test/langtools/tools/javac/importscope/CompletionFailureDuringImport.java

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/**
 * @test
 * @bug 8131915
 * @summary Verify that CompletionFailure thrown during listing of import content is handled properly.
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.main
 * @build toolbox.ToolBox toolbox.JavacTask
 * @run main CompletionFailureDuringImport
 */

import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.List;

import toolbox.JavacTask;
import toolbox.Task;
import toolbox.ToolBox;

public class CompletionFailureDuringImport {
    public static void main(String... args) throws Exception {
        new CompletionFailureDuringImport().run();
    }

    ToolBox tb = new ToolBox();

    void run() throws Exception {
        new JavacTask(tb)
          .outdir(".")
          .sources("package p; public class Super { public static final int I = 0; }",
                   "package p; public class Sub extends Super { }")
          .run()
          .writeAll();

        Files.delete(Paths.get(".", "p", "Super.class"));

        doTest("import static p.Sub.*;",
               "",
               "Test.java:1:1: compiler.err.cant.access: p.Super, (compiler.misc.class.file.not.found: p.Super)",
               "1 error");
        doTest("import static p.Sub.I;",
               "",
               "Test.java:1:1: compiler.err.cant.access: p.Super, (compiler.misc.class.file.not.found: p.Super)",
               "1 error");
        doTest("import static p.Sub.*;",
               "int i = I;",
               "Test.java:1:1: compiler.err.cant.access: p.Super, (compiler.misc.class.file.not.found: p.Super)",
               "Test.java:1:52: compiler.err.cant.resolve.location: kindname.variable, I, , , (compiler.misc.location: kindname.class, Test, null)",
               "2 errors");
        doTest("import static p.Sub.I;",
               "int i = I;",
               "Test.java:1:1: compiler.err.cant.access: p.Super, (compiler.misc.class.file.not.found: p.Super)",
               "Test.java:1:52: compiler.err.cant.resolve.location: kindname.variable, I, , , (compiler.misc.location: kindname.class, Test, null)",
               "2 errors");
    }

    void doTest(String importText, String useText, String... expectedOutput) {
        List<String> log = new JavacTask(tb)
                .classpath(".")
                .sources(importText + " public class Test { " + useText + " }")
                .options("-XDrawDiagnostics")
                .run(Task.Expect.FAIL)
                .writeAll()
                .getOutputLines(Task.OutputKind.DIRECT);

        if (!log.equals(Arrays.asList(expectedOutput))) {
            throw new AssertionError("Unexpected output: " + log);
        }
    }
}