monolith/src/tests/url/resolve_url.rs

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#[cfg(test)]
mod passing {
    use crate::url;
    use url::ParseError;

    #[test]
    fn from_https_to_level_up_relative() -> Result<(), ParseError> {
        let resolved_url =
            url::resolve_url("https://www.kernel.org", "../category/signatures.html")?;

        assert_eq!(
            resolved_url.as_str(),
            "https://www.kernel.org/category/signatures.html"
        );

        Ok(())
    }

    #[test]
    fn from_just_filename_to_full_https_url() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "saved_page.htm",
            "https://www.kernel.org/category/signatures.html",
        )?;

        assert_eq!(
            resolved_url.as_str(),
            "https://www.kernel.org/category/signatures.html"
        );

        Ok(())
    }

    #[test]
    fn from_https_url_to_url_with_no_protocol() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "https://www.kernel.org",
            "//www.kernel.org/theme/images/logos/tux.png",
        )?;

        assert_eq!(
            resolved_url.as_str(),
            "https://www.kernel.org/theme/images/logos/tux.png"
        );

        Ok(())
    }

    #[test]
    fn from_https_url_to_url_with_no_protocol_and_on_different_hostname() -> Result<(), ParseError>
    {
        let resolved_url = url::resolve_url(
            "https://www.kernel.org",
            "//another-host.org/theme/images/logos/tux.png",
        )?;

        assert_eq!(
            resolved_url.as_str(),
            "https://another-host.org/theme/images/logos/tux.png"
        );

        Ok(())
    }

    #[test]
    fn from_https_url_to_relative_root_path() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "https://www.kernel.org/category/signatures.html",
            "/theme/images/logos/tux.png",
        )?;

        assert_eq!(
            resolved_url.as_str(),
            "https://www.kernel.org/theme/images/logos/tux.png"
        );

        Ok(())
    }

    #[test]
    fn from_https_to_just_filename() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "https://www.w3schools.com/html/html_iframe.asp",
            "default.asp",
        )?;

        assert_eq!(
            resolved_url.as_str(),
            "https://www.w3schools.com/html/default.asp"
        );

        Ok(())
    }

    #[test]
    fn from_data_url_to_https() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "data:text/html;base64,V2VsY29tZSBUbyBUaGUgUGFydHksIDxiPlBhbDwvYj4h",
            "https://www.kernel.org/category/signatures.html",
        )?;

        assert_eq!(
            resolved_url.as_str(),
            "https://www.kernel.org/category/signatures.html"
        );

        Ok(())
    }

    #[test]
    fn from_data_url_to_data_url() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "data:text/html;base64,V2VsY29tZSBUbyBUaGUgUGFydHksIDxiPlBhbDwvYj4h",
            "data:text/html;base64,PGEgaHJlZj0iaW5kZXguaHRtbCI+SG9tZTwvYT4K",
        )?;

        assert_eq!(
            resolved_url.as_str(),
            "data:text/html;base64,PGEgaHJlZj0iaW5kZXguaHRtbCI+SG9tZTwvYT4K"
        );

        Ok(())
    }

    #[test]
    fn from_file_url_to_relative_path() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "file:///home/user/Websites/my-website/index.html",
            "assets/images/logo.png",
        )
        .unwrap_or(str!());

        assert_eq!(
            resolved_url.as_str(),
            "file:///home/user/Websites/my-website/assets/images/logo.png"
        );

        Ok(())
    }

    #[test]
    fn from_file_url_to_relative_path_with_backslashes() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "file:\\\\\\home\\user\\Websites\\my-website\\index.html",
            "assets\\images\\logo.png",
        )
        .unwrap_or(str!());

        assert_eq!(
            resolved_url.as_str(),
            "file:///home/user/Websites/my-website/assets/images/logo.png"
        );

        Ok(())
    }

    #[test]
    fn from_data_url_to_file_url() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "data:text/html;base64,V2VsY29tZSBUbyBUaGUgUGFydHksIDxiPlBhbDwvYj4h",
            "file:///etc/passwd",
        )
        .unwrap_or(str!());

        assert_eq!(resolved_url.as_str(), "file:///etc/passwd");

        Ok(())
    }

    #[test]
    fn preserve_fragment() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "http://doesnt-matter.local/",
            "css/fonts/fontmarvelous.svg#fontmarvelous",
        )
        .unwrap_or(str!());

        assert_eq!(
            resolved_url.as_str(),
            "http://doesnt-matter.local/css/fonts/fontmarvelous.svg#fontmarvelous"
        );

        Ok(())
    }

    #[test]
    fn resolve_from_file_url_to_file_url() -> Result<(), ParseError> {
        let resolved_url = if cfg!(windows) {
            url::resolve_url("file:///c:/index.html", "file:///c:/image.png").unwrap_or(str!())
        } else {
            url::resolve_url("file:///tmp/index.html", "file:///tmp/image.png").unwrap_or(str!())
        };

        assert_eq!(
            resolved_url.as_str(),
            if cfg!(windows) {
                "file:///c:/image.png"
            } else {
                "file:///tmp/image.png"
            }
        );

        Ok(())
    }
}

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#[cfg(test)]
mod failing {
    use crate::url;
    use url::ParseError;

    #[test]
    fn from_data_url_to_url_with_no_protocol() -> Result<(), ParseError> {
        let resolved_url = url::resolve_url(
            "data:text/html;base64,V2VsY29tZSBUbyBUaGUgUGFydHksIDxiPlBhbDwvYj4h",
            "//www.w3schools.com/html/html_iframe.asp",
        )
        .unwrap_or(str!());

        assert_eq!(resolved_url.as_str(), "");

        Ok(())
    }
}