416 lines
17 KiB
Plaintext
416 lines
17 KiB
Plaintext
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Tests for parsing scalar expressions
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> module Language.SQL.SimpleSQL.ScalarExprs (scalarExprTests) where
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> import Language.SQL.SimpleSQL.TestTypes
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> import Language.SQL.SimpleSQL.Syntax
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> scalarExprTests :: TestItem
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> scalarExprTests = Group "scalarExprTests"
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> [literals
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> ,identifiers
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> ,star
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> ,parameter
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> ,dots
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> ,app
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> ,caseexp
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> ,operators
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> ,parens
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> ,subqueries
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> ,aggregates
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> ,windowFunctions
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> ,functionsWithReservedNames
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> ]
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> literals :: TestItem
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> literals = Group "literals" $ map (uncurry (TestScalarExpr ansi2011))
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> [("3", NumLit "3")
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> ,("3.", NumLit "3.")
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> ,("3.3", NumLit "3.3")
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> ,(".3", NumLit ".3")
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> ,("3.e3", NumLit "3.e3")
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> ,("3.3e3", NumLit "3.3e3")
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> ,(".3e3", NumLit ".3e3")
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> ,("3e3", NumLit "3e3")
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> ,("3e+3", NumLit "3e+3")
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> ,("3e-3", NumLit "3e-3")
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> ,("'string'", StringLit "'" "'" "string")
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> ,("'string with a '' quote'", StringLit "'" "'" "string with a '' quote")
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> ,("'1'", StringLit "'" "'" "1")
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> ,("interval '3' day"
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> ,IntervalLit Nothing "3" (Itf "day" Nothing) Nothing)
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> ,("interval '3' day (3)"
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> ,IntervalLit Nothing "3" (Itf "day" $ Just (3,Nothing)) Nothing)
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> ,("interval '3 weeks'", TypedLit (TypeName [Name Nothing "interval"]) "3 weeks")
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> ]
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> identifiers :: TestItem
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> identifiers = Group "identifiers" $ map (uncurry (TestScalarExpr ansi2011))
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> [("iden1", Iden [Name Nothing "iden1"])
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> --,("t.a", Iden2 "t" "a")
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> ,("\"quoted identifier\"", Iden [Name (Just ("\"","\"")) "quoted identifier"])
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> ]
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> star :: TestItem
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> star = Group "star" $ map (uncurry (TestScalarExpr ansi2011))
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> [("*", Star)
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> --,("t.*", Star2 "t")
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> --,("ROW(t.*,42)", App "ROW" [Star2 "t", NumLit "42"])
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> ]
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> parameter :: TestItem
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> parameter = Group "parameter"
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> [TestScalarExpr ansi2011 "?" Parameter
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> ,TestScalarExpr postgres "$13" $ PositionalArg 13]
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> dots :: TestItem
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> dots = Group "dot" $ map (uncurry (TestScalarExpr ansi2011))
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> [("t.a", Iden [Name Nothing "t",Name Nothing "a"])
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> ,("t.*", BinOp (Iden [Name Nothing "t"]) [Name Nothing "."] Star)
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> ,("a.b.c", Iden [Name Nothing "a",Name Nothing "b",Name Nothing "c"])
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> ,("ROW(t.*,42)", App [Name Nothing "ROW"] [BinOp (Iden [Name Nothing "t"]) [Name Nothing "."] Star, NumLit "42"])
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> ]
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> app :: TestItem
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> app = Group "app" $ map (uncurry (TestScalarExpr ansi2011))
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> [("f()", App [Name Nothing "f"] [])
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> ,("f(a)", App [Name Nothing "f"] [Iden [Name Nothing "a"]])
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> ,("f(a,b)", App [Name Nothing "f"] [Iden [Name Nothing "a"], Iden [Name Nothing "b"]])
