chore: add credential provider tests

spec/unit/credential_provider/ClientCredentialProvider.spec.ts

@@ -0,0 +1,22 @@
+import ClientCredentialProvider from "../../../src/credential_provider/ClientCredentialProvider";
+import TokenAuthStrategy from "../../../src/auth_strategy/TokenAuthStrategy";
+
+describe("ClientCredentialProvider Constructor", () => {
+  const clientCredentialProvider =
+    new ClientCredentialProvider.ClientCredentialProviderBuilder()
+      .setClientId("clientId")
+      .setClientSecret("clientSecret")
+      .build();
+
+  it("Should have client-credentials as its authType", () => {
+    expect(clientCredentialProvider.getAuthType()).toEqual(
+      "client-credentials"
+    );
+  });
+
+  it("Should return NoAuthStrategy as its auth strategy", () => {
+    expect(clientCredentialProvider.toAuthStrategy()).toBeInstanceOf(
+      TokenAuthStrategy
+    );
+  });
+});

spec/unit/credential_provider/NoAuthCredentialProvider.spec.ts

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+import NoAuthCredentialProvider from "../../../src/credential_provider/NoAuthCredentialProvider";
+import NoAuthStrategy from "../../../src/auth_strategy/NoAuthStrategy";
+
+describe("NoAuthCredentialProvider Constructor", () => {
+  const noAuthCredentialProvider =
+    new NoAuthCredentialProvider.NoAuthCredentialProvider();
+
+  it("Should have client-credentials as its authType", () => {
+    expect(noAuthCredentialProvider.getAuthType()).toEqual("noauth");
+  });
+
+  it("Should return NoAuthStrategy as its auth strategy", () => {
+    expect(noAuthCredentialProvider.toAuthStrategy()).toBeInstanceOf(
+      NoAuthStrategy
+    );
+  });
+});

spec/unit/credential_provider/OrgsCredentialProvider.spec.ts

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+import OrgsCredentialProvider from "../../../src/credential_provider/OrgsCredentialProvider";
+import TokenAuthStrategy from "../../../src/auth_strategy/TokenAuthStrategy";
+
+describe("OrgsCredentialProvider Constructor", () => {
+  const orgsCredentialProvider =
+    new OrgsCredentialProvider.OrgsCredentialProviderBuilder()
+      .setClientId("clientId")
+      .setClientSecret("clientSecret")
+      .build();
+
+  it("Should have client-credentials as its authType", () => {
+    expect(orgsCredentialProvider.getAuthType()).toEqual(
+      "client-credentials"
+    );
+  });
+
+  it("Should return NoAuthStrategy as its auth strategy", () => {
+    expect(orgsCredentialProvider.toAuthStrategy()).toBeInstanceOf(
+      TokenAuthStrategy
+    );
+  });
+});