Merge branch '2.3.x'

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/type/ImageName.java

@@ -16,6 +16,9 @@
 
 package org.springframework.boot.buildpack.platform.docker.type;
 
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 import org.springframework.util.Assert;
 
 /**
@@ -25,11 +28,12 @@ import org.springframework.util.Assert;
  * @author Scott Frederick
  * @since 2.3.0
  * @see ImageReference
- * @see ImageReferenceParser
  * @see #of(String)
  */
 public class ImageName {
 
+	private static final Pattern PATTERN = Regex.IMAGE_NAME.compile();
+
 	private static final String DEFAULT_DOMAIN = "docker.io";
 
 	private static final String OFFICIAL_REPOSITORY_NAME = "library";
@@ -42,10 +46,10 @@ public class ImageName {
 
 	private final String string;
 
-	ImageName(String domain, String name) {
-		Assert.hasText(name, "Name must not be empty");
+	ImageName(String domain, String path) {
+		Assert.hasText(path, "Path must not be empty");
 		this.domain = getDomainOrDefault(domain);
-		this.name = getNameWithDefaultPath(this.domain, name);
+		this.name = getNameWithDefaultPath(this.domain, path);
 		this.string = this.domain + "/" + this.name;
 	}
 
@@ -128,8 +132,12 @@ public class ImageName {
 	 */
 	public static ImageName of(String value) {
 		Assert.hasText(value, "Value must not be empty");
-		ImageReferenceParser parser = ImageReferenceParser.of(value);
-		return new ImageName(parser.getDomain(), parser.getName());
+		Matcher matcher = PATTERN.matcher(value);
+		Assert.isTrue(matcher.matches(),
+				() -> "Unable to parse name \"" + value + "\". "
+						+ "Image name must be in the form '[domainHost:port/][path/]name', "
+						+ "with 'path' and 'name' containing only [a-z0-9][.][_][-]");
+		return new ImageName(matcher.group("domain"), matcher.group("path"));
 	}
 
 }

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/type/ImageReference.java

@@ -30,13 +30,14 @@ import org.springframework.util.ObjectUtils;
  * @author Scott Frederick
  * @since 2.3.0
  * @see ImageName
- * @see ImageReferenceParser
  */
 public final class ImageReference {
 
-	private static final String LATEST = "latest";
+	private static final Pattern PATTERN = Regex.IMAGE_REFERENCE.compile();
 
-	private static final Pattern TRAILING_VERSION_PATTERN = Pattern.compile("^(.*)(\\-\\d+)$");
+	private static final Pattern JAR_VERSION_PATTERN = Pattern.compile("^(.*)(\\-\\d+)$");
+
+	private static final String LATEST = "latest";
 
 	private final ImageName name;
 
@@ -182,7 +183,7 @@ public final class ImageReference {
 		}
 		String name = filename.substring(0, firstDot);
 		String version = filename.substring(firstDot + 1);
-		Matcher matcher = TRAILING_VERSION_PATTERN.matcher(name);
+		Matcher matcher = JAR_VERSION_PATTERN.matcher(name);
 		if (matcher.matches()) {
 			name = matcher.group(1);
 			version = matcher.group(2).substring(1) + "." + version;
@@ -224,9 +225,13 @@ public final class ImageReference {
 	 */
 	public static ImageReference of(String value) {
 		Assert.hasText(value, "Value must not be null");
-		ImageReferenceParser parser = ImageReferenceParser.of(value);
-		ImageName name = new ImageName(parser.getDomain(), parser.getName());
-		return new ImageReference(name, parser.getTag(), parser.getDigest());
+		Matcher matcher = PATTERN.matcher(value);
+		Assert.isTrue(matcher.matches(),
+				() -> "Unable to parse image reference \"" + value + "\". "
+						+ "Image reference must be in the form '[domainHost:port/][path/]name[:tag][@digest]', "
+						+ "with 'path' and 'name' containing only [a-z0-9][.][_][-]");
+		ImageName name = new ImageName(matcher.group("domain"), matcher.group("path"));
+		return new ImageReference(name, matcher.group("tag"), matcher.group("digest"));
 	}
 
