diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/TranspileMojo.java b/eo-maven-plugin/src/main/java/org/eolang/maven/TranspileMojo.java
index 3e4d04a343..d1baa54853 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/TranspileMojo.java
+++ b/eo-maven-plugin/src/main/java/org/eolang/maven/TranspileMojo.java
@@ -82,8 +82,8 @@ public final class TranspileMojo extends SafeMojo {
             new ParsingTrain().empty().with(new StUnhex()),
             "/org/eolang/maven/pre/classes.xsl",
             "/org/eolang/maven/pre/package.xsl",
-            "/org/eolang/maven/pre/junit.xsl",
-            "/org/eolang/maven/pre/rename-junit-inners.xsl",
+            "/org/eolang/maven/pre/xunit.xsl",
+            "/org/eolang/maven/pre/rename-xunit-inners.xsl",
             "/org/eolang/maven/pre/attrs.xsl",
             "/org/eolang/maven/pre/varargs.xsl",
             "/org/eolang/maven/pre/data.xsl"
diff --git a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/rename-junit-inners.xsl b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/rename-xunit-inners.xsl
similarity index 92%
rename from eo-maven-plugin/src/main/resources/org/eolang/maven/pre/rename-junit-inners.xsl
rename to eo-maven-plugin/src/main/resources/org/eolang/maven/pre/rename-xunit-inners.xsl
index 49d03d4481..19ccac2193 100644
--- a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/rename-junit-inners.xsl
+++ b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/rename-xunit-inners.xsl
@@ -22,19 +22,19 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 -->
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:eo="https://www.eolang.org" xmlns:xs="http://www.w3.org/2001/XMLSchema" id="rename-junit-inners" version="2.0">
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:eo="https://www.eolang.org" xmlns:xs="http://www.w3.org/2001/XMLSchema" id="rename-xunit-inners" version="2.0">
   <!--
   This stylesheet renames inner classes, which were placed
-  into junit objects by junit.xsl. Without this cleaning there
+  into xunit objects by xunit.xsl. Without this cleaning there
   could be too long class names.
   -->
   <xsl:output encoding="UTF-8" method="xml"/>
-  <xsl:variable name="junit" select="exists(//meta[head='junit'])"/>
+  <xsl:variable name="xunit" select="exists(//meta[head='junit' or head='xunit'])"/>
   <xsl:function name="eo:name-of" as="xs:string">
     <xsl:param name="class" as="node()"/>
     <xsl:variable name="ret">
       <xsl:choose>
-        <xsl:when test="$junit and $class/@parent">
+        <xsl:when test="$xunit and $class/@parent">
           <xsl:variable name="parent" select="$class/@parent"/>
           <xsl:text>ω</xsl:text>
           <xsl:value-of select="$class/@ancestors"/>
diff --git a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/to-java.xsl b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/to-java.xsl
index 7223091a9d..4de6b1cef9 100644
--- a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/to-java.xsl
+++ b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/to-java.xsl
@@ -131,7 +131,7 @@ SOFTWARE.
         <xsl:apply-templates select="//meta[head='package']" mode="head"/>
         <xsl:text>import org.eolang.*;</xsl:text>
         <xsl:value-of select="eo:eol(0)"/>
-        <xsl:apply-templates select="//meta[head='junit']" mode="head"/>
+        <xsl:apply-templates select="//meta[head='junit' or head='xunit']" mode="head"/>
         <xsl:apply-templates select="." mode="body"/>
       </xsl:element>
     </xsl:copy>
@@ -160,7 +160,7 @@ SOFTWARE.
     <xsl:value-of select="eo:eol(0)"/>
     <xsl:apply-templates select="." mode="ctors"/>
     <xsl:apply-templates select="." mode="equals-and-hashCode"/>
-    <xsl:if test="//meta[head='junit'] and not(@parent)">
+    <xsl:if test="//meta[head='junit' or head='xunit'] and not(@parent)">
       <xsl:apply-templates select="." mode="tests"/>
     </xsl:if>
     <xsl:apply-templates select="class" mode="body"/>
@@ -177,7 +177,7 @@ SOFTWARE.
   <xsl:template match="class" mode="ctors">
     <xsl:value-of select="eo:tabs(1)"/>
     <xsl:choose>
-      <xsl:when test="//meta[head='junit'] and not(@parent)">
+      <xsl:when test="//meta[head='junit' or head='xunit'] and not(@parent)">
         <xsl:text>public </xsl:text>
         <xsl:value-of select="eo:class-name(@name, eo:suffix(@line, @pos))"/>
