Image service URL construction (#221)

* wip * bump to 1.1.18 * split tests * address feedback * wip * bump to 1.1.18 * split tests * address feedback * Create kotlin extensions * Bump version * add test --------- Co-authored-by: micbakos-rdx <[email protected]>
radixdlt · Sep 26, 2024 · 0d4c725 · 0d4c725
1 parent b6c2379
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diff --git a/Cargo.lock b/Cargo.lock
diff --git a/apple/Sources/Sargon/Util/URL+image.swift b/apple/Sources/Sargon/Util/URL+image.swift
@@ -0,0 +1,17 @@
+import Foundation
+import SargonUniFFI
+
+extension URL {
+	public func isVectorImage(type: VectorImageType) -> Bool {
+		imageUrlUtilsIsVectorImage(url: self.absoluteString, imageType: type)
+	}
+
+	public func imageURL(imageServiceURL: URL, size: CGSize) throws -> URL {
+		try imageUrlUtilsMakeImageUrl(
+			url: self.absoluteString,
+			imageServiceUrl: imageServiceURL.absoluteString,
+			width: UInt32(size.width),
+			height: UInt32(size.height)
+		)
+	}
+}
diff --git a/apple/Tests/TestCases/Prelude/ImageURLTests.swift b/apple/Tests/TestCases/Prelude/ImageURLTests.swift
@@ -0,0 +1,37 @@
+@testable import Sargon
+
+import CustomDump
+import Foundation
+import Sargon
+import SargonUniFFI
+import XCTest
+
+final class ImageURLTests: XCTestCase {
+	func test_is_vector_image() {
+		let svgURL = URL(string: "https://svgshare.com/i/U7z.svg")!
+
+		XCTAssert(svgURL.isVectorImage(type: .svg))
+	}
+
+	func test_image_url() throws {
+		let size = CGSize(width: 1024, height: 1024)
+		let imageServiceURL = URL(string: "https://image-service-dev.extratools.works")!
+		let svgURL = URL(string: "https://svgshare.com/i/U7z.svg")!
+
+		XCTAssertEqual(
+			try svgURL.imageURL(imageServiceURL: imageServiceURL, size: size),
+			URL(string: "https://image-service-dev.extratools.works/?imageOrigin=https%3A%2F%2Fsvgshare.com%2Fi%2FU7z.svg&imageSize=1024x1024&format=png")
+		)
+	}
+
+    func test_image_url_with_data_url() throws {
+		let size = CGSize(width: 1024, height: 1024)
+		let imageServiceURL = URL(string: "https://image-service-dev.extratools.works")!
+		let svgDataURL = URL(string: "data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201000%201000%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%3Cpolygon%20fill%3D%22hsla%2890%2C99%25%2C52%25%2C1%29%22%20points%3D%220%2C%200%2C%201000%2C%201000%2C%200%2C%201000%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpolygon%20fill%3D%22hsla%28199%2C90%25%2C64%25%2C1%29%22%20points%3D%221000%2C%201000%2C%201000%2C%200%2C%200%2C%200%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpath%20d%3D%22M1000%2C229%20A1000%2C1000%2C0%2C0%2C0%2C229%2C1000%20L1000%2C1000%20z%22%20fill%3D%22hsla%28140%2C98%25%2C61%25%2C1%29%22%2F%3E%0A%3Cpath%20d%3D%22M392%2C500%20L608%2C500%20M500%2C392%20L500%2C608%22%20stroke%3D%22hsla%2847%2C92%25%2C61%25%2C1%29%22%20stroke-width%3D%2272%22%2F%3E%0A%3C%2Fsvg%3E")!
