diff --git a/test-data/poly_example/poly_loc.ert b/test-data/poly_example/poly_loc.ert
new file mode 100644
index 00000000000..d0348521e89
--- /dev/null
+++ b/test-data/poly_example/poly_loc.ert
@@ -0,0 +1,22 @@
+JOBNAME poly_%d
+
+RANDOM_SEED 1234
+
+QUEUE_SYSTEM LOCAL
+QUEUE_OPTION LOCAL MAX_RUNNING 50
+
+RUNPATH runpath/es_loc/realization-<IENS>/iter-<ITER>
+
+ANALYSIS_SET_VAR STD_ENKF LOCALIZATION True
+
+OBS_CONFIG observations
+TIME_MAP time_map
+
+NUM_REALIZATIONS 100
+MIN_REALIZATIONS 1
+
+GEN_KW COEFFS coeff.tmpl coeffs.json coeff_priors
+GEN_DATA POLY_RES RESULT_FILE:poly_%d.out REPORT_STEPS:0 INPUT_FORMAT:ASCII
+
+INSTALL_JOB poly_eval POLY_EVAL
+SIMULATION_JOB poly_eval
diff --git a/test-data/poly_example/poly_loc_1.ert b/test-data/poly_example/poly_loc_1.ert
new file mode 100644
index 00000000000..6936037b73b
--- /dev/null
+++ b/test-data/poly_example/poly_loc_1.ert
@@ -0,0 +1,23 @@
+JOBNAME poly_%d
+
+RANDOM_SEED 1234
+
+QUEUE_SYSTEM LOCAL
+QUEUE_OPTION LOCAL MAX_RUNNING 50
+
+RUNPATH runpath/es_loc_1/realization-<IENS>/iter-<ITER>
+
+ANALYSIS_SET_VAR STD_ENKF LOCALIZATION True
+ANALYSIS_SET_VAR STD_ENKF LOCALIZATION_CORRELATION_THRESHOLD 1.0
+
+OBS_CONFIG observations
+TIME_MAP time_map
+
+NUM_REALIZATIONS 100
+MIN_REALIZATIONS 1
+
+GEN_KW COEFFS coeff.tmpl coeffs.json coeff_priors
+GEN_DATA POLY_RES RESULT_FILE:poly_%d.out REPORT_STEPS:0 INPUT_FORMAT:ASCII
+
+INSTALL_JOB poly_eval POLY_EVAL
+SIMULATION_JOB poly_eval
diff --git a/test-data/poly_example/poly_no_loc.ert b/test-data/poly_example/poly_no_loc.ert
new file mode 100644
index 00000000000..884adfdaccf
--- /dev/null
+++ b/test-data/poly_example/poly_no_loc.ert
@@ -0,0 +1,20 @@
+JOBNAME poly_%d
+
+RANDOM_SEED 1234
+
+QUEUE_SYSTEM LOCAL
+QUEUE_OPTION LOCAL MAX_RUNNING 50
+
+RUNPATH runpath/es_no_loc/realization-<IENS>/iter-<ITER>
+
+OBS_CONFIG observations
+TIME_MAP time_map
+
+NUM_REALIZATIONS 100
+MIN_REALIZATIONS 1
+
+GEN_KW COEFFS coeff.tmpl coeffs.json coeff_priors
+GEN_DATA POLY_RES RESULT_FILE:poly_%d.out REPORT_STEPS:0 INPUT_FORMAT:ASCII
+
+INSTALL_JOB poly_eval POLY_EVAL
+SIMULATION_JOB poly_eval
diff --git a/test-data/poly_example/poly_zero_loc.ert b/test-data/poly_example/poly_zero_loc.ert
new file mode 100644
index 00000000000..9dcd57ddf70
--- /dev/null
+++ b/test-data/poly_example/poly_zero_loc.ert
@@ -0,0 +1,23 @@
+JOBNAME poly_%d
+
+RANDOM_SEED 1234
+
+QUEUE_SYSTEM LOCAL
+QUEUE_OPTION LOCAL MAX_RUNNING 50
+
+RUNPATH runpath/es_zero_loc/realization-<IENS>/iter-<ITER>
+
+ANALYSIS_SET_VAR STD_ENKF LOCALIZATION True
+ANALYSIS_SET_VAR STD_ENKF LOCALIZATION_CORRELATION_THRESHOLD 0.0
+
+OBS_CONFIG observations
+TIME_MAP time_map
+
+NUM_REALIZATIONS 100
+MIN_REALIZATIONS 1
+
+GEN_KW COEFFS coeff.tmpl coeffs.json coeff_priors
+GEN_DATA POLY_RES RESULT_FILE:poly_%d.out REPORT_STEPS:0 INPUT_FORMAT:ASCII
+
+INSTALL_JOB poly_eval POLY_EVAL
+SIMULATION_JOB poly_eval
diff --git a/test-data/poly_example/test_localization.sh b/test-data/poly_example/test_localization.sh
new file mode 100644
index 00000000000..3f04a258692
--- /dev/null
+++ b/test-data/poly_example/test_localization.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+ert ensemble_smoother poly_no_loc.ert --target ES_no_loc
+
+ert ensemble_smoother poly_zero_loc.ert --target ES_zero_loc
+
+ert ensemble_smoother poly_loc.ert --target ES_loc
+
+ert ensemble_smoother poly_loc_1.ert --target ES_loc_1