Day 21: Part 1

Signed-off-by: James Griffin <james@unsupervised.ca>

twentyone/day_twentyone_test.go

@@ -0,0 +1,40 @@
+package twentyone
+
+import "testing"
+
+func Test_loading_list(t *testing.T) {
+	l := list{}
+	err := l.load("sample.txt")
+	if err != nil {
+		t.Logf(err.Error())
+		t.FailNow()
+	}
+
+	foods := len(l.foods)
+	if foods != 4 {
+		t.Logf("Expected 4 foods, found %d", foods)
+		t.FailNow()
+	}
+
+	ingredients := len(l.possibleIngredientAllergens)
+	if ingredients != 7 {
+		t.Logf("Expected 7 ingredients, found %d", ingredients)
+		t.FailNow()
+	}
+}
+
+func Test_find_allergenfree(t *testing.T) {
+	l := list{}
+	err := l.load("sample.txt")
+	if err != nil {
+		t.Logf(err.Error())
+		t.FailNow()
+	}
+
+	l.isolateIngredientAllergens()
+	count, ingredients := l.countAllergenFreeAppearances()
+	if count != 5 {
+		t.Logf("Expected 5 allergen free ingredients, got %d %v", count, ingredients)
+		t.FailNow()
+	}
+}