+
+		XCTAssertEqual(
+			try svgDataURL.imageURL(imageServiceURL: imageServiceURL, size: size),
+			URL(string: "https://image-service-dev.extratools.works/?imageOrigin=data%3Aimage%2Fsvg%2Bxml%2C%253Csvg%2520viewBox%253D%25220%25200%25201000%25201000%2522%2520xmlns%253D%2522http%253A%252F%252Fwww.w3.org%252F2000%252Fsvg%2522%253E%250A%253Cpolygon%2520fill%253D%2522hsla%252890%252C99%2525%252C52%2525%252C1%2529%2522%2520points%253D%25220%252C%25200%252C%25201000%252C%25201000%252C%25200%252C%25201000%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpolygon%2520fill%253D%2522hsla%2528199%252C90%2525%252C64%2525%252C1%2529%2522%2520points%253D%25221000%252C%25201000%252C%25201000%252C%25200%252C%25200%252C%25200%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M1000%252C229%2520A1000%252C1000%252C0%252C0%252C0%252C229%252C1000%2520L1000%252C1000%2520z%2522%2520fill%253D%2522hsla%2528140%252C98%2525%252C61%2525%252C1%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M392%252C500%2520L608%252C500%2520M500%252C392%2520L500%252C608%2522%2520stroke%253D%2522hsla%252847%252C92%2525%252C61%2525%252C1%2529%2522%2520stroke-width%253D%252272%2522%252F%253E%250A%253C%252Fsvg%253E&imageSize=1024x1024&format=png")
+		)
+	}
+}
diff --git a/crates/sargon/Cargo.toml b/crates/sargon/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sargon"
-version = "1.1.16"
+version = "1.1.19"
 edition = "2021"
 build = "build.rs"
 

diff --git a/crates/sargon/src/core/utils/image_url_utils.rs b/crates/sargon/src/core/utils/image_url_utils.rs
@@ -0,0 +1,120 @@
+use crate::prelude::*;
+use crate::types::*;
+
+pub fn is_vector_image(url: &str, image_type: VectorImageType) -> bool {
+    let parsed_url = match parse_url(url) {
+        Ok(parsed) => parsed,
+        Err(_) => return false,
+    };
+    let query_parameters = parsed_url
+        .query_pairs()
+        .into_owned()
+        .collect::<HashMap<String, String>>();
+    let image_url_string = query_parameters
+        .get("imageOrigin")
+        .map(|s| s.as_str())
+        .unwrap_or(url);
+
+    image_url_string
+        .starts_with(&format!("data:image/{}", image_type.data_url_type()))
+        || image_url_string
+            .to_lowercase()
+            .ends_with(image_type.url_extension())
+}
+
+pub fn make_image_url(
+    url: &str,
+    image_service_url: &str,
+    width: u32,
+    height: u32,
+) -> Result<Url> {
+    const MIN_SIZE: u32 = 64;
+
+    let image_origin = url_encode(url);
+    let image_size =
+        format!("{}x{}", width.max(MIN_SIZE), height.max(MIN_SIZE));
+    let mut query =
+        format!("imageOrigin={}&imageSize={}", image_origin, image_size);
+
+    if is_vector_image(url, VectorImageType::Svg) {
+        query.push_str("&format=png");
+    }
+
+    let mut parsed_image_service_url = parse_url(image_service_url)?;
+    parsed_image_service_url.set_query(Some(&query));
+
+    Ok(parsed_image_service_url)
+}
+
+#[cfg(test)]
+mod tests {
+
+    use super::*;
+
+    #[test]
+    fn test_is_vector_image() {
+        let svg_url = "https://svgshare.com/i/U7z.svg";
+        let pdf_url = "https://example.com/image.pdf";
