Add CI badge in README.md

Another one.

.github/workflows/main.yml

@@ -0,0 +1,43 @@
+# This is a basic workflow to help you get started with Actions
+
+name: Testing
+
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the master branch
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+    - uses: actions/checkout@v2
+
+    - name: Install Python 3
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+    
+    - name: Setup ANTLR 4 tool
+      uses: NiccoMlt/setup-antlr4@v0.0.5
+    
+    # Runs a set of commands using the runners shell
+    - name: Build ANTLR lexer and parser
+      run: |
+        $JAVA_EXEC -jar $Antlr4ToolPath -Xexact-output-dir -o jasminesnake/lex -package lex -Dlanguage=Python3 -listener grammars/*.g4
+        
+    - name: Install deps from pip
+      run: |
+        python -m pip install --upgrade -rrequirements-dev.txt
+        
+    - name: Run Tox
+      run: tox

README.md

@@ -3,6 +3,7 @@ Another JavaScript interpreter written on Python 3.
 
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 [![SemVer: 2.0.0](https://img.shields.io/badge/SemVer-2.0.0-F8DE7E?labelColor=23261D)](https://semver.org/spec/v2.0.0.html)
+![Testing status](https://github.com/t1meshift/js/workflows/Testing/badge.svg)
 
 ## Requirements
 
@@ -12,7 +13,6 @@ Another JavaScript interpreter written on Python 3.
 To run tests:
 
 - pytest
-- Tox
 
 You can get ANTLR [here](https://www.antlr.org/), other dependencies could be installed with pip:
 ```bash
@@ -26,6 +26,12 @@ antlr4 -Xexact-output-dir -o jasminesnake/lex -package lex -Dlanguage=Python3 -l
 python -m jasminesnake
 ```
 
+# Testing
+```bash
+# Running with -s is optional
+python -m pytest -s
+```
+
 ## Credits
 
 ESTree specification:

jasminesnake/__main__.py

@@ -20,6 +20,9 @@ def create_argument_parser():
     )
 
     _arg_parser.add_argument("--snake", action="store_true", help="print a snake")
+    _arg_parser.add_argument(
+        "--ast", choices=["full", "short", "none"], default="none", help="print AST"
+    )
     _arg_parser.add_argument(
         "--verbose",
         "-v",
@@ -72,9 +75,12 @@ def main():
         tree = stream.parse()
 
         ast_tree = from_parse_tree(tree)
-        ascii_ast = to_ascii_tree(ast_tree)
 
-        logging.info("Got an AST!\n%s", ascii_ast)
+        logging.info("Got an AST!\n")
+        if args.ast != "none":
+            ascii_ast = to_ascii_tree(ast_tree, ast_format=args.ast)
+            print(ascii_ast)
+
         # TODO: run logic
         sys.exit(0)
 

jasminesnake/ast/__init__.py

@@ -29,10 +29,13 @@ def to_ascii_tree(
     node: Union[nodes.Position, nodes.SourceLocation, nodes.Node],
     name_prefix: str = "",
     nesting_lvl: int = 0,
+    ast_format: str = "full",
 ):
     if nesting_lvl < 0:
         raise ValueError("Nesting level can't be below 0")
 
+    NODE_BLACKLIST = ["loc", "type"] if ast_format == "short" else []
+
     FORK = "+"
     VERTICAL = "|"
     HORIZONTAL = "-"
@@ -40,25 +43,30 @@ def to_ascii_tree(
     SUBENTRY_PREFIX = f"{FORK}{HORIZONTAL}{HORIZONTAL} "
     NESTED_PREFIX = f"{VERTICAL}   "
 
-    value = str(node)
+    value = str(node) if not isinstance(node, list) else ""
     children = None
 
     if isinstance(node, Enum):
         value = str(node.value)
 
     if isinstance(node, list):
-        value = ""
         children = [(index, val) for index, val in enumerate(node)]
 
     if hasattr(node, "fields"):
         children = [(k, node.fields[k]) for k in node.fields.keys()]
 
     result = f"{NESTED_PREFIX * (nesting_lvl - 1)}{SUBENTRY_PREFIX * (nesting_lvl > 0)}"
-    result += f"{name_prefix}{value}\n"
+    result += f"{name_prefix + ' '*(value!='' and name_prefix!='')}{value}\n"
 
     if children is not None:
         for (child_name, child_value) in children:
-            result += to_ascii_tree(child_value, f"{child_name}: ", nesting_lvl + 1)
+            if child_name not in NODE_BLACKLIST:
+                result += to_ascii_tree(
+                    child_value,
+                    f"{child_name}:",
+                    nesting_lvl + 1,
+                    ast_format=ast_format,
+                )
 
         # result += "\n"
 

jasminesnake/ast/parse_tree_listeners.py

@@ -41,6 +41,36 @@ class NodeListener(JSBaseListener):
         pass
 
 
+class AssignmentOperatorListener(JSBaseListener):
+    _op: nodes.AssignmentOperator
+
+    @property
+    def oper(self):
+        return self._op
+
+    def enterAssignmentOperator(self, ctx: JavaScriptParser.AssignmentOperatorContext):
+        ops = nodes.AssignmentOperator
+        ops_list = [
+            (ctx.MultiplyAssign(), ops.MUL),
+            (ctx.DivideAssign(), ops.DIV),
+            (ctx.ModulusAssign(), ops.MOD),
+            (ctx.PlusAssign(), ops.ADD),
+            (ctx.MinusAssign(), ops.SUB),
+            (ctx.LeftShiftArithmeticAssign(), ops.SHL),
+            (ctx.RightShiftArithmeticAssign(), ops.SHR),
+            (ctx.RightShiftLogicalAssign(), ops.SHR_LOGIC),
+            (ctx.BitAndAssign(), ops.AND),
+            (ctx.BitXorAssign(), ops.XOR),
+            (ctx.BitOrAssign(), ops.OR),
+            (ctx.PowerAssign(), ops.POW),
+        ]
+
+        for (op_cond, op) in ops_list:
+            if op_cond is not None:
+                self._op = op
+                break
+
+
 class LiteralListener(JSBaseListener):
     _literal: nodes.Literal
 
@@ -56,7 +86,8 @@ class LiteralListener(JSBaseListener):
             value = ctx.BooleanLiteral().getText() == "true"
             self._literal = nodes.BooleanLiteral(loc, value)
         elif ctx.StringLiteral() is not None:
-            self._literal = nodes.StringLiteral(loc, ctx.StringLiteral().getText())
+            value = ctx.StringLiteral().getText()[1:-1]  # Strip quotes
+            self._literal = nodes.StringLiteral(loc, value)
         else:
             ctx.getChild(0).enterRule(self)
 
