module TestParser(tests) where

import Test.HUnit
import Parser.Lexer
import Parser.JavaParser
import Ast


testSingleEmptyClass = TestCase $
    assertEqual "expect single empty class hello" [Class "Hello" [] []] $
    parse [CLASS, IDENTIFIER "Hello", LBRACKET, RBRACKET]
testTwoEmptyClasses = TestCase $
    assertEqual "expect two empty classes" [Class "Class1" [] [], Class "Class2" [] []] $
    parse [CLASS,IDENTIFIER "Class1",LBRACKET,RBRACKET,CLASS,IDENTIFIER "Class2",LBRACKET,RBRACKET]
testBooleanField = TestCase $
    assertEqual "expect class with boolean field" [Class "WithBool" [] [VariableDeclaration "boolean" "value" Nothing]] $
    parse [CLASS,IDENTIFIER "WithBool",LBRACKET,BOOLEAN,IDENTIFIER "value",SEMICOLON,RBRACKET]
testIntField = TestCase $ 
    assertEqual "expect class with int field" [Class "WithInt" [] [VariableDeclaration "int" "value" Nothing]] $
    parse [CLASS,IDENTIFIER "WithInt",LBRACKET,INT,IDENTIFIER "value",SEMICOLON,RBRACKET]
testCustomTypeField = TestCase $
    assertEqual "expect class with foo field" [Class "WithFoo" [] [VariableDeclaration "Foo" "value" Nothing]] $
    parse [CLASS,IDENTIFIER "WithFoo",LBRACKET,IDENTIFIER "Foo",IDENTIFIER "value",SEMICOLON,RBRACKET]
testMultipleDeclarationSameLine = TestCase $
    assertEqual "expect class with two int fields" [Class "TwoInts" [] [VariableDeclaration "int" "num1" Nothing, VariableDeclaration "int" "num2" Nothing]] $
    parse [CLASS,IDENTIFIER "TwoInts",LBRACKET,INT,IDENTIFIER "num1",COMMA,IDENTIFIER "num2",SEMICOLON,RBRACKET]
testMultipleDeclarations = TestCase $
    assertEqual "expect class with int and char field" [Class "Multiple" [] [VariableDeclaration "int" "value" Nothing, VariableDeclaration "char" "letter" Nothing]] $
    parse [CLASS,IDENTIFIER "Multiple",LBRACKET,INT,IDENTIFIER "value",SEMICOLON,CHAR,IDENTIFIER "letter",SEMICOLON,RBRACKET]
testWithModifier = TestCase $
    assertEqual "expect class with int field" [Class "WithInt" [] [VariableDeclaration "int" "value" Nothing]] $
    parse [ABSTRACT,CLASS,IDENTIFIER "WithInt",LBRACKET,PUBLIC,INT,IDENTIFIER "value",SEMICOLON,RBRACKET]

testEmptyMethod = TestCase $
    assertEqual "expect class with method" [Class "WithMethod" [MethodDeclaration "int" "foo" [] (Block [])] []] $
    parse [CLASS,IDENTIFIER "WithMethod",LBRACKET,INT,IDENTIFIER "foo",LBRACE,RBRACE,SEMICOLON,RBRACKET]
testEmptyPrivateMethod = TestCase $ 
    assertEqual "expect class with method" [Class "WithMethod" [MethodDeclaration "int" "foo" [] (Block [])] []] $
    parse [CLASS,IDENTIFIER "WithMethod",LBRACKET,PRIVATE,INT,IDENTIFIER "foo",LBRACE,RBRACE,LBRACKET,RBRACKET,RBRACKET]
testEmptyVoidMethod = TestCase $
    assertEqual "expect class with method" [Class "WithMethod" [MethodDeclaration "void" "foo" [] (Block [])] []] $
    parse [CLASS,IDENTIFIER "WithMethod",LBRACKET,VOID,IDENTIFIER "foo",LBRACE,RBRACE,LBRACKET,RBRACKET,RBRACKET]
testEmptyMethodWithParam = TestCase $
    assertEqual "expect class with method with param" [Class "WithParam" [MethodDeclaration "void" "foo" [ParameterDeclaration "int" "param"] (Block [])] []] $
    parse [CLASS,IDENTIFIER "WithParam",LBRACKET,VOID,IDENTIFIER "foo",LBRACE,INT,IDENTIFIER "param",RBRACE,SEMICOLON,RBRACKET]
testEmptyMethodWithParams = TestCase $
    assertEqual "expect class with multiple params" [Class "WithParams" [MethodDeclaration "void" "foo" [ParameterDeclaration "int" "p1",ParameterDeclaration "Custom" "p2"] (Block [])] []] $
    parse [CLASS,IDENTIFIER "WithParams",LBRACKET,VOID,IDENTIFIER "foo",LBRACE,INT,IDENTIFIER "p1",COMMA,IDENTIFIER "Custom",IDENTIFIER "p2",RBRACE,SEMICOLON,RBRACKET]
testClassWithMethodAndField = TestCase $
    assertEqual "expect class with method and field" [Class "WithMethodAndField" [MethodDeclaration "void" "foo" [] (Block []), MethodDeclaration "int" "bar" [] (Block [])] [VariableDeclaration "int" "value" Nothing]] $
    parse [CLASS,IDENTIFIER "WithMethodAndField",LBRACKET,VOID,IDENTIFIER "foo",LBRACE,RBRACE,LBRACKET,RBRACKET,INT,IDENTIFIER "value",SEMICOLON,INT,IDENTIFIER "bar",LBRACE,RBRACE,SEMICOLON,RBRACKET]


tests = TestList [
    testSingleEmptyClass,
    testTwoEmptyClasses,
    testBooleanField,
    testIntField,
    testCustomTypeField,
    testMultipleDeclarations,
    testWithModifier,
    testEmptyMethod,
    testEmptyPrivateMethod,
    testEmptyVoidMethod,
    testEmptyMethodWithParam,
    testEmptyMethodWithParams,
    testClassWithMethodAndField
    ]