         <xsl:text>() {</xsl:text>
@@ -646,7 +646,7 @@ SOFTWARE.
     <xsl:value-of select="eo:eol(0)"/>
     <xsl:value-of select="eo:eol(0)"/>
   </xsl:template>
-  <xsl:template match="meta[head='junit']" mode="head">
+  <xsl:template match="meta[head='junit' or head='xunit']" mode="head">
     <xsl:text>import org.junit.jupiter.api.Assertions;</xsl:text>
     <xsl:value-of select="eo:eol(0)"/>
     <xsl:text>import org.junit.jupiter.api.Test;</xsl:text>
diff --git a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/junit.xsl b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/xunit.xsl
similarity index 92%
rename from eo-maven-plugin/src/main/resources/org/eolang/maven/pre/junit.xsl
rename to eo-maven-plugin/src/main/resources/org/eolang/maven/pre/xunit.xsl
index e1645f3f2b..6a4f9cbf3f 100644
--- a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/junit.xsl
+++ b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/xunit.xsl
@@ -22,7 +22,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 -->
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:eo="https://www.eolang.org" xmlns:xs="http://www.w3.org/2001/XMLSchema" id="junit" version="2.0">
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:eo="https://www.eolang.org" xmlns:xs="http://www.w3.org/2001/XMLSchema" id="xunit" version="2.0">
   <!--
   This stylesheet will take outer objects and put them into
   classes that are unit tests.
@@ -47,7 +47,7 @@ SOFTWARE.
   <xsl:template match="class/@name">
     <xsl:attribute name="name">
       <xsl:choose>
-        <xsl:when test="//meta[head='junit']">
+        <xsl:when test="//meta[head='xunit' or head='junit']">
           <xsl:value-of select="eo:name(.)"/>
         </xsl:when>
         <xsl:otherwise>
@@ -61,7 +61,7 @@ SOFTWARE.
     <xsl:variable name="ourRef" select="parent::o/@ref"/>
     <xsl:attribute name="{name()}">
       <xsl:choose>
-        <xsl:when test="//meta[head='junit']">
+        <xsl:when test="//meta[head='xunit' or head='junit']">
           <xsl:choose>
             <xsl:when test="//class[@name=$a and @line=$ourRef]">
               <xsl:value-of select="eo:name($a)"/>
@@ -81,7 +81,7 @@ SOFTWARE.
     <xsl:variable name="a" select="."/>
     <xsl:attribute name="{name()}">
       <xsl:choose>
-        <xsl:when test="//meta[head='junit']">
+        <xsl:when test="//meta[head='xunit' or head='junit']">
           <xsl:choose>
             <xsl:when test="//class[@name=$a]">
               <xsl:value-of select="eo:name($a)"/>
@@ -100,7 +100,7 @@ SOFTWARE.
   <xsl:template match="class" mode="#all">
     <xsl:copy>
       <xsl:apply-templates select="node()|@*"/>
-      <xsl:if test="//meta[head='junit']">
+      <xsl:if test="//meta[head='xunit' or head='junit']">
         <xsl:variable name="c" select="."/>
         <xsl:apply-templates select="//class[@parent=$c/@name]" mode="copy"/>
       </xsl:if>
@@ -108,7 +108,7 @@ SOFTWARE.
   </xsl:template>
   <xsl:template match="objects/class[@parent]" mode="#default">
     <xsl:choose>
-      <xsl:when test="//meta[head='junit']">
+      <xsl:when test="//meta[head='xunit' or head='junit']">
         <!-- kill them -->
       </xsl:when>
       <xsl:otherwise>
diff --git a/eo-maven-plugin/src/test/java/org/eolang/maven/OptimizeMojoTest.java b/eo-maven-plugin/src/test/java/org/eolang/maven/OptimizeMojoTest.java
index 4da3b3f1d3..eb167a3d0a 100644
--- a/eo-maven-plugin/src/test/java/org/eolang/maven/OptimizeMojoTest.java
+++ b/eo-maven-plugin/src/test/java/org/eolang/maven/OptimizeMojoTest.java
@@ -302,7 +302,7 @@ void failsOnWarning(@TempDir final Path temp) throws Exception {
         final FakeMaven maven = new FakeMaven(temp)
             .withProgram(
                 "+architect yegor256@gmail.com",
-                "+junit",
+                "+xunit",
                 "+package org.eolang.examples\n",
                 "[] > main",
                 "  [] > @",
diff --git a/eo-maven-plugin/src/test/resources/org/eolang/maven/mess.eo b/eo-maven-plugin/src/test/resources/org/eolang/maven/mess.eo
index 505bd08d2f..60924e410b 100644
--- a/eo-maven-plugin/src/test/resources/org/eolang/maven/mess.eo
+++ b/eo-maven-plugin/src/test/resources/org/eolang/maven/mess.eo
@@ -4,7 +4,7 @@
 +architect yegor256@gmail.com
 +package org.eolang.examples
 +alias org.eolang.io.stdout
-+junit
++xunit
 
