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Migrate Google Truth to AssertJ

org.openrewrite.java.testing.truth.MigrateTruthToAssertJ

Migrate Google Truth assertions to AssertJ assertions.

Tags​

Recipe source​

GitHub, Issue Tracker, Maven Central

info

This recipe is composed of more than one recipe. If you want to customize the set of recipes this is composed of, you can find and copy the GitHub source for the recipe from the link above.

This recipe is available under the Moderne Source Available License.

Definition​

  • Add Gradle or Maven dependency
    • groupId: org.assertj
    • artifactId: assertj-core
    • version: 3.x
    • onlyIfUsing: com.google.common.truth.*
    • acceptTransitive: true
  • Convert Truth assert_() to AssertJ
  • Convert Truth assertWithMessage to AssertJ
  • Convert Truth Throwable assertions to AssertJ
  • Migrate Truth custom subjects to AssertJ
  • Change method name
    • methodPattern: com.google.common.truth..* hasLength(int)
    • newMethodName: hasSize
  • Change method name
    • methodPattern: com.google.common.truth.StringSubject containsMatch(..)
    • newMethodName: matches
  • Change method name
    • methodPattern: com.google.common.truth.StringSubject doesNotContainMatch(..)
    • newMethodName: doesNotMatch
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.StringSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractStringAssert
  • Change method name
    • methodPattern: com.google.common.truth.ComparableSubject isAtLeast(..)
    • newMethodName: isGreaterThanOrEqualTo
  • Change method name
    • methodPattern: com.google.common.truth.ComparableSubject isAtMost(..)
    • newMethodName: isLessThanOrEqualTo
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.ComparableSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractComparableAssert
  • Change method name
    • methodPattern: com.google.common.truth.Subject isSameInstanceAs(..)
    • newMethodName: isSameAs
  • Change method name
    • methodPattern: com.google.common.truth.Subject isNotSameInstanceAs(..)
    • newMethodName: isNotSameAs
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.Subject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractObjectAssert
  • Change method name
    • methodPattern: com.google.common.truth.IterableSubject containsExactlyElementsIn(..)
    • newMethodName: containsExactlyElementsOf
  • Change method name
    • methodPattern: com.google.common.truth.IterableSubject containsAnyIn(..)
    • newMethodName: containsAnyElementsOf
  • Change method name
    • methodPattern: com.google.common.truth.IterableSubject containsNoneIn(..)
    • newMethodName: doesNotContainAnyElementsOf
  • Change method name
    • methodPattern: com.google.common.truth.IterableSubject containsAllIn(..)
    • newMethodName: containsAll
  • Change method name
    • methodPattern: com.google.common.truth.IterableSubject containsAllOf(..)
    • newMethodName: contains
  • Change method name
    • methodPattern: com.google.common.truth.IterableSubject containsNoneOf(..)
    • newMethodName: doesNotContain
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.IterableSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractIterableAssert
  • Change method name
    • methodPattern: com.google.common.truth.OptionalSubject hasValue(..)
    • newMethodName: contains
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.OptionalSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractOptionalAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.GuavaOptionalSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractOptionalAssert
  • Change method name
    • methodPattern: org.assertj.core.api.AbstractMapAssert containsEntries(..)
    • newMethodName: contains
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.MapSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractMapAssert
  • Change method name
    • methodPattern: com.google.common.truth.ObjectArraySubject asList()
    • newMethodName: containsExactly
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.ObjectArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractObjectArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.BooleanSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractBooleanAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.IntegerSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractIntegerAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.LongSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractLongAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.DoubleSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractDoubleAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.FloatSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractFloatAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.BigDecimalSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractBigDecimalAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveBooleanArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractBooleanArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveIntArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractIntArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveLongArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractLongArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveDoubleArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractDoubleArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveFloatArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractFloatArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveByteArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractByteArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveCharArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractCharArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PrimitiveShortArraySubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractShortArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.Truth8
    • newFullyQualifiedTypeName: org.assertj.core.api.Assertions
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.OptionalIntSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractOptionalIntAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.OptionalLongSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractOptionalLongAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.OptionalDoubleSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractOptionalDoubleAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.StreamSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.ListAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.IntStreamSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractIntArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.LongStreamSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractLongArrayAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.PathSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractPathAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.ClassSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractClassAssert
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.ThrowableSubject
    • newFullyQualifiedTypeName: org.assertj.core.api.AbstractThrowableAssert
  • Remove unused imports
  • Change type
    • oldFullyQualifiedTypeName: com.google.common.truth.Truth
    • newFullyQualifiedTypeName: org.assertj.core.api.Assertions
  • Remove a Gradle or Maven dependency
    • groupId: com.google.truth
    • artifactId: truth

