1 package dev.aherscu.qa.testing.utils.assertions;
2
3 import org.hamcrest.Description;
4 import org.hamcrest.Matcher;
5 import org.hamcrest.TypeSafeMatcher;
6
7 import com.jayway.jsonpath.JsonPath;
8 import com.jayway.jsonpath.JsonPathException;
9 import com.jayway.jsonpath.PathNotFoundException;
10 import com.jayway.jsonpath.ReadContext;
11
12 public class WithJsonPath<T> extends TypeSafeMatcher<ReadContext> {
13 private final JsonPath jsonPath;
14 private final Matcher<T> resultMatcher;
15
16 public WithJsonPath(JsonPath jsonPath, Matcher<T> resultMatcher) {
17 this.jsonPath = jsonPath;
18 this.resultMatcher = resultMatcher;
19 }
20
21 @Override
22 protected boolean matchesSafely(ReadContext context) {
23 try {
24 T value = context.read(jsonPath);
25 return resultMatcher.matches(value);
26 } catch (JsonPathException e) {
27 return false;
28 }
29 }
30
31 public void describeTo(Description description) {
32 description
33 .appendText("with json path ")
34 .appendValue(jsonPath.getPath())
35 .appendText(" evaluated to ")
36 .appendDescriptionOf(resultMatcher);
37 }
38
39 @Override
40 protected void describeMismatchSafely(ReadContext context,
41 Description mismatchDescription) {
42 try {
43 T value = jsonPath.read(context.jsonString());
44 mismatchDescription
45 .appendText("json path ")
46 .appendValue(jsonPath.getPath())
47 .appendText(" was evaluated to ")
48 .appendValue(value);
49 } catch (PathNotFoundException e) {
50 mismatchDescription
51 .appendText("json path ")
52 .appendValue(jsonPath.getPath())
53 .appendText(" was not found in ")
54 .appendValue(context.json());
55 } catch (JsonPathException e) {
56 mismatchDescription
57 .appendText("was ")
58 .appendValue(context.json());
59 }
60 }
61
62 }