diff --git a/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptCodeBlockProviderTest.java b/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptCodeBlockProviderTest.java
index 4637cc24..79b9c34b 100644
--- a/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptCodeBlockProviderTest.java
+++ b/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptCodeBlockProviderTest.java
@@ -52,19 +52,19 @@ public void testCodeBlocks() {
                         """,
                 new int[][]{
                         // From "console" to the begin and end of the "demo()" function's braced block
-                        {before(DEMO_TS_FILE_BODY, "console", 1), after(DEMO_TS_FILE_BODY, "{", 2), beforeLast(DEMO_TS_FILE_BODY, "}", 2)},
+                        {beforeFirst(DEMO_TS_FILE_BODY, "console", 1), afterFirst(DEMO_TS_FILE_BODY, "{", 2), beforeLast(DEMO_TS_FILE_BODY, "}", 2)},
                         // From "demo" to the begin and end of the "Demo" class's braced block
-                        {before(DEMO_TS_FILE_BODY, "demo", 1), after(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
+                        {beforeFirst(DEMO_TS_FILE_BODY, "demo", 1), afterFirst(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
                         // From before the "Demo" class' open brace to the begin and end of the "Demo" class' braced block
-                        {before(DEMO_TS_FILE_BODY, "{", 1), after(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
+                        {beforeFirst(DEMO_TS_FILE_BODY, "{", 1), afterFirst(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
                         // From after the "Demo" class' open brace to the begin and end of the "Demo" class' braced block
-                        {after(DEMO_TS_FILE_BODY, "{", 1), after(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
+                        {afterFirst(DEMO_TS_FILE_BODY, "{", 1), afterFirst(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
                         // From before the "Demo" class' close brace to the begin and end of the "Demo" class' braced block
-                        {beforeLast(DEMO_TS_FILE_BODY, "}", 1), after(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
+                        {beforeLast(DEMO_TS_FILE_BODY, "}", 1), afterFirst(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
                         // From after the "Demo" class' close brace to the begin and end of the "Demo" class' braced block
-                        {afterLast(DEMO_TS_FILE_BODY, "}", 1), after(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
+                        {afterLast(DEMO_TS_FILE_BODY, "}", 1), afterFirst(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1)},
                         // From "Demo" which shouldn't move at all
-                        {before(DEMO_TS_FILE_BODY, "Demo", 1), before(DEMO_TS_FILE_BODY, "Demo", 1), before(DEMO_TS_FILE_BODY, "Demo", 1)}
+                        {beforeFirst(DEMO_TS_FILE_BODY, "Demo", 1), beforeFirst(DEMO_TS_FILE_BODY, "Demo", 1), beforeFirst(DEMO_TS_FILE_BODY, "Demo", 1)}
                 }
         );
     }
diff --git a/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptFoldingRangeTest.java b/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptFoldingRangeTest.java
index 6e0463fa..72967098 100644
--- a/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptFoldingRangeTest.java
+++ b/src/test/java/com/redhat/devtools/lsp4ij/features/foldingRange/TypeScriptFoldingRangeTest.java
@@ -30,9 +30,9 @@ export class Demo {
             """;
 
     // Demo class braced block exclusive of braces
-    private static final TextRange DEMO_CLASS_BODY_TEXT_RANGE = TextRange.create(19, 68);
+    private static final TextRange DEMO_CLASS_BODY_TEXT_RANGE = TextRange.create(afterFirst(DEMO_TS_FILE_BODY, "{", 1), beforeLast(DEMO_TS_FILE_BODY, "}", 1));
     // demo() function braced block exclusive of braces
-    private static final TextRange DEMO_METHOD_BODY_TEXT_RANGE = TextRange.create(32, 66);
+    private static final TextRange DEMO_METHOD_BODY_TEXT_RANGE = TextRange.create(afterFirst(DEMO_TS_FILE_BODY, "{", 2), beforeLast(DEMO_TS_FILE_BODY, "}", 2));
 
     public TypeScriptFoldingRangeTest() {
         super("*.ts");
diff --git a/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeBlockProviderFixtureTestCase.java b/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeBlockProviderFixtureTestCase.java
index e854a37e..9fa7bfe2 100644
--- a/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeBlockProviderFixtureTestCase.java
+++ b/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeBlockProviderFixtureTestCase.java
@@ -35,48 +35,6 @@ protected LSPCodeBlockProviderFixtureTestCase(String... fileNamePatterns) {
         super(fileNamePatterns);
     }
 
