diff --git a/BUILD b/BUILD
new file mode 100644
index 00000000..e94b2e4b
--- /dev/null
+++ b/BUILD
@@ -0,0 +1,36 @@
+filegroup(
+    name = "all_sources",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
+sh_test(
+    name = "integration_tests",
+    srcs = ["test/test_runner.sh"],
+    data = [
+        ":all_sources",
+        "//src:all_src_sources",
+        "//test/unit/legacy:all_files",
+        "//test/unit/parse:all_files",
+        "//test/unit/implementation_deps:all_files",
+        "//test/unit/generated_files:all_files",
+        "//test/unit/config:all_files",
+        "//test/unit/compile_flags:all_files",
+        "//test/unit/caching:all_files",
+        "//test/unit/argument_merge:all_files",
+        "//test/unit/virtual_include:all_files",
+    ],
+    tags = [
+        "local",
+        "exclusive",
+    ],
+    size = "large",
+    timeout = "long",
+)
diff --git a/src/BUILD b/src/BUILD
index 029908cd..129ddc5f 100644
--- a/src/BUILD
+++ b/src/BUILD
@@ -12,6 +12,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+filegroup(
+    name = "all_src_sources",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 # Tool filter compile_commands.json file
 py_binary(
     name = "compile_commands_filter",
diff --git a/test/test.sh b/test/test.sh
index 8b9d4b01..971b79ec 100755
--- a/test/test.sh
+++ b/test/test.sh
@@ -1,2 +1,3 @@
 #!/bin/bash
+# This file is tied to a CI job and thus can't be changed
 python3 -m unittest discover unit $@
diff --git a/test/test_runner.sh b/test/test_runner.sh
new file mode 100755
index 00000000..2982d96c
--- /dev/null
+++ b/test/test_runner.sh
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+python3 -m unittest discover -t . -s test/unit $@
diff --git a/test/unit/argument_merge/BUILD b/test/unit/argument_merge/BUILD
index 7bfb7d69..4be9b8f3 100644
--- a/test/unit/argument_merge/BUILD
+++ b/test/unit/argument_merge/BUILD
@@ -23,6 +23,19 @@ load(
     "cc_library",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 cc_library(
     name = "main",
     srcs = ["main.cc"],
diff --git a/test/unit/caching/BUILD b/test/unit/caching/BUILD
index 5673ac10..acac7e54 100644
--- a/test/unit/caching/BUILD
+++ b/test/unit/caching/BUILD
@@ -24,6 +24,19 @@ load(
     "cc_library",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 # We are not interested in finding bugs, we are only interested in whether the
 # analysis re-runs after the files have been modified. As such, these files emit no
 # warnings.
diff --git a/test/unit/compile_flags/BUILD b/test/unit/compile_flags/BUILD
index 01f30125..50dd3580 100644
--- a/test/unit/compile_flags/BUILD
+++ b/test/unit/compile_flags/BUILD
@@ -29,6 +29,19 @@ load(
     "cc_library",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 cc_library(
     name = "target_with_both_extension",
     srcs = [
diff --git a/test/unit/config/BUILD b/test/unit/config/BUILD
index 39dc8a0d..a056f694 100644
--- a/test/unit/config/BUILD
+++ b/test/unit/config/BUILD
@@ -26,6 +26,19 @@ load(
     "cc_binary",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 # C++ binary containing a division by zero bug
 cc_binary(
     name = "test_zero",
diff --git a/test/unit/generated_files/BUILD b/test/unit/generated_files/BUILD
index 9cd7733a..53de1c80 100644
--- a/test/unit/generated_files/BUILD
+++ b/test/unit/generated_files/BUILD
@@ -27,6 +27,19 @@ load(
     "cc_binary",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 # First, define the rule that generates our file.
 genrule(
     name = "generate_header",
diff --git a/test/unit/implementation_deps/BUILD b/test/unit/implementation_deps/BUILD
index 4733e1ee..6bf8a282 100644
--- a/test/unit/implementation_deps/BUILD
+++ b/test/unit/implementation_deps/BUILD
@@ -21,6 +21,19 @@ load(
     "compile_commands",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 cc_library(
     name = "dep_lib",
     srcs = [
diff --git a/test/unit/legacy/BUILD b/test/unit/legacy/BUILD
index 3e263675..296b4669 100644
--- a/test/unit/legacy/BUILD
+++ b/test/unit/legacy/BUILD
@@ -33,6 +33,19 @@ load(
     "cc_library",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 # Test for strip_include_prefix
 cc_library(
     name = "test_inc",
diff --git a/test/unit/parse/BUILD b/test/unit/parse/BUILD
index d50e25c9..68c7734b 100644
--- a/test/unit/parse/BUILD
+++ b/test/unit/parse/BUILD
@@ -23,6 +23,19 @@ load(
     "cc_library",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 cc_library(
     name = "c_target",
     srcs = ["simple.c"],
diff --git a/test/unit/virtual_include/BUILD b/test/unit/virtual_include/BUILD
index beaad605..e6c04c3d 100644
--- a/test/unit/virtual_include/BUILD
+++ b/test/unit/virtual_include/BUILD
@@ -24,6 +24,19 @@ load(
     "cc_library",
 )
 
+filegroup(
+    name = "all_files",
+    srcs = glob(
+        ["**/*"],
+        exclude = [
+            "bazel-*/**",       # Exclude bazel symlinks
+            ".git/**",
+            "**/__pycache__/**",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)
+
 # Test for strip_include_prefix
 cc_library(
     name = "test_inc",