/*
 *
 * Copyright 2002-2004 The Ant-Contrib project
 *
 * 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
 *
 * http://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 net.sf.antcontrib.cpptasks;

import java.io.File;
import java.io.IOException;
import net.sf.antcontrib.cpptasks.compiler.CommandLineCompilerConfiguration;
import net.sf.antcontrib.cpptasks.compiler.Compiler;
import net.sf.antcontrib.cpptasks.compiler.LinkType;
import net.sf.antcontrib.cpptasks.devstudio.DevStudioCCompiler;
import net.sf.antcontrib.cpptasks.gcc.GccCCompiler;
import net.sf.antcontrib.cpptasks.types.CompilerArgument;
import net.sf.antcontrib.cpptasks.types.ConditionalPath;
import net.sf.antcontrib.cpptasks.types.DefineArgument;
import net.sf.antcontrib.cpptasks.types.DefineSet;
import net.sf.antcontrib.cpptasks.types.IncludePath;
import net.sf.antcontrib.cpptasks.types.SystemIncludePath;
import net.sf.antcontrib.cpptasks.types.UndefineArgument;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;

/**
 * Tests for CompilerDef.
 */
public final class TestCompilerDef
    extends TestProcessorDef {
  /**
   * Constructor.
   *
   * @param name
   *            test name
   */
  public TestCompilerDef(final String name) {
    super(name);
  }

  /**
   * Creates a new processor.
   *
   * @return new processor
   */
  protected ProcessorDef create() {
    return new CompilerDef();
  }

  /**
   * This method tests CompilerDef.getActiveDefines.
   *
   * A CompilerDef is created similar to what would be created for
   *
   * <cc><defineset><define name="DEBUG" if="debug"/> <define name="NDEBUG"
   * unless="debug"/> </defineset> </cc>
   *
   * Then getActiveDefines is called for a project without and with the
   * "debug" property defined. Return value from getActiveDefines should
   * contain one member
   */
  public void testGetActiveDefines() {
    Project project = new org.apache.tools.ant.Project();
    CompilerDef def = new CompilerDef();
    def.setProject(project);
    DefineSet defset = new DefineSet();
    DefineArgument arg1 = new DefineArgument();
    arg1.setName("DEBUG");
    arg1.setIf("debug");
    defset.addDefine(arg1);
    DefineArgument arg2 = new DefineArgument();
    arg2.setName("NDEBUG");
    arg2.setUnless("debug");
    defset.addDefine(arg2);
    def.addConfiguredDefineset(defset);
    //
    //  Evaluate without "debug" set
    //
    UndefineArgument[] activeArgs = def.getActiveDefines();
    assertEquals(1, activeArgs.length);
    assertEquals("NDEBUG", activeArgs[0].getName());
    //
    //  Set the "debug" property
    //
    project.setProperty("debug", "");
    activeArgs = def.getActiveDefines();
    assertEquals(1, activeArgs.length);
    assertEquals("DEBUG", activeArgs[0].getName());
  }

  /**
   * This method tests CompilerDef.getActiveIncludePath.
   *
   * A CompilerDef is created similar to what would be created for
   *
   * <cc><includepath location=".." if="debug"/> </cc>
   *
   * and is evaluate for a project without and without "debug" set
   */
  public void testGetActiveIncludePaths() {
    Project project = new org.apache.tools.ant.Project();
    CompilerDef def = new CompilerDef();
    def.setProject(project);
    ConditionalPath path = def.createIncludePath();
    path.setLocation(new File(".."));
    path.setIf("debug");
    //
    //  Evaluate without "debug" set
    //
    String[] includePaths = def.getActiveIncludePaths();
    assertEquals(0, includePaths.length);
    //
    //  Set the "debug" property
    //
    project.setProperty("debug", "");
    includePaths = def.getActiveIncludePaths();
    assertEquals(1, includePaths.length);
  }

