diff --git a/.editorconfig b/.editorconfig
index 219985c2289..3f308c4ecac 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -13,7 +13,7 @@ insert_final_newline = true
 indent_style = space
 indent_size = 2
 
-[*.hbs]
+[*.{hbs,json}]
 insert_final_newline = false
 
 [*.{diff,md}]
diff --git a/tests/adapter-encapsulation/.editorconfig b/tests/adapter-encapsulation/.editorconfig
deleted file mode 100644
index 219985c2289..00000000000
--- a/tests/adapter-encapsulation/.editorconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-# EditorConfig helps developers define and maintain consistent
-# coding styles between different editors and IDEs
-# editorconfig.org
-
-root = true
-
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-
-[*.hbs]
-insert_final_newline = false
-
-[*.{diff,md}]
-trim_trailing_whitespace = false
diff --git a/tests/debug-encapsulation/.editorconfig b/tests/debug-encapsulation/.editorconfig
deleted file mode 100644
index 219985c2289..00000000000
--- a/tests/debug-encapsulation/.editorconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-# EditorConfig helps developers define and maintain consistent
-# coding styles between different editors and IDEs
-# editorconfig.org
-
-root = true
-
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-
-[*.hbs]
-insert_final_newline = false
-
-[*.{diff,md}]
-trim_trailing_whitespace = false
diff --git a/tests/fastboot/.editorconfig b/tests/fastboot/.editorconfig
deleted file mode 100644
index 219985c2289..00000000000
--- a/tests/fastboot/.editorconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-# EditorConfig helps developers define and maintain consistent
-# coding styles between different editors and IDEs
-# editorconfig.org
-
-root = true
-
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-
-[*.hbs]
-insert_final_newline = false
-
-[*.{diff,md}]
-trim_trailing_whitespace = false
diff --git a/tests/json-api-encapsulation/.editorconfig b/tests/json-api-encapsulation/.editorconfig
deleted file mode 100644
index 219985c2289..00000000000
--- a/tests/json-api-encapsulation/.editorconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-# EditorConfig helps developers define and maintain consistent
-# coding styles between different editors and IDEs
-# editorconfig.org
-
-root = true
-
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-
-[*.hbs]
-insert_final_newline = false
-
-[*.{diff,md}]
-trim_trailing_whitespace = false
diff --git a/tests/model-encapsulation/.editorconfig b/tests/model-encapsulation/.editorconfig
deleted file mode 100644
index 219985c2289..00000000000
--- a/tests/model-encapsulation/.editorconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-# EditorConfig helps developers define and maintain consistent
-# coding styles between different editors and IDEs
-# editorconfig.org
-
-root = true
-
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-
-[*.hbs]
-insert_final_newline = false
-
-[*.{diff,md}]
-trim_trailing_whitespace = false
diff --git a/tests/serializer-encapsulation/.editorconfig b/tests/serializer-encapsulation/.editorconfig
deleted file mode 100644
index 219985c2289..00000000000
--- a/tests/serializer-encapsulation/.editorconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-# EditorConfig helps developers define and maintain consistent
-# coding styles between different editors and IDEs
-# editorconfig.org
-
-root = true
-
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-
-[*.hbs]
-insert_final_newline = false
-
-[*.{diff,md}]
-trim_trailing_whitespace = false