@@ -70,6 +101,34 @@ class LiteralListener(JSBaseListener):
         raise NotImplementedError("Bigint literals")
 
 
+class ArrayLiteralExpandListener(JSBaseListener):
+    _exprs: List[Union[nodes.Expression, nodes.SpreadElement]]
+
+    @property
+    def expressions(self):
+        return self._exprs
+
+    def enterArrayLiteral(self, ctx: JavaScriptParser.ArrayLiteralContext):
+        logging.debug("Entered section ArrayLiteral")
+        ctx.elementList().enterRule(self)
+
+    def enterElementList(self, ctx: JavaScriptParser.ElementListContext):
+        logging.debug("Entered section ElementList")
+        self._exprs = []
+        for expr in ctx.arrayElement():
+            expr.enterRule(self)
+
+    def enterArrayElement(self, ctx: JavaScriptParser.ArrayElementContext):
+        logging.debug("Entered section ArrayElement")
+        expr_listener = ExpressionListener()
+        ctx.singleExpression().enterRule(expr_listener)
+        if ctx.Ellipsis() is not None:
+            loc = _get_source_location(ctx, None)
+            self._exprs.append(nodes.SpreadElement(loc, expr_listener.expression))
+        else:
+            self._exprs.append(expr_listener.expression)
+
+
 class ExpressionListener(JSBaseListener):
     _expr: nodes.Expression
 
@@ -81,6 +140,7 @@ class ExpressionListener(JSBaseListener):
         self, ctx: JavaScriptParser.ExpressionStatementContext
     ):
         ctx.expressionSequence().enterRule(self)
+        raise NotImplementedError("ExpressionStatement")
 
     def enterExpressionSequence(self, ctx: JavaScriptParser.ExpressionSequenceContext):
         expressions: List[nodes.Expression] = []
@@ -95,13 +155,365 @@ class ExpressionListener(JSBaseListener):
         self, ctx: JavaScriptParser.ParenthesizedExpressionContext
     ):
         ctx.expressionSequence().enterRule(self)
+        raise NotImplementedError("ParenthesizedExpression")
 
     def enterLiteralExpression(self, ctx: JavaScriptParser.LiteralExpressionContext):
         literal_listener = LiteralListener()
         ctx.literal().enterRule(literal_listener)
         self._expr = literal_listener.literal
 
