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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.task.util.template;
import org.junit.jupiter.api.Test;
import java.nio.file.Path;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
/**
* @author hakonhall
*/
public class TemplateTest {
@Test
void verifyNewlineRemoval() {
Template template = Template.from("a%{list a}\n" +
"b%{end}\n" +
"c%{list c-}\n" +
"d%{end-}\n" +
"e\n",
new TemplateDescriptor().setRemoveNewline(false));
template.add("a");
template.add("c");
assertEquals("a\n" +
"b\n" +
"cde\n",
template.render());
}
@Test
void verifyIfSection() {
Template template = Template.from("Hello%{if cond} world%{end}!");
assertEquals("Hello world!", template.snapshot().set("cond", true).render());
assertEquals("Hello!", template.snapshot().set("cond", false).render());
}
@Test
void verifyComplexIfSection() {
Template template = Template.from("%{if cond}\n" +
"var: %{=varname}\n" +
"if: %{if !inner}inner is false%{end-}\n" +
"list: %{list formname}element%{end-}\n" +
"%{end}\n");
assertEquals("", template.snapshot().set("cond", false).render());
assertEquals("var: varvalue\n" +
"if: \n" +
"list: \n",
template.snapshot()
.set("cond", true)
.set("varname", "varvalue")
.set("inner", true)
.render());
Template template2 = template.snapshot()
.set("cond", true)
.set("varname", "varvalue")
.set("inner", false);
template2.add("formname");
assertEquals("var: varvalue\n" +
"if: inner is false\n" +
"list: element\n", template2.render());
}
@Test
void verifyElse() {
var template = Template.from("%{if cond}\n" +
"if body\n" +
"%{else}\n" +
"else body\n" +
"%{end}\n");
assertEquals("if body\n", template.snapshot().set("cond", true).render());
assertEquals("else body\n", template.snapshot().set("cond", false).render());
}
@Test
void verifySnapshotPreservesList() {
var template = Template.from("%{list foo}hello %{=area}%{end}");
template.add("foo")
.set("area", "world");
assertEquals("hello world", template.render());
assertEquals("hello world", template.snapshot().render());
Template snapshot = template.snapshot();
snapshot.add("foo")
.set("area", "Norway");
assertEquals("hello worldhello Norway", snapshot.render());
}
@Test
void verifyVariableSection() {
Template template = getTemplate("template1.tmp");
template.set("varname", "varvalue");
assertEquals("variable section 'varvalue'\n" +
"end of text\n", template.render());
}
@Test
void verifySimpleListSection() {
Template template = getTemplate("template1.tmp");
template.set("varname", "varvalue")
.add("listname")
.set("varname", "different varvalue")
.set("varname2", "varvalue2");
assertEquals("variable section 'varvalue'\n" +
"same variable section 'different varvalue'\n" +
"different variable section 'varvalue2'\n" +
"between ends\n" +
"end of text\n", template.render());
}
@Test
void verifyNestedListSection() {
Template template = getTemplate("template2.tmp");
ListElement A0 = template.add("listA");
ListElement A0B0 = A0.add("listB");
ListElement A0B1 = A0.add("listB");
ListElement A1 = template.add("listA");
ListElement A1B0 = A1.add("listB");
assertEquals("body A\n" +
"body B\n" +
"body B\n" +
"body A\n" +
"body B\n",
template.render());
}
@Test
void verifyVariableReferences() {
Template template = getTemplate("template3.tmp");
template.set("varname", "varvalue")
.set("innerVarSetAtTop", "val2");
template.add("l");
template.add("l")
.set("varname", "varvalue2");
assertEquals("varvalue\n" +
"varvalue\n" +
"inner varvalue\n" +
"val2\n" +
"inner varvalue2\n" +
"val2\n",
template.render());
}
@Test
void badTemplates() {
assertException(BadTemplateException.class, "Unknown section 'zoo' at line 2 and column 6",
() -> Template.from("foo\nbar%{zoo}"));
assertException(BadTemplateException.class, "Expected identifier at line 1 and column 4",
() -> Template.from("%{="));
assertException(BadTemplateException.class, "Expected identifier at line 1 and column 4",
() -> Template.from("%{=¬atoken}"));
assertException(BadTemplateException.class, "Expected identifier at line 1 and column 8",
() -> Template.from("%{list ¬atoken}"));
assertException(BadTemplateException.class, "Missing end directive for section started at line 1 and column 12",
() -> Template.from("%{list foo}missing end"));
assertException(BadTemplateException.class, "Stray 'end' at line 1 and column 3",
() -> Template.from("%{end}stray end"));
assertException(TemplateNameNotSetException.class, "Variable at line 1 and column 4 has not been set: notset",
() -> Template.from("%{=notset}").render());
assertException(TemplateNameNotSetException.class, "Variable at line 1 and column 6 has not been set: cond",
() -> Template.from("%{if cond}%{end}").render());
assertException(NotBooleanValueTemplateException.class, "cond was set to a non-boolean value: must be true or false",
() -> Template.from("%{if cond}%{end}").set("cond", 1).render());
assertException(NoSuchNameTemplateException.class, "No such element 'listname' in the template section starting at " +
"line 1 and column 1, and ending at line 1 and column 4",
() -> Template.from("foo").add("listname"));
assertException(NameAlreadyExistsTemplateException.class,
"The name 'a' of the list section at line 1 and column 16 is in conflict with the identically " +
"named list section at line 1 and column 1",
() -> Template.from("%{list a}%{end}%{list a}%{end}"));
assertException(NameAlreadyExistsTemplateException.class,
"The name 'a' of the list section at line 1 and column 6 is in conflict with the identically " +
"named variable section at line 1 and column 1",
() -> Template.from("%{=a}%{list a}%{end}"));
assertException(NameAlreadyExistsTemplateException.class,
"The name 'a' of the variable section at line 1 and column 16 is in conflict with the identically " +
"named list section at line 1 and column 1",
() -> Template.from("%{list a}%{end}%{=a}"));
assertException(NameAlreadyExistsTemplateException.class,
"The name 'a' of the list section at line 1 and column 14 is in conflict with the identically " +
"named if section at line 1 and column 1",
() -> Template.from("%{if a}%{end}%{list a}%{end}"));
assertException(NameAlreadyExistsTemplateException.class,
"The name 'a' of the if section at line 1 and column 16 is in conflict with the identically " +
"named list section at line 1 and column 1",
() -> Template.from("%{list a}%{end}%{if a}%{end}"));
}
private <T extends Throwable> void assertException(Class<T> class_, String message, Runnable runnable) {
T exception = assertThrows(class_, runnable::run);
assertEquals(message, exception.getMessage());
}
private Template getTemplate(String filename) {
return Template.at(Path.of("src/test/resources/" + filename));
}
}
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