1 files changed, 0 insertions, 68 deletions
diff --git a/tests/unit/grammar/test_helper_test.go b/tests/unit/grammar/test_helper_test.go
deleted file mode 100644
index 546d2c1..0000000
--- a/tests/unit/grammar/test_helper_test.go
+++ /dev/null
@@ -1,68 +0,0 @@
-package grammar
-
-import (
-	"testing"
-
-	"urubu/grammar/symbol"
-)
-
-type testSymbolGenerator func(text string) symbol.Symbol
-
-func newTestSymbolGenerator(t *testing.T, symTab *symbol.SymbolTableReader) testSymbolGenerator {
-	return func(text string) symbol.Symbol {
-		t.Helper()
-
-		sym, ok := symTab.ToSymbol(text)
-		if !ok {
-			t.Fatalf("symbol was not found: %v", text)
-		}
-		return sym
-	}
-}
-
-type testProductionGenerator func(lhs string, rhs ...string) *production
-
-func newTestProductionGenerator(t *testing.T, genSym testSymbolGenerator) testProductionGenerator {
-	return func(lhs string, rhs ...string) *production {
-		t.Helper()
-
-		rhsSym := []symbol.Symbol{}
-		for _, text := range rhs {
-			rhsSym = append(rhsSym, genSym(text))
-		}
-		prod, err := newProduction(genSym(lhs), rhsSym)
-		if err != nil {
-			t.Fatalf("failed to create a production: %v", err)
-		}
-
-		return prod
-	}
-}
-
-type testLR0ItemGenerator func(lhs string, dot int, rhs ...string) *lrItem
-
-func newTestLR0ItemGenerator(t *testing.T, genProd testProductionGenerator) testLR0ItemGenerator {
-	return func(lhs string, dot int, rhs ...string) *lrItem {
-		t.Helper()
-
-		prod := genProd(lhs, rhs...)
-		item, err := newLR0Item(prod, dot)
-		if err != nil {
-			t.Fatalf("failed to create a LR0 item: %v", err)
-		}
-
-		return item
-	}
-}
-
-func withLookAhead(item *lrItem, lookAhead ...symbol.Symbol) *lrItem {
-	if item.lookAhead.symbols == nil {
-		item.lookAhead.symbols = map[symbol.Symbol]struct{}{}
-	}
-
-	for _, a := range lookAhead {
-		item.lookAhead.symbols[a] = struct{}{}
-	}
-
-	return item
-}