 	/**

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/type/ImageReferenceParser.java

@@ -1,159 +0,0 @@
-/*
- * Copyright 2012-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.buildpack.platform.docker.type;
-
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-/**
- * A parser for Docker image references in the form
- * {@code [domainHost:port/][path/]name[:tag][@digest]}.
- *
- * @author Scott Frederick
- * @see <a href=
- * "https://github.com/docker/distribution/blob/master/reference/reference.go">Docker
- * grammar reference</a>
- * @see <a href=
- * "https://github.com/docker/distribution/blob/master/reference/regexp.go">Docker grammar
- * implementation</a>
- * @see <a href=
- * "https://stackoverflow.com/questions/37861791/how-are-docker-image-names-parsed">How
- * are Docker image names parsed?</a>
- */
-final class ImageReferenceParser {
-
-	private static final String DOMAIN_SEGMENT_REGEX = "(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])";
-
-	private static final String DOMAIN_PORT_REGEX = "[0-9]+";
-
-	private static final String DOMAIN_REGEX = oneOf(
-			groupOf(DOMAIN_SEGMENT_REGEX, repeating("[.]", DOMAIN_SEGMENT_REGEX)),
-			groupOf(DOMAIN_SEGMENT_REGEX, "[:]", DOMAIN_PORT_REGEX),
-			groupOf(DOMAIN_SEGMENT_REGEX, repeating("[.]", DOMAIN_SEGMENT_REGEX), "[:]", DOMAIN_PORT_REGEX),
-			"localhost");
-
-	private static final String NAME_CHARS_REGEX = "[a-z0-9]+";
-
-	private static final String NAME_SEPARATOR_REGEX = "(?:[._]|__|[-]*)";
-
-	private static final String NAME_SEGMENT_REGEX = groupOf(NAME_CHARS_REGEX,
-			optional(repeating(NAME_SEPARATOR_REGEX, NAME_CHARS_REGEX)));
-
-	private static final String NAME_PATH_REGEX = groupOf(NAME_SEGMENT_REGEX,
-			optional(repeating("[/]", NAME_SEGMENT_REGEX)));
-
-	private static final String DIGEST_ALGORITHM_SEGMENT_REGEX = "[A-Za-z][A-Za-z0-9]*";
-
-	private static final String DIGEST_ALGORITHM_SEPARATOR_REGEX = "[-_+.]";
-
-	private static final String DIGEST_ALGORITHM_REGEX = groupOf(DIGEST_ALGORITHM_SEGMENT_REGEX,
-			optional(repeating(DIGEST_ALGORITHM_SEPARATOR_REGEX, DIGEST_ALGORITHM_SEGMENT_REGEX)));
-
-	private static final String DIGEST_VALUE_REGEX = "[0-9A-Fa-f]{32,}";
-
-	private static final String DIGEST_REGEX = groupOf(DIGEST_ALGORITHM_REGEX, "[:]", DIGEST_VALUE_REGEX);
-
-	private static final String TAG_REGEX = "[\\w][\\w.-]{0,127}";
-
-	private static final String DOMAIN_CAPTURE_GROUP = "domain";
-
-	private static final String NAME_CAPTURE_GROUP = "name";
