diff --git a/test/optimizer/loop_collapse/negative/inner_loop_doall_only/__init__.py b/test/optimizer/loop_collapse/negative/inner_loop_doall_only/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/test/optimizer/loop_collapse/negative/inner_loop_doall_only/src/Makefile b/test/optimizer/loop_collapse/negative/inner_loop_doall_only/src/Makefile
new file mode 100644
index 000000000..8b1635880
--- /dev/null
+++ b/test/optimizer/loop_collapse/negative/inner_loop_doall_only/src/Makefile
@@ -0,0 +1,15 @@
+all: clean prog
+
+prog: code.o
+	$(CXX) -o prog code.o $(CXXFLAGS)
+
+code.o:
+	$(CXX) -c -o code.o code.cpp $(CXXFLAGS)
+
+clean:
+	rm -rf .discopop
+	rm -rf src/.discopop
+	find . -not -name code.cpp -not -name Makefile -not -path **/FileMapping.txt -delete
+
+veryclean: clean
+	rm -f FileMapping.txt
diff --git a/test/optimizer/loop_collapse/negative/inner_loop_doall_only/src/code.cpp b/test/optimizer/loop_collapse/negative/inner_loop_doall_only/src/code.cpp
new file mode 100644
index 000000000..5d4d23cf3
--- /dev/null
+++ b/test/optimizer/loop_collapse/negative/inner_loop_doall_only/src/code.cpp
@@ -0,0 +1,24 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int main(int argc, const char* argv[]) {
+    static int n = 50000;
+    double *x = (double *) malloc(n * sizeof(double));
+    double *y = (double *) malloc(n * sizeof(double));
+    // Initialize x, y
+    // Do-All
+    for(int i = 0; i < n; ++i){
+        x[i] = 1.0;
+        y[i] = 2.0;
+    }
+
+    // Not Do-All
+    for(int i = 0; i < n/10; i++){
+        // Do-All
+        for(int j = 0; j < 10; j++){
+            y[i*10 + j] = x[i*10 + j] + y[i*9 +j];
+        }
+    }
+    free(x);
+    free(y);
+}
diff --git a/test/optimizer/loop_collapse/negative/inner_loop_doall_only/test.py b/test/optimizer/loop_collapse/negative/inner_loop_doall_only/test.py
new file mode 100644
index 000000000..64e4d6b57
--- /dev/null
+++ b/test/optimizer/loop_collapse/negative/inner_loop_doall_only/test.py
@@ -0,0 +1,67 @@
+import os
+import pathlib
+import unittest
+
+import jsonpickle
+
+from discopop_library.result_classes.DetectionResult import DetectionResult
+from test.utils.subprocess_wrapper.command_execution_wrapper import run_cmd
+from test.utils.validator_classes.DoAllInfoForValidation import DoAllInfoForValidation
+from discopop_library.ConfigProvider.config_provider import run as run_config_provider
+from discopop_library.ConfigProvider.ConfigProviderArguments import ConfigProviderArguments
+
+
+class TestMethods(unittest.TestCase):
+    def test(self):
+        current_dir = pathlib.Path(__file__).parent.resolve()
+        dp_build_dir = run_config_provider(
+            ConfigProviderArguments(
+                return_dp_build_dir=True,
+                return_dp_source_dir=False,
+                return_llvm_bin_dir=False,
+                return_version_string=False,
+            )
+        )
+
+        env_vars = dict(os.environ)
+
+        src_dir = os.path.join(current_dir, "src")
+
+        # create FileMapping
+        cmd = os.path.join(dp_build_dir, "scripts", "dp-fmap")
+        run_cmd(cmd, src_dir, env_vars)
+
+        # build
+        env_vars["CC"] = os.path.join(dp_build_dir, "scripts", "CC_wrapper.sh")
+        env_vars["CXX"] = os.path.join(dp_build_dir, "scripts", "CXX_wrapper.sh")
+        cmd = "make"
+        run_cmd(cmd, src_dir, env_vars)
+        # execute instrumented program
+        cmd = "./prog"
+        run_cmd(cmd, src_dir, env_vars)
+        # execute DiscoPoP analysis
+        cwd = os.path.join(src_dir, ".discopop")
+        run_cmd("discopop_explorer", cwd, env_vars)
+        run_cmd("discopop_optimizer -o3", cwd, env_vars)
+        # validate results
+        try:
+            self.validate_results(current_dir, src_dir)
+            # clean environment
+            run_cmd("make veryclean", src_dir, env_vars)
+        except Exception as ex:
+            # clean environment
+            run_cmd("make veryclean", src_dir, env_vars)
+            raise ex
+
+    def validate_results(self, test_dir, src_dir):
+        """Check that not collapse has been identified"""
+
+        # load test output
+        test_output_file = os.path.join(src_dir, ".discopop", "optimizer", "detection_result_dump.json")
+        with open(test_output_file, "r") as f:
+            tmp_str = f.read()
+        test_output: DetectionResult = jsonpickle.decode(tmp_str)
+
+        # check identified DoAllInfo objects for collapse clauses > 1
+        for do_all_info in test_output.patterns.do_all:
+            self.assertTrue(do_all_info.collapse_level <= 1)
