bp2build support for python_test(_host)

There was a request for using b with python tests. bp2build python
tests exactly the same way as python binaries so that they can be
used with `b`.

Bug: None
Test: go test
Change-Id: Id68a6a73572745a4885b3e5bb1b8452e36baa982

bp2build/python_test_conversion_test.go

@@ -0,0 +1,66 @@
+// Copyright 2023 Google 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 bp2build
+
+import (
+	"android/soong/python"
+	"testing"
+)
+
+func TestPythonTestHostSimple(t *testing.T) {
+	runBp2BuildTestCaseWithPythonLibraries(t, Bp2buildTestCase{
+		Description:                "simple python_test_host converts to a native py_test",
+		ModuleTypeUnderTest:        "python_test_host",
+		ModuleTypeUnderTestFactory: python.PythonTestHostFactory,
+		Filesystem: map[string]string{
+			"a.py":           "",
+			"b/c.py":         "",
+			"b/d.py":         "",
+			"b/e.py":         "",
+			"files/data.txt": "",
+		},
+		Blueprint: `python_test_host {
+    name: "foo",
+    main: "a.py",
+    srcs: ["**/*.py"],
+    exclude_srcs: ["b/e.py"],
+    data: ["files/data.txt",],
+    libs: ["bar"],
+    bazel_module: { bp2build_available: true },
+}
+    python_library_host {
+      name: "bar",
+      srcs: ["b/e.py"],
+      bazel_module: { bp2build_available: false },
+    }`,
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("py_test", "foo", AttrNameToString{
+				"data":    `["files/data.txt"]`,
+				"deps":    `[":bar"]`,
+				"main":    `"a.py"`,
+				"imports": `["."]`,
+				"srcs": `[
+        "a.py",
+        "b/c.py",
+        "b/d.py",
+    ]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+		},
+	})
+}