From 853913d795b5303be62a635e4a268a91478d568c Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Thu, 9 May 2024 12:19:04 -0600
Subject: [PATCH 01/13] setting up ipolates tests

---
 tests/CMakeLists.txt        | 4 +++-
 tests/run_ipolates_tests.sh | 6 ++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 tests/run_ipolates_tests.sh

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 21ea8e4a..ff392de3 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -107,7 +107,9 @@ endif()
 if (USE_NETCDF3)
   shell_test(run_wgrib2_netcdf3_tests)
 endif()
-
+if (USE_IPOLATES=1)
+  shell_test(run_ipolates_tests)
+endif
 if (USE_AEC)
   shell_test(run_wgrib2_aec_tests)
 endif()
diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
new file mode 100644
index 00000000..790f3c58
--- /dev/null
+++ b/tests/run_ipolates_tests.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+# This checks the use of ip external library, only available if USE_IPOLATES is turned on in CMake.
+#
+# Alyson Stahl 5/9/2024
+
+set -e

From 8e5872cc6d047bc890604d809986742db1c3b286 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Thu, 9 May 2024 12:25:08 -0600
Subject: [PATCH 02/13] typo

---
 tests/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index ff392de3..1bc40668 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -109,7 +109,7 @@ if (USE_NETCDF3)
 endif()
 if (USE_IPOLATES=1)
   shell_test(run_ipolates_tests)
-endif
+endif()
 if (USE_AEC)
   shell_test(run_wgrib2_aec_tests)
 endif()

From 0c74c10be79e871e04765144174d16a4db0c320f Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Mon, 20 May 2024 12:47:05 -0600
Subject: [PATCH 03/13] testing commands in CI

---
 .github/workflows/developer.yml | 2 +-
 tests/run_ipolates_tests.sh     | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/developer.yml b/.github/workflows/developer.yml
index 2c323909..146317bb 100644
--- a/.github/workflows/developer.yml
+++ b/.github/workflows/developer.yml
@@ -105,7 +105,7 @@ jobs:
         export CFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
         export FCFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
         export FFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
-        cmake .. -DFTP_TEST_FILES=ON  -DTEST_FILE_DIR=/home/runner/data
+        cmake .. -DFTP_TEST_FILES=ON  -DTEST_FILE_DIR=/home/runner/data -DUSE_IPOLATES=1
         make VERBOSE=1
         ctest --verbose --output-on-failure --rerun-failed
         gcovr --root .. -v  --html-details --exclude ../tests --exclude CMakeFiles --print-summary -o test-coverage.html &> /dev/null
diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index 790f3c58..c4639a63 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -1,6 +1,10 @@
 #!/bin/sh
-# This checks the use of ip external library, only available if USE_IPOLATES is turned on in CMake.
+# This checks the use of ip external library, only available if USE_IPOLATES=1 CMake.
 #
 # Alyson Stahl 5/9/2024
 
 set -e
+
+../wgrib2/wgrib2.exe data/tmp_int.grb -new_grid_winds earth  -new_grid latlon 0:359:1 0:90:1 OUT.grb
+echo "*** SUCCESS!"
+exit 0
\ No newline at end of file

From 583b6f8e2617efaa6ff2ddd12623234dca465180 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Mon, 20 May 2024 12:53:52 -0600
Subject: [PATCH 04/13] Update developer.yml

---
 .github/workflows/developer.yml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/.github/workflows/developer.yml b/.github/workflows/developer.yml
index 146317bb..7874e241 100644
--- a/.github/workflows/developer.yml
+++ b/.github/workflows/developer.yml
@@ -69,6 +69,22 @@ jobs:
         make -j2
         make install
 
+    - name: checkout-ip
+      uses: actions/checkout@v4
+      with:
+        repository: NOAA-EMC/NCEPLIBS-ip
+        path: ip
+        ref: v3.3.3
+  
+    - name: build-ip
+      run: |
+        cd ip
+        mkdir build
+        cd build
+        cmake .. -DCMAKE_INSTALL_PREFIX=~/ip -DCMAKE_PREFIX_PATH=~/sp
+        make -j2
+        make install
+
     - name: checkout-ip2
       uses: actions/checkout@v4
       with:

