diff --git a/.changes/unreleased/Under the Hood-20230110-145648.yaml b/.changes/unreleased/Under the Hood-20230110-145648.yaml
new file mode 100644
index 00000000000..9a21f1da645
--- /dev/null
+++ b/.changes/unreleased/Under the Hood-20230110-145648.yaml	
@@ -0,0 +1,6 @@
+kind: Under the Hood
+body: Check length of escaped strings in the adapter test
+time: 2023-01-10T14:56:48.044198-07:00
+custom:
+  Author: dbeatty10
+  Issue: "6566"
diff --git a/tests/adapter/dbt/tests/adapter/utils/fixture_escape_single_quotes.py b/tests/adapter/dbt/tests/adapter/utils/fixture_escape_single_quotes.py
index d7e7148b886..aeaaaa44193 100644
--- a/tests/adapter/dbt/tests/adapter/utils/fixture_escape_single_quotes.py
+++ b/tests/adapter/dbt/tests/adapter/utils/fixture_escape_single_quotes.py
@@ -1,15 +1,37 @@
 # escape_single_quotes
 
 models__test_escape_single_quotes_quote_sql = """
-select '{{ escape_single_quotes("they're") }}' as actual, 'they''re' as expected union all
-select '{{ escape_single_quotes("they are") }}' as actual, 'they are' as expected
+select
+  '{{ escape_single_quotes("they're") }}' as actual,
+  'they''re' as expected,
+  {{ length(string_literal(escape_single_quotes("they're"))) }} as actual_length,
+  7 as expected_length
+
+union all
+
+select
+  '{{ escape_single_quotes("they are") }}' as actual,
+  'they are' as expected,
+  {{ length(string_literal(escape_single_quotes("they are"))) }} as actual_length,
+  8 as expected_length
 """
 
 
 # The expected literal is 'they\'re'. The second backslash is to escape it from Python.
 models__test_escape_single_quotes_backslash_sql = """
-select '{{ escape_single_quotes("they're") }}' as actual, 'they\\'re' as expected union all
-select '{{ escape_single_quotes("they are") }}' as actual, 'they are' as expected
+select
+  '{{ escape_single_quotes("they're") }}' as actual,
+  'they\\'re' as expected,
+  {{ length(string_literal(escape_single_quotes("they're"))) }} as actual_length,
+  7 as expected_length
+
+union all
+
+select
+  '{{ escape_single_quotes("they are") }}' as actual,
+  'they are' as expected,
+  {{ length(string_literal(escape_single_quotes("they are"))) }} as actual_length,
+  8 as expected_length
 """
 
 
@@ -21,4 +43,7 @@
       - assert_equal:
           actual: actual
           expected: expected
+      - assert_equal:
+          actual: actual_length
+          expected: expected_length
 """