With.java

package com.github.dakusui.actionunit.actions;

import com.github.dakusui.actionunit.core.Action;
import com.github.dakusui.actionunit.core.Context;

import java.util.Formatter;
import java.util.Optional;
import java.util.function.Consumer;
import java.util.function.Function;

import static com.github.dakusui.actionunit.core.ActionSupport.simple;
import static com.github.dakusui.actionunit.core.context.FormattableConsumer.nopConsumer;
import static com.github.dakusui.actionunit.utils.InternalUtils.toStringIfOverriddenOrNoname;
import static com.github.dakusui.printables.PrintableFunctionals.*;
import static java.util.Objects.requireNonNull;

/**
 * An interface to access a context variable safely.
 * An instance of this interface corresponds to single context variable.
 *
 * @param <V> A type of variable through which this action interacts with another.
 * @see Context
 */
public interface With<V> extends Contextful<V> {
  /**
   * Returns a "close" action which takes care of "clean up"
   *
   * @return A "close" action.
   */
  Optional<Action> close();

  @Override
  default void accept(Visitor visitor) {
    visitor.visit(this);
  }

  @Override
  default void formatTo(Formatter formatter, int flags, int width, int precision) {
    formatter.format("with:" + variableName() + ":" + toStringIfOverriddenOrNoname(valueSource()));
  }

  class Builder<V> extends Contextful.Builder<Builder<V>, With<V>, V, V> {

    public Builder(String variableName, Function<Context, V> function) {
      super(variableName, function);
    }

    /**
     * Creates an action that updates the context variable.
     * A current value of the context variable is given to the `function` and the result
     * of the function is written back to the context.
     *
     * @param function A function to compute a new value of the context variable.
     * @return An action that updates the context variable.
     */
    public Action updateContextVariableWith(Function<V, V> function) {
      return simple(
          "update:" + variableName() + "*",
          printableConsumer((Context c) -> variableUpdateFunction(function).apply(c)).describe(toStringIfOverriddenOrNoname(function)));
    }


    public With<V> build() {
      return build(nopConsumer());
    }

    public With<V> build(Consumer<V> finisher) {
      return new Impl<>(this.variableName(), this.internalVariableName(), this.valueSource(), this.action(), finisher);
    }

    public <W> Builder<W> nest(Function<V, W> function) {
      return new Builder<>(nextVariableName(variableName()), function(function));
    }
    protected static String nextVariableName(String variableName) {
      requireNonNull(variableName);
      if (variableName.length() == 1 && 'a' <= variableName.charAt(0) && variableName.charAt(0) <= 'z')
        return Character.toString((char) (variableName.charAt(0) + 1));
      if (variableName.matches(".*_[1-9][0-9]*$")) {
        int index = Integer.parseInt(variableName.replaceAll(".*_", "")) + 1;
        return variableName.replaceAll("_[1-9][0-9]*$", "_" + index);
      }
      return variableName + "_1";
    }
    private Function<Context, V> variableUpdateFunction(Function<V, V> function) {
      return printableFunction(
          (Context context) -> {
            V ret = function.apply(resolveValue(context));
            context.assignTo(internalVariableName(), ret);
            return ret;
          })
          .describe(toStringIfOverriddenOrNoname(function));
    }

    private static class Impl<V> extends Base<V, V> implements With<V> {
      private final Action end;

      public Impl(String variableName, String internalVariableName, Function<Context, V> valueSource, Action action, Consumer<V> finisher) {
        super(variableName, internalVariableName, valueSource, action);
        this.end = simple(String.format("done:%s", finisher),
            printableConsumer((Context context) -> {
              V variable = context.valueOf(internalVariableName);
              context.unassign(internalVariableName); // Un-assign first. Otherwise, finisher may fail.
              if (finisher != null)
                finisher.accept(variable);
            }).describe(String.format("cleanUp:%s", variableName)));
      }

      @Override
      public Optional<Action> close() {
        return Optional.ofNullable(end);
      }

    }
  }
}



















Active mutators

CONDITIONALS_BOUNDARY
EMPTY_RETURNS
FALSE_RETURNS
INCREMENTS
INVERT_NEGS
MATH
NEGATE_CONDITIONALS
NULL_RETURNS
PRIMITIVE_RETURNS
TRUE_RETURNS
VOID_METHOD_CALLS

Tests examined

com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_2(com.github.dakusui.actionunit.ut.actions.WithTest) (0 ms)
com.github.dakusui.actionunit.ut.actions.ForEachTest.printActionTree_6(com.github.dakusui.actionunit.ut.actions.ForEachTest) (20 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_4(com.github.dakusui.actionunit.ut.actions.WithTest) (0 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree(com.github.dakusui.actionunit.ut.actions.WithTest) (1 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_3(com.github.dakusui.actionunit.ut.actions.WithTest) (1 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.givenWithAction_whenPerform(com.github.dakusui.actionunit.ut.actions.WithTest) (28 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_6(com.github.dakusui.actionunit.ut.actions.WithTest) (1 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.givenWithAction_whenPerform2(com.github.dakusui.actionunit.ut.actions.WithTest) (4 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.givenWithAction_whenPerform3(com.github.dakusui.actionunit.ut.actions.WithTest) (1 ms)
com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_5(com.github.dakusui.actionunit.ut.actions.WithTest) (1 ms)

