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products/sources/formale Sprachen/VDM/VDMSL/VCParser-masterSL/ (Wiener Entwicklungsmethode ^©) Datei vom 13.4.2020 mit Größe 7 kB

SSL VCParserTest.vdmsl Sprache: VDM

module VCParserTest
imports from VCParser
    types
        ERROR renamed ERROR;
        PARSED renamed PARSED;
        TREE renamed TREE;
    functions
        takeChar renamed takeChar;
        takeString renamed takeString;
        series renamed series;
        either renamed either;
        star renamed star;
        plus renamed plus;
        option renamed option;
        trimBlanks renamed trimBlanks;
        fail renamed fail;
        concat renamed concat;
        pass renamed pass;
        label renamed label;
        trans renamed trans;
        transtree renamed transtree;
        iferror renamed iferror;
    values
        any renamed any;
        digit renamed digit;
        natnum renamed natnum;
        integer renamed integer;
exports all
definitions
values
    a = takeChar('a');
    b = takeChar('b');
    c = takeChar('c');
functions
    id : PARSED -> PARSED
    id(parsed) == parsed;
operations
    test : PARSED * (PARSED->bool) ==> ()
    test(parsed, result) == skip
    pre result(parsed);

    /* any */
    test_any : () ==> ()
    test_any() == (
        test(any("a"), lambda p:PARSED & p.parsed.contents = "a");
        test(any("1"), lambda p:PARSED & p.parsed.contents = "1");
        test(any(""), lambda p:PARSED & is_ERROR(p.parsed)));

    /* digit */
    test_digit : () ==> ()
    test_digit() == (
        test(digit("a"), lambda p:PARSED & is_ERROR(p.parsed));
        test(digit("1"), lambda p:PARSED & p.parsed.contents = "1");
        test(digit(""), lambda p:PARSED & is_ERROR(p.parsed)));

    /* natnum */
    test_natnum : () ==> ()
    test_natnum() == (
        test(natnum("0"), lambda p:PARSED & p.parsed.contents = "0");
        test(natnum("123"), lambda p:PARSED & p.parsed.contents = "123");
        test(natnum("123.45"), lambda p:PARSED & p.parsed.contents = "123");
        test(natnum("-1"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* integer */
    test_integer : () ==> ()
    test_integer() == (
        test(integer("0"), lambda p:PARSED & p.parsed.contents = "0");
        test(integer("123"), lambda p:PARSED & p.parsed.contents = "123");
        test(integer("-123"), lambda p:PARSED & p.parsed.contents = "-123");
        test(integer("123.45"), lambda p:PARSED & p.parsed.contents = "123");
        test(integer("-x"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* takeChar */
    test_takeChar : () ==> ()
    test_takeChar() == (
        test(takeChar('a')("abc"), lambda p:PARSED & p.parsed.contents = "a");
        test(takeChar('a')("bca"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* takeString */
    test_takeString : () ==> ()
    test_takeString() == (
        test(takeString("abc")("abcd"), lambda p:PARSED & p.parsed.contents = "abc");
        test(takeString("abc")("abx"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* star */
    test_star : () ==> ()
    test_star() == (
        test(star(a)("aabc"), lambda p:PARSED & len p.parsed.contents = 2);
        test(star(a)("abc"), lambda p:PARSED & len p.parsed.contents = 1);
        test(star(a)("bc"), lambda p:PARSED & len p.parsed.contents = 0));

    /* plus */
    test_plus : () ==> ()
    test_plus() == (
        test(plus(a)("aabc"), lambda p:PARSED & len p.parsed.contents = 2);
        test(plus(a)("abc"), lambda p:PARSED & len p.parsed.contents = 1);
        test(plus(a)("bc"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* option */
    test_option : () ==> ()
    test_option() == (
        test(option(a)("aabc"), lambda p:PARSED & p.parsed.contents = "a");
        test(option(a)("aabc"), lambda p:PARSED & p.remaining = "abc");
        test(option(a)("abc"), lambda p:PARSED & p.parsed.contents = "a");
        test(option(a)("abc"), lambda p:PARSED & p.remaining = "bc");
        test(option(a)("bc"), lambda p:PARSED & p.parsed.contents = "");
        test(option(a)("bc"), lambda p:PARSED & p.remaining = "bc");
    );