+        let svg_data_url = "data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201000%201000%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%3Cpolygon%20fill%3D%22hsla%2890%2C99%25%2C52%25%2C1%29%22%20points%3D%220%2C%200%2C%201000%2C%201000%2C%200%2C%201000%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpolygon%20fill%3D%22hsla%28199%2C90%25%2C64%25%2C1%29%22%20points%3D%221000%2C%201000%2C%201000%2C%200%2C%200%2C%200%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpath%20d%3D%22M1000%2C229%20A1000%2C1000%2C0%2C0%2C0%2C229%2C1000%20L1000%2C1000%20z%22%20fill%3D%22hsla%28140%2C98%25%2C61%25%2C1%29%22%2F%3E%0A%3Cpath%20d%3D%22M392%2C500%20L608%2C500%20M500%2C392%20L500%2C608%22%20stroke%3D%22hsla%2847%2C92%25%2C61%25%2C1%29%22%20stroke-width%3D%2272%22%2F%3E%0A%3C%2Fsvg%3E";
+        let pdf_data_url = "data:image/pdf,dummydata";
+
+        assert!(is_vector_image(svg_url, VectorImageType::Svg));
+        assert!(is_vector_image(pdf_url, VectorImageType::Pdf));
+        assert!(is_vector_image(svg_data_url, VectorImageType::Svg));
+        assert!(is_vector_image(pdf_data_url, VectorImageType::Pdf));
+    }
+
+    #[test]
+    fn test_is_vector_image_invalid_url() {
+        let url = "invalid";
+
+        assert_eq!(is_vector_image(url, VectorImageType::sample()), false);
+    }
+
+    #[test]
+    fn test_is_vector_image_with_image_origin_url() {
+        let url = "https://image-service-dev.extratools.works/?imageOrigin=https%3A%2F%2Fsvgshare.com%2Fi%2FU7z.svg&imageSize=1024x1024&format=png";
+
+        assert!(is_vector_image(url, VectorImageType::Svg));
+    }
+
+    #[test]
+    fn test_is_vector_image_with_image_origin_data_url() {
+        let data_url = "https://image-service-dev.extratools.works/?imageOrigin=data%3Aimage%2Fsvg%2Bxml%2C%253Csvg%2520viewBox%253D%25220%25200%25201000%25201000%2522%2520xmlns%253D%2522http%253A%252F%252Fwww.w3.org%252F2000%252Fsvg%2522%253E%250A%253Cpolygon%2520fill%253D%2522hsla%252890%252C99%2525%252C52%2525%252C1%2529%2522%2520points%253D%25220%252C%25200%252C%25201000%252C%25201000%252C%25200%252C%25201000%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpolygon%2520fill%253D%2522hsla%2528199%252C90%2525%252C64%2525%252C1%2529%2522%2520points%253D%25221000%252C%25201000%252C%25201000%252C%25200%252C%25200%252C%25200%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M1000%252C229%2520A1000%252C1000%252C0%252C0%252C0%252C229%252C1000%2520L1000%252C1000%2520z%2522%2520fill%253D%2522hsla%2528140%252C98%2525%252C61%2525%252C1%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M392%252C500%2520L608%252C500%2520M500%252C392%2520L500%252C608%2522%2520stroke%253D%2522hsla%252847%252C92%2525%252C61%2525%252C1%2529%2522%2520stroke-width%253D%252272%2522%252F%253E%250A%253C%252Fsvg%253E&imageSize=1024x1024&format=png";
+
+        assert!(is_vector_image(data_url, VectorImageType::Svg));
+    }
+
+    #[test]
+    fn test_make_image_url_svg_url() {
+        let image_service_url = "https://image-service-dev.extratools.works/";
+        let image_origin_url = "https://svgshare.com/i/U7z.svg";
+
+        pretty_assertions::assert_eq!(
+            make_image_url(image_origin_url, image_service_url, 1024, 1024).unwrap().to_string(),
