csstest.cpp

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Copyright (c) 2021, Jan Koester jan.koester@gmx.net
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#include <iostream>
 
#include "../src/html.h"
#include "../src/css.h"
 
#define Red     "\033[0;31m"
#define Green   "\033[0;32m"
#define NOCOLOR "\033[0m"
 
static int testCount = 0;
static int passCount = 0;
 
static void check(bool cond, const char *desc) {
    ++testCount;
    if (cond) {
        ++passCount;
        std::cout << Green << "  PASS: " << desc << NOCOLOR << std::endl;
    } else {
        std::cout << Red   << "  FAIL: " << desc << NOCOLOR << std::endl;
    }
}
 
int main(){
    // --- Original setAttribute tests ---
    std::cout << "=== setAttribute tests ===" << std::endl;
 
    libhtmlpp::HtmlElement htmlel("div");
    try{
        htmlel.setAttribute("Style",":;(),+~'");
        check(true, "setAttribute with valid CSS chars");
    }catch(...){
        check(false, "setAttribute with valid CSS chars");
    }
 
    try{
        htmlel.setAttribute("Style", "\"");
        check(false, "setAttribute rejects double-quote");
    }catch(...){
        check(true, "setAttribute rejects double-quote");
    }
 
    // --- CSSDeclaration: parse inline style ---
    std::cout << "=== CSSDeclaration inline parse ===" << std::endl;
    {
        libhtmlpp::CSSDeclaration decl;
        decl.parse("color: red; font-size: 14px; margin: 0 auto;");
        check(decl.getProperties().size() == 3, "parsed 3 properties");
 
        const auto *p = decl.getProperty("color");
        check(p && p->getValue() == "red", "color is red");
 
        p = decl.getProperty("font-size");
        check(p && p->getValue() == "14px", "font-size is 14px");
 
        p = decl.getProperty("margin");
        check(p && p->getValue() == "0 auto", "margin is 0 auto");
    }
 
    // --- CSSDeclaration: property with function values ---
    std::cout << "=== CSSDeclaration function values ===" << std::endl;
    {
        libhtmlpp::CSSDeclaration decl;
        decl.parse("background: rgb(255, 0, 0); border: 1px solid black;");
        check(decl.getProperties().size() == 2, "parsed 2 properties with function");
 
        const auto *p = decl.getProperty("background");
        check(p && p->getValue() == "rgb(255, 0, 0)", "background has rgb()");
    }
 
    // --- CSSDeclaration: addProperty / removeProperty ---
    std::cout << "=== CSSDeclaration add/remove ===" << std::endl;
    {
        libhtmlpp::CSSDeclaration decl;
        decl.addProperty("color", "blue");
        decl.addProperty("margin", "10px");
        check(decl.getProperties().size() == 2, "added 2 properties");
 
        decl.addProperty("color", "green");
        check(decl.getProperties().size() == 2, "overwrite keeps count at 2");
 
        const auto *p = decl.getProperty("color");
        check(p && p->getValue() == "green", "color overwritten to green");
 
        decl.removeProperty("margin");
        check(decl.getProperties().size() == 1, "removed margin, 1 remaining");
    }
 
    // --- CSSDeclaration: serialize ---
    std::cout << "=== CSSDeclaration serialize ===" << std::endl;
    {
        libhtmlpp::CSSDeclaration decl;
        decl.addProperty("color", "red");
        decl.addProperty("font-size", "12px");
        std::string s = decl.serialize();
        check(s.find("color: red;") != std::string::npos, "serialize contains color");
        check(s.find("font-size: 12px;") != std::string::npos, "serialize contains font-size");
    }
 
    // --- CSSRule ---
    std::cout << "=== CSSRule ===" << std::endl;
    {
        libhtmlpp::CSSRule rule("div.container");
        rule.getDeclaration().addProperty("padding", "5px");
        rule.getDeclaration().addProperty("display", "flex");
 
        check(rule.getSelector() == "div.container", "selector is div.container");
 
        std::string s = rule.serialize();
        check(s.find("div.container{") != std::string::npos, "serialized rule has selector");
        check(s.find("padding: 5px;") != std::string::npos, "serialized rule has padding");
    }
 
