Add string literal parsing with escapes and related tests

2026-09-09 07:56:06 +02:00 · 2026-03-04 16:21:49 +01:00
parent 7f58fb4aaf
commit 86819900a0
3 changed files with 152 additions and 0 deletions
@@ -0,0 +1,71 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+using System.Collections.Generic;
+
+namespace YesNt.Interpreter.Tests;
+
+[TestClass]
+public class StringLiteralStatementsTests
+{
+    [TestMethod]
+    public void StringLiteralWithSpacesWorksTest()
+    {
+        List<string> lines =
+        [
+            "var msg = \"hello world\"",
+            "${msg}"
+        ];
+
+        YesNtAssert.IsLastLineEqual(lines, "hello world");
+    }
+
+    [TestMethod]
+    public void StringLiteralEscapesWorkTest()
+    {
+        List<string> lines =
+        [
+            "var msg = \"a\\n\\t\\\"b\"",
+            "${msg}"
+        ];
+
+        YesNtAssert.IsLastLineEqual(lines, "a\n\t\"b");
+    }
+
+    [TestMethod]
+    public void StringLiteralPreventsVariableInterpolationTest()
+    {
+        List<string> lines =
+        [
+            "var x = hidden",
+            "print_line \"${x}\""
+        ];
+
+        YesNtAssert.ContainsDebugOutput(lines, "${x}");
+    }
+
+    [TestMethod]
+    public void StringLiteralWorksWithListAddTest()
+    {
+        List<string> lines =
+        [
+            "list items new",
+            "list items add \"hello world\"",
+            "list items get 0",
+            "var result = %out",
+            "${result}"
+        ];
+
+        YesNtAssert.IsLastLineEqual(lines, "hello world");
+    }
+
+    [TestMethod]
+    public void UnterminatedStringLiteralFailsTest()
+    {
+        List<string> lines =
+        [
+            "var msg = \"hello"
+        ];
+
+        YesNtAssert.ContainsTerminationMessage(lines, "Invalid string literal");
+    }
+}