json.length() - 1) + "}";
+    }
+
+    private String toJSonFieldDefinitionIfPresent(String name, String value) {
+        return value != null ? inQuotes(name) + ":" + inQuotes(value) + "," : "";
+    }
+
+    private String toJSonFieldDefinitionIfPresent(String name, Number value) {
+        return value != null ? inQuotes(name) + ":" + value + "," : "";
+    }
+
+    private String inQuotes(Object value) {
+        return "\"" + value.toString() + "\"";
+    }
+
+    private CustomerDTO createSomeCustomerDTO() {
+        CustomerDTO given = new CustomerDTO();
+        given.setId(1234L);
+        given.setNumber(10001);
+        given.setPrefix("abc");
+        given.setName("Mein Name");
+        given.setContractualAddress("Eine Adresse");
+        given.setContractualSalutation("Hallo");
+        given.setBillingAddress("Noch eine Adresse");
+        given.setBillingSalutation("Moin");
+        givenLoginUser("admin");
+        return given;
+    }
+
+    private void givenLoginUser(String userName) {
+        SecurityContext securityContext = SecurityContextHolder.createEmptyContext();
+        securityContext.setAuthentication(new UsernamePasswordAuthenticationToken(userName, userName));
+        SecurityContextHolder.setContext(securityContext);
+        Optional<String> login = SecurityUtils.getCurrentUserLogin();
+        assertThat(login).describedAs("precondition failed").contains(userName);
+    }
+}