diff --git a/src/test/java/com/google/devtools/build/lib/blackbox/tests/NinjaBlackBoxTest.java b/src/test/java/com/google/devtools/build/lib/blackbox/tests/NinjaBlackBoxTest.java
index 0ca1101..32d5680 100644
--- a/src/test/java/com/google/devtools/build/lib/blackbox/tests/NinjaBlackBoxTest.java
+++ b/src/test/java/com/google/devtools/build/lib/blackbox/tests/NinjaBlackBoxTest.java
@@ -373,7 +373,7 @@
   }
 
   @Test
-  public void testDisjointUsualNinjaParts() throws Exception {
+  public void testDisjointNinjaParts() throws Exception {
     context().write("build_dir/a.txt", "A");
     context().write("build_dir/b.txt", "B");
     context().write("build_dir/c.txt", "C");
@@ -424,7 +424,7 @@
   }
 
   @Test
-  public void testDuplicateUsualNinjaParts() throws Exception {
+  public void testDuplicateNinjaParts() throws Exception {
     context().write("build_dir/a.txt", "A");
     context().write("build_dir/b.txt", "B");
     context().write("build_dir/c.txt", "C");
@@ -447,8 +447,7 @@
             " main = 'build_dir/build.ninja',",
             " output_root_inputs = ['a.txt', 'b.txt', 'c.txt', 'd.txt', 'e.txt'])",
             // 'a' is present in both ninja_build targets, built by Bazel since file 'a' is produced
-            // by
-            // equal-without-owner actions.
+            // by equal-without-owner actions.
             "ninja_build(name = 'ninja_target1', ninja_graph = 'graph',",
             " output_groups= {'main': ['a']})",
             "ninja_build(name = 'ninja_target2', ninja_graph = 'graph',",
@@ -464,7 +463,7 @@
   }
 
   @Test
-  public void testDuplicateUsualNinjaPartsDifferentMappings() throws Exception {
+  public void testDuplicateNinjaPartsDifferentMappings() throws Exception {
     context().write("variant1.txt", "variant1");
     context().write("variant2.txt", "variant2");
 
@@ -488,18 +487,17 @@
 
     BuilderRunner bazel = context().bazel().withFlags("--experimental_ninja_actions");
 
-    // Exception to do not tow additional dependencies into current test. (ActionConflictException)
     Exception exception = assertThrows(Exception.class, () -> bazel.build("//..."));
     assertThat(exception)
         .hasMessageThat()
         .contains("ERROR: file 'a.txt' is generated by these conflicting actions:");
     assertThat(exception)
         .hasMessageThat()
-        .contains(
-            "for a.txt, previous action: action "
-                + "'Symlinking deps_mapping entry 'variant1.txt' to 'build_dir/a.txt'', "
+        .containsMatch(
+            "for a\\.txt, previous action: action "
+                + "'Symlinking deps_mapping entry 'variant[12]\\.txt' to 'build_dir/a\\.txt'', "
                 + "attempted action: action "
-                + "'Symlinking deps_mapping entry 'variant2.txt' to 'build_dir/a.txt''");
+                + "'Symlinking deps_mapping entry 'variant[12]\\.txt' to 'build_dir/a\\.txt''");
   }
 
   @Test