From 9f17501cfc869c0d882859dcdb9364f8a16707fc Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Mon, 20 May 2024 12:55:59 -0600
Subject: [PATCH 05/13] Update developer.yml

---
 .github/workflows/developer.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/developer.yml b/.github/workflows/developer.yml
index 7874e241..c51f1341 100644
--- a/.github/workflows/developer.yml
+++ b/.github/workflows/developer.yml
@@ -121,7 +121,7 @@ jobs:
         export CFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
         export FCFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
         export FFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
-        cmake .. -DFTP_TEST_FILES=ON  -DTEST_FILE_DIR=/home/runner/data -DUSE_IPOLATES=1
+        cmake .. -DFTP_TEST_FILES=ON  -DTEST_FILE_DIR=/home/runner/data -DUSE_IPOLATES=1 -DCMAKE_PREFIX_PATH="~/sp;~/ip;~/ip2"
         make VERBOSE=1
         ctest --verbose --output-on-failure --rerun-failed
         gcovr --root .. -v  --html-details --exclude ../tests --exclude CMakeFiles --print-summary -o test-coverage.html &> /dev/null

From 938ee3c7d47755d4c76469023d1985fbeef25ab1 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Mon, 20 May 2024 12:58:09 -0600
Subject: [PATCH 06/13] Update CMakeLists.txt

---
 tests/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 8d1110c9..1099161f 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -118,7 +118,7 @@ endif()
 if (USE_NETCDF3)
   shell_test(run_wgrib2_netcdf3_tests)
 endif()
-if (USE_IPOLATES=1)
+if (USE_IPOLATES EQUAL 1)
   shell_test(run_ipolates_tests)
 endif()
 if (USE_AEC)

From 865631a5f7ab090bf6e43d406b61c38dc71b9c2d Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Mon, 20 May 2024 13:00:10 -0600
Subject: [PATCH 07/13] Update run_ipolates_tests.sh

---
 tests/run_ipolates_tests.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index c4639a63..195d00dd 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -5,6 +5,6 @@
 
 set -e
 
-../wgrib2/wgrib2.exe data/tmp_int.grb -new_grid_winds earth  -new_grid latlon 0:359:1 0:90:1 OUT.grb
+../wgrib2/wgrib2 data/tmp_int.grb -new_grid_winds earth  -new_grid latlon 0:359:1 0:90:1 OUT.grb
 echo "*** SUCCESS!"
 exit 0
\ No newline at end of file

From 832b00b9f9ed49cebac6aa026343d5059e64f343 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Mon, 20 May 2024 13:08:12 -0600
Subject: [PATCH 08/13] Update run_ipolates_tests.sh

---
 tests/run_ipolates_tests.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index 195d00dd..0a9bc0e1 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -3,8 +3,9 @@
 #
 # Alyson Stahl 5/9/2024
 
-set -e
+#set -e
 
 ../wgrib2/wgrib2 data/tmp_int.grb -new_grid_winds earth  -new_grid latlon 0:359:1 0:90:1 OUT.grb
+
 echo "*** SUCCESS!"
 exit 0
\ No newline at end of file

From e5924dc82fba0f2e25b027e21d94d22167ae4d7e Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Fri, 5 Jul 2024 09:50:27 -0700
Subject: [PATCH 09/13] turn existing test back on

---
 tests/CMakeLists.txt        | 2 +-
 tests/run_ipolates_tests.sh | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index f0a46965..a827fe53 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -120,7 +120,7 @@ endif()
 if (USE_NETCDF3)
   shell_test(run_wgrib2_netcdf3_tests)
 endif()
-if (USE_IPOLATES EQUAL 1)
+if (USE_IPOLATES)
   shell_test(run_ipolates_tests)
 endif()
 if (USE_AEC)
diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index 0a9bc0e1..78b1f4b8 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -1,11 +1,11 @@
 #!/bin/sh
-# This checks the use of ip external library, only available if USE_IPOLATES=1 CMake.
+# This checks the use of ip external library, only available if USE_IPOLATES=ON CMake.
 #
 # Alyson Stahl 5/9/2024
 
