add tests

test/models/entry_test.rb

@@ -1,7 +1,43 @@
 require "test_helper"
 
 class EntryTest < ActiveSupport::TestCase
-  # test "the truth" do
-  #   assert true
-  # end
+  test "should be valid with a category" do
+    entry = Entry.new(category: :word)
+    assert entry.valid?
+  end
+
+  test "should be invalid without a category" do
+    entry = Entry.new(category: nil)
+    assert_not entry.valid?
+  end
+
+  test "can be a word" do
+    entry = Entry.new(category: :word)
+    assert entry.word?
+  end
+
+  test "can be a phrase" do
+    entry = Entry.new(category: :phrase)
+    assert entry.phrase?
+  end
+
+  test "can be a proper_name" do
+    entry = Entry.new(category: :proper_name)
+    assert entry.proper_name?
+  end
+
+  test "can be a title" do
+    entry = Entry.new(category: :title)
+    assert entry.title?
+  end
+
+  test "can be a reference" do
+    entry = Entry.new(category: :reference)
+    assert entry.reference?
+  end
+
+  test "can be other" do
+    entry = Entry.new(category: :other)
+    assert entry.other?
+  end
 end