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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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/*

 * @test

 * @summary Test of JShell#drop().

 * @build KullaTesting TestingInputStream

 * @run testng DropTest

 */

import jdk.jshell.DeclarationSnippet;

import jdk.jshell.PersistentSnippet;

import org.testng.annotations.Test;

import static jdk.jshell.Snippet.Status.*;

@Test

public class DropTest extends KullaTesting {

    public void testDrop() {

        PersistentSnippet var = varKey(assertEval("int x;"));

        PersistentSnippet method = methodKey(assertEval("int mu() { return x * 4; }"));

        PersistentSnippet clazz = classKey(assertEval("class C { String v() { return \"#\" + mu(); } }"));

        assertDrop(var,

                ste(var, VALID, DROPPED, true, null),

                ste(method, VALID, RECOVERABLE_DEFINED, false, var));

        assertVariables();

        assertMethods();

        assertClasses();

        assertActiveKeys();

        assertEval("int x = 10;", "10",

                ste(method, RECOVERABLE_DEFINED, VALID, false, MAIN_SNIPPET));

        PersistentSnippet c0 = varKey(assertEval("C c0 = new C();"));

        assertEval("c0.v();", "\"#40\"");

        assertEval("c.v();", "\"#40\"");

        assertEval("int mu() { return x * 3; }",

                ste(MAIN_SNIPPET, VALID, VALID, false, null),

                ste(method, VALID, OVERWRITTEN, false, MAIN_SNIPPET));

        assertEval("c.v();", "\"#30\"");

        assertEval("class C { String v() { return \"@\" + mu(); } }",

                ste(MAIN_SNIPPET, VALID, VALID, false, null),

                ste(clazz, VALID, OVERWRITTEN, false, MAIN_SNIPPET));

        assertEval("c0.v();", "\"@30\"");

        assertDrop(c0,

                ste(c0, VALID, DROPPED, true, null));

        assertEval("c = new C();");

        assertEval("c.v();", "\"@30\"");

        assertVariables();

        assertMethods();

        assertClasses();

        assertActiveKeys();

    }

    public void testDropImport() {

        PersistentSnippet imp = importKey(assertEval("import java.util.*;"));

        PersistentSnippet decl = varKey(

                assertEval("List<Integer> list = Arrays.asList(1, 2, 3);", "[1, 2, 3]"));

        assertEval("list;", "[1, 2, 3]");

        assertDrop(imp,

                DiagCheck.DIAG_OK,

                DiagCheck.DIAG_ERROR,

                ste(imp, VALID, DROPPED, true, null),

                ste(decl, VALID, RECOVERABLE_NOT_DEFINED, true, imp));

        assertDeclareFail("list;", "compiler.err.cant.resolve.location");

    }

    public void testDropVarToMethod() {

        PersistentSnippet x = varKey(assertEval("int x;"));

        DeclarationSnippet method = methodKey(assertEval("double mu() { return x * 4; }"));

        assertEval("x == 0;", "true");

        assertEval("mu() == 0.0;", "true");

        assertDrop(x,

                ste(x, VALID, DROPPED, true, null),

                ste(method, VALID, RECOVERABLE_DEFINED, false, x));

        assertUnresolvedDependencies1(method, RECOVERABLE_DEFINED, "variable x");

        assertEvalUnresolvedException("mu();", "mu", 1, 0);

        assertVariables();

        assertMethods();

        assertActiveKeys();

    }

    public void testDropMethodToMethod() {

        PersistentSnippet a = methodKey(assertEval("double a() { return 2; }"));

        DeclarationSnippet b = methodKey(assertEval("double b() { return a() * 10; }"));

        assertEval("double c() { return b() * 3; }");

        DeclarationSnippet d = methodKey(assertEval("double d() { return c() + 1000; }"));

        assertEval("d();", "1060.0");

        assertDrop(a,

                ste(a, VALID, DROPPED, true, null),

                ste(b, VALID, RECOVERABLE_DEFINED, false, a));

        assertUnresolvedDependencies1(b, RECOVERABLE_DEFINED, "method a()");

        assertUnresolvedDependencies(d, 0);

        assertEvalUnresolvedException("d();", "b", 1, 0);

        assertMethods();

        assertActiveKeys();

    }

    public void testDropClassToMethod() {

        PersistentSnippet c = classKey(assertEval("class C { int f() { return 7; } }"));