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> ]
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> caseexp :: TestItem
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> caseexp = Group "caseexp" $ map (uncurry (TestScalarExpr ansi2011))
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> [("case a when 1 then 2 end"
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> ,Case (Just $ Iden [Name Nothing "a"]) [([NumLit "1"]
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> ,NumLit "2")] Nothing)
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> ,("case a when 1 then 2 when 3 then 4 end"
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> ,Case (Just $ Iden [Name Nothing "a"]) [([NumLit "1"], NumLit "2")
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> ,([NumLit "3"], NumLit "4")] Nothing)
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> ,("case a when 1 then 2 when 3 then 4 else 5 end"
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> ,Case (Just $ Iden [Name Nothing "a"]) [([NumLit "1"], NumLit "2")
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> ,([NumLit "3"], NumLit "4")]
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> (Just $ NumLit "5"))
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> ,("case when a=1 then 2 when a=3 then 4 else 5 end"
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> ,Case Nothing [([BinOp (Iden [Name Nothing "a"]) [Name Nothing "="] (NumLit "1")], NumLit "2")
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> ,([BinOp (Iden [Name Nothing "a"]) [Name Nothing "="] (NumLit "3")], NumLit "4")]
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> (Just $ NumLit "5"))
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> ,("case a when 1,2 then 10 when 3,4 then 20 end"
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> ,Case (Just $ Iden [Name Nothing "a"]) [([NumLit "1",NumLit "2"]
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> ,NumLit "10")
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> ,([NumLit "3",NumLit "4"]
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> ,NumLit "20")]
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> Nothing)
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> ]
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> operators :: TestItem
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> operators = Group "operators"
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> [binaryOperators
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> ,unaryOperators
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> ,casts
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> ,miscOps]
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> binaryOperators :: TestItem
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> binaryOperators = Group "binaryOperators" $ map (uncurry (TestScalarExpr ansi2011))
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> [("a + b", BinOp (Iden [Name Nothing "a"]) [Name Nothing "+"] (Iden [Name Nothing "b"]))
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> -- sanity check fixities
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> -- todo: add more fixity checking
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> ,("a + b * c"
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> ,BinOp (Iden [Name Nothing "a"]) [Name Nothing "+"]
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> (BinOp (Iden [Name Nothing "b"]) [Name Nothing "*"] (Iden [Name Nothing "c"])))
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> ,("a * b + c"
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> ,BinOp (BinOp (Iden [Name Nothing "a"]) [Name Nothing "*"] (Iden [Name Nothing "b"]))
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> [Name Nothing "+"] (Iden [Name Nothing "c"]))
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> ]
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> unaryOperators :: TestItem
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> unaryOperators = Group "unaryOperators" $ map (uncurry (TestScalarExpr ansi2011))
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> [("not a", PrefixOp [Name Nothing "not"] $ Iden [Name Nothing "a"])
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> ,("not not a", PrefixOp [Name Nothing "not"] $ PrefixOp [Name Nothing "not"] $ Iden [Name Nothing "a"])
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> ,("+a", PrefixOp [Name Nothing "+"] $ Iden [Name Nothing "a"])
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> ,("-a", PrefixOp [Name Nothing "-"] $ Iden [Name Nothing "a"])
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> ]
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> casts :: TestItem
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> casts = Group "operators" $ map (uncurry (TestScalarExpr ansi2011))
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> [("cast('1' as int)"
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> ,Cast (StringLit "'" "'" "1") $ TypeName [Name Nothing "int"])
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> ,("int '3'"
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> ,TypedLit (TypeName [Name Nothing "int"]) "3")
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> ,("cast('1' as double precision)"
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> ,Cast (StringLit "'" "'" "1") $ TypeName [Name Nothing "double precision"])
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> ,("cast('1' as float(8))"
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> ,Cast (StringLit "'" "'" "1") $ PrecTypeName [Name Nothing "float"] 8)
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> ,("cast('1' as decimal(15,2))"
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> ,Cast (StringLit "'" "'" "1") $ PrecScaleTypeName [Name Nothing "decimal"] 15 2)
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> ,("double precision '3'"
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> ,TypedLit (TypeName [Name Nothing "double precision"]) "3")
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> ]
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> subqueries :: TestItem