-    # TODO single expression
+    def enterFunctionExpression(self, ctx: JavaScriptParser.FunctionExpressionContext):
+        logging.debug("Entered section FunctionExpression")
+        raise NotImplementedError("FunctionExpression")  # TODO
+
+    def enterClassExpression(self, ctx: JavaScriptParser.ClassExpressionContext):
+        logging.debug("Entered section ClassExpression")
+        raise NotImplementedError("ClassExpression")  # TODO
+
+    def enterMemberIndexExpression(
+        self, ctx: JavaScriptParser.MemberIndexExpressionContext
+    ):
+        logging.debug("Entered section MemberIndexExpression")
+        raise NotImplementedError("MemberIndexExpression")  # TODO
+
+    def enterMemberDotExpression(
+        self, ctx: JavaScriptParser.MemberDotExpressionContext
+    ):
+        logging.debug("Entered section MemberDotExpression")
+        raise NotImplementedError("MemberDotExpression")  # TODO
+
+    def enterArgumentsExpression(
+        self, ctx: JavaScriptParser.ArgumentsExpressionContext
+    ):
+        logging.debug("Entered section ArgumentsExpression")
+        raise NotImplementedError("ArgumentsExpression")  # TODO
+
+    def enterNewExpression(self, ctx: JavaScriptParser.NewExpressionContext):
+        logging.debug("Entered section NewExpression")
+        raise NotImplementedError("NewExpression")  # TODO
+
+    def enterMetaExpression(self, ctx: JavaScriptParser.MetaExpressionContext):
+        logging.debug("Entered section MetaExpression")
+        raise NotImplementedError("MetaExpression")  # TODO
+
+    def enterPostIncrementExpression(
+        self, ctx: JavaScriptParser.PostIncrementExpressionContext
+    ):
+        logging.debug("Entered section PostIncrementExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.PostIncrementExpression(loc, arg_lst.expression)
+
+    def enterPostDecreaseExpression(
+        self, ctx: JavaScriptParser.PostDecreaseExpressionContext
+    ):
+        logging.debug("Entered section PostDecreaseExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.PostDecrementExpression(loc, arg_lst.expression)
+
+    def enterDeleteExpression(self, ctx: JavaScriptParser.DeleteExpressionContext):
+        logging.debug("Entered section DeleteExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.DeleteExpression(loc, arg_lst.expression)
+
+    def enterVoidExpression(self, ctx: JavaScriptParser.VoidExpressionContext):
+        logging.debug("Entered section VoidExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.VoidExpression(loc, arg_lst.expression)
+
+    def enterTypeofExpression(self, ctx: JavaScriptParser.TypeofExpressionContext):
+        logging.debug("Entered section TypeofExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.TypeofExpression(loc, arg_lst.expression)
+
+    def enterPreIncrementExpression(
+        self, ctx: JavaScriptParser.PreIncrementExpressionContext
+    ):
+        logging.debug("Entered section PreIncrementExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.PreIncrementExpression(loc, arg_lst.expression)
+
+    def enterPreDecreaseExpression(
+        self, ctx: JavaScriptParser.PreDecreaseExpressionContext
+    ):
+        logging.debug("Entered section PreDecreaseExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.PreDecrementExpression(loc, arg_lst.expression)
+
+    def enterUnaryPlusExpression(
+        self, ctx: JavaScriptParser.UnaryPlusExpressionContext
+    ):
+        logging.debug("Entered section UnaryPlusExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.UnaryPlusExpression(loc, arg_lst.expression)
+
+    def enterUnaryMinusExpression(
+        self, ctx: JavaScriptParser.UnaryMinusExpressionContext
+    ):
+        logging.debug("Entered section UnaryMinusExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.UnaryMinusExpression(loc, arg_lst.expression)
+
+    def enterBitNotExpression(self, ctx: JavaScriptParser.BitNotExpressionContext):
+        logging.debug("Entered section BitNotExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.UnaryBitNotExpression(loc, arg_lst.expression)
+
+    def enterNotExpression(self, ctx: JavaScriptParser.NotExpressionContext):
+        logging.debug("Entered section NotExpression")
+        arg_lst = ExpressionListener()
+        ctx.singleExpression().enterRule(arg_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.UnaryLogicNotExpression(loc, arg_lst.expression)
+
+    def enterPowerExpression(self, ctx: JavaScriptParser.PowerExpressionContext):
+        logging.debug("Entered section PowerExpression")
+        arg_l_lst = ExpressionListener()
+        arg_r_lst = ExpressionListener()
+        ctx.singleExpression(0).enterRule(arg_l_lst)
+        ctx.singleExpression(1).enterRule(arg_r_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.PowBinaryExpression(
+            loc, arg_l_lst.expression, arg_r_lst.expression
+        )
+
+    def enterMultiplicativeExpression(
+        self, ctx: JavaScriptParser.MultiplicativeExpressionContext
+    ):
+        logging.debug("Entered section MultiplicativeExpression")
+
+        ops_list = [
+            (ctx.Multiply(), nodes.MulArithmeticExpression),
+            (ctx.Divide(), nodes.DivArithmeticExpression),
+            (ctx.Modulus(), nodes.ModArithmeticExpression),
+        ]
+
+        arg_l_lst = ExpressionListener()
+        arg_r_lst = ExpressionListener()
+        ctx.singleExpression(0).enterRule(arg_l_lst)
+        ctx.singleExpression(1).enterRule(arg_r_lst)
+
+        loc = _get_source_location(ctx, None)
+
+        for (op_cond, op) in ops_list:
+            if op_cond is not None:
+                self._expr = op(loc, arg_l_lst.expression, arg_r_lst.expression)
+                break
+
+    def enterAdditiveExpression(self, ctx: JavaScriptParser.AdditiveExpressionContext):
+        logging.debug("Entered section AdditiveExpression")
+
+        ops_list = [
+            (ctx.Plus(), nodes.AddArithmeticExpression),
+            (ctx.Minus(), nodes.SubArithmeticExpression),
+        ]
+
+        arg_l_lst = ExpressionListener()
+        arg_r_lst = ExpressionListener()
+        ctx.singleExpression(0).enterRule(arg_l_lst)
+        ctx.singleExpression(1).enterRule(arg_r_lst)
+
+        loc = _get_source_location(ctx, None)
+
+        for (op_cond, op) in ops_list:
+            if op_cond is not None:
+                self._expr = op(loc, arg_l_lst.expression, arg_r_lst.expression)
+                break
+
+    def enterCoalesceExpression(self, ctx: JavaScriptParser.CoalesceExpressionContext):
+        logging.debug("Entered section CoalesceExpression")
+        raise NotImplementedError("CoalesceExpression")  # TODO
+
+    def enterBitShiftExpression(self, ctx: JavaScriptParser.BitShiftExpressionContext):
+        logging.debug("Entered section BitShiftExpression")
+
+        ops_list = [
+            (ctx.LeftShiftArithmetic(), nodes.LeftBitShiftExpression),
+            (ctx.RightShiftArithmetic(), nodes.RightBitShiftExpression),
+            (ctx.RightShiftLogical(), nodes.LogicRightBitShiftExpression),
+        ]
+
+        arg_l_lst = ExpressionListener()
+        arg_r_lst = ExpressionListener()
+        ctx.singleExpression(0).enterRule(arg_l_lst)
+        ctx.singleExpression(1).enterRule(arg_r_lst)
+
+        loc = _get_source_location(ctx, None)
+
+        for (op_cond, op) in ops_list:
+            if op_cond is not None:
+                self._expr = op(loc, arg_l_lst.expression, arg_r_lst.expression)
+                break
+
+    def enterRelationalExpression(
+        self, ctx: JavaScriptParser.RelationalExpressionContext
+    ):
+        logging.debug("Entered section RelationalExpression")
+
+        ops_list = [
+            (ctx.LessThan(), nodes.LowerThanRelationExpression),
+            (ctx.LessThanEquals(), nodes.LowerThanEqualRelationExpression),
+            (ctx.MoreThan(), nodes.GreaterThanRelationExpression),
+            (ctx.GreaterThanEquals(), nodes.GreaterThanEqualRelationExpression),
+        ]
+
+        arg_l_lst = ExpressionListener()
+        arg_r_lst = ExpressionListener()
+        ctx.singleExpression(0).enterRule(arg_l_lst)
+        ctx.singleExpression(1).enterRule(arg_r_lst)
+
+        loc = _get_source_location(ctx, None)
+
+        for (op_cond, op) in ops_list:
+            if op_cond is not None:
+                self._expr = op(loc, arg_l_lst.expression, arg_r_lst.expression)
+                break
+
+    def enterInExpression(self, ctx: JavaScriptParser.InExpressionContext):
+        logging.debug("Entered section InExpression")
+        raise NotImplementedError("InExpression")  # TODO
+
+    def enterEqualityExpression(self, ctx: JavaScriptParser.EqualityExpressionContext):
+        logging.debug("Entered section EqualityExpression")
+
+        ops_list = [
+            (ctx.Equals_(), nodes.EqualityExpression),
+            (ctx.NotEquals(), nodes.NotEqualityExpression),
+            (ctx.IdentityEquals(), nodes.IdentityEqualityExpression),
+            (ctx.IdentityNotEquals(), nodes.NotIdentityEqualityExpression),
+        ]
+
+        arg_l_lst = ExpressionListener()
+        arg_r_lst = ExpressionListener()
+        ctx.singleExpression(0).enterRule(arg_l_lst)
+        ctx.singleExpression(1).enterRule(arg_r_lst)
+
+        loc = _get_source_location(ctx, None)
+
+        for (op_cond, op) in ops_list:
+            if op_cond is not None:
+                self._expr = op(loc, arg_l_lst.expression, arg_r_lst.expression)
+                break
+
+    def enterBitAndExpression(self, ctx: JavaScriptParser.BitAndExpressionContext):
+        logging.debug("Entered section BitAndExpression")
+        raise NotImplementedError("BitAndExpression")  # TODO
+
+    def enterBitOrExpression(self, ctx: JavaScriptParser.BitOrExpressionContext):
+        logging.debug("Entered section BitOrExpression")
+        raise NotImplementedError("BitOrExpression")  # TODO
+
+    def enterBitXOrExpression(self, ctx: JavaScriptParser.BitXOrExpressionContext):
+        logging.debug("Entered section BitXOrExpression")
+        raise NotImplementedError("BitXOrExpression")  # TODO
+
+    def enterLogicalAndExpression(
+        self, ctx: JavaScriptParser.LogicalAndExpressionContext
+    ):
+        logging.debug("Entered section LogicalAndExpression")
+        raise NotImplementedError("LogicalAndExpression")  # TODO
+
+    def enterLogicalOrExpression(
+        self, ctx: JavaScriptParser.LogicalOrExpressionContext
+    ):
+        logging.debug("Entered section LogicalOrExpression")
+        raise NotImplementedError("LogicalOrExpression")  # TODO
+
+    def enterTernaryExpression(self, ctx: JavaScriptParser.TernaryExpressionContext):
+        logging.debug("Entered section TernaryExpression")
+        raise NotImplementedError("TernaryExpression")  # TODO
+
+    def enterAssignmentExpression(
+        self, ctx: JavaScriptParser.AssignmentExpressionContext
+    ):
+        logging.debug("Entered section AssignmentExpression")
+        left_lst = ExpressionListener()
+        right_lst = ExpressionListener()
+        ctx.singleExpression(0).enterRule(left_lst)
+        ctx.singleExpression(1).enterRule(right_lst)
+
+        loc = _get_source_location(ctx, None)
+        left = left_lst.expression
+        right = right_lst.expression
+        self._expr = nodes.AssignmentExpression(
+            loc, nodes.AssignmentOperator.ASSIGN, left, right
+        )
+
+    def enterAssignmentOperatorExpression(
+        self, ctx: JavaScriptParser.AssignmentOperatorExpressionContext
+    ):
+        logging.debug("Entered section AssignmentOperatorExpression")
+        left_lst = ExpressionListener()
+        right_lst = ExpressionListener()
+        op_lst = AssignmentOperatorListener()
+        ctx.singleExpression(0).enterRule(left_lst)
+        ctx.singleExpression(1).enterRule(right_lst)
+        ctx.assignmentOperator().enterRule(op_lst)
+
+        loc = _get_source_location(ctx, None)
+        left = left_lst.expression
+        right = right_lst.expression
+        op = op_lst.oper
+        self._expr = nodes.AssignmentExpression(loc, op, left, right)
+
+    def enterImportExpression(self, ctx: JavaScriptParser.ImportExpressionContext):
+        logging.debug("Entered section ImportExpression")
+        raise NotImplementedError("ImportExpression")  # TODO
+
+    def enterThisExpression(self, ctx: JavaScriptParser.ThisExpressionContext):
+        logging.debug("Entered section ThisExpression")
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.ThisExpression(loc)
+
+    def enterIdentifierExpression(
+        self, ctx: JavaScriptParser.IdentifierExpressionContext
+    ):
+        logging.debug("Entered section IdentifierExpression")
+        ctx.identifier().enterRule(self)
+
+    def enterIdentifier(self, ctx: JavaScriptParser.IdentifierContext):
+        logging.debug("Entered section Identifier")
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.Identifier(loc, ctx.getText())
+
+    def enterSuperExpression(self, ctx: JavaScriptParser.SuperExpressionContext):
+        logging.debug("Entered section SuperExpression")
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.Super(loc)
+
+    def enterArrayLiteralExpression(
+        self, ctx: JavaScriptParser.ArrayLiteralExpressionContext
+    ):
+        logging.debug("Entered section ArrayLiteralExpression")
+        arr_expand_lst = ArrayLiteralExpandListener()
+        ctx.arrayLiteral().enterRule(arr_expand_lst)
+        loc = _get_source_location(ctx, None)
+        self._expr = nodes.ArrayExpression(loc, arr_expand_lst.expressions)
+
+    def enterObjectLiteralExpression(
+        self, ctx: JavaScriptParser.ObjectLiteralExpressionContext
+    ):
+        logging.debug("Entered section ObjectLiteralExpression")
+        raise NotImplementedError("ObjectLiteralExpression")  # TODO
 