-
-	private static final String TAG_CAPTURE_GROUP = "tag";
-
-	private static final String DIGEST_CAPTURE_GROUP = "digest";
-
-	private static final Pattern REFERENCE_REGEX_PATTERN = patternOf(anchored(
-			optional(captureOf(DOMAIN_CAPTURE_GROUP, DOMAIN_REGEX), "[/]"),
-			captureOf(NAME_CAPTURE_GROUP, NAME_PATH_REGEX), optional("[:]", captureOf(TAG_CAPTURE_GROUP, TAG_REGEX)),
-			optional("[@]", captureOf(DIGEST_CAPTURE_GROUP, DIGEST_REGEX))));
-
-	private final String domain;
-
-	private final String name;
-
-	private final String tag;
-
-	private final String digest;
-
-	private ImageReferenceParser(String domain, String name, String tag, String digest) {
-		this.domain = domain;
-		this.name = name;
-		this.tag = tag;
-		this.digest = digest;
-	}
-
-	String getDomain() {
-		return this.domain;
-	}
-
-	String getName() {
-		return this.name;
-	}
-
-	String getTag() {
-		return this.tag;
-	}
-
-	String getDigest() {
-		return this.digest;
-	}
-
-	static ImageReferenceParser of(String reference) {
-		Matcher matcher = REFERENCE_REGEX_PATTERN.matcher(reference);
-		if (!matcher.matches()) {
-			throw new IllegalArgumentException("Unable to parse image reference \"" + reference + "\". "
-					+ "Image reference must be in the form \"[domainHost:port/][path/]name[:tag][@digest]\", "
-					+ "with \"path\" and \"name\" containing only [a-z0-9][.][_][-]");
-		}
-		return new ImageReferenceParser(matcher.group(DOMAIN_CAPTURE_GROUP), matcher.group(NAME_CAPTURE_GROUP),
-				matcher.group(TAG_CAPTURE_GROUP), matcher.group(DIGEST_CAPTURE_GROUP));
-	}
-
-	private static Pattern patternOf(String... expressions) {
-		return Pattern.compile(join(expressions));
-	}
-
-	private static String groupOf(String... expressions) {
-		return "(?:" + join(expressions) + ')';
-	}
-
-	private static String captureOf(String groupName, String... expressions) {
-		return "(?<" + groupName + ">" + join(expressions) + ')';
-	}
-
-	private static String oneOf(String... expressions) {
-		return groupOf(String.join("|", expressions));
-	}
-
-	private static String optional(String... expressions) {
-		return groupOf(join(expressions)) + '?';
-	}
-
-	private static String repeating(String... expressions) {
-		return groupOf(join(expressions)) + '+';
-	}
-
-	private static String anchored(String... expressions) {
-		return '^' + join(expressions) + '$';
-	}
-
-	private static String join(String... expressions) {
-		return String.join("", expressions);
-	}
-
-}