  /**
   * Tests that setting classname to the Gcc compiler is effective.
   */
  public void testGetGcc() {
    CompilerDef compilerDef = (CompilerDef) create();
    compilerDef.setClassname("net.sf.antcontrib.cpptasks.gcc.GccCCompiler");
    Compiler comp = (Compiler) compilerDef.getProcessor();
    assertNotNull(comp);
    assertSame(GccCCompiler.getInstance(), comp);
  }

  /**
   * Tests that setting classname to the MSVC compiler is effective.
   */
  public void testGetMSVC() {
    CompilerDef compilerDef = (CompilerDef) create();
    compilerDef
        .setClassname(
      "net.sf.antcontrib.cpptasks.devstudio.DevStudioCCompiler");
    Compiler comp = (Compiler) compilerDef.getProcessor();
    assertNotNull(comp);
    assertSame(DevStudioCCompiler.getInstance(), comp);
  }

  /**
   * Tests that setting classname to an bogus class name results in a
   * BuildException.
   */
  public void testUnknownClass() {
    CompilerDef compilerDef = (CompilerDef) create();
    try {
      compilerDef
          .setClassname("net.sf.antcontrib.cpptasks.bogus.BogusCompiler");
    } catch (BuildException ex) {
      return;
    }
    fail("Exception not thrown");
  }

  /**
   * Test that setting classname to a class that doesn't support Compiler
   * throws a BuildException.
   *
   */
  public void testWrongType() {
    CompilerDef compilerDef = (CompilerDef) create();
    try {
      compilerDef
          .setClassname("net.sf.antcontrib.cpptasks.devstudio.DevStudioLinker");
    } catch (BuildException ex) {
      return;
    }
    fail("Exception not thrown");
  }

  /**
   * Gets the command line arguments that precede filenames.
   *
   * @param processor
   *            processor under test
   * @return command line arguments
   */
  protected String[] getPreArguments(final ProcessorDef processor) {
    return ((CommandLineCompilerConfiguration) getConfiguration(processor))
        .getPreArguments();
  }

  /**
   * Tests if a fileset enclosed in the base compiler definition is effective.
   *
   * @throws IOException
   *             if unable to create or delete a temporary file
   */
  public void testExtendsFileSet() throws IOException {
    super.testExtendsFileSet(File.createTempFile("cpptaskstest", ".cpp"));
  }

  /**
   * Tests if the rebuild attribute of the base compiler definition is
   * effective.
   *
   */
  public void testExtendsRebuild() {
    testExtendsRebuild(new CompilerDef());
  }

  /**
   * Tests that compilerarg's contained in the base compiler definition are
   * effective.
   */
  public void testExtendsCompilerArgs() {
    CompilerDef baseLinker = new CompilerDef();
    CompilerArgument linkerArg = new CompilerArgument();
    linkerArg.setValue("/base");
    baseLinker.addConfiguredCompilerArg(linkerArg);
    CompilerDef extendedLinker = (CompilerDef) createExtendedProcessorDef(
        baseLinker);
    String[] preArgs = getPreArguments(extendedLinker);
    assertEquals(2, preArgs.length);
    assertEquals("/base", preArgs[0]);
  }

  /**
   * Tests that defineset's contained in the base compiler definition are
   * effective.
   */
  public void testExtendsDefineSet() {
    CompilerDef baseCompiler = new CompilerDef();
    DefineSet defSet = new DefineSet();
    DefineArgument define = new DefineArgument();
    define.setName("foo");
    define.setValue("bar");
    defSet.addDefine(define);
    baseCompiler.addConfiguredDefineset(defSet);
    CompilerDef extendedCompiler = (CompilerDef) createExtendedProcessorDef(
        baseCompiler);
    String[] preArgs = getPreArguments(extendedCompiler);
    assertEquals(2, preArgs.length);
    assertEquals("-Dfoo=bar", preArgs[1]);
  }