-#set -e
+set -e
 
-../wgrib2/wgrib2 data/tmp_int.grb -new_grid_winds earth  -new_grid latlon 0:359:1 0:90:1 OUT.grb
+../wgrib2/wgrib2 data/ref_simple_packing.grib2 -new_grid_winds earth  -new_grid latlon 0:359:1 0:90:1 OUT.grb
 
 echo "*** SUCCESS!"
 exit 0
\ No newline at end of file

From 0aa4400cd18b0adc9aebfd962f0c27edd35ed399 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Fri, 5 Jul 2024 10:45:40 -0700
Subject: [PATCH 10/13] update test

---
 tests/CMakeLists.txt                          |  1 +
 ...rid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt | 84 +++++++++++++++++++
 tests/run_ipolates_tests.sh                   |  6 +-
 3 files changed, 90 insertions(+), 1 deletion(-)
 create mode 100644 tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index a827fe53..009c5c59 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -106,6 +106,7 @@ copy_test_data(ref_sec0.gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt)
 copy_test_data(ref_sec_len.gdaswave.t00z.wcoast.0p16.f000.grib2.txt)
 copy_test_data(ref_sec_len.simple_packing.grib2.txt)
 copy_test_data(ref_simple_packing.grib2.spread.txt)
+copy_test_data(ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt)
 
 # Run these shell tests.
 shell_test(run_wgrib2_tests)
diff --git a/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt b/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
new file mode 100644
index 00000000..b7494e93
--- /dev/null
+++ b/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
@@ -0,0 +1,84 @@
+1:0:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+2:179:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+3:358:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+4:537:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+5:716:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+6:895:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+7:1074:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+8:1253:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+9:1432:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+10:1611:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+11:1790:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+12:1969:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+13:2148:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
+14:2327:grid_template=0:winds(grid):
+	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 89.000000 by 1.000000
+	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 89000000 lon=0 to 358000000
diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index 78b1f4b8..8d3516dd 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -5,7 +5,11 @@
 
 set -e
 
-../wgrib2/wgrib2 data/ref_simple_packing.grib2 -new_grid_winds earth  -new_grid latlon 0:359:1 0:90:1 OUT.grb
+../wgrib2/wgrib2 data/gdas.t12z.pgrb2.1p00.anl.75r.grib2 -match "(UGRD|VGRD)" -new_grid_winds grid  \
+    -new_grid latlon 0:359:1 0:90:1 new_grid.grb
+../wgrib2/wgrib2 new_grid.grb -grid -v2 > new_grid.txt
+touch new_grid.txt
+diff -w new_grid.txt data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
 
 echo "*** SUCCESS!"
 exit 0
\ No newline at end of file

From 71ffcf24ff36998f50b06b4f5b872bd10b9ee692 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Fri, 5 Jul 2024 10:49:39 -0700
Subject: [PATCH 11/13] Update developer.yml

---
 .github/workflows/developer.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/developer.yml b/.github/workflows/developer.yml
index 695a6271..c5faa784 100644
--- a/.github/workflows/developer.yml
+++ b/.github/workflows/developer.yml
@@ -137,7 +137,7 @@ jobs:
         export CFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
         export FCFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
         export FFLAGS='-Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0'        
-        cmake .. -DFTP_TEST_FILES=ON -DCMAKE_PREFIX_PATH="~/ip;~/ip2" -DTEST_FILE_DIR=/home/runner/data -DUSE_NETCDF4=ON -DUSE_AEC=ON -DUSE_IPOLATES=1
+        cmake .. -DFTP_TEST_FILES=ON -DCMAKE_PREFIX_PATH="~/ip;~/ip2;~/sp" -DTEST_FILE_DIR=/home/runner/data -DUSE_NETCDF4=ON -DUSE_AEC=ON -DUSE_IPOLATES=ON
         make VERBOSE=1
         ctest --verbose --output-on-failure --rerun-failed
         gcovr --root .. -v  --html-details --exclude ../tests --exclude CMakeFiles --print-summary -o test-coverage.html &> /dev/null

