Add assertj refaster rules for map size asserts

Rules are based on the collection and iterable variants.

baseline-refaster-rules/src/main/java/com/palantir/baseline/refaster/AssertjMapHasSizeExactly.java

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+/*
+ * (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
+ *
+ * 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 com.palantir.baseline.refaster;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.google.errorprone.refaster.ImportPolicy;
+import com.google.errorprone.refaster.annotation.AfterTemplate;
+import com.google.errorprone.refaster.annotation.BeforeTemplate;
+import com.google.errorprone.refaster.annotation.UseImportPolicy;
+import java.util.Map;
+
+public final class AssertjMapHasSizeExactly<K, V> {
+
+    @BeforeTemplate
+    void before1(Map<K, V> things, int size) {
+        assertThat(things.size() == size).isTrue();
+    }
+
+    @BeforeTemplate
+    void before2(Map<K, V> things, int size) {
+        assertThat(things.size()).isEqualTo(size);
+    }
+
+    @AfterTemplate
+    @UseImportPolicy(ImportPolicy.STATIC_IMPORT_ALWAYS)
+    void after(Map<K, V> things, int size) {
+        assertThat(things).hasSize(size);
+    }
+}

baseline-refaster-rules/src/main/java/com/palantir/baseline/refaster/AssertjMapHasSizeExactlyWithDescription.java

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+/*
+ * (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
+ *
+ * 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 com.palantir.baseline.refaster;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.google.errorprone.refaster.ImportPolicy;
+import com.google.errorprone.refaster.annotation.AfterTemplate;
+import com.google.errorprone.refaster.annotation.BeforeTemplate;
+import com.google.errorprone.refaster.annotation.UseImportPolicy;
+import java.util.Map;
+
+public final class AssertjMapHasSizeExactlyWithDescription<K, V> {
+
+    @BeforeTemplate
+    void before1(Map<K, V> things, int size, String description) {
+        assertThat(things.size() == size).describedAs(description).isTrue();
+    }
+
+    @BeforeTemplate
+    void before2(Map<K, V> things, int size, String description) {
+        assertThat(things.size()).describedAs(description).isEqualTo(size);
+    }
+
+    @AfterTemplate
+    @UseImportPolicy(ImportPolicy.STATIC_IMPORT_ALWAYS)
+    void after(Map<K, V> things, int size, String description) {
+        assertThat(things).describedAs(description).hasSize(size);
+    }
+}

baseline-refaster-rules/src/main/java/com/palantir/baseline/refaster/AssertjMapIsEmpty.java

@@ -0,0 +1,59 @@
+/*
+ * (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
+ *
+ * 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 com.palantir.baseline.refaster;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.google.errorprone.refaster.ImportPolicy;
+import com.google.errorprone.refaster.annotation.AfterTemplate;
+import com.google.errorprone.refaster.annotation.BeforeTemplate;
+import com.google.errorprone.refaster.annotation.UseImportPolicy;
+import java.util.Map;
+
+public final class AssertjMapIsEmpty<K, V> {
+
+    @BeforeTemplate
+    void before1(Map<K, V> things) {
+        assertThat(things.size() == 0).isTrue();
+    }
+
+    @BeforeTemplate
+    void before2(Map<K, V> things) {
+        assertThat(things.isEmpty()).isTrue();
+    }
+
+    @BeforeTemplate
+    void before3(Map<K, V> things) {
+        assertThat(things.size()).isZero();
+    }
+
+    @BeforeTemplate
+    void before4(Map<K, V> things) {
+        assertThat(things.size()).isEqualTo(0);
+    }
+
+    @BeforeTemplate
+    void before5(Map<K, V> things) {
+        assertThat(things).hasSize(0);
+    }
+
+    @AfterTemplate
+    @UseImportPolicy(ImportPolicy.STATIC_IMPORT_ALWAYS)
+    void after(Map<K, V> things) {
+        assertThat(things).isEmpty();
+    }
+}

baseline-refaster-rules/src/main/java/com/palantir/baseline/refaster/AssertjMapIsEmpty2.java

@@ -0,0 +1,44 @@
+/*
+ * (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
+ *
+ * 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 com.palantir.baseline.refaster;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.errorprone.refaster.Refaster;
+import com.google.errorprone.refaster.annotation.AfterTemplate;
+import com.google.errorprone.refaster.annotation.BeforeTemplate;
+import java.util.Collections;
+import org.assertj.core.api.MapAssert;
+
+public final class AssertjMapIsEmpty2<A extends MapAssert<K, V>, K, V> {
+
+    @BeforeTemplate
+    void before1(A in) {
+        in.hasSize(0);
+    }
+
+    @BeforeTemplate
+    void before2(A in) {
+        in.isEqualTo(Refaster.anyOf(
+                ImmutableMap.of(),
+                Collections.emptyMap()));
+    }
+
+    @AfterTemplate
+    void after(A in) {
+        in.isEmpty();
+    }
+}

baseline-refaster-rules/src/main/java/com/palantir/baseline/refaster/AssertjMapIsEmptyWithDescription.java