diff --git a/test/optimizer/loop_collapse/negative/outer_loop_doall_only/__init__.py b/test/optimizer/loop_collapse/negative/outer_loop_doall_only/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/test/optimizer/loop_collapse/negative/outer_loop_doall_only/src/Makefile b/test/optimizer/loop_collapse/negative/outer_loop_doall_only/src/Makefile
new file mode 100644
index 000000000..8b1635880
--- /dev/null
+++ b/test/optimizer/loop_collapse/negative/outer_loop_doall_only/src/Makefile
@@ -0,0 +1,15 @@
+all: clean prog
+
+prog: code.o
+	$(CXX) -o prog code.o $(CXXFLAGS)
+
+code.o:
+	$(CXX) -c -o code.o code.cpp $(CXXFLAGS)
+
+clean:
+	rm -rf .discopop
+	rm -rf src/.discopop
+	find . -not -name code.cpp -not -name Makefile -not -path **/FileMapping.txt -delete
+
+veryclean: clean
+	rm -f FileMapping.txt
diff --git a/test/optimizer/loop_collapse/negative/outer_loop_doall_only/src/code.cpp b/test/optimizer/loop_collapse/negative/outer_loop_doall_only/src/code.cpp
new file mode 100644
index 000000000..2de863084
--- /dev/null
+++ b/test/optimizer/loop_collapse/negative/outer_loop_doall_only/src/code.cpp
@@ -0,0 +1,22 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int main(int argc, const char* argv[]) {
+    static int n = 5000;
+    double *x = (double *) malloc(n * sizeof(double));
+    double *y = (double *) malloc(n * sizeof(double));
+    // Initialize x, y
+    // Do-All
+    for(int i = 0; i < n; ++i){
+        x[i] = 1.0;
+        y[i] = 2.0;
+    }
+
+    // Do-All
+    for(int i = 0; i < n/10; i++){
+        // Not Do-All
+        for(int j = 0; j < 100; j++){
+            y[i*10 + j] = x[i*10 + j] + y[i*10 +((j+2)%10)];
+        }
+    }
+}
diff --git a/test/optimizer/loop_collapse/negative/outer_loop_doall_only/test.py b/test/optimizer/loop_collapse/negative/outer_loop_doall_only/test.py
new file mode 100644
index 000000000..64e4d6b57
--- /dev/null
+++ b/test/optimizer/loop_collapse/negative/outer_loop_doall_only/test.py
@@ -0,0 +1,67 @@
+import os
+import pathlib
+import unittest
+
+import jsonpickle
+
+from discopop_library.result_classes.DetectionResult import DetectionResult
+from test.utils.subprocess_wrapper.command_execution_wrapper import run_cmd
+from test.utils.validator_classes.DoAllInfoForValidation import DoAllInfoForValidation
+from discopop_library.ConfigProvider.config_provider import run as run_config_provider
+from discopop_library.ConfigProvider.ConfigProviderArguments import ConfigProviderArguments
+
+
+class TestMethods(unittest.TestCase):
+    def test(self):
+        current_dir = pathlib.Path(__file__).parent.resolve()
+        dp_build_dir = run_config_provider(
+            ConfigProviderArguments(
+                return_dp_build_dir=True,
+                return_dp_source_dir=False,
+                return_llvm_bin_dir=False,
+                return_version_string=False,
+            )
+        )
+
+        env_vars = dict(os.environ)
+
+        src_dir = os.path.join(current_dir, "src")
+
+        # create FileMapping
+        cmd = os.path.join(dp_build_dir, "scripts", "dp-fmap")
+        run_cmd(cmd, src_dir, env_vars)
+
+        # build
+        env_vars["CC"] = os.path.join(dp_build_dir, "scripts", "CC_wrapper.sh")
+        env_vars["CXX"] = os.path.join(dp_build_dir, "scripts", "CXX_wrapper.sh")
+        cmd = "make"
+        run_cmd(cmd, src_dir, env_vars)
+        # execute instrumented program
+        cmd = "./prog"
+        run_cmd(cmd, src_dir, env_vars)
+        # execute DiscoPoP analysis
+        cwd = os.path.join(src_dir, ".discopop")
+        run_cmd("discopop_explorer", cwd, env_vars)
+        run_cmd("discopop_optimizer -o3", cwd, env_vars)
+        # validate results
+        try:
+            self.validate_results(current_dir, src_dir)
+            # clean environment
+            run_cmd("make veryclean", src_dir, env_vars)
+        except Exception as ex:
+            # clean environment
+            run_cmd("make veryclean", src_dir, env_vars)
+            raise ex
+
+    def validate_results(self, test_dir, src_dir):
+        """Check that not collapse has been identified"""
+
+        # load test output
+        test_output_file = os.path.join(src_dir, ".discopop", "optimizer", "detection_result_dump.json")
+        with open(test_output_file, "r") as f:
+            tmp_str = f.read()
+        test_output: DetectionResult = jsonpickle.decode(tmp_str)
+
+        # check identified DoAllInfo objects for collapse clauses > 1
+        for do_all_info in test_output.patterns.do_all:
+            self.assertTrue(do_all_info.collapse_level <= 1)