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> subqueries = Group "unaryOperators" $ map (uncurry (TestScalarExpr ansi2011))
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> [("exists (select a from t)", SubQueryExpr SqExists ms)
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> ,("(select a from t)", SubQueryExpr SqSq ms)
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> ,("a in (select a from t)"
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> ,In True (Iden [Name Nothing "a"]) (InQueryExpr ms))
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> ,("a not in (select a from t)"
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> ,In False (Iden [Name Nothing "a"]) (InQueryExpr ms))
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> ,("a > all (select a from t)"
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> ,QuantifiedComparison (Iden [Name Nothing "a"]) [Name Nothing ">"] CPAll ms)
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> ,("a = some (select a from t)"
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> ,QuantifiedComparison (Iden [Name Nothing "a"]) [Name Nothing "="] CPSome ms)
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> ,("a <= any (select a from t)"
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> ,QuantifiedComparison (Iden [Name Nothing "a"]) [Name Nothing "<="] CPAny ms)
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> ]
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> where
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> ms = makeSelect
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> {qeSelectList = [(Iden [Name Nothing "a"],Nothing)]
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> ,qeFrom = [TRSimple [Name Nothing "t"]]
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> }
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> miscOps :: TestItem
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> miscOps = Group "unaryOperators" $ map (uncurry (TestScalarExpr ansi2011))
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> [("a in (1,2,3)"
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> ,In True (Iden [Name Nothing "a"]) $ InList $ map NumLit ["1","2","3"])
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> ,("a is null", PostfixOp [Name Nothing "is null"] (Iden [Name Nothing "a"]))
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> ,("a is not null", PostfixOp [Name Nothing "is not null"] (Iden [Name Nothing "a"]))
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> ,("a is true", PostfixOp [Name Nothing "is true"] (Iden [Name Nothing "a"]))
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> ,("a is not true", PostfixOp [Name Nothing "is not true"] (Iden [Name Nothing "a"]))
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> ,("a is false", PostfixOp [Name Nothing "is false"] (Iden [Name Nothing "a"]))
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> ,("a is not false", PostfixOp [Name Nothing "is not false"] (Iden [Name Nothing "a"]))
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> ,("a is unknown", PostfixOp [Name Nothing "is unknown"] (Iden [Name Nothing "a"]))
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> ,("a is not unknown", PostfixOp [Name Nothing "is not unknown"] (Iden [Name Nothing "a"]))
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> ,("a is distinct from b", BinOp (Iden [Name Nothing "a"]) [Name Nothing "is distinct from"] (Iden [Name Nothing "b"]))
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> ,("a is not distinct from b"
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> ,BinOp (Iden [Name Nothing "a"]) [Name Nothing "is not distinct from"] (Iden [Name Nothing "b"]))
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> ,("a like b", BinOp (Iden [Name Nothing "a"]) [Name Nothing "like"] (Iden [Name Nothing "b"]))
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> ,("a not like b", BinOp (Iden [Name Nothing "a"]) [Name Nothing "not like"] (Iden [Name Nothing "b"]))
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> ,("a is similar to b", BinOp (Iden [Name Nothing "a"]) [Name Nothing "is similar to"] (Iden [Name Nothing "b"]))
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> ,("a is not similar to b"
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> ,BinOp (Iden [Name Nothing "a"]) [Name Nothing "is not similar to"] (Iden [Name Nothing "b"]))
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> ,("a overlaps b", BinOp (Iden [Name Nothing "a"]) [Name Nothing "overlaps"] (Iden [Name Nothing "b"]))
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special operators
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> ,("a between b and c", SpecialOp [Name Nothing "between"] [Iden [Name Nothing "a"]
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> ,Iden [Name Nothing "b"]
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> ,Iden [Name Nothing "c"]])
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> ,("a not between b and c", SpecialOp [Name Nothing "not between"] [Iden [Name Nothing "a"]
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> ,Iden [Name Nothing "b"]
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> ,Iden [Name Nothing "c"]])
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> ,("(1,2)"
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> ,SpecialOp [Name Nothing "rowctor"] [NumLit "1", NumLit "2"])
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keyword special operators
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> ,("extract(day from t)"
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> , SpecialOpK [Name Nothing "extract"] (Just $ Iden [Name Nothing "day"]) [("from", Iden [Name Nothing "t"])])
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> ,("substring(x from 1 for 2)"
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> ,SpecialOpK [Name Nothing "substring"] (Just $ Iden [Name Nothing "x"]) [("from", NumLit "1")
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> ,("for", NumLit "2")])
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> ,("substring(x from 1)"
