Implemented a simple PascalCase function to remove strcase dependency (#4428) (#2899)

* Implemented a simple PascalCase function to remove strcase dependency

* Renamed PascalCase -> SnakeToPascalCase

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

.changelog/4428.txt

@@ -0,0 +1,3 @@
+```release-note:none
+
+```

google-beta/resource_compute_instance_from_machine_image.go

@@ -5,7 +5,6 @@ import (
 	"log"
 
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
-	strcase "github.com/stoewer/go-strcase"
 	computeBeta "google.golang.org/api/compute/v0.beta"
 	compute "google.golang.org/api/compute/v1"
 )
@@ -155,7 +154,7 @@ func resourceComputeInstanceFromMachineImageCreate(d *schema.ResourceData, meta
 			// Assume for now that all fields are exact snake_case versions of the API fields.
 			// This won't necessarily always be true, but it serves as a good approximation and
 			// can be adjusted later as we discover issues.
-			instance.ForceSendFields = append(instance.ForceSendFields, strcase.UpperCamelCase(f))
+			instance.ForceSendFields = append(instance.ForceSendFields, SnakeToPascalCase(f))
 		}
 	}
 

google-beta/resource_compute_instance_from_template.go

@@ -5,7 +5,6 @@ import (
 	"log"
 
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
-	strcase "github.com/stoewer/go-strcase"
 	computeBeta "google.golang.org/api/compute/v0.beta"
 	compute "google.golang.org/api/compute/v1"
 )
@@ -154,7 +153,7 @@ func resourceComputeInstanceFromTemplateCreate(d *schema.ResourceData, meta inte
 			// Assume for now that all fields are exact snake_case versions of the API fields.
 			// This won't necessarily always be true, but it serves as a good approximation and
 			// can be adjusted later as we discover issues.
-			instance.ForceSendFields = append(instance.ForceSendFields, strcase.UpperCamelCase(f))
+			instance.ForceSendFields = append(instance.ForceSendFields, SnakeToPascalCase(f))
 		}
 	}
 

google-beta/utils.go

@@ -472,3 +472,11 @@ func generateUserAgentString(d TerraformResourceData, currentUserAgent string) (
 
 	return currentUserAgent, nil
 }
+
+func SnakeToPascalCase(s string) string {
+	split := strings.Split(s, "_")
+	for i := range split {
+		split[i] = strings.Title(split[i])
+	}
+	return strings.Join(split, "")
+}

google-beta/utils_test.go

@@ -597,3 +597,13 @@ func TestConflictError(t *testing.T) {
 	}
 	// skipping negative tests as other cases may be added later.
 }
+
+func TestSnakeToPascalCase(t *testing.T) {
+	input := "boot_disk"
+	expected := "BootDisk"
+	actual := SnakeToPascalCase(input)
+
+	if actual != expected {
+		t.Fatalf("(%s) did not match expected value: %s", actual, expected)
+	}
+}