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ReactiveFinderExpressionParserTests.java
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ReactiveFinderExpressionParserTests.java
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package run.halo.app.theme;
import static org.assertj.core.api.Assertions.assertThat;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import java.util.Map;
import java.util.Set;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.context.ApplicationContext;
import org.thymeleaf.IEngineConfiguration;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import org.thymeleaf.spring6.dialect.SpringStandardDialect;
import org.thymeleaf.spring6.expression.ThymeleafEvaluationContext;
import org.thymeleaf.standard.expression.IStandardVariableExpressionEvaluator;
import org.thymeleaf.templateresolver.StringTemplateResolver;
import org.thymeleaf.templateresource.ITemplateResource;
import org.thymeleaf.templateresource.StringTemplateResource;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import run.halo.app.infra.utils.JsonUtils;
import run.halo.app.theme.dialect.HaloProcessorDialect;
/**
* Tests expression parser for reactive return value.
*
* @author guqing
* @see ReactivePropertyAccessor
* @see ReactiveSpelVariableExpressionEvaluator
* @since 2.0.0
*/
@ExtendWith(MockitoExtension.class)
public class ReactiveFinderExpressionParserTests {
@Mock
private ApplicationContext applicationContext;
private TemplateEngine templateEngine;
@BeforeEach
void setUp() {
HaloProcessorDialect haloProcessorDialect = new HaloProcessorDialect();
templateEngine = new TemplateEngine();
templateEngine.setDialects(Set.of(haloProcessorDialect, new SpringStandardDialect() {
@Override
public IStandardVariableExpressionEvaluator getVariableExpressionEvaluator() {
return new ReactiveSpelVariableExpressionEvaluator();
}
}));
templateEngine.addTemplateResolver(new TestTemplateResolver());
}
@Test
void javascriptInlineParser() {
Context context = getContext();
context.setVariable("target", new TestReactiveFinder());
context.setVariable("genericMap", Map.of("key", "value"));
String result = templateEngine.process("javascriptInline", context);
assertThat(result).isEqualTo("""
<p>value</p>
<p>ruibaby</p>
<p>guqing</p>
<p>bar</p>
<script>
var genericValue = "value";
var name = "guqing";
var names = ["guqing","johnniang","ruibaby"];
var users = [{"name":"guqing"},{"name":"ruibaby"},{"name":"johnniang"}];
var userListItem = "guqing";
var objectJsonNodeFlux = [{"name":"guqing"}];
var objectJsonNodeFluxChain = "guqing";
var mapMono = "bar";
var arrayNodeMono = "bar";
</script>
""");
}
static class TestReactiveFinder {
public Mono<String> getName() {
return Mono.just("guqing");
}
public Flux<String> names() {
return Flux.just("guqing", "johnniang", "ruibaby");
}
public Flux<TestUser> users() {
return Flux.just(
new TestUser("guqing"), new TestUser("ruibaby"), new TestUser("johnniang")
);
}
public Flux<JsonNode> objectJsonNodeFlux() {
ObjectNode objectNode = JsonUtils.DEFAULT_JSON_MAPPER.createObjectNode();
objectNode.put("name", "guqing");
return Flux.just(objectNode);
}
public Mono<Map<String, Object>> mapMono() {
return Mono.just(Map.of("foo", "bar"));
}
public Mono<JsonNode> arrayNodeMono() {
ArrayNode arrayNode = JsonUtils.DEFAULT_JSON_MAPPER.createArrayNode();
arrayNode.add(arrayNode.objectNode().put("foo", "bar"));
return Mono.just(arrayNode);
}
}
record TestUser(String name) {
}
private Context getContext() {
Context context = new Context();
context.setVariable(
ThymeleafEvaluationContext.THYMELEAF_EVALUATION_CONTEXT_CONTEXT_VARIABLE_NAME,
new ThymeleafEvaluationContext(applicationContext, null));
return context;
}
static class TestTemplateResolver extends StringTemplateResolver {
@Override
protected ITemplateResource computeTemplateResource(IEngineConfiguration configuration,
String ownerTemplate, String template,
Map<String, Object> templateResolutionAttributes) {
return new StringTemplateResource("""
<p th:text="${genericMap.key}"></p>
<p th:text="${target.users[1].name}"></p>
<p th:text="${target.objectJsonNodeFlux[0].name}"></p>
<p th:text="${target.arrayNodeMono.get(0).foo}"></p>
<script th:inline="javascript">
var genericValue = /*[[${genericMap.key}]]*/;
var name = /*[[${target.getName()}]]*/;
var names = /*[[${target.names()}]]*/;
var users = /*[[${target.users()}]]*/;
var userListItem = /*[[${target.users[0].name}]]*/;
var objectJsonNodeFlux = /*[[${target.objectJsonNodeFlux()}]]*/;
var objectJsonNodeFluxChain = /*[[${target.objectJsonNodeFlux[0].name}]]*/;
var mapMono = /*[[${target.mapMono.foo}]]*/;
var arrayNodeMono = /*[[${target.arrayNodeMono.get(0).foo}]]*/;
</script>
""");
}
}
}