improve drone ci

.drone.yml

@@ -45,22 +45,52 @@ matrix:
     - 1.11
 
 pipeline:
-  test:
+  build:
     image: golang:${GO_VERSION}
     commands:
       - go get -t -d -v ./...
       - go get -u github.com/go-xorm/core
       - go get -u github.com/go-xorm/builder
       - go build -v
+    when:
+      event: [ push, pull_request ]
+
+  test-sqlite:
+    image: golang:${GO_VERSION}
+    commands:
       - go get -u github.com/wadey/gocovmerge
       - go test -v -race -db="sqlite3" -conn_str="./test.db" -coverprofile=coverage1-1.txt -covermode=atomic
       - go test -v -race -db="sqlite3" -conn_str="./test.db" -cache=true -coverprofile=coverage1-2.txt -covermode=atomic
+    when:
+      event: [ push, pull_request ]
+
+  test-mysql:
+    image: golang:${GO_VERSION}
+    commands:
       - go test -v -race -db="mysql" -conn_str="root:@tcp(mysql)/xorm_test" -coverprofile=coverage2-1.txt -covermode=atomic
       - go test -v -race -db="mysql" -conn_str="root:@tcp(mysql)/xorm_test" -cache=true -coverprofile=coverage2-2.txt -covermode=atomic
+    when:
+      event: [ push, pull_request ]
+
+  test-mymysql:
+    image: golang:${GO_VERSION}
+    commands:
       - go test -v -race -db="mymysql" -conn_str="tcp:mysql*xorm_test/root/" -coverprofile=coverage3-1.txt -covermode=atomic
       - go test -v -race -db="mymysql" -conn_str="tcp:mysql*xorm_test/root/" -cache=true -coverprofile=coverage3-2.txt -covermode=atomic
+    when:
+      event: [ push, pull_request ]
+
+  test-postgres:
+    image: golang:${GO_VERSION}
+    commands:
       - go test -v -race -db="postgres" -conn_str="postgres://postgres:@pgsql/xorm_test?sslmode=disable" -coverprofile=coverage4-1.txt -covermode=atomic
       - go test -v -race -db="postgres" -conn_str="postgres://postgres:@pgsql/xorm_test?sslmode=disable" -cache=true -coverprofile=coverage4-2.txt -covermode=atomic
+    when:
+      event: [ push, pull_request ]
+  
+  test-postgres-schema:
+    image: golang:${GO_VERSION}
+    commands:
       - go test -v -race -db="postgres" -conn_str="postgres://postgres:@pgsql/xorm_test?sslmode=disable" -schema=xorm -coverprofile=coverage5-1.txt -covermode=atomic
       - go test -v -race -db="postgres" -conn_str="postgres://postgres:@pgsql/xorm_test?sslmode=disable" -schema=xorm -cache=true -coverprofile=coverage5-2.txt -covermode=atomic
       - gocovmerge coverage1-1.txt coverage1-2.txt coverage2-1.txt coverage2-2.txt coverage3-1.txt coverage3-2.txt coverage4-1.txt coverage4-2.txt coverage5-1.txt coverage5-2.txt > coverage.txt