Used by​

This recipe is used as part of the following composite recipes:

Examples​

Example 1​

MigrateTruthToAssertJTest#basicAssertThatConversion

Before​
import static com.google.common.truth.Truth.assertThat;

class Test {
    void test() {
        String actual = "hello";
        assertThat(actual).isEqualTo("hello");
        assertThat(actual).isNotEqualTo("world");
        assertThat(actual).isNotNull();
        assertThat(actual).contains("ell");
    }
}
After​
import static org.assertj.core.api.Assertions.assertThat;

class Test {
    void test() {
        String actual = "hello";
        assertThat(actual).isEqualTo("hello");
        assertThat(actual).isNotEqualTo("world");
        assertThat(actual).isNotNull();
        assertThat(actual).contains("ell");
    }
}
Example 2​

TruthThrowableAssertionsTest#hasMessageThatContains

Before​
import static com.google.common.truth.Truth.assertThat;

class Test {
    void test() {
        Exception e = new IllegalArgumentException("Invalid argument provided");
        assertThat(e).hasMessageThat().contains("Invalid");
    }
}
After​
import static org.assertj.core.api.Assertions.assertThat;

class Test {
    void test() {
        Exception e = new IllegalArgumentException("Invalid argument provided");
        assertThat(e).hasMessageContaining("Invalid");
    }
}
Example 3​

MigrateTruthToAssertJTest#basicAssertThatConversion

Before​
import static com.google.common.truth.Truth.assertThat;

class Test {
    void test() {
        String actual = "hello";
        assertThat(actual).isEqualTo("hello");
        assertThat(actual).isNotEqualTo("world");
        assertThat(actual).isNotNull();
        assertThat(actual).contains("ell");
    }
}
After​
import static org.assertj.core.api.Assertions.assertThat;

class Test {
    void test() {
        String actual = "hello";
        assertThat(actual).isEqualTo("hello");
        assertThat(actual).isNotEqualTo("world");
        assertThat(actual).isNotNull();
        assertThat(actual).contains("ell");
    }
}
Example 4​

TruthThrowableAssertionsTest#hasMessageThatContains

Before​
import static com.google.common.truth.Truth.assertThat;

class Test {
    void test() {
        Exception e = new IllegalArgumentException("Invalid argument provided");
        assertThat(e).hasMessageThat().contains("Invalid");
    }
}
After​
import static org.assertj.core.api.Assertions.assertThat;

class Test {
    void test() {
        Exception e = new IllegalArgumentException("Invalid argument provided");
        assertThat(e).hasMessageContaining("Invalid");
    }
}

Usage​

This recipe has no required configuration options. It can be activated by adding a dependency on org.openrewrite.recipe:rewrite-testing-frameworks in your build file or by running a shell command (in which case no build changes are needed):

  1. Add the following to your build.gradle file:
build.gradle
plugins {
    id("org.openrewrite.rewrite") version("latest.release")
}

rewrite {
    activeRecipe("org.openrewrite.java.testing.truth.MigrateTruthToAssertJ")
    setExportDatatables(true)
}

repositories {
    mavenCentral()
}

dependencies {
    rewrite("org.openrewrite.recipe:rewrite-testing-frameworks:3.19.0")
}
  1. Run gradle rewriteRun to run the recipe.

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Data Tables​

Source files that had results​

org.openrewrite.table.SourcesFileResults

Source files that were modified by the recipe run.

Column NameDescription
Source path before the runThe source path of the file before the run. null when a source file was created during the run.
Source path after the runA recipe may modify the source path. This is the path after the run. null when a source file was deleted during the run.
Parent of the recipe that made changesIn a hierarchical recipe, the parent of the recipe that made a change. Empty if this is the root of a hierarchy or if the recipe is not hierarchical at all.
Recipe that made changesThe specific recipe that made a change.
Estimated time savingAn estimated effort that a developer to fix manually instead of using this recipe, in unit of seconds.
CycleThe recipe cycle in which the change was made.