 
 class AssignableListener(NodeListener):
@@ -122,7 +534,15 @@ class AssignableListener(NodeListener):
 
     def enterArrayLiteral(self, ctx: JavaScriptParser.ArrayLiteralContext):
         logging.debug("Entered section ArrayLiteral")
-        raise NotImplementedError("ArrayLiteral assignment")  # TODO
+        loc = _get_source_location(ctx, None)
+
+        elems = []
+        if ctx.elementList() is not None:
+            arr_exp_lst = ArrayLiteralExpandListener()
+            ctx.elementList().enterRule(arr_exp_lst)
+            elems += arr_exp_lst.expressions
+
+        self._result = nodes.ArrayPattern(loc, elems)
 
     def enterObjectLiteral(self, ctx: JavaScriptParser.ObjectLiteralContext):
         logging.debug("Entered section ObjectLiteral")
@@ -293,7 +713,10 @@ class StatementListener(JSBaseListener):
 class SourceElementListener(JSBaseListener):
     """The proxy between Program and Statement."""
 
-    _elems: List[nodes.Statement] = []
+    _elems: List[nodes.Statement]
+
+    def __init__(self):
+        self._elems = []
 
     @property
     def source_elements(self) -> List[nodes.Statement]:
@@ -312,9 +735,12 @@ class SourceElementListener(JSBaseListener):
 class ASTListener(JSBaseListener):
     """AST listener."""
 
