This commit is the continuing phase of extracting functionality to subcrates. We extract test helpers and begin to change Nu shell's test organization along with it.

tests/plugins/core_inc.rs

@@ -0,0 +1,133 @@
+use test_support::fs::Stub::FileWithContent;
+use test_support::playground::Playground;
+use test_support::{nu, nu_error};
+
+#[test]
+fn can_only_apply_one() {
+    let actual = nu_error!(
+        cwd: "tests/fixtures/formats",
+        "open cargo_sample.toml | first 1 | inc package.version --major --minor"
+    );
+
+    assert!(actual.contains("Usage: inc field [--major|--minor|--patch]"));
+}
+
+#[test]
+fn by_one_with_field_passed() {
+    Playground::setup("plugin_inc_test_1", |dirs, sandbox| {
+        sandbox.with_files(vec![FileWithContent(
+            "sample.toml",
+            r#"
+                    [package]
+                    edition = "2018"
+                "#,
+        )]);
+
+        let actual = nu!(
+            cwd: dirs.test(),
+            "open sample.toml | inc package.edition | get package.edition | echo $it"
+        );
+
+        assert_eq!(actual, "2019");
+    })
+}
+
+#[test]
+fn by_one_with_no_field_passed() {
+    Playground::setup("plugin_inc_test_2", |dirs, sandbox| {
+        sandbox.with_files(vec![FileWithContent(
+            "sample.toml",
+            r#"
+                    [package]
+                    contributors = "2"
+                "#,
+        )]);
+
+        let actual = nu!(
+            cwd: dirs.test(),
+            "open sample.toml | get package.contributors | inc | echo $it"
+        );
+
+        assert_eq!(actual, "3");
+    })
+}
+
+#[test]
+fn semversion_major_inc() {
+    Playground::setup("plugin_inc_test_3", |dirs, sandbox| {
+        sandbox.with_files(vec![FileWithContent(
+            "sample.toml",
+            r#"
+                    [package]
+                    version = "0.1.3"
+                "#,
+        )]);
+
+        let actual = nu!(
+            cwd: dirs.test(),
+            "open sample.toml | inc package.version --major | get package.version | echo $it"
+        );
+
+        assert_eq!(actual, "1.0.0");
+    })
+}
+
+#[test]
+fn semversion_minor_inc() {
+    Playground::setup("plugin_inc_test_4", |dirs, sandbox| {
+        sandbox.with_files(vec![FileWithContent(
+            "sample.toml",
+            r#"
+                    [package]
+                    version = "0.1.3"
+                "#,
+        )]);
+
+        let actual = nu!(
+            cwd: dirs.test(),
+            "open sample.toml | inc package.version --minor | get package.version | echo $it"
+        );
+
+        assert_eq!(actual, "0.2.0");
+    })
+}
+
+#[test]
+fn semversion_patch_inc() {
+    Playground::setup("plugin_inc_test_5", |dirs, sandbox| {
+        sandbox.with_files(vec![FileWithContent(
+            "sample.toml",
+            r#"
+                    [package]
+                    version = "0.1.3"
+                "#,
+        )]);
+
+        let actual = nu!(
+            cwd: dirs.test(),
+            "open sample.toml | inc package.version --patch | get package.version | echo $it"
+        );
+
+        assert_eq!(actual, "0.1.4");
+    })
+}
+
+#[test]
+fn semversion_without_passing_field() {
+    Playground::setup("plugin_inc_test_6", |dirs, sandbox| {
+        sandbox.with_files(vec![FileWithContent(
+            "sample.toml",
+            r#"
+                    [package]
+                    version = "0.1.3"
+                "#,
+        )]);
+
+        let actual = nu!(
+            cwd: dirs.test(),
+            "open sample.toml | get package.version | inc --patch | echo $it"
+        );
+
+        assert_eq!(actual, "0.1.4");
+    })
+}