diff --git a/engine/src/flutter/third_party/txt/BUILD.gn b/engine/src/flutter/third_party/txt/BUILD.gn
index 48ce317308..b9f6227b41 100644
--- a/engine/src/flutter/third_party/txt/BUILD.gn
+++ b/engine/src/flutter/third_party/txt/BUILD.gn
@@ -115,6 +115,21 @@ executable("txt_unittests") {
   testonly = true
 
   sources = [
+    "tests/CmapCoverageTest.cpp",
+    "tests/EmojiTest.cpp",
+    "tests/FileUtils.cpp",
+    "tests/FileUtils.h",
+    "tests/FontTestUtils.h",
+    "tests/GraphemeBreakTests.cpp",
+    "tests/ICUTestBase.h",
+    "tests/LayoutUtilsTest.cpp",
+    "tests/MeasurementTests.cpp",
+    "tests/MinikinFontForTest.cpp",
+    "tests/MinikinFontForTest.h",
+    "tests/SparseBitSetTest.cpp",
+    "tests/UnicodeUtils.cpp",
+    "tests/UnicodeUtils.h",
+    "tests/UnicodeUtilsTest.cpp",
     "tests/font_collection_unittests.cc",
     "tests/paragraph_unittests.cc",
     "tests/render_test.cc",
@@ -122,6 +137,16 @@ executable("txt_unittests") {
     "tests/txt_run_all_unittests.cc",
     "tests/utils.cc",
     "tests/utils.h",
+
+    # These tests require static fixtures.
+    # "tests/FontCollectionItemizeTest.cpp",
+    # "tests/FontCollectionTest.cpp",
+    # "tests/FontFamilyTest.cpp",
+    # "tests/FontLanguageListCacheTest.cpp",
+    # "tests/FontTestUtils.cpp",
+    # "tests/HbFontCacheTest.cpp",
+    # "tests/HyphenatorTest.cpp",
+    # "tests/LayoutTest.cpp",
   ]
 
   deps = [
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/CmapCoverageTest.cpp b/engine/src/flutter/third_party/txt/tests/CmapCoverageTest.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/CmapCoverageTest.cpp
rename to engine/src/flutter/third_party/txt/tests/CmapCoverageTest.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/EmojiTest.cpp b/engine/src/flutter/third_party/txt/tests/EmojiTest.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/EmojiTest.cpp
rename to engine/src/flutter/third_party/txt/tests/EmojiTest.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/FileUtils.cpp b/engine/src/flutter/third_party/txt/tests/FileUtils.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/util/FileUtils.cpp
rename to engine/src/flutter/third_party/txt/tests/FileUtils.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/FileUtils.h b/engine/src/flutter/third_party/txt/tests/FileUtils.h
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/util/FileUtils.h
rename to engine/src/flutter/third_party/txt/tests/FileUtils.h
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/FontCollectionItemizeTest.cpp b/engine/src/flutter/third_party/txt/tests/FontCollectionItemizeTest.cpp
similarity index 99%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/FontCollectionItemizeTest.cpp
rename to engine/src/flutter/third_party/txt/tests/FontCollectionItemizeTest.cpp
index 0c98df51da..9494d8f3d0 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/FontCollectionItemizeTest.cpp
+++ b/engine/src/flutter/third_party/txt/tests/FontCollectionItemizeTest.cpp
@@ -22,10 +22,10 @@
 #include "ICUTestBase.h"
 #include "MinikinFontForTest.h"
 #include "UnicodeUtils.h"
-#include "lib/txt/libs/minikin/FontLanguage.h"
-#include "lib/txt/libs/minikin/FontLanguageListCache.h"
-#include "lib/txt/libs/minikin/MinikinInternal.h"
 #include "minikin/FontFamily.h"
+#include "minikin/FontLanguage.h"
+#include "minikin/FontLanguageListCache.h"
+#include "minikin/MinikinInternal.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/FontCollectionTest.cpp b/engine/src/flutter/third_party/txt/tests/FontCollectionTest.cpp
similarity index 99%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/FontCollectionTest.cpp
rename to engine/src/flutter/third_party/txt/tests/FontCollectionTest.cpp
index fb2f11180a..64b7921277 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/FontCollectionTest.cpp
+++ b/engine/src/flutter/third_party/txt/tests/FontCollectionTest.cpp
@@ -19,7 +19,7 @@
 #include <minikin/FontCollection.h>
 #include "FontTestUtils.h"
 #include "MinikinFontForTest.h"
-#include "lib/txt/libs/minikin/MinikinInternal.h"
+#include "minikin/MinikinInternal.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/FontFamilyTest.cpp b/engine/src/flutter/third_party/txt/tests/FontFamilyTest.cpp
similarity index 99%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/FontFamilyTest.cpp
rename to engine/src/flutter/third_party/txt/tests/FontFamilyTest.cpp
index 68d6d51b41..eb7cb1752a 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/FontFamilyTest.cpp
+++ b/engine/src/flutter/third_party/txt/tests/FontFamilyTest.cpp
@@ -21,8 +21,8 @@
 