 3.14 > pi
 
diff --git a/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-moving-inside.yaml b/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-moving-inside.yaml
index ae9d30fb83..347f225a5e 100644
--- a/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-moving-inside.yaml
+++ b/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-moving-inside.yaml
@@ -2,8 +2,8 @@ xsls:
   - /org/eolang/parser/optimize/abstracts-float-up.xsl
   - /org/eolang/maven/pre/classes.xsl
   - /org/eolang/parser/remove-noise.xsl
-  - /org/eolang/maven/pre/junit.xsl
-  - /org/eolang/maven/pre/rename-junit-inners.xsl
+  - /org/eolang/maven/pre/xunit.xsl
+  - /org/eolang/maven/pre/rename-xunit-inners.xsl
 tests:
   - /program/errors[count(*)=0]
   - /program[count(//class)=5]
@@ -11,7 +11,7 @@ tests:
   - //class[@name='ω3t0$a0' and @parent='ω2c']
   - //o[@base='ω2c' and @name='c']
 eo: |
-  +junit
+  +xunit
   
   [] > a
     [] > b
diff --git a/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-test.yaml b/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-test.yaml
index e104250c72..a42b8afb9c 100644
--- a/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-test.yaml
+++ b/eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/junit-test.yaml
@@ -16,7 +16,7 @@ tests:
   - /program/errors[count(*)=0]
   - //java[contains(text(), '@Test')]
 eo: |
-  +junit
+  +xunit
   
   [] > works
     1.eq 1 > @
diff --git a/eo-maven-plugin/src/test/resources/org/eolang/maven/witherror.eo b/eo-maven-plugin/src/test/resources/org/eolang/maven/witherror.eo
index a67b993521..19aff0d848 100644
--- a/eo-maven-plugin/src/test/resources/org/eolang/maven/witherror.eo
+++ b/eo-maven-plugin/src/test/resources/org/eolang/maven/witherror.eo
@@ -3,7 +3,7 @@
 
 +architect yegor256@gmail.com
 +package org.eolang.examples
-+junit
++xunit
 
 [] > main
   [] < @
diff --git a/eo-maven-plugin/src/test/resources/org/eolang/maven/withwarning.eo b/eo-maven-plugin/src/test/resources/org/eolang/maven/withwarning.eo
index 19760f7531..6e401aaffa 100644
--- a/eo-maven-plugin/src/test/resources/org/eolang/maven/withwarning.eo
+++ b/eo-maven-plugin/src/test/resources/org/eolang/maven/withwarning.eo
@@ -2,7 +2,7 @@
 # program, to be ignored.
 
 +architect yegor256@gmail.com
-+junit
++xunit
 +package org.eolang.examples
 
 [] > main
diff --git a/eo-parser/src/main/resources/org/eolang/parser/warnings/unit-test-without-phi.xsl b/eo-parser/src/main/resources/org/eolang/parser/warnings/unit-test-without-phi.xsl
index 0d94083e6b..acbe3dd9e9 100644
--- a/eo-parser/src/main/resources/org/eolang/parser/warnings/unit-test-without-phi.xsl
+++ b/eo-parser/src/main/resources/org/eolang/parser/warnings/unit-test-without-phi.xsl
@@ -27,7 +27,7 @@ SOFTWARE.
   <xsl:template match="/program/errors">
     <xsl:copy>
       <xsl:apply-templates select="node()|@*"/>
-      <xsl:for-each select="/program[//meta[head='junit']]/objects/o[@abstract][count(o[@name='@'])=0]">
+      <xsl:for-each select="/program[//meta[head='junit' or head='xunit']]/objects/o[@abstract][count(o[@name='@'])=0]">
         <xsl:element name="error">
           <xsl:attribute name="check">
             <xsl:text>unit-test-without-phi</xsl:text>
diff --git a/eo-parser/src/test/resources/org/eolang/parser/packs/catches/catches-unit-test-without-phi.yaml b/eo-parser/src/test/resources/org/eolang/parser/packs/catches/catches-unit-test-without-phi.yaml
index 95d6f7fada..33e0ec016f 100644
--- a/eo-parser/src/test/resources/org/eolang/parser/packs/catches/catches-unit-test-without-phi.yaml
+++ b/eo-parser/src/test/resources/org/eolang/parser/packs/catches/catches-unit-test-without-phi.yaml
@@ -6,7 +6,7 @@ tests:
   - /program/errors/error[@check='unit-test-without-phi']
   - //o[@name='test']
 eo: |
-  +junit
+  +xunit
 