+            "https://image-service-dev.extratools.works/?imageOrigin=https%3A%2F%2Fsvgshare.com%2Fi%2FU7z.svg&imageSize=1024x1024&format=png".to_string()
+        );
+    }
+
+    #[test]
+    fn test_make_image_url_svg_data_url() {
+        let image_service_url = "https://image-service-dev.extratools.works/";
+        let image_origin_data_url = "data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201000%201000%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%3Cpolygon%20fill%3D%22hsla%2890%2C99%25%2C52%25%2C1%29%22%20points%3D%220%2C%200%2C%201000%2C%201000%2C%200%2C%201000%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpolygon%20fill%3D%22hsla%28199%2C90%25%2C64%25%2C1%29%22%20points%3D%221000%2C%201000%2C%201000%2C%200%2C%200%2C%200%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpath%20d%3D%22M1000%2C229%20A1000%2C1000%2C0%2C0%2C0%2C229%2C1000%20L1000%2C1000%20z%22%20fill%3D%22hsla%28140%2C98%25%2C61%25%2C1%29%22%2F%3E%0A%3Cpath%20d%3D%22M392%2C500%20L608%2C500%20M500%2C392%20L500%2C608%22%20stroke%3D%22hsla%2847%2C92%25%2C61%25%2C1%29%22%20stroke-width%3D%2272%22%2F%3E%0A%3C%2Fsvg%3E";
+
+        pretty_assertions::assert_eq!(
+            make_image_url(image_origin_data_url, image_service_url, 1024, 1024).unwrap().to_string(),
+            "https://image-service-dev.extratools.works/?imageOrigin=data%3Aimage%2Fsvg%2Bxml%2C%253Csvg%2520viewBox%253D%25220%25200%25201000%25201000%2522%2520xmlns%253D%2522http%253A%252F%252Fwww.w3.org%252F2000%252Fsvg%2522%253E%250A%253Cpolygon%2520fill%253D%2522hsla%252890%252C99%2525%252C52%2525%252C1%2529%2522%2520points%253D%25220%252C%25200%252C%25201000%252C%25201000%252C%25200%252C%25201000%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpolygon%2520fill%253D%2522hsla%2528199%252C90%2525%252C64%2525%252C1%2529%2522%2520points%253D%25221000%252C%25201000%252C%25201000%252C%25200%252C%25200%252C%25200%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M1000%252C229%2520A1000%252C1000%252C0%252C0%252C0%252C229%252C1000%2520L1000%252C1000%2520z%2522%2520fill%253D%2522hsla%2528140%252C98%2525%252C61%2525%252C1%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M392%252C500%2520L608%252C500%2520M500%252C392%2520L500%252C608%2522%2520stroke%253D%2522hsla%252847%252C92%2525%252C61%2525%252C1%2529%2522%2520stroke-width%253D%252272%2522%252F%253E%250A%253C%252Fsvg%253E&imageSize=1024x1024&format=png".to_string()
+        );
+    }
+
+    #[test]
+    fn test_make_image_url_not_svg() {
+        let image_service_url = "https://image-service-dev.extratools.works/";
+        let image_origin_url = "https://sgo4bmuvgu4t24bvdcfbndmnxigspezdsnzoevon2jb5odru7auq.arweave.net/kZ3AspU1OT1wNRiKFo2Nug0nkyOTcuJVzdJD1w40-Ck";
+
+        pretty_assertions::assert_eq!(
+            make_image_url(image_origin_url, image_service_url, 1024, 1024).unwrap().to_string(),
+            "https://image-service-dev.extratools.works/?imageOrigin=https%3A%2F%2Fsgo4bmuvgu4t24bvdcfbndmnxigspezdsnzoevon2jb5odru7auq.arweave.net%2FkZ3AspU1OT1wNRiKFo2Nug0nkyOTcuJVzdJD1w40-Ck&imageSize=1024x1024".to_string()
+        );
+    }
+}
diff --git a/crates/sargon/src/core/utils/image_url_utils_uniffi_fn.rs b/crates/sargon/src/core/utils/image_url_utils_uniffi_fn.rs
@@ -0,0 +1,55 @@
+use crate::prelude::*;