 #include "ICUTestBase.h"
 #include "MinikinFontForTest.h"
-#include "lib/txt/libs/minikin/FontLanguageListCache.h"
-#include "lib/txt/libs/minikin/MinikinInternal.h"
+#include "minikin/FontLanguageListCache.h"
+#include "minikin/MinikinInternal.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/FontLanguageListCacheTest.cpp b/engine/src/flutter/third_party/txt/tests/FontLanguageListCacheTest.cpp
similarity index 96%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/FontLanguageListCacheTest.cpp
rename to engine/src/flutter/third_party/txt/tests/FontLanguageListCacheTest.cpp
index 5c20f0977f..4a0dfada8f 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/FontLanguageListCacheTest.cpp
+++ b/engine/src/flutter/third_party/txt/tests/FontLanguageListCacheTest.cpp
@@ -19,8 +19,8 @@
 #include <minikin/FontFamily.h>
 
 #include "ICUTestBase.h"
-#include "lib/txt/libs/minikin/FontLanguageListCache.h"
-#include "lib/txt/libs/minikin/MinikinInternal.h"
+#include "minikin/FontLanguageListCache.h"
+#include "minikin/MinikinInternal.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/FontTestUtils.cpp b/engine/src/flutter/third_party/txt/tests/FontTestUtils.cpp
similarity index 98%
rename from engine/src/flutter/third_party/txt/tests/old/util/FontTestUtils.cpp
rename to engine/src/flutter/third_party/txt/tests/FontTestUtils.cpp
index acb4fee503..00b78ebd14 100644
--- a/engine/src/flutter/third_party/txt/tests/old/util/FontTestUtils.cpp
+++ b/engine/src/flutter/third_party/txt/tests/FontTestUtils.cpp
@@ -24,7 +24,7 @@
 #include <minikin/FontCollection.h>
 #include <minikin/FontFamily.h>
 #include "MinikinFontForTest.h"
-#include "lib/txt/libs/minikin/FontLanguage.h"
+#include "minikin/FontLanguage.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/FontTestUtils.h b/engine/src/flutter/third_party/txt/tests/FontTestUtils.h
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/util/FontTestUtils.h
rename to engine/src/flutter/third_party/txt/tests/FontTestUtils.h
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/GraphemeBreakTests.cpp b/engine/src/flutter/third_party/txt/tests/GraphemeBreakTests.cpp
similarity index 99%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/GraphemeBreakTests.cpp
rename to engine/src/flutter/third_party/txt/tests/GraphemeBreakTests.cpp
index 7350b5b0ef..58b386555c 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/GraphemeBreakTests.cpp
+++ b/engine/src/flutter/third_party/txt/tests/GraphemeBreakTests.cpp
@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-#include <UnicodeUtils.h>
 #include <gtest/gtest.h>
 #include <minikin/GraphemeBreak.h>
+#include "UnicodeUtils.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/HbFontCacheTest.cpp b/engine/src/flutter/third_party/txt/tests/HbFontCacheTest.cpp
similarity index 96%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/HbFontCacheTest.cpp
rename to engine/src/flutter/third_party/txt/tests/HbFontCacheTest.cpp
index 5edd016b45..fb886a8bd1 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/HbFontCacheTest.cpp
+++ b/engine/src/flutter/third_party/txt/tests/HbFontCacheTest.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "lib/txt/libs/minikin/HbFontCache.h"
+#include "minikin/HbFontCache.h"
 
 #include <gtest/gtest.h>
 #include <log/log.h>
@@ -26,7 +26,7 @@
 
 #include <minikin/MinikinFont.h>
 #include "MinikinFontForTest.h"
-#include "lib/txt/libs/minikin/MinikinInternal.h"
+#include "minikin/MinikinInternal.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/HyphenatorTest.cpp b/engine/src/flutter/third_party/txt/tests/HyphenatorTest.cpp
similarity index 99%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/HyphenatorTest.cpp
rename to engine/src/flutter/third_party/txt/tests/HyphenatorTest.cpp
index f7daf414e3..886b38dc12 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/HyphenatorTest.cpp
+++ b/engine/src/flutter/third_party/txt/tests/HyphenatorTest.cpp
@@ -16,8 +16,8 @@
 
