Fix analysis tests for experimental_prune_transitive_deps

Revive PR bazelbuild#1343 by rbeazleyspot which adds analysis tests for the
experimental_prune_transitive_deps feature.

The original tests failed because config_settings creates a configuration
transition, causing output paths to include a hash suffix (e.g.,
k8-fastbuild-ST-xxx). Fixed by comparing file basenames instead of full
paths using matching.file_basename_equals() predicates.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: agluszak

src/test/starlark/rules/experimental_prune_transitive_deps_tests.bzl

@@ -1,14 +1,30 @@
 load("@rules_testing//lib:analysis_test.bzl", "analysis_test")
+load("@rules_testing//lib:truth.bzl", "matching")
 load("//src/test/starlark:case.bzl", "suite")
 load(":arrangement.bzl", "arrange")
-load(":util.bzl", "abi_jar_of", "values_for_flag_of")
+load(":util.bzl", "abi_jar_of", "basename_of", "values_for_flag_of")
 
 def _classpath_assertions_(env, target):
     action = env.expect.that_target(target).action_named(env.ctx.attr.on_action_mnemonic)
-    action.inputs().contains_at_least([abi_jar_of(f.short_path) for f in env.ctx.files.want_inputs if not f.short_path.endswith("jdeps")])
 
-    values_for_flag_of(action, "--classpath").contains_at_least([abi_jar_of(f.path) for f in env.ctx.files.want_classpath if not f.short_path.endswith("jdeps")])
-    values_for_flag_of(action, "--classpath").contains_none_of([f.path for f in env.ctx.files.not_want_classpath])
+    # Use basename comparison to avoid configuration transition path issues
+    # When config_settings is used, targets are built in a transitioned configuration
+    # with a different output path (e.g., k8-fastbuild-ST-xxx instead of k8-fastbuild)
+
+    # For inputs (File objects), use file_basename_equals matcher
+    want_input_matchers = [
+        matching.file_basename_equals(abi_jar_of(f.basename))
+        for f in env.ctx.files.want_inputs
+        if not f.basename.endswith("jdeps")
+    ]
+    action.inputs().contains_at_least_predicates(want_input_matchers)
+
+    # For classpath (string paths), use str_endswith matcher to match by basename
+    want_classpath_basenames = [abi_jar_of(f.basename) for f in env.ctx.files.want_classpath if not f.basename.endswith("jdeps")]
+    values_for_flag_of(action, "--classpath").transform(desc = "basenames", map_each = basename_of).contains_at_least(want_classpath_basenames)
+
+    not_want_basenames = [f.basename for f in env.ctx.files.not_want_classpath]
+    values_for_flag_of(action, "--classpath").transform(desc = "basenames", map_each = basename_of).contains_none_of(not_want_basenames)
 
 def _test_classpath_experimental_prune_transitive_deps_False(test):
     (dependency_a_trans_dep_jar, dependency_a, main_target_library) = arrange(test)
@@ -22,27 +38,27 @@ def _test_classpath_experimental_prune_transitive_deps_False(test):
             str(Label("@rules_kotlin//kotlin/settings:experimental_strict_associate_dependencies")): False,
         },
         attr_values = {
+            "not_want_classpath": [],
             "on_action_mnemonic": "KotlinCompile",
-            "want_inputs": [
+            "want_classpath": [
                 dependency_a,
                 dependency_a_trans_dep_jar,
             ],
             "want_direct_dependencies": [
                 dependency_a,
                 dependency_a_trans_dep_jar,
             ],
-            "want_classpath": [
+            "want_inputs": [
                 dependency_a,
                 dependency_a_trans_dep_jar,
             ],
-            "not_want_classpath": [],
         },
         attrs = {
+            "not_want_classpath": attr.label_list(providers = [DefaultInfo], allow_files = True),
             "on_action_mnemonic": attr.string(),
-            "want_inputs": attr.label_list(providers = [DefaultInfo], allow_files = True),
-            "want_direct_dependencies": attr.label_list(providers = [DefaultInfo], allow_files = True),
             "want_classpath": attr.label_list(providers = [DefaultInfo], allow_files = True),
-            "not_want_classpath": attr.label_list(providers = [DefaultInfo], allow_files = True),
+            "want_direct_dependencies": attr.label_list(providers = [DefaultInfo], allow_files = True),
+            "want_inputs": attr.label_list(providers = [DefaultInfo], allow_files = True),
         },
     )
 
@@ -58,26 +74,26 @@ def _test_classpath_experimental_prune_transitive_deps_True(test):
             str(Label("@rules_kotlin//kotlin/settings:experimental_strict_associate_dependencies")): False,
         },
         attr_values = {
+            "not_want_classpath": [
+                dependency_a_trans_dep_jar,
+            ],
             "on_action_mnemonic": "KotlinCompile",
-            "want_inputs": [
+            "want_classpath": [
                 dependency_a,
             ],
             "want_direct_dependencies": [
                 dependency_a,
             ],
-            "want_classpath": [
+            "want_inputs": [
                 dependency_a,
             ],
-            "not_want_classpath": [
-                dependency_a_trans_dep_jar,
-            ],
         },
         attrs = {
+            "not_want_classpath": attr.label_list(providers = [DefaultInfo], allow_files = True),
             "on_action_mnemonic": attr.string(),
-            "want_inputs": attr.label_list(providers = [DefaultInfo], allow_files = True),
-            "want_direct_dependencies": attr.label_list(providers = [DefaultInfo], allow_files = True),
             "want_classpath": attr.label_list(providers = [DefaultInfo], allow_files = True),
-            "not_want_classpath": attr.label_list(providers = [DefaultInfo], allow_files = True),
+            "want_direct_dependencies": attr.label_list(providers = [DefaultInfo], allow_files = True),
+            "want_inputs": attr.label_list(providers = [DefaultInfo], allow_files = True),
         },
     )
 

src/test/starlark/rules/util.bzl

@@ -1,3 +1,7 @@
+def basename_of(path):
+    """Extract basename from a path string."""
+    return path.split("/")[-1]
+
 def values_for_flag_of(action_subject, flag):
     return action_subject.argv().transform(desc = "parsed()", loop = _curry_denormalise_flags_with(flag))