trouble with coercision in test

Start with the TestJinjava.testCoerc reproduction and the Jinjava.render entry point named in the stack trace. Run the test with numeric and string macro arguments, then trace the conditional comparison and coercion behavior. Done means the reproduced case renders both Fedora entries with the expected output without the coercion exception.

Hi,

Here is a unit test class that reflect my problem:

import static org.junit.Assert.assertEquals;

import java.util.Collections;

import org.junit.Test;

import com.hubspot.jinjava.Jinjava;

public class TestJinjava {
	@Test
	public void testCoerc() {
		String output = new Jinjava().render("{% macro bug(version) %}"
				+ "{% set fversion = 'rawhide' if version == 'rawhide' else 'f' + version|string %}"
				+ "- name: fedora_{{version}}\n"
				+ "  url: 'https://src.fedoraproject.org/rpms/{srcname}/tree/{{fversion}}'\n"
				+ "{% endmacro %}{{ bug('39') }}{{ bug('rawhide') }}", Collections.emptyMap());
		assertEquals("- name: fedora_39\n  url: 'https://src.fedoraproject.org/rpms/{srcname}/tree/f39'\n"
				+ "- name: fedora_rawhide\n  url: 'https://src.fedoraproject.org/rpms/{srcname}/tree/rawhide'\n",
				output);
	}
}

If bug('19') is replaced by bug(19), test is broken:

com.hubspot.jinjava.interpret.FatalTemplateErrorsException: Cannot coerce 'rawhide' of class java.lang.String to class java.lang.Long (incompatible value)
	at com.hubspot.jinjava.Jinjava.render(Jinjava.java:193)
	at repology.TestJinjava.testCoerc(TestJinjava.java:15)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:93)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:40)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:529)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:756)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:452)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)

To me this is strange and it is also not possible to replace the condition by something like:
{% set fversion = 'rawhide' if version|string == 'rawhide' else 'f' + version|string %}
isn't it?

This test case was extracted from:
https://github.com/repology/repology-updater/blob/master/repos.d/rpm/fedora.yaml
that use Python Jinja2.

Regards,
Patrice