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/type/Regex.java

@@ -0,0 +1,143 @@
+/*
+ * Copyright 2012-2020 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.buildpack.platform.docker.type;
+
+import java.util.regex.Pattern;
+
+/**
+ * Regular Expressions for image names and references based on those found in the Docker
+ * codebase.
+ *
+ * @author Scott Frederick
+ * @author Phillip Webb
+ * @see <a href=
+ * "https://github.com/docker/distribution/blob/master/reference/reference.go">Docker
+ * grammar reference</a>
+ * @see <a href=
+ * "https://github.com/docker/distribution/blob/master/reference/regexp.go">Docker grammar
+ * implementation</a>
+ * @see <a href=
+ * "https://stackoverflow.com/questions/37861791/how-are-docker-image-names-parsed">How
+ * are Docker image names parsed?</a>
+ */
+final class Regex implements CharSequence {
+
+	private static final Regex DOMAIN;
+	static {
+		Regex component = Regex.oneOf("[a-zA-Z0-9]", "[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]");
+		Regex dotComponent = Regex.group("[.]", component);
+		Regex colonPort = Regex.of("[:][0-9]+");
+		Regex dottedDomain = Regex.group(component, dotComponent.oneOrMoreTimes());
+		Regex dottedDomainAndPort = Regex.group(component, dotComponent.oneOrMoreTimes(), colonPort);
+		Regex nameAndPort = Regex.group(component, colonPort);
+		DOMAIN = Regex.oneOf(dottedDomain, nameAndPort, dottedDomainAndPort, "localhost");
+	}
+
+	private static final Regex PATH_COMPONENT;
+	static {
+		Regex segment = Regex.of("[a-z0-9]+");
+		Regex separator = Regex.group("[._]|__|[-]*");
+		Regex separatedSegment = Regex.group(separator, segment).oneOrMoreTimes();
+		PATH_COMPONENT = Regex.of(segment, Regex.group(separatedSegment).zeroOrOnce());
+	}
+
+	private static final Regex PATH;
+	static {
+		Regex component = PATH_COMPONENT;
+		Regex slashComponent = Regex.group("[/]", component);
+		Regex slashComponents = Regex.group(slashComponent.oneOrMoreTimes());
+		PATH = Regex.of(component, slashComponents.zeroOrOnce());
+	}
+
+	static final Regex IMAGE_NAME;
+	static {
+		Regex domain = DOMAIN.capturedAs("domain");
+		Regex domainSlash = Regex.group(domain, "[/]");
+		Regex path = PATH.capturedAs("path");
+		Regex optionalDomainSlash = domainSlash.zeroOrOnce();
+		IMAGE_NAME = Regex.of(optionalDomainSlash, path);
+	}
+
+	private static final Regex TAG_REGEX = Regex.of("[\\w][\\w.-]{0,127}");
+
+	private static final Regex DIGEST_REGEX = Regex
+			.of("[A-Za-z][A-Za-z0-9]*(?:[-_+.][A-Za-z][A-Za-z0-9]*)*[:][[A-Fa-f0-9]]{32,}");
+
+	static final Regex IMAGE_REFERENCE;
+	static {
+		Regex tag = TAG_REGEX.capturedAs("tag");
+		Regex digest = DIGEST_REGEX.capturedAs("digest");
+		Regex atDigest = Regex.group("[@]", digest);
+		Regex colonTag = Regex.group("[:]", tag);
+		IMAGE_REFERENCE = Regex.of(IMAGE_NAME, colonTag.zeroOrOnce(), atDigest.zeroOrOnce());
+	}
+
+	private final String value;
+
+	private Regex(CharSequence value) {
+		this.value = value.toString();
+	}
+
+	private Regex oneOrMoreTimes() {
+		return new Regex(this.value + "+");
+	}
+
+	private Regex zeroOrOnce() {
+		return new Regex(this.value + "?");
+	}
+
+	private Regex capturedAs(String name) {
+		return new Regex("(?<" + name + ">" + this + ")");
+	}
+
+	Pattern compile() {
+		return Pattern.compile("^" + this.value + "$");
+	}
+
+	@Override
+	public int length() {
+		return this.value.length();
+	}
+
+	@Override
+	public char charAt(int index) {
+		return this.value.charAt(index);
+	}
+
+	@Override
+	public CharSequence subSequence(int start, int end) {
+		return this.value.subSequence(start, end);
+	}
+
+	@Override
+	public String toString() {
+		return this.value;
+	}
+
+	private static Regex of(CharSequence... expressions) {
+		return new Regex(String.join("", expressions));
+	}
+
+	private static Regex oneOf(CharSequence... expressions) {
+		return new Regex("(?:" + String.join("|", expressions) + ")");
+	}
+
+	private static Regex group(CharSequence... expressions) {
+		return new Regex("(?:" + String.join("", expressions) + ")");
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/type/ImageNameTests.java

@@ -71,12 +71,42 @@ class ImageNameTests {
 
 	@Test
 	void ofWhenSimpleNameAndPortCreatesImageName() {
+		ImageName imageName = ImageName.of("repo:8080/ubuntu");
+		assertThat(imageName.toString()).isEqualTo("repo:8080/ubuntu");
+		assertThat(imageName.getDomain()).isEqualTo("repo:8080");
+		assertThat(imageName.getName()).isEqualTo("ubuntu");
+	}
+
+	@Test
+	void ofWhenSimplePathAndPortCreatesImageName() {
 		ImageName imageName = ImageName.of("repo:8080/canonical/ubuntu");
 		assertThat(imageName.toString()).isEqualTo("repo:8080/canonical/ubuntu");
 		assertThat(imageName.getDomain()).isEqualTo("repo:8080");
 		assertThat(imageName.getName()).isEqualTo("canonical/ubuntu");
 	}
 
