From a4635fb95235ba4bf077bd59957da0626fc5ba72 Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbarenblat@gmail.com>
Date: Tue, 14 Dec 2021 12:34:06 -0500
Subject: EC, a terminal-based RPN calculator

---
 src/parser_driver_test.cc | 53 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 src/parser_driver_test.cc

(limited to 'src/parser_driver_test.cc')

diff --git a/src/parser_driver_test.cc b/src/parser_driver_test.cc
new file mode 100644
index 0000000..69803df
--- /dev/null
+++ b/src/parser_driver_test.cc
@@ -0,0 +1,53 @@
+// Copyright 2021 Benjamin Barenblat
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+#include "src/parser_driver.h"
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "src/language.h"
+#include "src/language_matchers.h"
+
+namespace ec {
+namespace {
+
+using ::testing::ElementsAre;
+using ::testing::IsEmpty;
+
+TEST(ParserDriverTest, LexerError) {
+  EXPECT_THROW(ParseFromString("!!!"), ParseError);
+}
+
+TEST(ParserDriverTest, EmptyProgram) {
+  EXPECT_THAT(ParseFromString(""), IsEmpty());
+}
+
+TEST(ParserDriverTest, ConvertsNumber) {
+  EXPECT_THAT(ParseFromString("12321"), ElementsAre(PointsToGroundTerm(12321)));
+}
+
+TEST(ParserDriverTest, ConvertsIdentifier) {
+  EXPECT_THAT(ParseFromString("dup"), ElementsAre(PointsToSymbolTerm("dup")));
+}
+
+TEST(ParserDriverTest, ParsesMultipleTerms) {
+  EXPECT_THAT(ParseFromString("2 2 + 4 /"),
+              ElementsAre(PointsToGroundTerm(2), PointsToGroundTerm(2),
+                          PointsToSymbolTerm("add"), PointsToGroundTerm(4),
+                          PointsToSymbolTerm("div")));
+}
+
+}  // namespace
+}  // namespace ec
-- 
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