-    _program_node: Optional[nodes.Program] = None
+    _program_node: Optional[nodes.Program]
     _source_type: nodes.SourceTypeLiteral
 
+    def __init__(self):
+        self._program_node = None
+
     @property
     def program_node(self) -> nodes.Program:
         """The `Program` AST node generated after parse tree walking."""

tests/apr30_bug.js

@@ -1,2 +0,0 @@
-// Guess what? It should be parsable, but it's not (git rev 44d7e241)
-{let a = 15, b; {1_337.2_28, false, "String"}}

tests/bugs/r/unicode_escape.ast

@@ -0,0 +1,8 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: " while executing client event 1"
+|   |   |   |   |   +-- value:  while executing client event 1

tests/bugs/t/unicode_escape.js

@@ -0,0 +1,2 @@
+// The code below won't work since the grammar treat Unicode
+"\x20\x77hil\x65\x20exe\x63uting c\x6cient e\x76\145\x6et 1";

tests/expressions/r/assignments.ast

@@ -0,0 +1,120 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 1:0
+|   |   |   |   |   +-- operator: =
+|   |   |   |   |   +-- left: Identifier at 1:0
+|   |   |   |   |   |   +-- name: a
+|   |   |   |   |   +-- right: Literal at 1:4
+|   |   |   |   |   |   +-- value: 1.0
+|   +-- 1: ExpressionStatement at 2:0
+|   |   +-- expression: SequenceExpression at 2:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 2:0
+|   |   |   |   |   +-- operator: *=
+|   |   |   |   |   +-- left: Identifier at 2:0
+|   |   |   |   |   |   +-- name: q
+|   |   |   |   |   +-- right: Literal at 2:5
+|   |   |   |   |   |   +-- value: 2.0
+|   +-- 2: ExpressionStatement at 3:0
+|   |   +-- expression: SequenceExpression at 3:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 3:0
+|   |   |   |   |   +-- operator: /=
+|   |   |   |   |   +-- left: Identifier at 3:0
+|   |   |   |   |   |   +-- name: d
+|   |   |   |   |   +-- right: Literal at 3:5
+|   |   |   |   |   |   +-- value: 2.0
+|   +-- 3: ExpressionStatement at 4:0
+|   |   +-- expression: SequenceExpression at 4:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 4:0
+|   |   |   |   |   +-- operator: %=
+|   |   |   |   |   +-- left: Identifier at 4:0
+|   |   |   |   |   |   +-- name: w
+|   |   |   |   |   +-- right: Literal at 4:5
+|   |   |   |   |   |   +-- value: 15.0
+|   +-- 4: ExpressionStatement at 5:0
+|   |   +-- expression: SequenceExpression at 5:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 5:0
+|   |   |   |   |   +-- operator: +=
+|   |   |   |   |   +-- left: Identifier at 5:0
+|   |   |   |   |   |   +-- name: b
+|   |   |   |   |   +-- right: Literal at 5:5
+|   |   |   |   |   |   +-- value: 12.0
+|   +-- 5: ExpressionStatement at 6:0
+|   |   +-- expression: SequenceExpression at 6:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 6:0
+|   |   |   |   |   +-- operator: -=
+|   |   |   |   |   +-- left: Identifier at 6:0
+|   |   |   |   |   |   +-- name: c
+|   |   |   |   |   +-- right: Literal at 6:5
+|   |   |   |   |   |   +-- value: 14.0
+|   +-- 6: ExpressionStatement at 7:0
+|   |   +-- expression: SequenceExpression at 7:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 7:0
+|   |   |   |   |   +-- operator: <<=
+|   |   |   |   |   +-- left: Identifier at 7:0
+|   |   |   |   |   |   +-- name: a
+|   |   |   |   |   +-- right: Literal at 7:6
+|   |   |   |   |   |   +-- value: 1.0
+|   +-- 7: ExpressionStatement at 8:0
+|   |   +-- expression: SequenceExpression at 8:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 8:0
+|   |   |   |   |   +-- operator: >>=
+|   |   |   |   |   +-- left: Identifier at 8:0
+|   |   |   |   |   |   +-- name: b
+|   |   |   |   |   +-- right: Literal at 8:6
+|   |   |   |   |   |   +-- value: 2.0
+|   +-- 8: ExpressionStatement at 9:0
+|   |   +-- expression: SequenceExpression at 9:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 9:0
+|   |   |   |   |   +-- operator: >>>=
+|   |   |   |   |   +-- left: Identifier at 9:0
+|   |   |   |   |   |   +-- name: z
+|   |   |   |   |   +-- right: Literal at 9:7
+|   |   |   |   |   |   +-- value: 2.0
+|   +-- 9: ExpressionStatement at 10:0
+|   |   +-- expression: SequenceExpression at 10:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 10:0
+|   |   |   |   |   +-- operator: &=
+|   |   |   |   |   +-- left: Identifier at 10:0
+|   |   |   |   |   |   +-- name: v
+|   |   |   |   |   +-- right: Literal at 10:5
+|   |   |   |   |   |   +-- value: 1.0
+|   +-- 10: ExpressionStatement at 11:0
+|   |   +-- expression: SequenceExpression at 11:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 11:0
+|   |   |   |   |   +-- operator: ^=
+|   |   |   |   |   +-- left: Identifier at 11:0
+|   |   |   |   |   |   +-- name: cc
+|   |   |   |   |   +-- right: Identifier at 11:6
+|   |   |   |   |   |   +-- name: cc
+|   +-- 11: ExpressionStatement at 12:0
+|   |   +-- expression: SequenceExpression at 12:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 12:0
+|   |   |   |   |   +-- operator: |=
+|   |   |   |   |   +-- left: Identifier at 12:0
+|   |   |   |   |   |   +-- name: vv
+|   |   |   |   |   +-- right: Identifier at 12:5
+|   |   |   |   |   |   +-- name: a
+|   +-- 12: ExpressionStatement at 13:0
+|   |   +-- expression: SequenceExpression at 13:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: AssignmentExpression at 13:0
+|   |   |   |   |   +-- operator: **=
+|   |   |   |   |   +-- left: Identifier at 13:0
+|   |   |   |   |   |   +-- name: x
+|   |   |   |   |   +-- right: Literal at 13:6
+|   |   |   |   |   |   +-- value: 2.0

tests/expressions/r/binary_ops.ast

@@ -0,0 +1,42 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: BinaryExpression at 1:0
+|   |   |   |   |   +-- operator: +
+|   |   |   |   |   +-- left: Literal at 1:0
+|   |   |   |   |   |   +-- value: 2.0
+|   |   |   |   |   +-- right: BinaryExpression at 1:2
+|   |   |   |   |   |   +-- operator: *
+|   |   |   |   |   |   +-- left: Literal at 1:2
+|   |   |   |   |   |   |   +-- value: 2.0
+|   |   |   |   |   |   +-- right: Literal at 1:4
+|   |   |   |   |   |   |   +-- value: 2.0
+|   +-- 1: ExpressionStatement at 2:0
+|   |   +-- expression: SequenceExpression at 2:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: BinaryExpression at 2:0
+|   |   |   |   |   +-- operator: ==
+|   |   |   |   |   +-- left: BinaryExpression at 2:0
+|   |   |   |   |   |   +-- operator: +
+|   |   |   |   |   |   +-- left: Literal at 2:0
+|   |   |   |   |   |   |   +-- value: 2.0
+|   |   |   |   |   |   +-- right: Literal at 2:6
+|   |   |   |   |   |   |   +-- value: 2.0
+|   |   |   |   |   +-- right: Literal at 2:11
+|   |   |   |   |   |   +-- value: 5.0
+|   +-- 2: ExpressionStatement at 3:0
+|   |   +-- expression: SequenceExpression at 3:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: BinaryExpression at 3:0
+|   |   |   |   |   +-- operator: !==
+|   |   |   |   |   +-- left: BinaryExpression at 3:0
+|   |   |   |   |   |   +-- operator: /
+|   |   |   |   |   |   +-- left: Literal at 3:0
+|   |   |   |   |   |   |   +-- value: 1.0
+|   |   |   |   |   |   +-- right: Literal at 3:2
+|   |   |   |   |   |   |   +-- value: 0.0
+|   |   |   |   |   +-- right: Identifier at 3:8
+|   |   |   |   |   |   +-- name: infty

