Added first version of AssertThatPathExpression for a limited number transformations (more stuff is possible, but requires detection and transformation of static Files-methods).
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.assertj.core.api.Assertions.fail;
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public class PathExpression {
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private void pathExpression() {
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Path path = Paths.get("foo");
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Path otherPath = Paths.get("bar");
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assertThat(path).as("foo").isAbsolute();
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assertThat(path).isAbsolute();
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assertThat(path).isAbsolute();
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assertThat(path).as("foo").isRelative();
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assertThat(path).isRelative();
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assertThat(path).isRelative();
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assertThat(path).hasParentRaw(otherPath);
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assertThat(path.getParent()).isNotEqualTo(otherPath);
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assertThat(path).hasNoParentRaw();
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assertThat(path).hasNoParentRaw();
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assertThat(path.getParent()).isNotEqualTo(null);
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assertThat(path.getParent()).isNotNull();
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assertThat(path).as("foo").startsWithRaw(otherPath);
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assertThat(path).startsWithRaw(otherPath);
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assertThat(path).startsWithRaw(otherPath);
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assertThat(path.startsWith(otherPath)).as("foo").isEqualTo(false);
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assertThat(path.startsWith(otherPath)).isNotEqualTo(true);
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assertThat(path.startsWith(otherPath)).isFalse();
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assertThat(path.startsWith("otherPath")).as("foo").isEqualTo(true);
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assertThat(path.startsWith("otherPath")).isNotEqualTo(false);
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assertThat(path.startsWith("otherPath")).isTrue();
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assertThat(path.startsWith("otherPath")).as("foo").isEqualTo(false);
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assertThat(path.startsWith("otherPath")).isNotEqualTo(true);
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assertThat(path.startsWith("otherPath")).isFalse();
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assertThat(path).as("foo").endsWithRaw(otherPath);
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assertThat(path).endsWithRaw(otherPath);
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assertThat(path).endsWithRaw(otherPath);
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assertThat(path.endsWith(otherPath)).as("foo").isEqualTo(false);
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assertThat(path.endsWith(otherPath)).isNotEqualTo(true);
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assertThat(path.endsWith(otherPath)).isFalse();
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assertThat(path.endsWith("otherPath")).as("foo").isEqualTo(true);
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assertThat(path.endsWith("otherPath")).isNotEqualTo(false);
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assertThat(path.endsWith("otherPath")).isTrue();
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assertThat(path.endsWith("otherPath")).as("foo").isEqualTo(false);
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assertThat(path.endsWith("otherPath")).isNotEqualTo(true);
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assertThat(path.endsWith("otherPath")).isFalse();
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assertThat(Files.isReadable(path)).as("foo").isEqualTo(true);
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assertThat(Files.isReadable(path)).isNotEqualTo(false);
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assertThat(Files.isReadable(path)).isTrue();
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assertThat(Files.isReadable(path)).as("foo").isEqualTo(false);
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assertThat(Files.isReadable(path)).isNotEqualTo(true);
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assertThat(Files.isReadable(path)).isFalse();
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assertThat(Files.isWritable(path)).as("foo").isEqualTo(true);
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assertThat(Files.isWritable(path)).isNotEqualTo(false);
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assertThat(Files.isWritable(path)).isTrue();
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assertThat(Files.isWritable(path)).as("foo").isEqualTo(false);
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assertThat(Files.isWritable(path)).isNotEqualTo(true);
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assertThat(Files.isWritable(path)).isFalse();
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assertThat(Files.isExecutable(path)).as("foo").isEqualTo(true);
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assertThat(Files.isExecutable(path)).isNotEqualTo(false);
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assertThat(Files.isExecutable(path)).isTrue();
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assertThat(Files.isExecutable(path)).as("foo").isEqualTo(false);
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assertThat(Files.isExecutable(path)).isNotEqualTo(true);
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assertThat(Files.isExecutable(path)).isFalse();
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assertThat(Files.isDirectory(path)).as("foo").isEqualTo(true);
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assertThat(Files.isDirectory(path)).isNotEqualTo(false);
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assertThat(Files.isDirectory(path)).isTrue();
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assertThat(Files.isDirectory(path)).as("foo").isEqualTo(false);
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assertThat(Files.isDirectory(path)).isNotEqualTo(true);
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assertThat(Files.isDirectory(path)).isFalse();
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assertThat(Files.isRegularFile(path)).as("foo").isEqualTo(true);
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assertThat(Files.isRegularFile(path)).isNotEqualTo(false);
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assertThat(Files.isRegularFile(path)).isTrue();
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assertThat(Files.isRegularFile(path)).as("foo").isEqualTo(false);
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assertThat(Files.isRegularFile(path)).isNotEqualTo(true);
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assertThat(Files.isRegularFile(path)).isFalse();
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assertThat(Files.isSymbolicLink(path)).as("foo").isEqualTo(true);
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assertThat(Files.isSymbolicLink(path)).isNotEqualTo(false);
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assertThat(Files.isSymbolicLink(path)).isTrue();
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assertThat(Files.isSymbolicLink(path)).as("foo").isEqualTo(false);
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assertThat(Files.isSymbolicLink(path)).isNotEqualTo(true);
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assertThat(Files.isSymbolicLink(path)).isFalse();
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assertThat(Files.exists(path)).as("foo").isEqualTo(true);
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assertThat(Files.exists(path)).isNotEqualTo(false);
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assertThat(Files.exists(path)).isTrue();
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assertThat(Files.exists(path)).as("foo").isEqualTo(false);
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assertThat(Files.exists(path)).isNotEqualTo(true);
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assertThat(Files.exists(path)).isFalse();
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assertThat(Files.notExists(path)).as("foo").isEqualTo(true);
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assertThat(Files.notExists(path)).isNotEqualTo(false);
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assertThat(Files.notExists(path)).isTrue();
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assertThat(Files.notExists(path)).as("foo").isEqualTo(false);
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assertThat(Files.notExists(path)).isNotEqualTo(true);
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assertThat(Files.notExists(path)).isFalse();
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assertThat(Files.list(path)).isEmpty();
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assertThat(Files.list(path)).isNotEmpty();
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assertThat(Files.readAllBytes(path)).isEqualTo(new byte[1]);
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assertThat(Files.readAllLines(path)).containsExactly("foo");
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assertThat(Files.lines(path)).containsExactly("foo");
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assertThat(path.getName()).endsWith(".foo"); // could be turned into .hasExtension("foo"), but not always.
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assertThat(path.getName()).as("foo").isEqualTo("foo").as("bar").isEqualTo("bar");
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org.junit.Assert.assertThat(path, null);
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fail("oh no!");
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}
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}
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