JSImpl: Implemented ASTInterpreter::Visit for unary + and - (#87)

* JSImpl: Implemented ASTInterpreter::Visit for unary + and -

* JSImpl: Added tests for unary + and -

* JSImpl: fixed appveyor ubuntu build

Co-authored-by: Martin Dobrev <martindobrev0@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/JSImpl/test/ParserTests.cpp b/JSImpl/test/ParserTests.cpp
index 91534c5..8bdfb8c 100644
--- a/JSImpl/test/ParserTests.cpp
+++ b/JSImpl/test/ParserTests.cpp
@@ -103,7 +103,7 @@ TEST(Parser, VariableDeclarationMultiplicationOfVariables)
 
 TEST(Parser, Unary)
 {
-	IPLVector<Token> tokens = Tokenize("var a = 5; a++; var b = 6; --b;").tokens;
+	IPLVector<Token> tokens = Tokenize("var a = 5; a++; var b = 6; --b; var minusB = -b; var plusB = +b;").tokens;
 
 	auto expr = Parse(tokens);
 	std::ostringstream output;
@@ -113,6 +113,8 @@ TEST(Parser, Unary)
 	ASSERT_TRUE(i.HasVariable("b"));
 	ASSERT_DOUBLE_EQ(i.ModifyVariable("a"), 6.0);
 	ASSERT_DOUBLE_EQ(i.ModifyVariable("b"), 5.0);
+	ASSERT_DOUBLE_EQ(i.ModifyVariable("minusB"), -5.0);
+	ASSERT_DOUBLE_EQ(i.ModifyVariable("plusB"),  +5.0);
 }