diff --git a/dotests b/dotests
new file mode 100755
index 0000000..8e2b22f
--- /dev/null
+++ b/dotests
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+MAKEMAP="${1:-/tmp/save/build/src/makemap}"
+TPATH=tests
+
+SCRW=`tput cols`
+
+set -o pipefail
+
+for n in "$TPATH"/*; do
+ status=`cat $n|grep "# Status: "|sed "s/# Status: //"`
+ desc=`cat $n|grep "# Description: "|sed "s/# Description: //"`
+ hash=`cat $n|grep "# Output hash: "|sed "s/.*: //"`
+ while [ ${#desc} -lt $((SCRW-5)) ]; do desc+=" "; done
+ echo -n "$desc"
+ t=`mktemp`
+ grep -v -E "# .*: " "$n">$t
+ thash=`$MAKEMAP "$t" 2>&1 | sha256sum|sed "s/ .*//"`
+ ret=$?
+ if [ "$status" == "ok" ]; then
+  if [ "$hash" == "$thash" -a "$ret" == "0" ]; then
+   echo -e "\033[32mOk \033[0m"
+  else
+   echo -e "\033[31mFail\033[0m"
+  fi
+ else
+  if [ "$hash" == "$thash" -a "$ret" != "0" ]; then
+   echo -e "\033[32mOk \033[0m"
+  else
+   echo -e "\033[31mFail\033[0m"
+  fi
+ fi
+ rm $t
+done
diff --git a/maketest b/maketest
new file mode 100755
index 0000000..2a83959
--- /dev/null
+++ b/maketest
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+name="$1"
+desc="$2"
+TLOC="${3:-/tmp/save/test}"
+MAKEMAP="${4:-/tmp/save/build/src/makemap}"
+
+if [ -f tests/"$name" ]; then
+ echo "Test $name already exist."
+ exit 1
+fi
+
+if [ ! -f "$TLOC" ]; then
+ echo "Configuration file $TLOC not found."
+ exit 2
+fi
+
+if [ ! -x "$MAKEMAP" ]; then
+ echo "Can't exec file $MAKEMAP."
+ exit 3
+fi
+
+echo "# Description: $desc" >tests/$name
+if "$MAKEMAP" "$TLOC" &>/dev/null; then
+ hash=`"$MAKEMAP" "$TLOC" 2>/dev/null|sha256sum|sed "s/ .*//"`
+ status=ok
+else
+ hash=`"$MAKEMAP" "$TLOC" 2>&1|sha256sum|sed "s/ .*//"`
+ status=fail
+fi
+echo "# Status: $status" >>tests/$name
+echo "# Output hash: $hash" >>tests/$name
+cat "$TLOC" >>tests/$name
+ 
\ No newline at end of file
diff --git a/tests/GMTCoord b/tests/GMTCoord
new file mode 100644
index 0000000..55a4acc
--- /dev/null
+++ b/tests/GMTCoord
@@ -0,0 +1,11 @@
+# Description: Coord tests. Must passed.
+# Status: ok
+# Output hash: 1a1ca4aba24d0fe39407eef250167aca5c21373722f5f2a9bd6495cee34abaf2
+@use "gmt"
+
+a=Coord("10:30:18");
+b=Coord(10.5);
+c=Coord(":10:10");
+d=Coord("-0:15:18");
+
+print(a,a.n,b,b.n,c,c.n,d,d.n);
diff --git a/tests/GMTCoord_e1 b/tests/GMTCoord_e1
new file mode 100644
index 0000000..6ecf66b
--- /dev/null
+++ b/tests/GMTCoord_e1
@@ -0,0 +1,8 @@
+# Description: Non-integer degrees in dd:mm:ss mode.
+# Status: fail
+# Output hash: 9469953f706df02349e019f8b47a499d169113b654aee46cacb966d01a27848c
+@use "gmt"
+
+a=Coord("1.0:10");
+
+print(a);
\ No newline at end of file
diff --git a/tests/GMTRegion1 b/tests/GMTRegion1
new file mode 100644
index 0000000..c8e0f3e
--- /dev/null
+++ b/tests/GMTRegion1
@@ -0,0 +1,10 @@
+# Description: Global regions test.
+# Status: ok
+# Output hash: e661246caef9b2a5fa5a96b9d75c0542d2e0e655de9d63d755aff01cd3b4ceba
+@use "gmt"
+
+r1=Region("global");
+r2=Region("global360");
+r3=Region("global180");
+
+print(r1,r1.xb,r1.xe,r2,r2.xb,r2.xe,r3,r3.xb,r3.xe);
diff --git a/tests/GMTRegion2 b/tests/GMTRegion2
new file mode 100644
index 0000000..c5abcba
--- /dev/null
+++ b/tests/GMTRegion2
@@ -0,0 +1,9 @@
+# Description: Test sequential form of Region.
+# Status: ok
+# Output hash: a8006abe2c42b9e34c692ab88cf2f869ad6a01d1f32e6da842c1320f0d253d1c
+@use "gmt"
+
+r1=Region("10:30",20.5,-10.5,100,"bbox");
+r2=Region("10:30",-10.5,20.5,100);
+
+print(r1,r2,r1.yb,r2.yb);
diff --git a/tests/GMTRegion3 b/tests/GMTRegion3
new file mode 100644
index 0000000..13c3232
--- /dev/null
+++ b/tests/GMTRegion3
@@ -0,0 +1,13 @@
+# Description: Check named pairs form of Region.
+# Status: ok
+# Output hash: cf4acbeb2da3156fe52f1f374d4dc83a1aa0ee129a8aa2b1975ec828dd23cabe
+@use "gmt"
+
+r=Region("10:30",-10.5,20.5,100);
+r1=Region(r,type="bbox");
+r2=Region(r,type="global180");
+r3=Region(r,ye=80.5);
+l=(xb=r.xb.n-0.5,(xe=20+r.xb.n-10,yb=-10),(ye="11:30:28"));
+rr=Region(l, type="bbox");
+
+print(r,r1,r2,r3,rr);
diff --git a/tests/GMTRegion_e1 b/tests/GMTRegion_e1
new file mode 100644
index 0000000..6d3b984
--- /dev/null
+++ b/tests/GMTRegion_e1
@@ -0,0 +1,8 @@
+# Description: Check string argument in sequential form of Region.
+# Status: fail
+# Output hash: 8421e39ea376a83938c3d79d803749f038ecd493a490228add4b8d179d4e8f75
+@use "gmt"
+
+r=Region("10:30",-10.5,20.5,100,"global");
+
+print(r);