-    protected static int before(@NotNull String fileBody, @NotNull String snippet, int count) {
-        int fromIndex = 0;
-        for (int i = 0; i < count; i++) {
-            int index = fileBody.indexOf(snippet, fromIndex);
-            assertFalse("Failed to find occurrence " + (i + 1) + " of '" + snippet + "'.", index == -1);
-            if (count == (i + 1)) {
-                return index;
-            } else {
-                fromIndex = index + 1;
-                if (fromIndex == fileBody.length()) {
-                    fail("Failed to find occurrence " + (i + 1) + " of '" + snippet + "'.");
-                }
-            }
-        }
-        return fromIndex;
-    }
-
-    protected static int after(@NotNull String fileBody, @NotNull String snippet, int count) {
-        return before(fileBody, snippet, count) + snippet.length();
-    }
-
-    protected static int beforeLast(@NotNull String fileBody, @NotNull String snippet, int count) {
-        int fromIndex = fileBody.length() - 1;
-        for (int i = 0; i < count; i++) {
-            int index = fileBody.lastIndexOf(snippet, fromIndex);
-            assertFalse("Failed to find last occurrence " + (i + 1) + " of '" + snippet + "'.", index == -1);
-            if (count == (i + 1)) {
-                return index;
-            } else {
-                fromIndex = index - 1;
-                if (fromIndex == 0) {
-                    fail("Failed to find occurrence " + (i + 1) + " of '" + snippet + "'.");
-                }
-            }
-        }
-        return fromIndex;
-    }
-
-    protected static int afterLast(@NotNull String fileBody, @NotNull String snippet, int count) {
-        return beforeLast(fileBody, snippet, count) + snippet.length();
-    }
-
     protected void assertCodeBlocks(@NotNull String fileName,
                                     @NotNull String fileBody,
                                     @NotNull String mockFoldingRangesJson,
diff --git a/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeInsightFixtureTestCase.java b/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeInsightFixtureTestCase.java
index 5d6cf6a3..a9b364a6 100644
--- a/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeInsightFixtureTestCase.java
+++ b/src/test/java/com/redhat/devtools/lsp4ij/fixtures/LSPCodeInsightFixtureTestCase.java
@@ -18,6 +18,7 @@
 import com.redhat.devtools.lsp4ij.launching.ServerMappingSettings;
 import com.redhat.devtools.lsp4ij.mock.MockLanguageServer;
 import com.redhat.devtools.lsp4ij.mock.MockLanguageServerDefinition;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
 
@@ -72,4 +73,85 @@ private void registerServer() {
     private void unregisterServer() {
         LanguageServersRegistry.getInstance().removeServerDefinition(myFixture.getProject(), serverDefinition);
     }
+
+    // Utility methods for getting the before/after index of the n'th occurrence of a substring of the test file body
+    // from the beginning or end as appropriate. These methods help to avoid hard-coding offsets into the file.
+
+    /**
+     * Returns the index immediately <i>before</i> the {@code count} occurrence of {@code snippet} in {@code fileBody}
+     * searching from the beginning.
+     *
+     * @param fileBody the file body
+     * @param snippet  the search snippet
+     * @param count    the occurrence count
+     * @return the index immediately before the occurrence; fails fast if not found
+     */
+    protected static int beforeFirst(@NotNull String fileBody, @NotNull String snippet, int count) {
+        int fromIndex = 0;
+        for (int i = 0; i < count; i++) {
+            int index = fileBody.indexOf(snippet, fromIndex);
+            assertFalse("Failed to find occurrence " + (i + 1) + " of '" + snippet + "'.", index == -1);
+            if (count == (i + 1)) {
+                return index;
+            } else {
+                fromIndex = index + 1;
+                if (fromIndex == fileBody.length()) {
+                    fail("Failed to find occurrence " + (i + 1) + " of '" + snippet + "'.");
+                }
+            }
+        }
+        return fromIndex;
+    }
+
+    /**
+     * Returns the index immediately <i>after</i> the {@code count} occurrence of {@code snippet} in {@code fileBody}
+     * searching from the beginning.
+     *
+     * @param fileBody the file body
+     * @param snippet  the search snippet
+     * @param count    the occurrence count
+     * @return the index immediately after the occurrence; fails fast if not found
+     */
+    protected static int afterFirst(@NotNull String fileBody, @NotNull String snippet, int count) {
+        return beforeFirst(fileBody, snippet, count) + snippet.length();
+    }
+
+    /**
+     * Returns the index immediately <i>before</i> the {@code count} occurrence of {@code snippet} in {@code fileBody}
+     * searching from the end.
+     *
+     * @param fileBody the file body
+     * @param snippet  the search snippet
+     * @param count    the occurrence count
+     * @return the index immediately before the last occurrence; fails fast if not found
+     */
+    protected static int beforeLast(@NotNull String fileBody, @NotNull String snippet, int count) {
+        int fromIndex = fileBody.length() - 1;
+        for (int i = 0; i < count; i++) {
+            int index = fileBody.lastIndexOf(snippet, fromIndex);
+            assertFalse("Failed to find last occurrence " + (i + 1) + " of '" + snippet + "'.", index == -1);
+            if (count == (i + 1)) {
+                return index;
+            } else {
+                fromIndex = index - 1;
+                if (fromIndex == 0) {
+                    fail("Failed to find occurrence " + (i + 1) + " of '" + snippet + "'.");
+                }
+            }
+        }
+        return fromIndex;
+    }
+
+    /**
+     * Returns the index immediately <i>after</i> the {@code count} occurrence of {@code snippet} in {@code fileBody}
+     * searching from the end.
+     *
+     * @param fileBody the file body
+     * @param snippet  the search snippet
+     * @param count    the occurrence count
+     * @return the index immediately after the last occurrence; fails fast if not found
+     */
+    protected static int afterLast(@NotNull String fileBody, @NotNull String snippet, int count) {
+        return beforeLast(fileBody, snippet, count) + snippet.length();
+    }
 }