+use crate::types::*;
+
+#[uniffi::export]
+pub fn image_url_utils_is_vector_image(
+    url: &str,
+    image_type: VectorImageType,
+) -> bool {
+    is_vector_image(url, image_type)
+}
+
+#[uniffi::export]
+pub fn image_url_utils_make_image_url(
+    url: &str,
+    image_service_url: &str,
+    width: u32,
+    height: u32,
+) -> Result<Url> {
+    make_image_url(url, image_service_url, width, height)
+}
+
+#[cfg(test)]
+mod tests {
+
+    use super::*;
+
+    #[test]
+    fn test_image_url_utils_is_vector_image() {
+        let url = "https://svgshare.com/i/U7z.svg";
+        let image_type = VectorImageType::Svg;
+
+        assert_eq!(
+            is_vector_image(url, image_type),
+            image_url_utils_is_vector_image(&url, image_type)
+        )
+    }
+
+    #[test]
+    fn test_image_url_utils_make_image_url() {
+        let url = "https://svgshare.com/i/U7z.svg";
+        let image_service_url = "https://image-service-dev.extratools.works";
+        let width = 1024;
+        let height = 1024;
+
+        assert_eq!(
+            make_image_url(url, image_service_url, width, height),
+            image_url_utils_make_image_url(
+                url,
+                image_service_url,
+                width,
+                height
+            )
+        )
+    }
+}
diff --git a/crates/sargon/src/core/utils/mod.rs b/crates/sargon/src/core/utils/mod.rs
@@ -1,9 +1,13 @@
 mod factory;
+mod image_url_utils;
+mod image_url_utils_uniffi_fn;
 mod logged_panic;
 mod serialization;
 mod string_utils;
 
 pub use factory::*;
+pub use image_url_utils::*;
+pub use image_url_utils_uniffi_fn::*;
 pub use logged_panic::*;
 pub use serialization::*;
 pub use string_utils::*;

diff --git a/crates/sargon/src/core/utils/string_utils.rs b/crates/sargon/src/core/utils/string_utils.rs
@@ -1,4 +1,5 @@
 use crate::CommonError;
+use url::form_urlencoded;
 use url::Url;
 
 /// Returns the last `n` chars of the &str `s`. If `s` is shorter than `n`
@@ -42,6 +43,10 @@ pub fn parse_url(s: impl AsRef<str>) -> Result<Url, CommonError> {
     })
 }
 
+pub fn url_encode(s: impl AsRef<str>) -> String {
+    form_urlencoded::byte_serialize(s.as_ref().as_bytes()).collect()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -104,4 +109,19 @@ mod tests {
     fn test_parse_url_invalid() {
         assert!(parse_url("https/radixdlt").is_err());
     }
+
+    #[test]
+    fn test_url_encode() {
+        let url = "https://svgshare.com/i/U7z.svg";
+        let data_url = "data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201000%201000%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%3Cpolygon%20fill%3D%22hsla%2890%2C99%25%2C52%25%2C1%29%22%20points%3D%220%2C%200%2C%201000%2C%201000%2C%200%2C%201000%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpolygon%20fill%3D%22hsla%28199%2C90%25%2C64%25%2C1%29%22%20points%3D%221000%2C%201000%2C%201000%2C%200%2C%200%2C%200%22%20transform%3D%22scale%28-1%2C1%29%20translate%28-1000%29%22%2F%3E%0A%3Cpath%20d%3D%22M1000%2C229%20A1000%2C1000%2C0%2C0%2C0%2C229%2C1000%20L1000%2C1000%20z%22%20fill%3D%22hsla%28140%2C98%25%2C61%25%2C1%29%22%2F%3E%0A%3Cpath%20d%3D%22M392%2C500%20L608%2C500%20M500%2C392%20L500%2C608%22%20stroke%3D%22hsla%2847%2C92%25%2C61%25%2C1%29%22%20stroke-width%3D%2272%22%2F%3E%0A%3C%2Fsvg%3E";
