Add tests for custom mnemonics

Adds tests to verify custom mnemonics set on `copy_file`,
`copy_directory` and `run_binary`.

tests/copy_directory/BUILD.bazel

@@ -1,6 +1,7 @@
 # This package aids testing the 'copy_directory' rule.
 
 load("//rules:copy_directory.bzl", "copy_directory")
+load("//tests/copy_directory:mnemonic_test.bzl", "copy_directory_mnemonic_test")
 load(":empty_directory.bzl", "empty_directory")
 
 licenses(["notice"])
@@ -41,3 +42,16 @@ sh_test(
     ],
     deps = ["@bazel_tools//tools/bash/runfiles"],
 )
+
+copy_directory(
+    name = "copy_directory_mnemonic_test_target",
+    src = "dir_with_subdir",
+    out = "copied_dir_with_subdir",
+    mnemonic = "FooBar",
+    tags = ["manual"],
+)
+
+copy_directory_mnemonic_test(
+    name = "copy_directory_mnemonic_test",
+    target_under_test = ":copy_directory_mnemonic_test_target",
+)

tests/copy_directory/mnemonic_test.bzl

@@ -0,0 +1,30 @@
+# Copyright 2019 The Bazel Authors. 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.
+
+"""Custom mnemonic tests for copy_directory.bzl"""
+
+load("//lib:unittest.bzl", "analysistest", "asserts")
+load("//rules:copy_directory.bzl", "copy_directory")
+
+def _copy_directory_mnemonic_test_impl(ctx):
+    env = analysistest.begin(ctx)
+
+    expected_mmemonic = "FooBar"
+    actual_mnemonic = analysistest.target_actions(env)[0].mnemonic
+
+    asserts.equals(env, expected_mmemonic, actual_mnemonic)
+
+    return analysistest.end(env)
+
+copy_directory_mnemonic_test = analysistest.make(_copy_directory_mnemonic_test_impl)

tests/copy_file/BUILD

@@ -32,6 +32,7 @@
 #   of it, so we assert that that field contains the output file of the rule
 
 load("//rules:copy_file.bzl", "copy_file")
+load("//tests/copy_file:mnemonic_test.bzl", "copy_file_mnemonic_test")
 
 licenses(["notice"])
 
@@ -171,3 +172,16 @@ genrule(
     outs = ["b.txt"],
     cmd = "echo -e '#!/usr/bin/env bash\necho potato' > $@",
 )
+
+copy_file(
+    name = "copy_file_mnemonic_test_target",
+    src = "foo.txt",
+    out = "bar.txt",
+    mnemonic = "FooBar",
+    tags = ["manual"],
+)
+
+copy_file_mnemonic_test(
+    name = "copy_file_mnemonic_test",
+    target_under_test = ":copy_file_mnemonic_test_target",
+)

tests/copy_file/mnemonic_test.bzl

@@ -0,0 +1,30 @@
+# Copyright 2019 The Bazel Authors. 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.
+
+"""Custom mnemonic tests for copy_file.bzl"""
+
+load("//lib:unittest.bzl", "analysistest", "asserts")
+load("//rules:copy_file.bzl", "copy_file")
+
+def _copy_file_mnemonic_test_impl(ctx):
+    env = analysistest.begin(ctx)
+
+    expected_mmemonic = "FooBar"
+    actual_mnemonic = analysistest.target_actions(env)[0].mnemonic
+
+    asserts.equals(env, expected_mmemonic, actual_mnemonic)
+
+    return analysistest.end(env)
+
+copy_file_mnemonic_test = analysistest.make(_copy_file_mnemonic_test_impl)

tests/run_binary/BUILD

@@ -2,6 +2,7 @@ load("@rules_cc//cc:defs.bzl", "cc_binary")
 load("//rules:diff_test.bzl", "diff_test")
 load("//rules:run_binary.bzl", "run_binary")
 load("//rules:write_file.bzl", "write_file")
+load("//tests/run_binary:mnemonic_test.bzl", "run_binary_mnemonic_test")
 
 package(
     default_testonly = 1,
@@ -165,3 +166,21 @@ cc_binary(
     name = "printargs",
     srcs = ["printargs.cc"],
 )
+
+cc_binary(
+    name = "hello",
+    srcs = ["hello.cc"],
+)
+
+run_binary(
+    name = "run_binary_test_target",
+    outs = ["hello.out"],
+    mnemonic = "FooBar",
+    tags = ["manual"],
+    tool = ":hello",
+)
+
+run_binary_mnemonic_test(
+    name = "run_binary_mnemonic_test",
+    target_under_test = ":run_binary_test_target",
+)

tests/run_binary/hello.cc

@@ -0,0 +1,20 @@
+// Copyright 2019 The Bazel Authors. 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.
+
+#include <stdio.h>
+
+int main() {
+    printf("Hello, world!");
+    return 0;
+}

tests/run_binary/mnemonic_test.bzl

@@ -0,0 +1,30 @@
+# Copyright 2019 The Bazel Authors. 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.
+
+"""Custom mnemonic tests for run_binary.bzl"""
+
+load("//lib:unittest.bzl", "analysistest", "asserts")
+load("//rules:run_binary.bzl", "run_binary")
+
+def _run_binary_mnemonic_test_impl(ctx):
+    env = analysistest.begin(ctx)
+
+    expected_mmemonic = "FooBar"
+    actual_mnemonic = analysistest.target_actions(env)[0].mnemonic
+
+    asserts.equals(env, expected_mmemonic, actual_mnemonic)
+
+    return analysistest.end(env)
+
+run_binary_mnemonic_test = analysistest.make(_run_binary_mnemonic_test_impl)