From 83efcced8fcea1fb252fc2378d3c560d63b67f5c Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Fri, 5 Jul 2024 10:58:43 -0700
Subject: [PATCH 12/13] trying to force CI to run

---
 tests/run_ipolates_tests.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index 8d3516dd..93cdcaf9 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -11,5 +11,6 @@ set -e
 touch new_grid.txt
 diff -w new_grid.txt data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
 
+
 echo "*** SUCCESS!"
 exit 0
\ No newline at end of file

From 123000b2e47eef3ebb6e2ef96723793d1e22e6a1 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Fri, 5 Jul 2024 12:35:26 -0700
Subject: [PATCH 13/13] added test

---
 tests/CMakeLists.txt                          |   1 +
 ...rth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt |  84 +++++++++++++
 ...rid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt | 112 +++++++++---------
 tests/run_ipolates_tests.sh                   |   9 +-
 4 files changed, 149 insertions(+), 57 deletions(-)
 create mode 100644 tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 009c5c59..0f25a28e 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -107,6 +107,7 @@ copy_test_data(ref_sec_len.gdaswave.t00z.wcoast.0p16.f000.grib2.txt)
 copy_test_data(ref_sec_len.simple_packing.grib2.txt)
 copy_test_data(ref_simple_packing.grib2.spread.txt)
 copy_test_data(ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt)
+copy_test_data(ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt)
 
 # Run these shell tests.
 shell_test(run_wgrib2_tests)
diff --git a/tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt b/tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
new file mode 100644
index 00000000..0c1ab74d
--- /dev/null
+++ b/tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
@@ -0,0 +1,84 @@
+1:0:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+2:8324:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+3:16648:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+4:24972:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+5:33296:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+6:41620:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+7:49944:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+8:58268:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+9:66592:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+10:74916:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+11:83240:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+12:91564:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+13:99888:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
+14:108212:grid_template=0:winds(N/S):
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	basic_ang=0 sub_angle=1000000 units=0.000001
+	unscaled lat=0 to 180000000 lon=0 to 359000000
diff --git a/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt b/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
index b7494e93..b8a43f49 100644
--- a/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
+++ b/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
@@ -1,84 +1,84 @@
 1:0:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 2:179:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 3:358:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 4:537:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 5:716:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 6:895:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 7:1074:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 8:1253:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 9:1432:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 10:1611:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 11:1790:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 12:1969:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 13:2148:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
 14:2327:grid_template=0:winds(grid):
-	lat-lon grid:(359 x 90) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 89.000000 by 1.000000
-	lon 0.000000 to 358.000000 by 1.000000 #points=32310
+	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 180.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=65160
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 89000000 lon=0 to 358000000
+	unscaled lat=0 to 180000000 lon=0 to 359000000
diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index 93cdcaf9..b15574f0 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -5,12 +5,19 @@
 
 set -e
 
+echo "*** Testing conversion from earth to grid"
 ../wgrib2/wgrib2 data/gdas.t12z.pgrb2.1p00.anl.75r.grib2 -match "(UGRD|VGRD)" -new_grid_winds grid  \
-    -new_grid latlon 0:359:1 0:90:1 new_grid.grb
+    -new_grid latlon 0:360:1 00:181:1 new_grid.grb
 ../wgrib2/wgrib2 new_grid.grb -grid -v2 > new_grid.txt
 touch new_grid.txt
 diff -w new_grid.txt data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
 
+echo "*** Testing conversion from grid to earth"
+../wgrib2/wgrib2 new_grid.grb  -new_grid_winds earth  \
+    -new_grid latlon 0:360:1 00:181:1 new_grid_earth.grb
+../wgrib2/wgrib2 new_grid_earth.grb -grid -v2 > new_grid_earth.txt
+touch new_grid_earth.txt
+diff -w new_grid_earth.txt data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
 
 echo "*** SUCCESS!"
 exit 0
\ No newline at end of file