It is PRINCIPLES - truths; not PRINCIPALS - people in charge of schools or racing teams.

By deleteing the dev database, recreating it from migrations and then preparing the test database; the foreign key contraints now work. Also the database tables are now uft8mb4 instead of lantin1.

May be an idea to do this every time there is a rails update until going live.

test/fixtures/cafs.yml

@@ -1,11 +1,11 @@
 # Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
-
-one:
-  company: one
-  name: MyString
-  description: MyText
-
-two:
-  company: two
-  name: MyString
-  description: MyText
+#
+# one:
+#   company: one
+#   name: MyString1
+#   description: MyText1
+#
+# two:
+#   company: two
+#   name: MyString2
+#   description: MyText2

test/fixtures/companies.yml

@@ -1,7 +1,7 @@
 # Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
 
-one:
-  name: HiddenAgendaLtd
-
-two:
-  name: CaudleMotorsports
+# one:
+#   name: HiddenAgendaLtd
+#
+# two:
+#   name: CaudleMotorsports

test/fixtures/principles.yml

@@ -1,11 +1,11 @@
 # Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
-
-one:
-  caf: one
-  name: MyString
-  description: MyText
-
-two:
-  caf: two
-  name: MyString
-  description: MyText
+#
+# one:
+#   caf: one
+#   name: MyString
+#   description: MyText
+#
+# two:
+#   caf: two
+#   name: MyString
+#   description: MyText

test/fixtures/subprincipalitems.yml

@@ -1,11 +0,0 @@
-# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
-
-one:
-  subprincipleitemgroup: one
-  description: MyText
-  affirmative: false
-
-two:
-  subprincipleitemgroup: two
-  description: MyText
-  affirmative: false

test/fixtures/subprincipleitemgroups.yml

@@ -1,9 +1,9 @@
 # Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
 
-one:
-  subprinciple: one
-  type: 
-
-two:
-  subprinciple: two
-  type: 
+# one:
+#   subprinciple: one
+#   type:
+#
+# two:
+#   subprinciple: two
+#   type:

test/fixtures/subprincipleitems.yml

@@ -0,0 +1,11 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+# one:
+#   subprincipleitemgroup: one
+#   description: MyText
+#   affirmative: false
+#
+# two:
+#   subprincipleitemgroup: two
+#   description: MyText
+#   affirmative: false

test/fixtures/subprinciples.yml

@@ -1,11 +1,11 @@
 # Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
-
-one:
-  principle: one
-  name: MyString
-  description: MyText
-
-two:
-  principle: two
-  name: MyString
-  description: MyText
+#
+# one:
+#   principle: one
+#   name: MyString
+#   description: MyText
+#
+# two:
+#   principle: two
+#   name: MyString
+#   description: MyText

test/fixtures/users.yml

@@ -4,8 +4,8 @@
 # model remove the "{}" from the fixture names and add the columns immediately
 # below each fixture, per the syntax in the comments below
 #
-one: {}
-# column: value
-#
-two: {}
-# column: value
+# one: {}
+# # column: value
+# #
+# two: {}
+# # column: value