* minimum element-set for a valid project pom


Maven super model

 Inheritance is recursive in Maven but there is a special model which is the implicit super parent in the lineage
 of models you may specify:

 all of the models that you specify are collected to produce a lineage and then the super model is place at
 the top of that lineage to provide default values.

                "Expected 'UnresolvableModelException' not thrown.");
        assertEquals("The requested parent version range '[1,)' does not specify an upper bound", e.getMessage());
    }

    @Test
    void testResolveParentSuccessfullyResolvesExistingParentWithoutRange() throws Exception {
        final Parent parent = new Parent();

                () -> newModelResolver().resolveModel(session, parent, new AtomicReference<>()),
                "Expected 'ModelResolverException' not thrown.");
        assertEquals("The requested version range '[1,)' does not specify an upper bound", e.getMessage());
    }

    @Test
    void testResolveParentSuccessfullyResolvesExistingParentWithoutRange() throws Exception {
        final Parent parent = Parent.newBuilder()

     */
    public Lifecycle get(String phase) {
        return getPhaseToLifecycleMap().get(phase);
    }

    /**
     * We use this to map all phases to the lifecycle that contains it. This is used so that a user can specify the
     * phase they want to execute and we can easily determine what lifecycle we need to run.
     *
     * @return A map of lifecycles, indexed on id
     */
    public Map<String, Lifecycle> getPhaseToLifecycleMap() {

            if (properties != null) {
                // We will attempt to get nab a property as a way to specify a parameter
                // to a plugin. My particular case here is allowing the surefire plugin
                // to run a single test so I want to specify that class on the cli as
                // a parameter.

                value = properties.getProperty(expression);
            }

    @Test
    void testFileSource() {
        NullPointerException e = assertThrows(
                NullPointerException.class,
                () -> new FileSource((File) null),
                "Should fail, since you must specify a file");
        assertEquals("file cannot be null", e.getMessage());
    }

    @Test
    void testGetInputStream() throws Exception {
        File txtFile = new File("target/test-classes/source.txt");

          <type>String</type>
          <defaultValue>per-lookup</defaultValue>
          <description>Specify the instantiation strategy.</description>
        </field>
        <field>
          <name>executionStrategy</name>
          <version>1.0.0/1.1.0</version>
          <type>String</type>
          <description>
            Specify the execution strategy: {@code once-per-session}, {@code always}.
          </description>

                throw new UnresolvableModelException(
                        String.format(
                                "The requested parent version range '%s' does not specify an upper bound",
                                parent.getVersion()),
                        parent.getGroupId(),
                        parent.getArtifactId(),
                        parent.getVersion());

                } else if (unknown) {
                    // More than one filtered value, and we don't know how to handle at least one of them.
                    // TODO: add a plugin mechanism for allowing plugin to specify their selection algorithm.
                    return Optional.empty();
                }
            }
        }
        if (classes & modules) {
            selected = getPathType(path);
        }

                }
            }

            messageBuffer.append("Inside the definition for plugin '");
            messageBuffer.append(mojo.getPluginDescriptor().getArtifactId());
            messageBuffer.append("', specify the following:").append(LS).append(LS);
            messageBuffer.append("<configuration>").append(LS).append("  ...").append(LS);
            messageBuffer.append("  <").append(param.getName()).append('>');