+	@Test
+	void ofWhenNameWithLongPathCreatesImageName() {
+		ImageName imageName = ImageName.of("path1/path2/path3/ubuntu");
+		assertThat(imageName.toString()).isEqualTo("docker.io/path1/path2/path3/ubuntu");
+		assertThat(imageName.getDomain()).isEqualTo("docker.io");
+		assertThat(imageName.getName()).isEqualTo("path1/path2/path3/ubuntu");
+	}
+
+	@Test
+	void ofWhenLocalhostDomainCreatesImageName() {
+		ImageName imageName = ImageName.of("localhost/ubuntu");
+		assertThat(imageName.getDomain()).isEqualTo("localhost");
+		assertThat(imageName.getName()).isEqualTo("ubuntu");
+	}
+
+	@Test
+	void ofWhenLocalhostDomainAndPathCreatesImageName() {
+		ImageName imageName = ImageName.of("localhost/library/ubuntu");
+		assertThat(imageName.getDomain()).isEqualTo("localhost");
+		assertThat(imageName.getName()).isEqualTo("library/ubuntu");
+	}
+
 	@Test
 	void ofWhenLegacyDomainUsesNewDomain() {
 		ImageName imageName = ImageName.of("index.docker.io/ubuntu");
@@ -96,6 +126,25 @@ class ImageNameTests {
 		assertThatIllegalArgumentException().isThrownBy(() -> ImageName.of("")).withMessage("Value must not be empty");
 	}
 
+	@Test
+	void ofWhenContainsUppercaseThrowsException() {
+		assertThatIllegalArgumentException().isThrownBy(() -> ImageName.of("Test"))
+				.withMessageContaining("Unable to parse name").withMessageContaining("Test");
+	}
+
+	@Test
+	void ofWhenNameIncludesTagThrowsException() {
+		assertThatIllegalArgumentException().isThrownBy(() -> ImageName.of("ubuntu:latest"))
+				.withMessageContaining("Unable to parse name").withMessageContaining(":latest");
+	}
+
+	@Test
+	void ofWhenNameIncludeDigestThrowsException() {
+		assertThatIllegalArgumentException().isThrownBy(
+				() -> ImageName.of("ubuntu@sha256:47bfdb88c3ae13e488167607973b7688f69d9e8c142c2045af343ec199649c09"))
+				.withMessageContaining("Unable to parse name").withMessageContaining("@sha256:47b");
+	}
+
 	@Test
 	void hashCodeAndEquals() {
 		ImageName n1 = ImageName.of("ubuntu");

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/type/ImageReferenceParserTests.java