Report generated by PIT 1.7.3

1		package com.github.dakusui.actionunit.actions;
2
3		import com.github.dakusui.actionunit.core.Action;
4		import com.github.dakusui.actionunit.core.Context;
5
6		import java.util.Formatter;
7		import java.util.Optional;
8		import java.util.function.Consumer;
9		import java.util.function.Function;
10
11		import static com.github.dakusui.actionunit.core.ActionSupport.simple;
12		import static com.github.dakusui.actionunit.core.context.FormattableConsumer.nopConsumer;
13		import static com.github.dakusui.actionunit.utils.InternalUtils.toStringIfOverriddenOrNoname;
14		import static com.github.dakusui.printables.PrintableFunctionals.*;
15		import static java.util.Objects.requireNonNull;
16
17		/**
18		* An interface to access a context variable safely.
19		* An instance of this interface corresponds to single context variable.
20		*
21		* @param <V> A type of variable through which this action interacts with another.
22		* @see Context
23		*/
24		public interface With<V> extends Contextful<V> {
25		/**
26		* Returns a "close" action which takes care of "clean up"
27		*
28		* @return A "close" action.
29		*/
30		Optional<Action> close();
31
32		@Override
33		default void accept(Visitor visitor) {
34	1 1. accept : removed call to com/github/dakusui/actionunit/core/Action$Visitor::visit → KILLED	visitor.visit(this);
35		}
36
37		@Override
38		default void formatTo(Formatter formatter, int flags, int width, int precision) {
39		formatter.format("with:" + variableName() + ":" + toStringIfOverriddenOrNoname(valueSource()));
40		}
41
42		class Builder<V> extends Contextful.Builder<Builder<V>, With<V>, V, V> {
43
44		public Builder(String variableName, Function<Context, V> function) {
45		super(variableName, function);
46		}
47
48		/**
49		* Creates an action that updates the context variable.
50		* A current value of the context variable is given to the `function` and the result
51		* of the function is written back to the context.
52		*
53		* @param function A function to compute a new value of the context variable.
54		* @return An action that updates the context variable.
55		*/
56		public Action updateContextVariableWith(Function<V, V> function) {
57	1 1. updateContextVariableWith : replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::updateContextVariableWith → KILLED	return simple(
58		"update:" + variableName() + "*",
59		printableConsumer((Context c) -> variableUpdateFunction(function).apply(c)).describe(toStringIfOverriddenOrNoname(function)));
60		}
61
62
63		public With<V> build() {
64	1 1. build : replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::build → KILLED	return build(nopConsumer());
65		}
66
67		public With<V> build(Consumer<V> finisher) {
68	1 1. build : replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::build → KILLED	return new Impl<>(this.variableName(), this.internalVariableName(), this.valueSource(), this.action(), finisher);
69		}
70
71		public <W> Builder<W> nest(Function<V, W> function) {
72	1 1. nest : replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::nest → KILLED	return new Builder<>(nextVariableName(variableName()), function(function));
73		}
74		protected static String nextVariableName(String variableName) {
75		requireNonNull(variableName);
76	5 1. nextVariableName : changed conditional boundary → SURVIVED 2. nextVariableName : changed conditional boundary → SURVIVED 3. nextVariableName : negated conditional → SURVIVED 4. nextVariableName : negated conditional → SURVIVED 5. nextVariableName : negated conditional → SURVIVED	if (variableName.length() == 1 && 'a' <= variableName.charAt(0) && variableName.charAt(0) <= 'z')
77	2 1. nextVariableName : Replaced integer addition with subtraction → SURVIVED 2. nextVariableName : replaced return value with "" for com/github/dakusui/actionunit/actions/With$Builder::nextVariableName → SURVIVED	return Character.toString((char) (variableName.charAt(0) + 1));
78	1 1. nextVariableName : negated conditional → NO_COVERAGE	if (variableName.matches("._[1-9][0-9]$")) {
79	1 1. nextVariableName : Replaced integer addition with subtraction → NO_COVERAGE	int index = Integer.parseInt(variableName.replaceAll(".*_", "")) + 1;
80	1 1. nextVariableName : replaced return value with "" for com/github/dakusui/actionunit/actions/With$Builder::nextVariableName → NO_COVERAGE	return variableName.replaceAll("_[1-9][0-9]*$", "_" + index);
81		}
82	1 1. nextVariableName : replaced return value with "" for com/github/dakusui/actionunit/actions/With$Builder::nextVariableName → NO_COVERAGE	return variableName + "_1";
83		}
84		private Function<Context, V> variableUpdateFunction(Function<V, V> function) {
85	1 1. variableUpdateFunction : replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::variableUpdateFunction → KILLED	return printableFunction(
86		(Context context) -> {
87		V ret = function.apply(resolveValue(context));
