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/**
* Copyright 2012-2020 The Feign Authors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package feign.template;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.fail;
import feign.Util;
import java.net.URI;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.junit.Test;
public class UriTemplateTest {
@Test
public void emptyRelativeTemplate() {
String template = "/";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.expand(Collections.emptyMap())).isEqualToIgnoringCase("/");
}
@Test(expected = IllegalArgumentException.class)
public void nullTemplate() {
UriTemplate.create(null, Util.UTF_8);
}
@Test
public void emptyTemplate() {
UriTemplate.create("", Util.UTF_8);
}
@Test
public void simpleTemplate() {
String template = "https://www.example.com/foo/{bar}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
/* verify that the template has 1 variables names foo */
List<String> uriTemplateVariables = uriTemplate.getVariables();
assertThat(uriTemplateVariables).contains("bar").hasSize(1);
/* expand the template */
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("bar", "bar");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate).isEqualToIgnoringCase("https://www.example.com/foo/bar");
assertThat(URI.create(expandedTemplate)).isNotNull();
}
@Test
public void simpleTemplateMultipleExpressions() {
String template = "https://www.example.com/{foo}/{bar}/details";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
/* verify that the template has 2 variables names foo and bar */
List<String> uriTemplateVariables = uriTemplate.getVariables();
assertThat(uriTemplateVariables).contains("foo", "bar").hasSize(2);
/* expand the template */
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("foo", "first");
variables.put("bar", "second");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate)
.isEqualToIgnoringCase("https://www.example.com/first/second/details");
assertThat(URI.create(expandedTemplate)).isNotNull();
}
@Test
public void simpleTemplateMultipleSequentialExpressions() {
String template = "https://www.example.com/{foo}{bar}/{baz}/details";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
/* verify that the template has 2 variables names foo and bar */
List<String> uriTemplateVariables = uriTemplate.getVariables();
assertThat(uriTemplateVariables).contains("foo", "bar", "baz").hasSize(3);
/* expand the template */
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("foo", "first");
variables.put("bar", "second");
variables.put("baz", "third");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate)
.isEqualToIgnoringCase("https://www.example.com/firstsecond/third/details");
assertThat(URI.create(expandedTemplate)).isNotNull();
}
@Test
public void simpleTemplateUnresolvedVariablesAreRemoved() {
String template = "https://www.example.com/{foo}?name={name}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.getVariables()).contains("foo", "name").hasSize(2);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("name", "Albert");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate).isEqualToIgnoringCase("https://www.example.com/?name=Albert");
assertThat(URI.create(expandedTemplate)).isNotNull();
}
@Test
public void missingVariablesOnPathAreRemoved() {
String template = "https://www.example.com/{foo}/items?name={name}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.getVariables()).contains("foo", "name").hasSize(2);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("name", "Albert");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate)
.isEqualToIgnoringCase("https://www.example.com//items?name=Albert");
assertThat(URI.create(expandedTemplate)).isNotNull();
}
@Test
public void simpleTemplateWithRegularExpressions() {
String template = "https://www.example.com/{foo:[0-9]{4}}/{bar}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.getVariables()).contains("foo", "bar").hasSize(2);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("foo", 1234);
variables.put("bar", "stuff");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate).isEqualToIgnoringCase("https://www.example.com/1234/stuff");
assertThat(URI.create(expandedTemplate)).isNotNull();
}
@Test(expected = IllegalArgumentException.class)
public void simpleTemplateWithRegularExpressionsValidation() {
String template = "https://www.example.com/{foo:[0-9]{4}}/{bar}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.getVariables()).contains("foo", "bar").hasSize(2);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("foo", "abcd");
variables.put("bar", "stuff");
/* the foo variable must be a number and no more than four, this should fail */
uriTemplate.expand(variables);
fail("Should not be able to expand, pattern does not match");
}
@Test
public void nestedExpressionsAreLiterals() {
/* the template of {foo{bar}}, will be treated as literals as nested templates are ignored */