    // --- CSSStyleSheet: parse simple rules ---
    std::cout << "=== CSSStyleSheet parse ===" << std::endl;
    {
        std::string css =
            "body { margin: 0; padding: 0; }\n"
            ".header { background-color: #333; color: white; }\n"
            "#main > p { font-size: 16px; }\n";
 
        libhtmlpp::CSSStyleSheet sheet;
        sheet.parse(css);
        check(sheet.getRuleCount() == 3, "parsed 3 rules");
 
        const auto *r = sheet.getRule(0);
        check(r && r->getSelector() == "body", "rule 0 selector is body");
        check(r && r->getDeclaration().getProperty("margin"), "body has margin");
 
        r = sheet.getRule(1);
        check(r && r->getSelector() == ".header", "rule 1 selector is .header");
 
        r = sheet.getRule(2);
        check(r && r->getSelector() == "#main > p", "rule 2 selector is #main > p");
    }
 
    // --- CSSStyleSheet: comments ---
    std::cout << "=== CSSStyleSheet comments ===" << std::endl;
    {
        std::string css = "/* header styles */ h1 { color: blue; } /* end */";
        libhtmlpp::CSSStyleSheet sheet;
        sheet.parse(css);
        check(sheet.getRuleCount() == 1, "parsed 1 rule with comments");
        check(sheet.getRule(0)->getSelector() == "h1", "selector is h1");
    }
 
    // --- CSSStyleSheet: @-rules ---
    std::cout << "=== CSSStyleSheet @-rules ===" << std::endl;
    {
        std::string css =
            "@import url('fonts.css');\n"
            "@media screen and (max-width: 600px) {\n"
            "  body { font-size: 12px; }\n"
            "  .nav { display: none; }\n"
            "}\n"
            "@font-face { font-family: MyFont; src: url('myfont.woff'); }\n";
 
        libhtmlpp::CSSStyleSheet sheet;
        sheet.parse(css);
 
        // @import becomes a rule with empty declaration
        check(sheet.getRuleCount() >= 1, "has at least 1 rule for @import");
 
        // @media should produce nested rules
        bool hasMediaBody = false;
        bool hasFontFace = false;
        for (size_t i = 0; i < sheet.getRuleCount(); ++i) {
            const auto *r = sheet.getRule(i);
            if (r->getSelector().find("@media") != std::string::npos &&
                r->getSelector().find("body") != std::string::npos) {
                hasMediaBody = true;
            }
            if (r->getSelector().find("@font-face") != std::string::npos) {
                hasFontFace = true;
            }
        }
        check(hasMediaBody, "@media body rule found");
        check(hasFontFace, "@font-face rule found");
    }
 
    // --- CSSStyleSheet: parseInlineStyle static helper ---
    std::cout << "=== parseInlineStyle ===" << std::endl;
    {
        auto decl = libhtmlpp::CSSStyleSheet::parseInlineStyle("color: red; font-weight: bold;");
        check(decl.getProperties().size() == 2, "parseInlineStyle parsed 2 props");
        check(decl.getProperty("color") && decl.getProperty("color")->getValue() == "red",
              "inline color is red");
    }
 
    // --- CSSStyleSheet: serialize roundtrip ---
    std::cout << "=== serialize roundtrip ===" << std::endl;
    {
        std::string css = "p { color: red; } a { text-decoration: none; }";
        libhtmlpp::CSSStyleSheet sheet;
        sheet.parse(css);
 
        std::string out = sheet.serialize(false);
        check(out.find("p{") != std::string::npos, "roundtrip contains p rule");
        check(out.find("a{") != std::string::npos, "roundtrip contains a rule");
        check(out.find("color: red;") != std::string::npos, "roundtrip contains color");
    }
 
    // --- Summary ---
    std::cout << "\n=== " << passCount << "/" << testCount << " tests passed ===" << std::endl;
 
    return (passCount == testCount) ? 0 : -1;
}