    /* concat */
    test_concat : () ==> ()
    test_concat() == (
        test(concat(plus(a))("aaabc"), lambda p:PARSED & p.parsed.contents = "aaa");
        test(concat(plus(a))("bc"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* trimBlanks */
    test_trimBlanks : () ==> ()
    test_trimBlanks() == (
        test(trimBlanks(a)(" a bc"), lambda p:PARSED & p.parsed.contents = "a");
        test(trimBlanks(a)(" a bc"), lambda p:PARSED & p.remaining = "bc");
        test(trimBlanks(a)("a bc"), lambda p:PARSED & p.parsed.contents = "a");
        test(trimBlanks(a)("a bc"), lambda p:PARSED & p.remaining = "bc");
        test(trimBlanks(a)(" abc"), lambda p:PARSED & p.parsed.contents = "a");
        test(trimBlanks(a)(" abc"), lambda p:PARSED & p.remaining = "bc");
        test(trimBlanks(a)("bc"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* fail */
    test_fail : () ==> ()
    test_fail() == (
        test(fail(a)("abc"), lambda p:PARSED & is_ERROR(p.parsed));
        test(fail(a)("bc"), lambda p:PARSED & p.parsed.contents = "");
        test(fail(a)("bc"), lambda p:PARSED & p.remaining = "bc"));

    /* pass */
    test_pass : () ==> ()
    test_pass() == (
        test(pass(a)("abc"), lambda p:PARSED & p.parsed.contents = "");
        test(pass(a)("abc"), lambda p:PARSED & p.remaining = "bc");
        test(pass(a)("bc"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* label */
    test_label : () ==> ()
    test_label() == (
        test(label("A", a)("abc"), lambda p:PARSED & p.parsed.nodelabel = "A");
        test(label("A", a)("abc"), lambda p:PARSED & p.parsed.contents = "a");
        test(label("A", a)("abc"), lambda p:PARSED & p.remaining = "bc");
        test(label("A", a)("bc"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* trans */
    test_trans : () ==> ()
    test_trans() == (
        let parsed = mk_PARSED(mk_TREE(nil, []), []) in (
            test(trans(lambda -:PARSED&parsed, a)("abc"), lambda p:PARSED & p = parsed);
            test(trans(lambda -:PARSED&parsed, a)("bc"), lambda p:PARSED & p = parsed)));

    /* transtree */
    test_transtree : () ==> ()
    test_transtree() == (
        let tree = mk_TREE(nil, []) in (
            test(transtree(lambda -:TREE&tree, a)("abc"), lambda p:PARSED & p.parsed = tree);
            test(transtree(lambda -:TREE&tree, a)("bc"), lambda p:PARSED & is_ERROR(p.parsed))));

    /* iferror */
    test_iferror : () ==> ()
    test_iferror() == (
        test(iferror("A", a)("abc"), lambda p:PARSED & p.parsed.contents = "a");
        test(iferror("A", a)("bc"), lambda p:PARSED & is_ERROR(p.parsed));
        test(iferror("A", a)("bc"), lambda p:PARSED & p.parsed.message = "A"));

    /* series */
    test_series : () ==> ()
    test_series() == (
        test(series([a, b])("abc"), lambda p:PARSED & len p.parsed.contents = 2);
        test(series([a, b])("bca"), lambda p:PARSED & is_ERROR(p.parsed)));

    /* either */
    test_either : () ==> ()
    test_either() == (
        test(either([a, b])("abc"), lambda p:PARSED & p.parsed.contents = "a");
        test(either([a, b])("bca"), lambda p:PARSED & p.parsed.contents = "b");
        test(either([a, b])("cab"), lambda p:PARSED & is_ERROR(p.parsed)));

traces

unit:
    test_any();
    test_digit();
    test_natnum();
    test_integer();
    test_takeChar();
    test_takeString();
    test_star();
    test_plus();
    test_option();
    test_concat();
    test_trimBlanks();
    test_fail();
    test_pass();
    test_trans();
    test_transtree();
    test_iferror();
    test_series();
    test_either();

combinators:
    let c1, c2 in set {star, plus, option, trimBlanks, fail, pass} in
        id(c1(c2(a))("abc"));
    let n1, n2 in set {series, either} in
        id(n1([n2([a, b]), c])("abc"));
    let c1, c2 in set {star, plus, option, trimBlanks, fail, pass} in
        let n1 in set {series, either} in
            id(c1(n1([c2(a), b]))("abc"));
end VCParserTest

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