test: Added tests for the Azure Key Vault provider

README.md

@@ -93,6 +93,7 @@ gman aws sts get-caller-identity
   - [Local](#provider-local)
   - [AWS Secrets Manager](#provider-aws_secrets_manager)
   - [GCP Secret Manager](#provider-gcp_secret_manager)
+  - [Azure Key Vault](#provider-azure_key_vault)
 - [Run Configurations](#run-configurations)
   - [Environment Variable Secret Injection](#environment-variable-secret-injection)
   - [Inject Secrets via Command-Line Flags](#inject-secrets-via-command-line-flags)
@@ -244,7 +245,7 @@ documented and added without breaking existing setups. The following table shows
 | `local`                                                                                                                  | ✅      | [Local](#provider-local)                             |                                            |
 | [`aws_secrets_manager`](https://docs.aws.amazon.com/secretsmanager/latest/userguide/intro.html)                          | ✅      | [AWS Secrets Manager](#provider-aws_secrets_manager) |                                            |
 | [`hashicorp_vault`](https://www.hashicorp.com/en/products/vault)                                                         | 🕒     |                                                      |                                            |
-| [`azure_key_vault`](https://azure.microsoft.com/en-us/products/key-vault/)                                               | 🕒     |                                                      |                                            |
+| [`azure_key_vault`](https://azure.microsoft.com/en-us/products/key-vault/)                                               | ✅      | [Azure Key Vault](#provider-azure_key_vault)         |                                            |
 | [`gcp_secret_manager`](https://cloud.google.com/security/products/secret-manager?hl=en)                                  | ✅      | [GCP Secret Manager](#provider-gcp_secret_manager)   |                                            |
 | [`1password`](https://1password.com/)                                                                                    | 🕒     |                                                      |                                            |
 | [`bitwarden`](https://bitwarden.com/)                                                                                    | 🕒     |                                                      |                                            |
@@ -360,6 +361,35 @@ Important notes:
   add a new version.
 - `get` returns the latest version; older versions remain unless you delete the secret.
 
+### Provider: `azure_key_vault`
+
+The `azure_key_vault` provider uses Azure Key Vault as the backing storage location for secrets.
+
+- Requires: `vault_name` (Key Vault name; the endpoint is constructed as `https://<vault_name>.vault.azure.net`).
+
+Configuration example:
+
+```yaml
+default_provider: azure
+providers:
+  - name: azure
+    type: azure_key_vault
+    vault_name: my-vault-name
+```
+
+Authentication:
+- Use the Azure CLI and ensure you are logged in: `az login`.
+- If needed, select the correct subscription: `az account set -s <subscription-id-or-name>`.
+- The provider uses `DefaultAzureCredential`, which can authenticate via Azure CLI, environment variables, managed 
+  identity, etc.
+
+Important notes:
+- Deleting a secret removes the entire secret and all its versions, not just the latest version. Depending on your 
+  vault’s soft-delete settings, the secret may enter a deleted state until purged.
+- `set`/`update` create a new secret version each time; reads return the latest by default.
+- Ensure your identity has the necessary Key Vault permissions (RBAC such as `Key Vault Secrets User`/`Administrator`, 
+  or appropriate access policies) for get/set/list/delete.
+
 ## Run Configurations
 
 Run configurations (or "profiles") tell `gman` how to inject secrets into a command. Three modes of secret injection are

src/providers/mod.rs

@@ -8,12 +8,12 @@ pub mod gcp_secret_manager;
 mod git_sync;
 pub mod local;
 
-use std::fmt;
 use crate::providers::local::LocalProvider;
 use anyhow::{Result, anyhow};
 use aws_secrets_manager::AwsSecretsManagerProvider;
 use gcp_secret_manager::GcpSecretManagerProvider;
 use serde::{Deserialize, Serialize};
+use std::fmt;
 use std::fmt::{Display, Formatter};
 use validator::{Validate, ValidationErrors};
 