   [] > test
     TRUE
diff --git a/eo-runtime/src/test/eo/org/eolang/array-tests.eo b/eo-runtime/src/test/eo/org/eolang/array-tests.eo
index ffcda33619..23726ec9a8 100644
--- a/eo-runtime/src/test/eo/org/eolang/array-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/array-tests.eo
@@ -24,7 +24,7 @@
 +alias org.eolang.hamcrest.assert-that
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/as-phi-tests.eo b/eo-runtime/src/test/eo/org/eolang/as-phi-tests.eo
index 21a27bb2b9..ba23bc2ec2 100644
--- a/eo-runtime/src/test/eo/org/eolang/as-phi-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/as-phi-tests.eo
@@ -24,7 +24,7 @@
 +alias org.eolang.io.stdout
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/bool-tests.eo b/eo-runtime/src/test/eo/org/eolang/bool-tests.eo
index 84d386cf9d..4dabe45080 100644
--- a/eo-runtime/src/test/eo/org/eolang/bool-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/bool-tests.eo
@@ -26,7 +26,7 @@
 +alias org.eolang.txt.sprintf
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/bytes-tests.eo b/eo-runtime/src/test/eo/org/eolang/bytes-tests.eo
index 5ddf2f18ba..1d1e45d99b 100644
--- a/eo-runtime/src/test/eo/org/eolang/bytes-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/bytes-tests.eo
@@ -23,7 +23,7 @@
 +alias org.eolang.hamcrest.assert-that
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/cage-tests.eo b/eo-runtime/src/test/eo/org/eolang/cage-tests.eo
index dbd3823354..9628486ab9 100644
--- a/eo-runtime/src/test/eo/org/eolang/cage-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/cage-tests.eo
@@ -23,7 +23,7 @@
 +alias org.eolang.hamcrest.assert-that
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/float-tests.eo b/eo-runtime/src/test/eo/org/eolang/float-tests.eo
index 6bb431d5a3..abeb2a453d 100644
--- a/eo-runtime/src/test/eo/org/eolang/float-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/float-tests.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+junit
++xunit
 +version 0.0.0
 
 [] > less-true
diff --git a/eo-runtime/src/test/eo/org/eolang/goto-tests.eo b/eo-runtime/src/test/eo/org/eolang/goto-tests.eo
index dde039145d..ac3a13d755 100644
--- a/eo-runtime/src/test/eo/org/eolang/goto-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/goto-tests.eo
@@ -25,7 +25,7 @@
 +alias org.eolang.io.stdout
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/heap-tests.eo b/eo-runtime/src/test/eo/org/eolang/heap-tests.eo
index df85bf4295..7a062dbc79 100644
--- a/eo-runtime/src/test/eo/org/eolang/heap-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/heap-tests.eo
@@ -24,7 +24,7 @@
 +alias org.eolang.heap
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/int-tests.eo b/eo-runtime/src/test/eo/org/eolang/int-tests.eo
index 3eca0af7ae..6340506e7e 100644
--- a/eo-runtime/src/test/eo/org/eolang/int-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/int-tests.eo
@@ -25,7 +25,7 @@
 +alias org.eolang.txt.sprintf
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/io/stdout-tests.eo b/eo-runtime/src/test/eo/org/eolang/io/stdout-tests.eo
index f4533c5670..9879af3d33 100644
--- a/eo-runtime/src/test/eo/org/eolang/io/stdout-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/io/stdout-tests.eo
@@ -25,7 +25,7 @@
 +alias stdout org.eolang.io.stdout
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang.io
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/memory-tests.eo b/eo-runtime/src/test/eo/org/eolang/memory-tests.eo
index 1a2941102c..3c00a07892 100644
--- a/eo-runtime/src/test/eo/org/eolang/memory-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/memory-tests.eo
@@ -25,7 +25,7 @@
 +alias org.eolang.txt.sprintf
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/nan-tests.eo b/eo-runtime/src/test/eo/org/eolang/nan-tests.eo
index bbd6f7a5a1..b2d9fe1a41 100644
--- a/eo-runtime/src/test/eo/org/eolang/nan-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/nan-tests.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+junit
++xunit
 +version 0.0.0
 