tests/expressions/r/empty_expr.ast

@@ -0,0 +1,7 @@
+Program at 1:1
++-- sourceType: script
++-- body:
+|   +-- 0: EmptyStatement at 1:1
+|   +-- 1: EmptyStatement at 2:0
+|   +-- 2: EmptyStatement at 2:2
+|   +-- 3: EmptyStatement at 3:1

tests/expressions/r/inc_dec.ast

@@ -0,0 +1,32 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: UpdateExpression at 1:0
+|   |   |   |   |   +-- operator: ++
+|   |   |   |   |   +-- argument: Identifier at 1:2
+|   |   |   |   |   |   +-- name: a
+|   |   |   |   |   +-- prefix: True
+|   +-- 1: ExpressionStatement at 1:5
+|   |   +-- expression: SequenceExpression at 1:5
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: UpdateExpression at 1:5
+|   |   |   |   |   +-- operator: ++
+|   |   |   |   |   +-- argument: Identifier at 1:5
+|   |   |   |   |   |   +-- name: b
+|   |   |   |   |   +-- prefix: False
+|   +-- 2: ExpressionStatement at 2:0
+|   |   +-- expression: SequenceExpression at 2:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: UpdateExpression at 2:0
+|   |   |   |   |   +-- operator: --
+|   |   |   |   |   +-- argument: Identifier at 2:0
+|   |   |   |   |   |   +-- name: a
+|   |   |   |   |   +-- prefix: False
+|   |   |   |   +-- 1: UpdateExpression at 2:5
+|   |   |   |   |   +-- operator: --
+|   |   |   |   |   +-- argument: Identifier at 2:7
+|   |   |   |   |   |   +-- name: b
+|   |   |   |   |   +-- prefix: True

tests/expressions/t/assignments.js

@@ -0,0 +1,13 @@
+a = 1;
+q *= 2;
+d /= 2;
+w %= 15;
+b += 12;
+c -= 14;
+a <<= 1;
+b >>= 2;
+z >>>= 2;
+v &= 1;
+cc ^= cc;
+vv|= a;
+x **= 2;

tests/expressions/t/binary_ops.js

@@ -0,0 +1,3 @@
+2+2*2;
+2 +   2 == 5;
+1/0 !== infty;

tests/expressions/t/empty_expr.js

@@ -0,0 +1,3 @@
+ ;
+; ;
+ ;

tests/expressions/t/inc_dec.js

@@ -0,0 +1,2 @@
+++a; b++;
+a--, --b;

tests/js_test_suite.py

@@ -0,0 +1,103 @@
+from typing import List, Optional
+import os
+from pathlib import Path
+import difflib
+from jasminesnake.js_stream import JSStringStream
+import jasminesnake.ast as js_ast
+
+
+class JSTest:
+    _test_name: str
+    _test_file: str
+    _result_file: Optional[str]
+
+    @property
+    def name(self):
+        return self._test_name
+
+    def __init__(self, name: str, test_file: str, result_file: Optional[str]):
+        self._test_name = name
+        self._test_file = test_file
+        self._result_file = result_file
+
+    def run(self, must_fail: bool = False):
+        payload = Path(self._test_file).read_text()
+        jst = JSStringStream(payload)
+        tree = jst.parse()
+        ast_tree = None
+        try:
+            ast_tree = js_ast.from_parse_tree(tree)
+        except NotImplementedError as e:
+            print("Seems like some nodes are not implemented :^)")
+            print("Error message: ")
+            if hasattr(e, "message"):
+                print(e.message)
+            else:
+                print(e)
+
+            return must_fail
+
+        expected = None
+        if self._result_file is not None:
+            expected = Path(self._result_file).read_text()
+
+        got = js_ast.to_ascii_tree(ast_tree, ast_format="short")
+
+        del jst
+        del tree
+        del ast_tree
+
+        if expected is not None:
+            if expected == got:
+                print("Test {} OK...".format(self._test_name))
+            else:
+                print(
+                    "Error in test `{}':\nExpected:\n```{}```\nGot:\n```{}```".format(
+                        self._test_name, expected, got
+                    )
+                )
+                # for i, s in enumerate(difflib.ndiff(expected, got)):
+                #     if s[0] != " ":
+                #         print(s[0], ord(s[-1]), "at", i)
+
+                return False
+        else:
+            print("Test {} has no result file!\nGot:\n{}".format(self._test_name, got))
+            return False
+
+        return True
+
+
+class JSTestCollection:
+    tests: List[JSTest]
+
+    def __init__(self, module_path: str):
+        self.tests = []
+        basedir = os.path.abspath(module_path)
+        tests_dir = os.path.join(basedir, "t")
+        results_dir = os.path.join(basedir, "r")
+
+        # Collect tests
+        test_files = [
+            os.path.join(tests_dir, f)
+            for f in os.listdir(tests_dir)
+            if os.path.isfile(os.path.join(tests_dir, f))
+        ]
+        test_names = [
+            os.path.splitext(os.path.basename(path))[0] for path in test_files
+        ]
+
+        for (test_name, test_file) in zip(test_names, test_files):
+            result_file = os.path.join(results_dir, test_name) + ".ast"
+            print(test_name, test_file, result_file)
+            if not os.path.isfile(result_file):
+                result_file = None
+
+            test_case = JSTest(test_name, test_file, result_file)
+            self.tests.append(test_case)
+
+    def run_all(self, must_fail: bool = False):
+        for test in self.tests:
+            if not test.run(must_fail):
+                return False
+        return True