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> ,SpecialOpK [Name Nothing "substring"] (Just $ Iden [Name Nothing "x"]) [("from", NumLit "1")])
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> ,("substring(x for 2)"
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> ,SpecialOpK [Name Nothing "substring"] (Just $ Iden [Name Nothing "x"]) [("for", NumLit "2")])
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> ,("substring(x from 1 for 2 collate C)"
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> ,SpecialOpK [Name Nothing "substring"] (Just $ Iden [Name Nothing "x"])
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> [("from", NumLit "1")
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> ,("for", Collate (NumLit "2") [Name Nothing "C"])])
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this doesn't work because of a overlap in the 'in' parser
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> ,("POSITION( string1 IN string2 )"
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> ,SpecialOpK [Name Nothing "position"] (Just $ Iden [Name Nothing "string1"]) [("in", Iden [Name Nothing "string2"])])
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> ,("CONVERT(char_value USING conversion_char_name)"
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> ,SpecialOpK [Name Nothing "convert"] (Just $ Iden [Name Nothing "char_value"])
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> [("using", Iden [Name Nothing "conversion_char_name"])])
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> ,("TRANSLATE(char_value USING translation_name)"
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> ,SpecialOpK [Name Nothing "translate"] (Just $ Iden [Name Nothing "char_value"])
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> [("using", Iden [Name Nothing "translation_name"])])
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OVERLAY(string PLACING embedded_string FROM start
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[FOR length])
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> ,("OVERLAY(string PLACING embedded_string FROM start)"
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> ,SpecialOpK [Name Nothing "overlay"] (Just $ Iden [Name Nothing "string"])
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> [("placing", Iden [Name Nothing "embedded_string"])
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> ,("from", Iden [Name Nothing "start"])])
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> ,("OVERLAY(string PLACING embedded_string FROM start FOR length)"
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> ,SpecialOpK [Name Nothing "overlay"] (Just $ Iden [Name Nothing "string"])
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> [("placing", Iden [Name Nothing "embedded_string"])
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> ,("from", Iden [Name Nothing "start"])
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> ,("for", Iden [Name Nothing "length"])])
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TRIM( [ [{LEADING | TRAILING | BOTH}] [removal_char] FROM ]
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target_string
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[COLLATE collation_name] )
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> ,("trim(from target_string)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("both", StringLit "'" "'" " ")
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> ,("from", Iden [Name Nothing "target_string"])])
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> ,("trim(leading from target_string)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("leading", StringLit "'" "'" " ")
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> ,("from", Iden [Name Nothing "target_string"])])
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> ,("trim(trailing from target_string)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("trailing", StringLit "'" "'" " ")
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> ,("from", Iden [Name Nothing "target_string"])])
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> ,("trim(both from target_string)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("both", StringLit "'" "'" " ")
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> ,("from", Iden [Name Nothing "target_string"])])
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> ,("trim(leading 'x' from target_string)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("leading", StringLit "'" "'" "x")
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> ,("from", Iden [Name Nothing "target_string"])])
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> ,("trim(trailing 'y' from target_string)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("trailing", StringLit "'" "'" "y")
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> ,("from", Iden [Name Nothing "target_string"])])
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> ,("trim(both 'z' from target_string collate C)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("both", StringLit "'" "'" "z")
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> ,("from", Collate (Iden [Name Nothing "target_string"]) [Name Nothing "C"])])
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> ,("trim(leading from target_string)"
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> ,SpecialOpK [Name Nothing "trim"] Nothing
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> [("leading", StringLit "'" "'" " ")
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> ,("from", Iden [Name Nothing "target_string"])])
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> ]
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> aggregates :: TestItem
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> aggregates = Group "aggregates" $ map (uncurry (TestScalarExpr ansi2011))
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> [("count(*)",App [Name Nothing "count"] [Star])
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> ,("sum(a order by a)"
