Retry: "java_sdk_library: Access outputs using tags"

Previously, in order to access say the public stubs source jar it was
necessary to directly reference the module by name. This change adds
support for accessing them indirectly via tags.

Test: nothing
Bug: 155164730
(cherry picked from commit 46dc45aba9c60f8b6f90005f41dcbd2f771756e1)
Change-Id: Icc21caee5b4b1da6f958470bd7bae8a37933f24b

1 files changed, 107 insertions, 0 deletions

diff --git a/java/java_test.go b/java/java_test.go
index 16200119e..4f3a803ff 100644
--- a/java/java_test.go
+++ b/java/java_test.go
@@ -1230,6 +1230,113 @@ func TestJavaSdkLibrary(t *testing.T) {
 	}
 }
 
+func TestJavaSdkLibrary_UseSourcesFromAnotherSdkLibrary(t *testing.T) {
+	testJava(t, `
+		java_sdk_library {
+			name: "foo",
+			srcs: ["a.java"],
+			api_packages: ["foo"],
+			public: {
+				enabled: true,
+			},
+		}
+
+		java_library {
+			name: "bar",
+			srcs: ["b.java", ":foo{.public.stubs.source}"],
+		}
+		`)
+}
+
+func TestJavaSdkLibrary_AccessOutputFiles_MissingScope(t *testing.T) {
+	testJavaError(t, `"foo" does not provide api scope system`, `
+		java_sdk_library {
+			name: "foo",
+			srcs: ["a.java"],
+			api_packages: ["foo"],
+			public: {
+				enabled: true,
+			},
+		}
+
+		java_library {
+			name: "bar",
+			srcs: ["b.java", ":foo{.system.stubs.source}"],
+		}
+		`)
+}
+
+func TestJavaSdkLibraryImport_AccessOutputFiles(t *testing.T) {
+	testJava(t, `
+		java_sdk_library_import {
+			name: "foo",
+			public: {
+				jars: ["a.jar"],
+				stub_srcs: ["a.java"],
+				current_api: "api/current.txt",
+				removed_api: "api/removed.txt",
+			},
+		}
+
+		java_library {
+			name: "bar",
+			srcs: [":foo{.public.stubs.source}"],
+			java_resources: [
+				":foo{.public.api.txt}",
+				":foo{.public.removed-api.txt}",
+			],
+		}
+		`)
+}
+
+func TestJavaSdkLibraryImport_AccessOutputFiles_Invalid(t *testing.T) {
+	bp := `
+		java_sdk_library_import {
+			name: "foo",
+			public: {
+				jars: ["a.jar"],
+			},
+		}
+		`
+
+	t.Run("stubs.source", func(t *testing.T) {
+		testJavaError(t, `stubs.source not available for api scope public`, bp+`
+		java_library {
+			name: "bar",
+			srcs: [":foo{.public.stubs.source}"],
+			java_resources: [
+				":foo{.public.api.txt}",
+				":foo{.public.removed-api.txt}",
+			],
+		}
+		`)
+	})
+
+	t.Run("api.txt", func(t *testing.T) {
+		testJavaError(t, `api.txt not available for api scope public`, bp+`
+		java_library {
+			name: "bar",
+			srcs: ["a.java"],
+			java_resources: [
+				":foo{.public.api.txt}",
+			],
+		}
+		`)
+	})
+
+	t.Run("removed-api.txt", func(t *testing.T) {
+		testJavaError(t, `removed-api.txt not available for api scope public`, bp+`
+		java_library {
+			name: "bar",
+			srcs: ["a.java"],
+			java_resources: [
+				":foo{.public.removed-api.txt}",
+			],
+		}
+		`)
+	})
+}
+
 func TestJavaSdkLibrary_InvalidScopes(t *testing.T) {
 	testJavaError(t, `module "foo": enabled api scope "system" depends on disabled scope "public"`, `
 		java_sdk_library {