tests/literals/r/0001.ast

@@ -0,0 +1,18 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: ArrayExpression at 1:0
+|   |   |   |   |   +-- elements:
+|   |   |   |   |   |   +-- 0: Literal at 1:1
+|   |   |   |   |   |   |   +-- value: 4.0
+|   |   |   |   |   |   +-- 1: Literal at 1:3
+|   |   |   |   |   |   |   +-- value: 4.0
+|   |   |   |   |   |   +-- 2: Literal at 1:5
+|   |   |   |   |   |   |   +-- value: 4.0
+|   |   |   |   |   |   +-- 3: Literal at 1:7
+|   |   |   |   |   |   |   +-- value: 4.0
+|   |   |   |   |   |   +-- 4: Literal at 1:9
+|   |   |   |   |   |   |   +-- value: 4.0

tests/literals/r/0002.ast

@@ -0,0 +1,13 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: ArrayExpression at 1:0
+|   |   |   |   |   +-- elements:
+|   |   |   |   |   |   +-- 0: SpreadElement at 1:1
+|   |   |   |   |   |   |   +-- argument: Identifier at 1:4
+|   |   |   |   |   |   |   |   +-- name: a
+|   |   |   |   |   |   +-- 1: Identifier at 1:7
+|   |   |   |   |   |   |   +-- name: b

tests/literals/r/0003.ast

@@ -0,0 +1,19 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: VariableDeclaration at 1:0
+|   |   +-- kind: let
+|   |   +-- declarations:
+|   |   |   +-- 0: VariableDeclarator at 1:4
+|   |   |   |   +-- id: ArrayPattern at 1:4
+|   |   |   |   |   +-- elements:
+|   |   |   |   |   |   +-- 0: Identifier at 1:5
+|   |   |   |   |   |   |   +-- name: a
+|   |   |   |   |   |   +-- 1: Identifier at 1:8
+|   |   |   |   |   |   |   +-- name: b
+|   |   |   |   +-- init: ArrayExpression at 1:13
+|   |   |   |   |   +-- elements:
+|   |   |   |   |   |   +-- 0: Literal at 1:14
+|   |   |   |   |   |   |   +-- value: 4.0
+|   |   |   |   |   |   +-- 1: Literal at 1:17
+|   |   |   |   |   |   |   +-- value: 4.0

tests/literals/r/0004.ast

@@ -0,0 +1,33 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: Literal at 1:0
+|   |   |   |   |   +-- value: 4444.0
+|   +-- 1: ExpressionStatement at 2:0
+|   |   +-- expression: SequenceExpression at 2:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: Literal at 2:0
+|   |   |   |   |   +-- value: 444444444.4444444
+|   +-- 2: ExpressionStatement at 3:0
+|   |   +-- expression: SequenceExpression at 3:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: Literal at 3:0
+|   |   |   |   |   +-- value: 4.0
+|   +-- 3: ExpressionStatement at 4:0
+|   |   +-- expression: SequenceExpression at 4:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: true
+|   |   |   |   |   +-- value: True
+|   +-- 4: ExpressionStatement at 5:0
+|   |   +-- expression: SequenceExpression at 5:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: false
+|   |   |   |   |   +-- value: False
+|   +-- 5: ExpressionStatement at 6:0
+|   |   +-- expression: SequenceExpression at 6:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: "String literal"
+|   |   |   |   |   +-- value: String literal

tests/literals/r/0005.ast

@@ -0,0 +1,8 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: ExpressionStatement at 1:0
+|   |   +-- expression: SequenceExpression at 1:0
+|   |   |   +-- expressions:
+|   |   |   |   +-- 0: "String literal, but single quoted"
+|   |   |   |   |   +-- value: String literal, but single quoted

tests/literals/t/0001.js

@@ -0,0 +1 @@
+[4,4,4,4,4,];

tests/literals/t/0002.js

@@ -0,0 +1 @@
+[...a, b];

tests/literals/t/0003.js

@@ -0,0 +1 @@
+let [a, b] = [4, 4];

tests/literals/t/0004.js

@@ -0,0 +1,6 @@
+4444;
+444_444_444.444_444_444;
+4;
+true;
+false;
+"String literal";

tests/literals/t/0005.js

@@ -0,0 +1 @@
+'String literal, but single quoted'

tests/statements/r/block_stmt.ast

@@ -0,0 +1,38 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: BlockStatement at 1:0
+|   |   +-- body:
+|   |   |   +-- 0: VariableDeclaration at 1:1
+|   |   |   |   +-- kind: let
+|   |   |   |   +-- declarations:
+|   |   |   |   |   +-- 0: VariableDeclarator at 1:5
+|   |   |   |   |   |   +-- id: Identifier at 1:5
+|   |   |   |   |   |   |   +-- name: a
+|   |   |   |   |   |   +-- init: Literal at 1:9
+|   |   |   |   |   |   |   +-- value: 15.0
+|   |   |   |   |   +-- 1: VariableDeclarator at 1:13
+|   |   |   |   |   |   +-- id: Identifier at 1:13
+|   |   |   |   |   |   |   +-- name: b
+|   |   |   |   |   |   +-- init: None
+|   |   |   +-- 1: BlockStatement at 1:16
+|   |   |   |   +-- body:
+|   |   |   |   |   +-- 0: ExpressionStatement at 1:17
+|   |   |   |   |   |   +-- expression: SequenceExpression at 1:17
+|   |   |   |   |   |   |   +-- expressions:
+|   |   |   |   |   |   |   |   +-- 0: Literal at 1:17
+|   |   |   |   |   |   |   |   |   +-- value: 1337.228
+|   |   |   |   |   |   |   |   +-- 1: false
+|   |   |   |   |   |   |   |   |   +-- value: False
+|   |   |   |   |   |   |   |   +-- 2: "String"
+|   |   |   |   |   |   |   |   |   +-- value: String
+|   |   |   +-- 2: EmptyStatement at 1:45
+|   |   |   +-- 3: BlockStatement at 1:47
+|   |   |   |   +-- body:
+|   |   |   |   |   +-- 0: VariableDeclaration at 1:48
+|   |   |   |   |   |   +-- kind: var
+|   |   |   |   |   |   +-- declarations:
+|   |   |   |   |   |   |   +-- 0: VariableDeclarator at 1:52
+|   |   |   |   |   |   |   |   +-- id: Identifier at 1:52
+|   |   |   |   |   |   |   |   |   +-- name: aaaaaaaaaaaaaa
+|   |   |   |   |   |   |   |   +-- init: None