 [] > nan-not-eq-number
diff --git a/eo-runtime/src/test/eo/org/eolang/negative-infinity-tests.eo b/eo-runtime/src/test/eo/org/eolang/negative-infinity-tests.eo
index 5abe673a1f..fb4dda21ae 100644
--- a/eo-runtime/src/test/eo/org/eolang/negative-infinity-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/negative-infinity-tests.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+junit
++xunit
 +version 0.0.0
 
 # Equal to
diff --git a/eo-runtime/src/test/eo/org/eolang/nop-tests.eo b/eo-runtime/src/test/eo/org/eolang/nop-tests.eo
index 14925fbb12..a16fa5ff1e 100644
--- a/eo-runtime/src/test/eo/org/eolang/nop-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/nop-tests.eo
@@ -24,7 +24,7 @@
 +alias org.eolang.nop
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/positive-infinity-tests.eo b/eo-runtime/src/test/eo/org/eolang/positive-infinity-tests.eo
index fafe0be4d4..ef62e68b45 100644
--- a/eo-runtime/src/test/eo/org/eolang/positive-infinity-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/positive-infinity-tests.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+junit
++xunit
 +version 0.0.0
 
 # Equal to
diff --git a/eo-runtime/src/test/eo/org/eolang/ram-tests.eo b/eo-runtime/src/test/eo/org/eolang/ram-tests.eo
index b5e8f6c573..15d873eaa2 100644
--- a/eo-runtime/src/test/eo/org/eolang/ram-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/ram-tests.eo
@@ -24,7 +24,7 @@
 +alias org.eolang.ram
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/runtime-tests.eo b/eo-runtime/src/test/eo/org/eolang/runtime-tests.eo
index 68803ce6e7..286da4e060 100644
--- a/eo-runtime/src/test/eo/org/eolang/runtime-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/runtime-tests.eo
@@ -26,7 +26,7 @@
 +alias org.eolang.txt.sprintf
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/rust-tests.eo b/eo-runtime/src/test/eo/org/eolang/rust-tests.eo
index 08b133860f..e62deb9e7a 100644
--- a/eo-runtime/src/test/eo/org/eolang/rust-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/rust-tests.eo
@@ -22,7 +22,7 @@
 
 +alias org.eolang.hamcrest.assert-that
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/seq-tests.eo b/eo-runtime/src/test/eo/org/eolang/seq-tests.eo
index f48418df04..f42c608819 100644
--- a/eo-runtime/src/test/eo/org/eolang/seq-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/seq-tests.eo
@@ -23,7 +23,7 @@
 +alias org.eolang.hamcrest.assert-that
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/string-tests.eo b/eo-runtime/src/test/eo/org/eolang/string-tests.eo
index 973abb2170..9efdca4264 100644
--- a/eo-runtime/src/test/eo/org/eolang/string-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/string-tests.eo
@@ -23,7 +23,7 @@
 +alias org.eolang.hamcrest.assert-that
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/switch-tests.eo b/eo-runtime/src/test/eo/org/eolang/switch-tests.eo
index 5dd34f9706..0b97f55760 100644
--- a/eo-runtime/src/test/eo/org/eolang/switch-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/switch-tests.eo
@@ -23,7 +23,7 @@
 +alias org.eolang.hamcrest.assert-that
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/try-tests.eo b/eo-runtime/src/test/eo/org/eolang/try-tests.eo
index 1e543acfbb..cc58edd6c5 100644
--- a/eo-runtime/src/test/eo/org/eolang/try-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/try-tests.eo
@@ -24,7 +24,7 @@
 +alias org.eolang.try
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
diff --git a/eo-runtime/src/test/eo/org/eolang/junit-tests.eo b/eo-runtime/src/test/eo/org/eolang/xunit-tests.eo
similarity index 96%
rename from eo-runtime/src/test/eo/org/eolang/junit-tests.eo
rename to eo-runtime/src/test/eo/org/eolang/xunit-tests.eo
index e3cff508d1..cf07283888 100644
--- a/eo-runtime/src/test/eo/org/eolang/junit-tests.eo
+++ b/eo-runtime/src/test/eo/org/eolang/xunit-tests.eo
@@ -23,7 +23,7 @@
 +alias assertThat org.eolang.hamcrest.assert-that
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
-+junit
++xunit
 +package org.eolang
 +version 0.0.0
 
@@ -40,4 +40,4 @@
     "anything"
     $.is
       $.anything
-    "assert that should works with junit"
+    "assert that should works with xunit"