  /**
   * Tests that includepath's contained in the base compiler definition are
   * effective.
   */
  public void testExtendsIncludePath() {
    CompilerDef baseCompiler = new CompilerDef();
    CompilerDef extendedCompiler = (CompilerDef) createExtendedProcessorDef(
        baseCompiler);
    IncludePath path = baseCompiler.createIncludePath();
    path.setPath("/tmp");
    String[] preArgs = getPreArguments(extendedCompiler);
    assertEquals(2, preArgs.length);
    assertEquals("-I", preArgs[1].substring(0, 2));
  }

  /**
   * Tests that sysincludepath's contained in the base compiler definition are
   * effective.
   */
  public void testExtendsSysIncludePath() {
    CompilerDef baseCompiler = new CompilerDef();
    CompilerDef extendedCompiler = (CompilerDef) createExtendedProcessorDef(
        baseCompiler);
    SystemIncludePath path = baseCompiler.createSysIncludePath();
    path.setPath("/tmp");
    String[] preArgs = getPreArguments(extendedCompiler);
    assertEquals(2, preArgs.length);
    assertEquals("-I", preArgs[1].substring(0, 2));
  }

  /**
   * Sets the name attribute.
   *
   * @param compiler
   *            compiler under test
   * @param name
   *            compiler name
   */
  private static void setCompilerName(final CompilerDef compiler,
                                      final String name) {
    CompilerEnum compilerName = new CompilerEnum();
    compilerName.setValue(name);
    compiler.setName(compilerName);
  }

  /**
   * Tests that the extend attribute of the base compiler definition is
   * effective.
   */
  public void testExtendsExceptions() {
    CompilerDef baseCompiler = new CompilerDef();
    baseCompiler.setExceptions(true);
    CompilerDef extendedCompiler = (CompilerDef) createExtendedProcessorDef(
        baseCompiler);
    setCompilerName(extendedCompiler, "msvc");
    String[] preArgs = getPreArguments(extendedCompiler);
    assertEquals("/EHsc", preArgs[2]);
  }

  /**
   * Tests that the multithread attribute of the base compiler definition is
   * effective.
   */
  public void testExtendsMultithreaded() {
    CompilerDef baseCompiler = new CompilerDef();
    baseCompiler.setMultithreaded(false);
    CompilerDef extendedCompiler = (CompilerDef) createExtendedProcessorDef(
        baseCompiler);
    setCompilerName(extendedCompiler, "msvc");
    CCTask cctask = new CCTask();
    LinkType linkType = new LinkType();
    linkType.setStaticRuntime(true);
    CommandLineCompilerConfiguration config = (CommandLineCompilerConfiguration)
        extendedCompiler
        .createConfiguration(cctask, linkType, null, null, null);
    String[] preArgs = config.getPreArguments();
    assertEquals("/ML", preArgs[3]);
  }

  /**
   * Tests that the name attribute in the base compiler is effective.
   */
  public void testExtendsName() {
    CompilerDef baseCompiler = new CompilerDef();
    setCompilerName(baseCompiler, "msvc");
    CompilerDef extendedCompiler = (CompilerDef) createExtendedProcessorDef(
        baseCompiler);
    extendedCompiler.setExceptions(true);
    String[] preArgs = getPreArguments(extendedCompiler);
    assertEquals("/EHsc", preArgs[2]);
  }

  /**
   * Tests that the classname attribute in the base compiler is effective.
   */
  public void testExtendsClassname() {
    CompilerDef baseCompiler = new CompilerDef();
    baseCompiler
        .setClassname(
      "net.sf.antcontrib.cpptasks.devstudio.DevStudioCCompiler");
    CompilerDef extendedCompiler = (CompilerDef) createExtendedProcessorDef(
        baseCompiler);
    extendedCompiler.setExceptions(true);
    String[] preArgs = getPreArguments(extendedCompiler);
    assertEquals("/EHsc", preArgs[2]);
  }
}