tests/statements/r/variable_decl.ast

@@ -0,0 +1,65 @@
+Program at 1:0
++-- sourceType: script
++-- body:
+|   +-- 0: VariableDeclaration at 1:0
+|   |   +-- kind: let
+|   |   +-- declarations:
+|   |   |   +-- 0: VariableDeclarator at 1:4
+|   |   |   |   +-- id: Identifier at 1:4
+|   |   |   |   |   +-- name: a
+|   |   |   |   +-- init: None
+|   +-- 1: VariableDeclaration at 2:0
+|   |   +-- kind: var
+|   |   +-- declarations:
+|   |   |   +-- 0: VariableDeclarator at 2:4
+|   |   |   |   +-- id: Identifier at 2:4
+|   |   |   |   |   +-- name: b
+|   |   |   |   +-- init: None
+|   +-- 2: VariableDeclaration at 4:0
+|   |   +-- kind: let
+|   |   +-- declarations:
+|   |   |   +-- 0: VariableDeclarator at 4:4
+|   |   |   |   +-- id: Identifier at 4:4
+|   |   |   |   |   +-- name: zzz
+|   |   |   |   +-- init: Literal at 4:10
+|   |   |   |   |   +-- value: 0.0
+|   |   |   +-- 1: VariableDeclarator at 4:13
+|   |   |   |   +-- id: Identifier at 4:13
+|   |   |   |   |   +-- name: k
+|   |   |   |   +-- init: None
+|   +-- 3: VariableDeclaration at 5:0
+|   |   +-- kind: let
+|   |   +-- declarations:
+|   |   |   +-- 0: VariableDeclarator at 5:4
+|   |   |   |   +-- id: Identifier at 5:4
+|   |   |   |   |   +-- name: cc
+|   |   |   |   +-- init: None
+|   |   |   +-- 1: VariableDeclarator at 5:8
+|   |   |   |   +-- id: Identifier at 5:8
+|   |   |   |   |   +-- name: asa
+|   |   |   |   +-- init: None
+|   +-- 4: VariableDeclaration at 6:0
+|   |   +-- kind: let
+|   |   +-- declarations:
+|   |   |   +-- 0: VariableDeclarator at 6:4
+|   |   |   |   +-- id: Identifier at 6:4
+|   |   |   |   |   +-- name: cccccc
+|   |   |   |   +-- init: None
+|   |   |   +-- 1: VariableDeclarator at 6:12
+|   |   |   |   +-- id: Identifier at 6:12
+|   |   |   |   |   +-- name: asasa
+|   |   |   |   +-- init: Literal at 6:20
+|   |   |   |   |   +-- value: 0.0
+|   +-- 5: VariableDeclaration at 8:0
+|   |   +-- kind: var
+|   |   +-- declarations:
+|   |   |   +-- 0: VariableDeclarator at 8:4
+|   |   |   |   +-- id: Identifier at 8:4
+|   |   |   |   |   +-- name: x
+|   |   |   |   +-- init: Literal at 8:8
+|   |   |   |   |   +-- value: 0.0
+|   |   |   +-- 1: VariableDeclarator at 8:11
+|   |   |   |   +-- id: Identifier at 8:11
+|   |   |   |   |   +-- name: y
+|   |   |   |   +-- init: Literal at 8:15
+|   |   |   |   |   +-- value: 0.0

tests/statements/t/block_stmt.js

@@ -0,0 +1 @@
+{let a = 15, b; {1_337.2_28, false, "String"}; {var aaaaaaaaaaaaaa}}

tests/statements/t/variable_decl.js

@@ -0,0 +1,8 @@
+let a;
+var b;
+
+let zzz = 0, k;
+let cc, asa;
+let cccccc, asasa = 0;
+
+var x = 0, y = 0

tests/test.js

@@ -1,15 +0,0 @@
-// The code below won't work since the grammar treat Unicode
-//"\x20\x77hil\x65\x20exe\x63uting c\x6cient e\x76\145\x6et ";
-
-//{let a = 15, b}
-
-
-{{{let t = false, n = true}}}
-//++a15;
-var a, b=14;
-let c;
-;
-4444444444444444444444;
-//228,1444444444444;t,fnm
-//if (1) 0;
-//function f4444444(){}

tests/test_ast.py

@@ -0,0 +1,30 @@
+import os
+import pytest
+from js_test_suite import *
+
+BASE_PATH = os.path.dirname(os.path.abspath(__file__))
+
+
+class TestAST:
+    def test_literals(self):
+        tcl = JSTestCollection(os.path.join(BASE_PATH, "literals"))
+        assert tcl.run_all()
+
+    def test_statements(self):
+        tcs = JSTestCollection(os.path.join(BASE_PATH, "statements"))
+        assert tcs.run_all()
+
+    # @pytest.mark.skip(reason="Not yet implemented")
+    def test_expressions(self):
+        tce = JSTestCollection(os.path.join(BASE_PATH, "expressions"))
+        assert tce.run_all()
+
+    # @pytest.mark.xfail(reason="Not yet implemented features.")
+    def test_todos(self):
+        tcb = JSTestCollection(os.path.join(BASE_PATH, "todos"))
+        assert tcb.run_all(must_fail=True)
+
+    @pytest.mark.xfail(reason="Bugs.")
+    def test_bugs(self):
+        tcb = JSTestCollection(os.path.join(BASE_PATH, "bugs"))
+        assert tcb.run_all(must_fail=True)

tests/todos/t/conditions.js

@@ -0,0 +1 @@
+if (1) 0;

tests/todos/t/for_loops.js

@@ -0,0 +1,4 @@
+for (let a = 0; a < b; ++a) c++;
+for (;b > c; --b) {a = b/c}
+
+for (;;) {}

tests/todos/t/obj_literals.js

@@ -0,0 +1,4 @@
+// Object literals?
+let a = {a: 4, b: 4};
+let k = {"a444": 444, 'b555': 555};
+

tox.ini

@@ -1,10 +1,11 @@
-[pytest]
-envlist = py37,py38
+[tox]
+skipsdist = true
 
 [testenv]
-changedir = tests
+#changedir = tests
 deps =
+    -rrequirements.txt
     pytest
 commands =
     # Any commands go here
-    pytest --basetemp="{envtmpdir}" {posargs}
+    python -m pytest -s --basetemp="{envtmpdir}" {posargs}