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> ,AggregateApp [Name Nothing "sum"] SQDefault [Iden [Name Nothing "a"]]
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> [SortSpec (Iden [Name Nothing "a"]) DirDefault NullsOrderDefault] Nothing)
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> ,("sum(all a)"
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> ,AggregateApp [Name Nothing "sum"] All [Iden [Name Nothing "a"]] [] Nothing)
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> ,("count(distinct a)"
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> ,AggregateApp [Name Nothing "count"] Distinct [Iden [Name Nothing "a"]] [] Nothing)
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> ]
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> windowFunctions :: TestItem
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> windowFunctions = Group "windowFunctions" $ map (uncurry (TestScalarExpr ansi2011))
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> [("max(a) over ()", WindowApp [Name Nothing "max"] [Iden [Name Nothing "a"]] [] [] Nothing)
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> ,("count(*) over ()", WindowApp [Name Nothing "count"] [Star] [] [] Nothing)
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> ,("max(a) over (partition by b)"
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> ,WindowApp [Name Nothing "max"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]] [] Nothing)
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> ,("max(a) over (partition by b,c)"
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> ,WindowApp [Name Nothing "max"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"],Iden [Name Nothing "c"]] [] Nothing)
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> ,("sum(a) over (order by b)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] []
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> [SortSpec (Iden [Name Nothing "b"]) DirDefault NullsOrderDefault] Nothing)
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> ,("sum(a) over (order by b desc,c)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] []
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> [SortSpec (Iden [Name Nothing "b"]) Desc NullsOrderDefault
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> ,SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault] Nothing)
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> ,("sum(a) over (partition by b order by c)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]]
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> [SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault] Nothing)
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> ,("sum(a) over (partition by b order by c range unbounded preceding)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]]
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> [SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange UnboundedPreceding)
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> ,("sum(a) over (partition by b order by c range 5 preceding)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]]
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> [SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange $ Preceding (NumLit "5"))
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> ,("sum(a) over (partition by b order by c range current row)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]]
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> [SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange Current)
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> ,("sum(a) over (partition by b order by c rows 5 following)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]]
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> [SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault]
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> $ Just $ FrameFrom FrameRows $ Following (NumLit "5"))
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> ,("sum(a) over (partition by b order by c range unbounded following)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]]
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> [SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault]
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> $ Just $ FrameFrom FrameRange UnboundedFollowing)
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> ,("sum(a) over (partition by b order by c \n\
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> \range between 5 preceding and 5 following)"
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> ,WindowApp [Name Nothing "sum"] [Iden [Name Nothing "a"]] [Iden [Name Nothing "b"]]
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> [SortSpec (Iden [Name Nothing "c"]) DirDefault NullsOrderDefault]
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> $ Just $ FrameBetween FrameRange
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> (Preceding (NumLit "5"))
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> (Following (NumLit "5")))
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> ]
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> parens :: TestItem
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> parens = Group "parens" $ map (uncurry (TestScalarExpr ansi2011))
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> [("(a)", Parens (Iden [Name Nothing "a"]))
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> ,("(a + b)", Parens (BinOp (Iden [Name Nothing "a"]) [Name Nothing "+"] (Iden [Name Nothing "b"])))
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> ]
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> functionsWithReservedNames :: TestItem
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> functionsWithReservedNames = Group "functionsWithReservedNames" $ map t
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> ["abs"
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> ,"char_length"
|
|
> ]
|
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> where
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> t fn = TestScalarExpr ansi2011 (fn ++ "(a)") $ App [Name Nothing fn] [Iden [Name Nothing "a"]]
|