@@ -0,0 +1,59 @@
+/*
+ * (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
+ *
+ * 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 com.palantir.baseline.refaster;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.google.errorprone.refaster.ImportPolicy;
+import com.google.errorprone.refaster.annotation.AfterTemplate;
+import com.google.errorprone.refaster.annotation.BeforeTemplate;
+import com.google.errorprone.refaster.annotation.UseImportPolicy;
+import java.util.Map;
+
+public final class AssertjMapIsEmptyWithDescription<K, V> {
+
+    @BeforeTemplate
+    void before1(Map<K, V> things, String description) {
+        assertThat(things.size() == 0).describedAs(description).isTrue();
+    }
+
+    @BeforeTemplate
+    void before2(Map<K, V> things, String description) {
+        assertThat(things.isEmpty()).describedAs(description).isTrue();
+    }
+
+    @BeforeTemplate
+    void before3(Map<K, V> things, String description) {
+        assertThat(things.size()).describedAs(description).isZero();
+    }
+
+    @BeforeTemplate
+    void before4(Map<K, V> things, String description) {
+        assertThat(things.size()).describedAs(description).isEqualTo(0);
+    }
+
+    @BeforeTemplate
+    void before5(Map<K, V> things, String description) {
+        assertThat(things).describedAs(description).hasSize(0);
+    }
+
+    @AfterTemplate
+    @UseImportPolicy(ImportPolicy.STATIC_IMPORT_ALWAYS)
+    void after(Map<K, V> things, String description) {
+        assertThat(things).describedAs(description).isEmpty();
+    }
+}

baseline-refaster-rules/src/test/java/com/palantir/baseline/refaster/AssertjMapHasSizeTest.java

@@ -0,0 +1,76 @@
+/*
+ * (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
+ *
+ * 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 com.palantir.baseline.refaster;
+
+import org.junit.Test;
+
+public class AssertjMapHasSizeTest {
+
+    @Test
+    public void exactSize_simple() {
+        RefasterTestHelper
+                .forRefactoring(AssertjMapHasSizeExactly.class)
+                .withInputLines(
+                        "Test",
+                        "import static org.assertj.core.api.Assertions.assertThat;",
+                        "import java.util.Map;",
+                        "public class Test {",
+                        "  void f(Map<String, String> in) {",
+                        "    assertThat(in.size() == 2).isTrue();",
+                        "    assertThat(in.size()).isEqualTo(2);",
+                        "  }",
+                        "}")
+                .hasOutputLines(
+                        "import static org.assertj.core.api.Assertions.assertThat;",
+                        "import java.util.Map;",
+                        "public class Test {",
+                        "  void f(Map<String, String> in) {",
+                        "    assertThat(in).hasSize(2);",
+                        "    assertThat(in).hasSize(2);",
+                        "  }",
+                        "}");
+    }
+
+    @Test
+    public void exactSize_description() {
+        RefasterTestHelper
+                .forRefactoring(AssertjMapHasSizeExactlyWithDescription.class)
+                .withInputLines(
+                        "Test",
+                        "import static org.assertj.core.api.Assertions.assertThat;",
+                        "import com.google.common.collect.ImmutableList;",
+                        "import java.util.Collections;",
+                        "import java.util.Map;",
+                        "public class Test {",
+                        "  void f(Map<String, String> in) {",
+                        "    assertThat(in.size() == 2).describedAs(\"desc\").isTrue();",
+                        "    assertThat(in.size()).describedAs(\"desc\").isEqualTo(2);",
+                        "  }",
+                        "}")
+                .hasOutputLines(
+                        "import static org.assertj.core.api.Assertions.assertThat;",
+                        "import com.google.common.collect.ImmutableList;",
+                        "import java.util.Collections;",
+                        "import java.util.Map;",
+                        "public class Test {",
+                        "  void f(Map<String, String> in) {",
+                        "    assertThat(in).describedAs(\"desc\").hasSize(2);",
+                        "    assertThat(in).describedAs(\"desc\").hasSize(2);",
+                        "  }",
+                        "}");
+    }
+}