        DeclarationSnippet m = methodKey(assertEval("int m() { return new C().f(); }"));

        assertDrop(c,

                ste(c, VALID, DROPPED, true, null),

                ste(m, VALID, RECOVERABLE_DEFINED, false, c));

        assertUnresolvedDependencies1(m, RECOVERABLE_DEFINED, "class C");

        assertEvalUnresolvedException("m();", "m", 1, 0);

        assertActiveKeys();

    }

    public void testDropVarToClass() {

        PersistentSnippet x = varKey(assertEval("int x;"));

        DeclarationSnippet a = classKey(assertEval("class A { double a = 4 * x; }"));

        assertDrop(x,

                DiagCheck.DIAG_OK,

                DiagCheck.DIAG_ERROR,

                ste(x, VALID, DROPPED, true, null),

        assertVariables();

        assertActiveKeys();

    }

    public void testDropMethodToClass() {

        PersistentSnippet x = methodKey(assertEval("int x() { return 0; }"));

        DeclarationSnippet a = classKey(assertEval("class A { double a = 4 * x(); }"));

        assertDrop(x,

                DiagCheck.DIAG_OK,

                DiagCheck.DIAG_ERROR,

                ste(x, VALID, DROPPED, true, null),

        assertMethods();

        assertActiveKeys();

    }

    public void testDropClassToClass() {

        PersistentSnippet a = classKey(assertEval("class A {}"));

        PersistentSnippet b = classKey(assertEval("class B extends A {}"));

        PersistentSnippet c = classKey(assertEval("class C extends B {}"));

        PersistentSnippet d = classKey(assertEval("class D extends C {}"));

        assertDrop(a,

                DiagCheck.DIAG_OK,

                DiagCheck.DIAG_ERROR,

                ste(a, VALID, DROPPED, true, null),

                ste(b, VALID, RECOVERABLE_NOT_DEFINED, true, a),

                ste(c, VALID, RECOVERABLE_NOT_DEFINED, true, b),

                ste(d, VALID, RECOVERABLE_NOT_DEFINED, true, c));

        assertUnresolvedDependencies1((DeclarationSnippet) b, RECOVERABLE_NOT_DEFINED, "class A");

        assertDrop(c,

                DiagCheck.DIAG_OK,

                DiagCheck.DIAG_ERROR,

                ste(c, RECOVERABLE_NOT_DEFINED, DROPPED, false, null),

                ste(d, RECOVERABLE_NOT_DEFINED, RECOVERABLE_NOT_DEFINED, false, c));

        assertEval("interface A {}", null, null,

                DiagCheck.DIAG_OK, DiagCheck.DIAG_ERROR,

                ste(a, DROPPED, VALID, true, null),

                ste(b, RECOVERABLE_NOT_DEFINED, RECOVERABLE_NOT_DEFINED, false, MAIN_SNIPPET));

        assertClasses();

        assertActiveKeys();

    }

    public void testDropNoUpdate() {

        String as1 = "class A {}";

        String as2 = "class A extends java.util.ArrayList<Boolean> {}";

        PersistentSnippet a = classKey(assertEval(as1, added(VALID)));

        PersistentSnippet b = classKey(assertEval("class B extends A {}", added(VALID)));

        PersistentSnippet ax = classKey(assertEval(as2,

                ste(MAIN_SNIPPET, VALID, VALID, true, null),

                ste(a, VALID, OVERWRITTEN, false, MAIN_SNIPPET),

                ste(b, VALID, VALID, true, MAIN_SNIPPET)));

        ax = classKey(assertEval(as1,

                ste(MAIN_SNIPPET, VALID, VALID, true, null),

                ste(ax, VALID, OVERWRITTEN, false, MAIN_SNIPPET),

                ste(b, VALID, VALID, true, MAIN_SNIPPET)));

        assertDrop(b,

                ste(b, VALID, DROPPED, true, null));

        ax = classKey(assertEval(as2,

                ste(MAIN_SNIPPET, VALID, VALID, true, null),

                ste(ax, VALID, OVERWRITTEN, false, MAIN_SNIPPET)));

        assertEval(as1,

                ste(MAIN_SNIPPET, VALID, VALID, true, null),

                ste(ax, VALID, OVERWRITTEN, false, MAIN_SNIPPET));

    }

}