String template = "https://www.example.com/{foo{bar}}/{baz}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.getVariables()).contains("baz").hasSize(1);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("baz", "stuff");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate)
.isEqualToIgnoringCase("https://www.example.com/%7Bfoo%7Bbar%7D%7D/stuff");
assertThat(URI.create(expandedTemplate))
.isNotNull(); // this should fail, the result is not a valid uri
}
@Test
public void literalTemplate() {
String template = "https://www.example.com/do/stuff";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
String expandedTemplate = uriTemplate.expand(Collections.emptyMap());
assertThat(expandedTemplate).isEqualToIgnoringCase(template);
assertThat(URI.create(expandedTemplate)).isNotNull();
}
@Test(expected = IllegalArgumentException.class)
public void rejectEmptyExpressions() {
String template = "https://www.example.com/{}/things";
UriTemplate.create(template, Util.UTF_8);
fail("Should not accept empty expressions");
}
@Test
public void testToString() {
String template = "https://www.example.com/foo/{bar}/{baz:[0-9]}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.toString()).isEqualToIgnoringCase(template);
}
@Test
public void encodeVariables() {
String template = "https://www.example.com/{first}/{last}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("first", "John Jacob");
variables.put("last", "Jingleheimer Schmidt");
String expandedTemplate = uriTemplate.expand(variables);
assertThat(expandedTemplate)
.isEqualToIgnoringCase("https://www.example.com/John%20Jacob/Jingleheimer%20Schmidt");
}
@Test
public void encodeLiterals() {
String template = "https://www.example.com/A Team";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
String expandedTemplate = uriTemplate.expand(Collections.emptyMap());
assertThat(expandedTemplate)
.isEqualToIgnoringCase("https://www.example.com/A%20Team");
}
@Test
public void ensurePlusIsSupportedOnPath() {
String template = "https://www.example.com/sam+adams/beer/{type}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
String expanded = uriTemplate.expand(Collections.emptyMap());
assertThat(expanded).isEqualToIgnoringCase("https://www.example.com/sam+adams/beer/");
}
@Test
public void ensurePlusInEncodedAs2BOnQuery() {
String template = "https://www.example.com/beer?type={type}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
Map<String, Object> parameters = Collections.singletonMap("type", "sam+adams");
String expanded = uriTemplate.expand(parameters);
assertThat(expanded).isEqualToIgnoringCase("https://www.example.com/beer?type=sam%2Badams");
}
@Test
public void incompleteTemplateIsALiteral() {
String template = "https://www.example.com/testing/foo}}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
assertThat(uriTemplate.expand(Collections.emptyMap()))
.isEqualToIgnoringCase("https://www.example.com/testing/foo%7D%7D");
}
@Test(expected = IllegalArgumentException.class)
public void substituteNullMap() {
UriTemplate.create("stuff", Util.UTF_8).expand(null);
}
@Test
public void skipAlreadyEncodedLiteral() {
String template = "https://www.example.com/A%20Team";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
String expandedTemplate = uriTemplate.expand(Collections.emptyMap());
assertThat(expandedTemplate)
.isEqualToIgnoringCase("https://www.example.com/A%20Team");
}
@Test
public void skipAlreadyEncodedVariable() {
String template = "https://www.example.com/testing/{foo}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
String encodedVariable = UriUtils.encode("Johnny Appleseed", Util.UTF_8);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("foo", encodedVariable);
assertThat(uriTemplate.expand(variables))
.isEqualToIgnoringCase("https://www.example.com/testing/" + encodedVariable);
}
@Test
public void skipSlashes() {
String template = "https://www.example.com/{path}";
UriTemplate uriTemplate = UriTemplate.create(template, false, Util.UTF_8);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("path", "me/you/first");
String encoded = uriTemplate.expand(variables);
assertThat(encoded).isEqualToIgnoringCase("https://www.example.com/me/you/first");
}
@Test
public void encodeSlashes() {
String template = "https://www.example.com/{path}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
Map<String, Object> variables = new LinkedHashMap<>();
variables.put("path", "me/you/first");
String encoded = uriTemplate.expand(variables);
assertThat(encoded).isEqualToIgnoringCase("https://www.example.com/me%2Fyou%2Ffirst");
}
@Test
public void testLiteralTemplateWithQueryString() {
String template = "https://api.example.com?wsdl";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
String expanded = uriTemplate.expand(Collections.emptyMap());
assertThat(expanded).isEqualToIgnoringCase("https://api.example.com?wsdl");
}
@Test
public void encodeReserved() {
String template = "/get?url={url}";
UriTemplate uriTemplate = UriTemplate.create(template, Util.UTF_8);
String expanded = uriTemplate.expand(Collections.singletonMap("url", "https://www.google.com"));
assertThat(expanded).isEqualToIgnoringCase("/get?url=https%3A%2F%2Fwww.google.com");
}
}