@@ -73,7 +73,7 @@ impl Validate for SupportedProvider {
             SupportedProvider::Local { provider_def } => provider_def.validate(),
             SupportedProvider::AwsSecretsManager { provider_def } => provider_def.validate(),
             SupportedProvider::GcpSecretManager { provider_def } => provider_def.validate(),
-						SupportedProvider::AzureKeyVault { provider_def } => provider_def.validate(),
+            SupportedProvider::AzureKeyVault { provider_def } => provider_def.validate(),
         }
     }
 }
@@ -92,7 +92,7 @@ impl Display for SupportedProvider {
             SupportedProvider::Local { .. } => write!(f, "local"),
             SupportedProvider::AwsSecretsManager { .. } => write!(f, "aws_secrets_manager"),
             SupportedProvider::GcpSecretManager { .. } => write!(f, "gcp_secret_manager"),
-						SupportedProvider::AzureKeyVault { .. } => write!(f, "azure_key_vault"),
+            SupportedProvider::AzureKeyVault { .. } => write!(f, "azure_key_vault"),
         }
     }
 }

tests/providers/azure_key_vault_tests.rs

@@ -0,0 +1,71 @@
+use gman::config::{Config, ProviderConfig};
+use gman::providers::azure_key_vault::AzureKeyVaultProvider;
+use gman::providers::{SecretProvider, SupportedProvider};
+use pretty_assertions::{assert_eq, assert_str_eq};
+use validator::Validate;
+
+#[test]
+fn test_azure_provider_name() {
+    let provider = AzureKeyVaultProvider {
+        vault_name: Some("my-vault".into()),
+    };
+    assert_str_eq!(provider.name(), "AzureKeyVaultProvider");
+}
+
+#[test]
+fn test_azure_provider_validation_ok() {
+    let provider = AzureKeyVaultProvider {
+        vault_name: Some("vault-prod".into()),
+    };
+    assert!(provider.validate().is_ok());
+}
+
+#[test]
+fn test_azure_provider_missing_vault_name() {
+    let provider = AzureKeyVaultProvider { vault_name: None };
+    assert!(provider.validate().is_err());
+}
+
+#[test]
+fn test_supported_provider_display_and_validate() {
+    let sp = SupportedProvider::AzureKeyVault {
+        provider_def: AzureKeyVaultProvider {
+            vault_name: Some("kv-demo".into()),
+        },
+    };
+    assert!(sp.validate().is_ok());
+    assert_eq!(sp.to_string(), "azure_key_vault");
+}
+
+#[test]
+fn test_provider_config_with_azure_deserialize_and_extract() {
+    // Minimal ProviderConfig YAML using the azure_key_vault variant
+    let yaml = r#"---
+name: azure
+type: azure_key_vault
+vault_name: my-vault
+"#;
+
+    let pc: ProviderConfig = serde_yaml::from_str(yaml).expect("valid provider config yaml");
+    assert!(pc.validate().is_ok());
+
+    let mut pc_owned = pc.clone();
+    let provider: &mut dyn SecretProvider = pc_owned.extract_provider();
+    assert_eq!(provider.name(), "AzureKeyVaultProvider");
+
+    // Round-trip through Config with default_provider
+    let cfg_yaml = r#"---
+default_provider: azure
+providers:
+  - name: azure
+    type: azure_key_vault
+    vault_name: my-vault
+"#;
+    let cfg: Config = serde_yaml::from_str(cfg_yaml).expect("valid config yaml");
+    assert!(cfg.validate().is_ok());
+
+    let extracted = cfg
+        .extract_provider_config(None)
+        .expect("should find default provider");
+    assert_eq!(extracted.name.as_deref(), Some("azure"));
+}

tests/providers/gcp_secret_manager_tests.rs

@@ -22,7 +22,9 @@ fn test_gcp_provider_validation_ok() {
 
 #[test]
 fn test_gcp_provider_missing_project() {
-    let provider = GcpSecretManagerProvider { gcp_project_id: None };
+    let provider = GcpSecretManagerProvider {
+        gcp_project_id: None,
+    };
     assert!(provider.validate().is_err());
 }
 
@@ -71,4 +73,3 @@ providers:
         .expect("should find default provider");
     assert_eq!(extracted.name.as_deref(), Some("gcp"));
 }
-

tests/providers/mod.rs

@@ -1,4 +1,5 @@
 mod aws_secrets_manager_tests;
+mod azure_key_vault_tests;
 mod gcp_secret_manager_tests;
 mod local_tests;
 mod provider_tests;