$ make testacc TESTS=TestAccDataSourceMackerelDashboard              
TF_ACC=1 go test -v ./mackerel/... -run TestAccDataSourceMackerelDashboard -timeout 120m
=== RUN   TestAccDataSourceMackerelDashboardGraph
=== PAUSE TestAccDataSourceMackerelDashboardGraph
=== RUN   TestAccDataSourceMackerelDashboardValue
=== PAUSE TestAccDataSourceMackerelDashboardValue
=== RUN   TestAccDataSourceMackerelDashboardMarkdown
=== PAUSE TestAccDataSourceMackerelDashboardMarkdown
=== RUN   TestAccDataSourceMackerelDashboardAlertStatus
=== PAUSE TestAccDataSourceMackerelDashboardAlertStatus
=== CONT  TestAccDataSourceMackerelDashboardGraph
=== CONT  TestAccDataSourceMackerelDashboardMarkdown
=== CONT  TestAccDataSourceMackerelDashboardAlertStatus
=== CONT  TestAccDataSourceMackerelDashboardValue
--- PASS: TestAccDataSourceMackerelDashboardMarkdown (5.20s)
--- PASS: TestAccDataSourceMackerelDashboardGraph (5.48s)
--- PASS: TestAccDataSourceMackerelDashboardAlertStatus (6.57s)
--- PASS: TestAccDataSourceMackerelDashboardValue (6.66s)
PASS
ok      github.com/mackerelio-labs/terraform-provider-mackerel/mackerel 6.989s

$ make testacc TESTS=TestAccMackerelDashboard           
TF_ACC=1 go test -v ./mackerel/... -run TestAccMackerelDashboard -timeout 120m
=== RUN   TestAccMackerelDashboardGraph
=== PAUSE TestAccMackerelDashboardGraph
=== RUN   TestAccMackerelDashboardValue
=== PAUSE TestAccMackerelDashboardValue
=== RUN   TestAccMackerelDashboardMarkdown
=== PAUSE TestAccMackerelDashboardMarkdown
=== RUN   TestAccMackerelDashboardAlertStatus
=== PAUSE TestAccMackerelDashboardAlertStatus
=== CONT  TestAccMackerelDashboardGraph
=== CONT  TestAccMackerelDashboardMarkdown
=== CONT  TestAccMackerelDashboardAlertStatus
=== CONT  TestAccMackerelDashboardValue
--- PASS: TestAccMackerelDashboardMarkdown (8.60s)
--- PASS: TestAccMackerelDashboardAlertStatus (10.37s)
--- PASS: TestAccMackerelDashboardValue (10.55s)
--- PASS: TestAccMackerelDashboardGraph (10.67s)
PASS
ok      github.com/mackerelio-labs/terraform-provider-mackerel/mackerel   11.008s

$ terraform init
$ terraform apply

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # mackerel_dashboard.foo will be created
  + resource "mackerel_dashboard" "foo" {
      + id       = (known after apply)
      + memo     = "This dashboard is managed by Terraform."
      + title    = "from terrafrom"
      + url_path = "foobar"

      + alert_status {
          + role_fullname = "hatena-mac:hatena-mac"
          + title         = "test alertStatus"

          + layout {
              + height = 4
              + width  = 3
              + x      = 7
              + y      = 10
            }
        }

      + graph {
          + title = "test graph role"

          + layout {
              + height = 8
              + width  = 10
              + x      = 0
              + y      = 0
            }

          + range {

              + relative {
                  + offset = 1800
                  + period = 3600
                }
            }

          + role {
              + is_stacked    = true
              + name          = "loadavg5"
              + role_fullname = "hatena-mac:hatena-mac"
            }
        }

      + markdown {
          + markdown = "# h1"
          + title    = "test markdown"

          + layout {
              + height = 4
              + width  = 3
              + x      = 0
              + y      = 10
            }
        }

      + value {
          + fraction_size = 5
          + suffix        = "test suffix"
          + title         = "test value expression"

          + layout {
              + height = 5
              + width  = 7
              + x      = 12
              + y      = 0
            }

          + metric {
              + expression {
                  + expression = "role(hatena-mac:hatena-mac, loadavg5)"
                }
            }
        }
    }

Plan: 1 to add, 0 to change, 0 to destroy.

Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

  Enter a value: yes

mackerel_dashboard.foo: Creating...
mackerel_dashboard.foo: Creation complete after 1s [id=4HGws7s4qpj]

Apply complete! Resources: 1 added, 0 changed, 0 destroyed.