+
+        pretty_assertions::assert_eq!(
+            url_encode(url),
+            "https%3A%2F%2Fsvgshare.com%2Fi%2FU7z.svg"
+        );
+        pretty_assertions::assert_eq!(
+            url_encode(data_url),
+            "data%3Aimage%2Fsvg%2Bxml%2C%253Csvg%2520viewBox%253D%25220%25200%25201000%25201000%2522%2520xmlns%253D%2522http%253A%252F%252Fwww.w3.org%252F2000%252Fsvg%2522%253E%250A%253Cpolygon%2520fill%253D%2522hsla%252890%252C99%2525%252C52%2525%252C1%2529%2522%2520points%253D%25220%252C%25200%252C%25201000%252C%25201000%252C%25200%252C%25201000%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpolygon%2520fill%253D%2522hsla%2528199%252C90%2525%252C64%2525%252C1%2529%2522%2520points%253D%25221000%252C%25201000%252C%25201000%252C%25200%252C%25200%252C%25200%2522%2520transform%253D%2522scale%2528-1%252C1%2529%2520translate%2528-1000%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M1000%252C229%2520A1000%252C1000%252C0%252C0%252C0%252C229%252C1000%2520L1000%252C1000%2520z%2522%2520fill%253D%2522hsla%2528140%252C98%2525%252C61%2525%252C1%2529%2522%252F%253E%250A%253Cpath%2520d%253D%2522M392%252C500%2520L608%252C500%2520M500%252C392%2520L500%252C608%2522%2520stroke%253D%2522hsla%252847%252C92%2525%252C61%2525%252C1%2529%2522%2520stroke-width%253D%252272%2522%252F%253E%250A%253C%252Fsvg%253E"
+        );
+    }
 }
diff --git a/crates/sargon/src/types/mod.rs b/crates/sargon/src/types/mod.rs
@@ -1,3 +1,7 @@
 mod ffi_url;
+mod vector_image_type;
+mod vector_image_type_uniffi_fn;
 
 pub use ffi_url::*;
+pub use vector_image_type::*;
+pub use vector_image_type_uniffi_fn::*;
diff --git a/crates/sargon/src/types/vector_image_type.rs b/crates/sargon/src/types/vector_image_type.rs
@@ -0,0 +1,64 @@
+use crate::prelude::*;
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, uniffi::Enum)]
+pub enum VectorImageType {
+    Svg,
+    Pdf,
+}
+
+impl VectorImageType {
+    pub fn url_extension(&self) -> &str {
+        match self {
+            VectorImageType::Svg => ".svg",
+            VectorImageType::Pdf => ".pdf",
+        }
+    }
+
+    pub fn data_url_type(&self) -> &str {
+        match self {
+            VectorImageType::Svg => "svg+xml",
+            VectorImageType::Pdf => "pdf",
+        }
+    }
+}
+
+impl HasSampleValues for VectorImageType {
+    fn sample() -> Self {
+        Self::Svg
+    }
+
+    fn sample_other() -> Self {
+        Self::Pdf
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[allow(clippy::upper_case_acronyms)]
+    type SUT = VectorImageType;
+
+    #[test]
+    fn inequality() {
+        assert_ne!(SUT::sample(), SUT::sample_other());
+    }
+
+    #[test]
+    fn equality() {
+        assert_eq!(SUT::sample(), SUT::sample());
+        assert_eq!(SUT::sample_other(), SUT::sample_other());
+    }
+
+    #[test]
+    fn test_url_extension() {
+        assert_eq!(SUT::sample().url_extension(), ".svg");
+        assert_eq!(SUT::sample_other().url_extension(), ".pdf");
+    }
+
+    #[test]
+    fn test_data_url_type() {
+        assert_eq!(SUT::sample().data_url_type(), "svg+xml");
+        assert_eq!(SUT::sample_other().data_url_type(), "pdf");
+    }
+}