package com.jayway.jsonpath;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonSyntaxException;
import com.jayway.jsonpath.spi.mapper.MappingException;
import org.junit.Test;
import java.io.IOException;
import java.util.List;
import static com.jayway.jsonpath.JsonPath.using;
import static org.assertj.core.api.Assertions.assertThat;
public class GsonJsonProviderTest extends BaseTest {
private static final String JSON =
"[" +
"{\n" +
" \"foo\" : \"foo0\",\n" +
" \"bar\" : 0,\n" +
" \"baz\" : true,\n" +
" \"gen\" : {\"eric\" : \"yepp\"}" +
"}," +
"{\n" +
" \"foo\" : \"foo1\",\n" +
" \"bar\" : 1,\n" +
" \"baz\" : true,\n" +
" \"gen\" : {\"eric\" : \"yepp\"}" +
"}," +
"{\n" +
" \"foo\" : \"foo2\",\n" +
" \"bar\" : 2,\n" +
" \"baz\" : true,\n" +
" \"gen\" : {\"eric\" : \"yepp\"}" +
"}" +
"]";
@Test
public void json_can_be_parsed() {
JsonObject node = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$");
assertThat(node.get("string-property").getAsString()).isEqualTo("string-value");
}
@Test
public void strings_are_unwrapped() {
JsonElement node = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$.string-property");
String unwrapped = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$.string-property", String.class);
assertThat(unwrapped).isEqualTo("string-value");
assertThat(unwrapped).isEqualTo(node.getAsString());
}
@Test
public void ints_are_unwrapped() {
JsonElement node = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$.int-max-property");
int unwrapped = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$.int-max-property", int.class);
assertThat(unwrapped).isEqualTo(Integer.MAX_VALUE);
assertThat(unwrapped).isEqualTo(node.getAsInt());
}
@Test
public void longs_are_unwrapped() {
JsonElement node = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$.long-max-property");
long val = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$.long-max-property", Long.class);
assertThat(val).isEqualTo(Long.MAX_VALUE);
assertThat(val).isEqualTo(node.getAsLong());
}
@Test
public void int_to_long_mapping() {
assertThat(using(GSON_CONFIGURATION).parse("{\"val\": 1}").read("val", Long.class)).isEqualTo(1L);
}
@Test
public void an_Integer_can_be_converted_to_a_Double() {
assertThat(using(GSON_CONFIGURATION).parse("{\"val\": 1}").read("val", Double.class)).isEqualTo(1D);
}
@Test
public void list_of_numbers() {
JsonArray objs = using(GSON_CONFIGURATION).parse(JSON_DOCUMENT).read("$.store.book[*].display-price");
assertThat(objs.iterator()).extracting("asDouble").containsExactly(8.95D, 12.99D, 8.99D, 22.99D);
}
@Test
public void an_object_can_be_mapped_to_pojo() {
String json = "{\n" +
" \"foo\" : \"foo\",\n" +
" \"bar\" : 10,\n" +
" \"baz\" : true\n" +
"}";
TestClazz testClazz = JsonPath.using(GSON_CONFIGURATION).parse(json).read("$", TestClazz.class);
assertThat(testClazz.foo).isEqualTo("foo");
assertThat(testClazz.bar).isEqualTo(10L);
assertThat(testClazz.baz).isEqualTo(true);
}
@Test
public void test_type_ref() throws IOException {
TypeRef<List<FooBarBaz<Gen>>> typeRef = new TypeRef<List<FooBarBaz<Gen>>>() {};
List<FooBarBaz<Gen>> list = JsonPath.using(GSON_CONFIGURATION).parse(JSON).read("$", typeRef);
assertThat(list.get(0).gen.eric).isEqualTo("yepp");
}
@Test(expected = MappingException.class)
public void test_type_ref_fail() throws IOException {
TypeRef<List<FooBarBaz<Integer>>> typeRef = new TypeRef<List<FooBarBaz<Integer>>>() {};
using(GSON_CONFIGURATION).parse(JSON).read("$", typeRef);
}
public static class FooBarBaz<T> {
public T gen;
public String foo;
public Long bar;
public boolean baz;
}
public static class Gen {
public String eric;
}
public static class TestClazz {
public String foo;
public Long bar;
public boolean baz;
}
}