@@ -1,158 +0,0 @@
-/*
- * Copyright 2012-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.buildpack.platform.docker.type;
-
-import org.junit.jupiter.api.Test;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-
-/**
- * Tests for {@link ImageReferenceParser}.
- *
- * @author Scott Frederick
- */
-class ImageReferenceParserTests {
-
-	@Test
-	void unableToParseWithUppercaseInName() {
-		assertThatIllegalArgumentException().isThrownBy(() -> ImageReferenceParser.of("Test"))
-				.withMessageContaining("Test");
-	}
-
-	@Test
-	void parsesName() {
-		ImageReferenceParser parser = ImageReferenceParser.of("ubuntu");
-		assertThat(parser.getDomain()).isNull();
-		assertThat(parser.getName()).isEqualTo("ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesNameWithPath() {
-		ImageReferenceParser parser = ImageReferenceParser.of("library/ubuntu");
-		assertThat(parser.getDomain()).isNull();
-		assertThat(parser.getName()).isEqualTo("library/ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesNameWithLongPath() {
-		ImageReferenceParser parser = ImageReferenceParser.of("path1/path2/path3/ubuntu");
-		assertThat(parser.getDomain()).isNull();
-		assertThat(parser.getName()).isEqualTo("path1/path2/path3/ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesDomainAndNameWithPath() {
-		ImageReferenceParser parser = ImageReferenceParser.of("repo.example.com/library/ubuntu");
-		assertThat(parser.getDomain()).isEqualTo("repo.example.com");
-		assertThat(parser.getName()).isEqualTo("library/ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesDomainWithPortAndNameWithPath() {
-		ImageReferenceParser parser = ImageReferenceParser.of("repo.example.com:8080/library/ubuntu");
-		assertThat(parser.getDomain()).isEqualTo("repo.example.com:8080");
-		assertThat(parser.getName()).isEqualTo("library/ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesSimpleDomainWithPortAndName() {
-		ImageReferenceParser parser = ImageReferenceParser.of("repo:8080/ubuntu");
-		assertThat(parser.getDomain()).isEqualTo("repo:8080");
-		assertThat(parser.getName()).isEqualTo("ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesSimpleDomainWithPortAndNameWithPath() {
-		ImageReferenceParser parser = ImageReferenceParser.of("repo:8080/library/ubuntu");
-		assertThat(parser.getDomain()).isEqualTo("repo:8080");
-		assertThat(parser.getName()).isEqualTo("library/ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesLocalhostDomainAndName() {
-		ImageReferenceParser parser = ImageReferenceParser.of("localhost/ubuntu");
-		assertThat(parser.getDomain()).isEqualTo("localhost");
-		assertThat(parser.getName()).isEqualTo("ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesLocalhostDomainAndNameWithPath() {
-		ImageReferenceParser parser = ImageReferenceParser.of("localhost/library/ubuntu");
-		assertThat(parser.getDomain()).isEqualTo("localhost");
-		assertThat(parser.getName()).isEqualTo("library/ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesNameAndTag() {
-		ImageReferenceParser parser = ImageReferenceParser.of("ubuntu:v1");
-		assertThat(parser.getDomain()).isNull();
-		assertThat(parser.getName()).isEqualTo("ubuntu");
-		assertThat(parser.getTag()).isEqualTo("v1");
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesNameAndDigest() {
-		ImageReferenceParser parser = ImageReferenceParser
-				.of("ubuntu@sha256:47bfdb88c3ae13e488167607973b7688f69d9e8c142c2045af343ec199649c09");
-		assertThat(parser.getDomain()).isNull();
-		assertThat(parser.getName()).isEqualTo("ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest())
-				.isEqualTo("sha256:47bfdb88c3ae13e488167607973b7688f69d9e8c142c2045af343ec199649c09");
-	}
-
-	@Test
-	void parsesReferenceWithTag() {
-		ImageReferenceParser parser = ImageReferenceParser.of("repo.example.com:8080/library/ubuntu:v1");
-		assertThat(parser.getDomain()).isEqualTo("repo.example.com:8080");
-		assertThat(parser.getName()).isEqualTo("library/ubuntu");
-		assertThat(parser.getTag()).isEqualTo("v1");
-		assertThat(parser.getDigest()).isNull();
-	}
-
-	@Test
-	void parsesReferenceWithDigest() {
-		ImageReferenceParser parser = ImageReferenceParser.of(
-				"repo.example.com:8080/library/ubuntu@sha256:47bfdb88c3ae13e488167607973b7688f69d9e8c142c2045af343ec199649c09");
-		assertThat(parser.getDomain()).isEqualTo("repo.example.com:8080");
-		assertThat(parser.getName()).isEqualTo("library/ubuntu");
-		assertThat(parser.getTag()).isNull();
-		assertThat(parser.getDigest())
-				.isEqualTo("sha256:47bfdb88c3ae13e488167607973b7688f69d9e8c142c2045af343ec199649c09");
-	}
-
-}

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/type/ImageReferenceTests.java

@@ -102,6 +102,16 @@ class ImageReferenceTests {
 		assertThat(reference.toString()).isEqualTo("docker.io/library/ubuntu:bionic");
 	}
 
+	@Test
+	void ofDomainPortAndTag() {
+		ImageReference reference = ImageReference.of("repo.example.com:8080/library/ubuntu:v1");
+		assertThat(reference.getDomain()).isEqualTo("repo.example.com:8080");
+		assertThat(reference.getName()).isEqualTo("library/ubuntu");
+		assertThat(reference.getTag()).isEqualTo("v1");
+		assertThat(reference.getDigest()).isNull();
+		assertThat(reference.toString()).isEqualTo("repo.example.com:8080/library/ubuntu:v1");
+	}
+
 	@Test
 	void ofNameAndDigest() {
 		ImageReference reference = ImageReference