 #include <gtest/gtest.h>
 
-#include <FileUtils.h>
 #include <minikin/Hyphenator.h>
+#include "FileUtils.h"
 #include "ICUTestBase.h"
 
 #ifndef NELEM
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/ICUTestBase.h b/engine/src/flutter/third_party/txt/tests/ICUTestBase.h
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/ICUTestBase.h
rename to engine/src/flutter/third_party/txt/tests/ICUTestBase.h
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/LayoutTest.cpp b/engine/src/flutter/third_party/txt/tests/LayoutTest.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/LayoutTest.cpp
rename to engine/src/flutter/third_party/txt/tests/LayoutTest.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/LayoutUtilsTest.cpp b/engine/src/flutter/third_party/txt/tests/LayoutUtilsTest.cpp
similarity index 99%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/LayoutUtilsTest.cpp
rename to engine/src/flutter/third_party/txt/tests/LayoutUtilsTest.cpp
index b10610b9fa..1c57e4b903 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/LayoutUtilsTest.cpp
+++ b/engine/src/flutter/third_party/txt/tests/LayoutUtilsTest.cpp
@@ -14,10 +14,10 @@
  * limitations under the License.
  */
 
-#include <UnicodeUtils.h>
 #include <gtest/gtest.h>
+#include "UnicodeUtils.h"
 
-#include "lib/txt/libs/minikin/LayoutUtils.h"
+#include "minikin/LayoutUtils.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/MeasurementTests.cpp b/engine/src/flutter/third_party/txt/tests/MeasurementTests.cpp
similarity index 98%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/MeasurementTests.cpp
rename to engine/src/flutter/third_party/txt/tests/MeasurementTests.cpp
index d6daf42fa4..ea3b7007e3 100644
--- a/engine/src/flutter/third_party/txt/tests/old/unittest/MeasurementTests.cpp
+++ b/engine/src/flutter/third_party/txt/tests/MeasurementTests.cpp
@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-#include <UnicodeUtils.h>
 #include <gtest/gtest.h>
 #include <minikin/Measurement.h>
+#include "UnicodeUtils.h"
 
 namespace minikin {
 
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/MinikinFontForTest.cpp b/engine/src/flutter/third_party/txt/tests/MinikinFontForTest.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/util/MinikinFontForTest.cpp
rename to engine/src/flutter/third_party/txt/tests/MinikinFontForTest.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/MinikinFontForTest.h b/engine/src/flutter/third_party/txt/tests/MinikinFontForTest.h
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/util/MinikinFontForTest.h
rename to engine/src/flutter/third_party/txt/tests/MinikinFontForTest.h
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/SparseBitSetTest.cpp b/engine/src/flutter/third_party/txt/tests/SparseBitSetTest.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/SparseBitSetTest.cpp
rename to engine/src/flutter/third_party/txt/tests/SparseBitSetTest.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/UnicodeUtils.cpp b/engine/src/flutter/third_party/txt/tests/UnicodeUtils.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/util/UnicodeUtils.cpp
rename to engine/src/flutter/third_party/txt/tests/UnicodeUtils.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/util/UnicodeUtils.h b/engine/src/flutter/third_party/txt/tests/UnicodeUtils.h
similarity index 98%
rename from engine/src/flutter/third_party/txt/tests/old/util/UnicodeUtils.h
rename to engine/src/flutter/third_party/txt/tests/UnicodeUtils.h
index 564ffccdde..24f7acc343 100644
--- a/engine/src/flutter/third_party/txt/tests/old/util/UnicodeUtils.h
+++ b/engine/src/flutter/third_party/txt/tests/UnicodeUtils.h
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#include <cstdint>
+
 namespace minikin {
 
 void ParseUnicode(uint16_t* buf,
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/UnicodeUtilsTest.cpp b/engine/src/flutter/third_party/txt/tests/UnicodeUtilsTest.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/UnicodeUtilsTest.cpp
rename to engine/src/flutter/third_party/txt/tests/UnicodeUtilsTest.cpp
diff --git a/engine/src/flutter/third_party/txt/tests/old/unittest/WordBreakerTests.cpp b/engine/src/flutter/third_party/txt/tests/WordBreakerTests.cpp
similarity index 100%
rename from engine/src/flutter/third_party/txt/tests/old/unittest/WordBreakerTests.cpp
rename to engine/src/flutter/third_party/txt/tests/WordBreakerTests.cpp