88		context.assignTo(internalVariableName(), ret);
89	1 1. lambda$variableUpdateFunction$1 : replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::lambda$variableUpdateFunction$1 → SURVIVED	return ret;
90		})
91		.describe(toStringIfOverriddenOrNoname(function));
92		}
93
94		private static class Impl<V> extends Base<V, V> implements With<V> {
95		private final Action end;
96
97		public Impl(String variableName, String internalVariableName, Function<Context, V> valueSource, Action action, Consumer<V> finisher) {
98		super(variableName, internalVariableName, valueSource, action);
99		this.end = simple(String.format("done:%s", finisher),
100		printableConsumer((Context context) -> {
101		V variable = context.valueOf(internalVariableName);
102	1 1. lambda$new$0 : removed call to com/github/dakusui/actionunit/core/Context::unassign → SURVIVED	context.unassign(internalVariableName); // Un-assign first. Otherwise, finisher may fail.
103	1 1. lambda$new$0 : negated conditional → SURVIVED	if (finisher != null)
104	1 1. lambda$new$0 : removed call to java/util/function/Consumer::accept → SURVIVED	finisher.accept(variable);
105		}).describe(String.format("cleanUp:%s", variableName)));
106		}
107
108		@Override
109		public Optional<Action> close() {
110	1 1. close : replaced return value with Optional.empty for com/github/dakusui/actionunit/actions/With$Builder$Impl::close → SURVIVED	return Optional.ofNullable(end);
111		}
112
113		}
114		}
115		}
		Mutations
34		1.1 Location : accept Killed by : com.github.dakusui.actionunit.ut.actions.WithTest.givenWithAction_whenPerform2(com.github.dakusui.actionunit.ut.actions.WithTest) removed call to com/github/dakusui/actionunit/core/Action$Visitor::visit → KILLED
57		1.1 Location : updateContextVariableWith Killed by : com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_6(com.github.dakusui.actionunit.ut.actions.WithTest) replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::updateContextVariableWith → KILLED
64		1.1 Location : build Killed by : com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree(com.github.dakusui.actionunit.ut.actions.WithTest) replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::build → KILLED
68		1.1 Location : build Killed by : com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_4(com.github.dakusui.actionunit.ut.actions.WithTest) replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::build → KILLED
72		1.1 Location : nest Killed by : com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_4(com.github.dakusui.actionunit.ut.actions.WithTest) replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::nest → KILLED
76		1.1 Location : nextVariableName Killed by : none changed conditional boundary → SURVIVED 2.2 Location : nextVariableName Killed by : none changed conditional boundary → SURVIVED 3.3 Location : nextVariableName Killed by : none negated conditional → SURVIVED 4.4 Location : nextVariableName Killed by : none negated conditional → SURVIVED 5.5 Location : nextVariableName Killed by : none negated conditional → SURVIVED
77		1.1 Location : nextVariableName Killed by : none Replaced integer addition with subtraction → SURVIVED 2.2 Location : nextVariableName Killed by : none replaced return value with "" for com/github/dakusui/actionunit/actions/With$Builder::nextVariableName → SURVIVED
78		1.1 Location : nextVariableName Killed by : none negated conditional → NO_COVERAGE
79		1.1 Location : nextVariableName Killed by : none Replaced integer addition with subtraction → NO_COVERAGE
80		1.1 Location : nextVariableName Killed by : none replaced return value with "" for com/github/dakusui/actionunit/actions/With$Builder::nextVariableName → NO_COVERAGE
82		1.1 Location : nextVariableName Killed by : none replaced return value with "" for com/github/dakusui/actionunit/actions/With$Builder::nextVariableName → NO_COVERAGE
85		1.1 Location : variableUpdateFunction Killed by : com.github.dakusui.actionunit.ut.actions.WithTest.printActionTree_6(com.github.dakusui.actionunit.ut.actions.WithTest) replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::variableUpdateFunction → KILLED
89		1.1 Location : lambda$variableUpdateFunction$1 Killed by : none replaced return value with null for com/github/dakusui/actionunit/actions/With$Builder::lambda$variableUpdateFunction$1 → SURVIVED
102		1.1 Location : lambda$new$0 Killed by : none removed call to com/github/dakusui/actionunit/core/Context::unassign → SURVIVED
103		1.1 Location : lambda$new$0 Killed by : none negated conditional → SURVIVED
104		1.1 Location : lambda$new$0 Killed by : none removed call to java/util/function/Consumer::accept → SURVIVED
110		1.1 Location : close Killed by : none replaced return value with Optional.empty for com/github/dakusui/actionunit/actions/With$Builder$Impl::close → SURVIVED

With.java

Mutations

Active mutators

Tests examined